Pub Date : 2020-09-30DOI: 10.31186/JENGGANO.5.2.258-272
Sumino Sumino, I. Saputra, Herman Mude
Provinsi Lampung merupakan salah satu wilayah penghasil udang vaname terbesar di Indonesia. Produktivitas udang vaname di Lampung mengalami pasang surut, salah satunya dikarenakan serangan penyakit golongan virus seperti WSSV, IHHNV dan IMNV. Penelitian ini bertujuan untuk mengevaluasi status penyebaran penyakit WSSV, IHHNV dan IMNV pada udang vaname dan mengevaluasi keefektifan penerapan Cara Karantina Ikan yang Baik (CKIB) dalam menekan penyebaran virus tersebut di Provinsi Lampung. Pada penelitian ini, dilakukan pengumpulan data pengujian pada tahun 2019 yang berasal dari sampel umum, kegiatan pemantauan Penyakit Ikan Karantina (PIK) dan kegiatan CKIB, kemudian dilakukan analisa secara deskriptif. Hasil penelitian menunjukkan bahwa di Provinsi Lampung masih terdapat penyakit virus udang yaitu WSSV, IHHNV dan WSSV yang tersebar di sentra budidaya udang vaname. Dari sejumlah 624 total sampel pengujian, sebanyak 8.97% positif terinfeksi penyakit virus. WSSV memiliki tingkat infeksi terbesar yaitu 58.9%. Sedangkan untuk IMNV dan IHHNV masing-masing sebesar 33.9% dan 7.1%. Berdasarkan asal sampel pengujian dapat diketahui bahwa sampel yang diperoleh dari pembudidaya yang telah menerapkan CKIB menunjukkan hasil negatif untuk ketiga jenis virus target tersebut. Hal tersebut memberikan gambaran bahwa dengan penerapan CKIB secara konsisten dapat mengurangi tingkat penyebaran penyakit virus pada budidaya udang vaname.ROLES OF GOOD QUARANTINE PRACTICES IN THE SPREAD OF VIRUS DISEASES OF VANNAMEI SHRIMP (Litopenaeus vannamei) IN PROVINCE OF LAMPUNG. Lampung is one of the largest whiteleg shrimp (L. vannamei) producers in Indonesia. Whiteleg shrimp productivity in Lampung has fluctuated, one of which is due to infectious by virus disease. This study evaluated the current status of WSSV, IHHNV and WSSV diseases in whiteleg shrimp cultivation and assesses the effectivity of CKIB implementation in preventing the outspread of the shrimp viral diseases in Lampung. In this study, data from general samples, diseases monitoring/surveillance and Good Quarantine Practices (GQP) activities in 2019 were collected and then analyzed descriptively. Here, were report the emergence of shrimp viral diseases, e.g. WSSV, IHHNV and WSSV, in whiteleg shrimp aquaculture in Lampung. Infected shrimp were found in 8.97% of 624 tested samples. WSSV has the highest infection rate (58.9%) and followed by IMNV and IHHNV (33.9% and 7.1%, respectively). The samples collected from whiteleg shrimp aquaculture centre that applied GQP showed negative viral disease infection. These results demonstrate that consistent application of GQP in whiteleg shrimp cultivation can prevent the spread of shrimp viral disease.
{"title":"PERAN CARA KARANTINA IKAN YANG BAIK (CKIB) DALAM PENCEGAHAN PENYAKIT VIRUS PADA UDANG VANAME (Litopenaeus vannamei) DI PROVINSI LAMPUNG","authors":"Sumino Sumino, I. Saputra, Herman Mude","doi":"10.31186/JENGGANO.5.2.258-272","DOIUrl":"https://doi.org/10.31186/JENGGANO.5.2.258-272","url":null,"abstract":"Provinsi Lampung merupakan salah satu wilayah penghasil udang vaname terbesar di Indonesia. Produktivitas udang vaname di Lampung mengalami pasang surut, salah satunya dikarenakan serangan penyakit golongan virus seperti WSSV, IHHNV dan IMNV. Penelitian ini bertujuan untuk mengevaluasi status penyebaran penyakit WSSV, IHHNV dan IMNV pada udang vaname dan mengevaluasi keefektifan penerapan Cara Karantina Ikan yang Baik (CKIB) dalam menekan penyebaran virus tersebut di Provinsi Lampung. Pada penelitian ini, dilakukan pengumpulan data pengujian pada tahun 2019 yang berasal dari sampel umum, kegiatan pemantauan Penyakit Ikan Karantina (PIK) dan kegiatan CKIB, kemudian dilakukan analisa secara deskriptif. Hasil penelitian menunjukkan bahwa di Provinsi Lampung masih terdapat penyakit virus udang yaitu WSSV, IHHNV dan WSSV yang tersebar di sentra budidaya udang vaname. Dari sejumlah 624 total sampel pengujian, sebanyak 8.97% positif terinfeksi penyakit virus. WSSV memiliki tingkat infeksi terbesar yaitu 58.9%. Sedangkan untuk IMNV dan IHHNV masing-masing sebesar 33.9% dan 7.1%. Berdasarkan asal sampel pengujian dapat diketahui bahwa sampel yang diperoleh dari pembudidaya yang telah menerapkan CKIB menunjukkan hasil negatif untuk ketiga jenis virus target tersebut. Hal tersebut memberikan gambaran bahwa dengan penerapan CKIB secara konsisten dapat mengurangi tingkat penyebaran penyakit virus pada budidaya udang vaname.ROLES OF GOOD QUARANTINE PRACTICES IN THE SPREAD OF VIRUS DISEASES OF VANNAMEI SHRIMP (Litopenaeus vannamei) IN PROVINCE OF LAMPUNG. Lampung is one of the largest whiteleg shrimp (L. vannamei) producers in Indonesia. Whiteleg shrimp productivity in Lampung has fluctuated, one of which is due to infectious by virus disease. This study evaluated the current status of WSSV, IHHNV and WSSV diseases in whiteleg shrimp cultivation and assesses the effectivity of CKIB implementation in preventing the outspread of the shrimp viral diseases in Lampung. In this study, data from general samples, diseases monitoring/surveillance and Good Quarantine Practices (GQP) activities in 2019 were collected and then analyzed descriptively. Here, were report the emergence of shrimp viral diseases, e.g. WSSV, IHHNV and WSSV, in whiteleg shrimp aquaculture in Lampung. Infected shrimp were found in 8.97% of 624 tested samples. WSSV has the highest infection rate (58.9%) and followed by IMNV and IHHNV (33.9% and 7.1%, respectively). The samples collected from whiteleg shrimp aquaculture centre that applied GQP showed negative viral disease infection. These results demonstrate that consistent application of GQP in whiteleg shrimp cultivation can prevent the spread of shrimp viral disease.","PeriodicalId":33425,"journal":{"name":"Jurnal Enggano","volume":"232 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75118966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ekosistem mangrove berperan sebagai habitat berbagai jenis satwa, salah satunya yaitu makrozoobenthos. Makrozoobenthos berperan sebagai konsumen primer dan ada pula yang berperan sebagai konsumen sekunder atau konsumen yang menempati tempat yang lebih tinggi. Pada umumnya, Makrozoobenthos merupakan makanan alami bagi berbagai satwa perairan yang berukuran besar. Penelitian ini bertujuan menganalisis kelimpahan makrozoobenthos dan menganalisis struktur komunitas makrozoobenthos di kawasan ekosistem mangrove Daruba Pantai. Penelitian ini dilaksanakan pada bulan November sampai Desember 2019 yang berlokasi di kawasan Mangrove Desa Daruba Pantai. Pengambilan data menggunakan metode sampel kuadrat (Quadrat Sampling) dengan ukuran plot 1x1 m2. Metode analisis data menggunakan analisis indeks ekologi seperti kelimpahan individu, kelimpahan relatif, keanekaragaman jenis, keseragaman dan dominasi. Hasil penelitian menunjukan kelimpahan individu makrozoobenthos tertinggi berada pada stasiun ke I yaitu 33,333 (Ind/m2) dan terendah berada di stasiun I dan II yaitu Polymesoda bengalensis 1,111 (Ind/m2). Sedangkan Kelimpahan Relatif tertinggi ada di stasiun II yaitu Episesarma (0,200 %) dan terendah ada di stasiun I dan II yaitu Polymesoda bengalensis (0,007 %). Hasil analisis indeks ekologi Keanekragaman (H’) stasiun I yaitu (2,146), stasiun II (2,158) dan stasiun III (2,131) termasuk dalam kategori sedang. Indeks Keseragaman (E) pada stasiun I berkisar (0,895), stasiun II (0,900), sedangkan pada stasiun III (0,925) termasuk dalam kategori tinggi. Indeks Dominasi pada stasiun I yaitu (0,132), stasiun II (0,132) dan pada stasiun III yaitu (0,130) termasuk dalam kategori rendah.THE DIVERSITY AND ABUNDANCE OF MACROZOOBENTHOS IN MANGROVE ECOSYSTEMS AT DARUBA VILLAGE COASTAL PULAU MOROTAI REGENCY. Mangrove ecosystems play a role as a habitat for various species of animals, one of which is macrozoobenthos. Macrozoobenthos acts as the primary consumer and some have a role as secondary consumers or consumers who occupy a higher place. In general, Macrozoobenthos is a natural food for a variety of large aquatic animals. This research aims to analyze the abundance of macrozoobenthos and analyze the structure of the macrozoos community in the area of the Daruba Coastal mangrove ecosystem. This research was conducted from November to December 2019 located in the Mangrove area of Daruba Pantai Village. Retrieval of data using the method of quadratic sampling (Quadrat Sampling) with a plot size of 1x1 m2. Data analysis methods use ecological index analysis such as individual abundance, relative abundance, species diversity, uniformity, and dominance. The results showed the highest abundance of macrozoobenthos individuals were at a station I which was 33,333 (Ind / m2) and the lowest was at stations I and II namely Polymesoda bengalensis 1.111 (Ind / m2). While the highest relative abundance in at station II, Episesarma (0.200%) and the lowest are at a station I and II, Pol
红树林生态系统是一种不同种类的动物的栖息地，其中之一就是宏观动物学。宏观zoobenthos是初级消费者，也有次要消费者或占据较高位置的消费者。一般来说，宏观zoobenthos是大型水生动物的天然食物。该研究的目标是分析巨藻贝索斯的丰富性，分析沿海红树林生态系统区域巨藻贝索斯社区的结构。这项研究是在2019年11月至12月在Mangrove村Daruba海滩进行的。数据提取方法采用1×1平方(Quadrat抽样)的抽样方法进行。数据分析方法利用生态索引分析，如个体多、相对多、种类多样性、统一性和支配。研究表明，最大的个体比邻素(Ind/m2)在I站的位置为33.333 (Ind/m2)，在I站和第二站的位置为1111 (Ind/m2)。在II站，Episesarma(0.200 %)和第二站，Polymesoda bengalensis(0.00%)的相对丰富性比较高。生物生态指数(H’)分析的第一站(2,146)、第二站(2,158)和第三站(2,131)属于中等类别。第一个站的均匀索引(E)范围(0.895)，第二站(0.900)，而第三站(0.925)属于高类别。一号站(0.132)、第二站(0.132)和第三站的优势指数(0.130)属于较低的类别。位于莫尔泰岛海岸线的达鲁巴村系统的MACROZOOBENTHOS的多样性和元素。Mangrove ecosystems将角色扮演为各种动物的栖息地，其中一个是macrozoobenthos。作为主要的消费者，一些人扮演着一个次要的骗子或顾客，他们占据了一个更高的地方。在一般情况下，Macrozoobenthos是一种天然的大型水族动物。这一研究允许对macrozoobenthos的abundance进行分析，并分析daruzoos社区在Daruba海岸红树林生态系统中的结构。这项研究是去年11月至2019年12月在达鲁巴海滩村的芒丘区进行的。采用Quadrat样本的方法进行数据检索，其面积为1×1平方公里。我们的方法分析数据用我们的生态分析指数最近的人称macrozoobenthos的主要abundance是在我33.333 (Ind / m2)和lowest的位置，我和I - namely polyme苏打1111 (Ind / m2)。虽然在II站，Episesarma(0.200%)和lowest在I和II站，Polymesoda bengalensis(0.007%)中最重要的关系出现了。对生态多样性分析的结果包括了中继站I、namely(2,146)、Station II(2,158)和站III(2,131)。《我的名字》(0.895)、《车站》(a0900)、《车站III》(10925)都包括在高级教义中。《统治索引》在《The Domination Index at The station I》(The .132)、《The station II》(The .132)和《The station III》(The 10130)都很低调。
{"title":"KEANEKARAGAMAN DAN KELIMPAHAN MAKROZOOBENTHOS PADA EKOSISTEM MANGROVE DESA DARUBA PANTAI KABUPATEN PULAU MOROTAI","authors":"Djainudin Alwi, Sandra Hi. Muhammad, Henderson Herat","doi":"10.31186/JENGGANO.5.1.64-77","DOIUrl":"https://doi.org/10.31186/JENGGANO.5.1.64-77","url":null,"abstract":"Ekosistem mangrove berperan sebagai habitat berbagai jenis satwa, salah satunya yaitu makrozoobenthos. Makrozoobenthos berperan sebagai konsumen primer dan ada pula yang berperan sebagai konsumen sekunder atau konsumen yang menempati tempat yang lebih tinggi. Pada umumnya, Makrozoobenthos merupakan makanan alami bagi berbagai satwa perairan yang berukuran besar. Penelitian ini bertujuan menganalisis kelimpahan makrozoobenthos dan menganalisis struktur komunitas makrozoobenthos di kawasan ekosistem mangrove Daruba Pantai. Penelitian ini dilaksanakan pada bulan November sampai Desember 2019 yang berlokasi di kawasan Mangrove Desa Daruba Pantai. Pengambilan data menggunakan metode sampel kuadrat (Quadrat Sampling) dengan ukuran plot 1x1 m2. Metode analisis data menggunakan analisis indeks ekologi seperti kelimpahan individu, kelimpahan relatif, keanekaragaman jenis, keseragaman dan dominasi. Hasil penelitian menunjukan kelimpahan individu makrozoobenthos tertinggi berada pada stasiun ke I yaitu 33,333 (Ind/m2) dan terendah berada di stasiun I dan II yaitu Polymesoda bengalensis 1,111 (Ind/m2). Sedangkan Kelimpahan Relatif tertinggi ada di stasiun II yaitu Episesarma (0,200 %) dan terendah ada di stasiun I dan II yaitu Polymesoda bengalensis (0,007 %). Hasil analisis indeks ekologi Keanekragaman (H’) stasiun I yaitu (2,146), stasiun II (2,158) dan stasiun III (2,131) termasuk dalam kategori sedang. Indeks Keseragaman (E) pada stasiun I berkisar (0,895), stasiun II (0,900), sedangkan pada stasiun III (0,925) termasuk dalam kategori tinggi. Indeks Dominasi pada stasiun I yaitu (0,132), stasiun II (0,132) dan pada stasiun III yaitu (0,130) termasuk dalam kategori rendah.THE DIVERSITY AND ABUNDANCE OF MACROZOOBENTHOS IN MANGROVE ECOSYSTEMS AT DARUBA VILLAGE COASTAL PULAU MOROTAI REGENCY. Mangrove ecosystems play a role as a habitat for various species of animals, one of which is macrozoobenthos. Macrozoobenthos acts as the primary consumer and some have a role as secondary consumers or consumers who occupy a higher place. In general, Macrozoobenthos is a natural food for a variety of large aquatic animals. This research aims to analyze the abundance of macrozoobenthos and analyze the structure of the macrozoos community in the area of the Daruba Coastal mangrove ecosystem. This research was conducted from November to December 2019 located in the Mangrove area of Daruba Pantai Village. Retrieval of data using the method of quadratic sampling (Quadrat Sampling) with a plot size of 1x1 m2. Data analysis methods use ecological index analysis such as individual abundance, relative abundance, species diversity, uniformity, and dominance. The results showed the highest abundance of macrozoobenthos individuals were at a station I which was 33,333 (Ind / m2) and the lowest was at stations I and II namely Polymesoda bengalensis 1.111 (Ind / m2). While the highest relative abundance in at station II, Episesarma (0.200%) and the lowest are at a station I and II, Pol","PeriodicalId":33425,"journal":{"name":"Jurnal Enggano","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86197509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-09-30DOI: 10.31186/jenggano.4.2.160-173
Zamdial Zamdial, Dede Hartono, Ari Anggoro, Ali Muqsit
Pulau Enggano dengan luas ± 400,6 km2 (± 40.600 hektar) adalah sebuah pulau kecil terluar di Provinsi Bengkulu yang terletak di Perairan Barat Sumatera, dan termasuk wilayah Kabupaten Bengkulu Utara. Salah satu sumberdaya alam yang dominan di Pulau Enggano adalah ekosistem terumbu karang yang memberikan manfaat begitu besar bagi kehidupan masyarakat di Pulau Enggano. Penelitian ini bertujuan untuk menghitung valuasi ekonomi ekosistem terumbu karang di Pulau Enggano, untuk kepentingan perencanaan pemanfaatan dan pengelolaan secara berkelanjutan. Penelitian ini dilakukan dengan Metode Survai. Data parameter kualitas air dikumpulkan dengan pengukuran langsung di lokasi penelitian. Data untuk menghitung nilai keberadaan ekosistem terumbu karang dikumpulkan dengan metode wawancara terhadap 180 orang responden yang dipilih secara purposive sampling. Nilai ekonomi total ekosistem terumbu karang dianalisis dan dihitung berdasarkan nilai manfaat langsung, nilai manfaat tidak langsung, nilai manfaat pilihan dan nilai manfaat warisan. Nilai rata-rata parameter perairan di perairan Pulau Enggano secara berturut-turut adalah suhu (29,660C), salinitas (35,06 ‰), kuat arus (2,13 m/s), kecerahan 5,33 m), Oksigen Terlarut/DO (7,39 mg/l), dan pH (7,13). Nilai parameter perairan menunjukkan kondisi perairan yang masih baik dan belum tercemar sehingga dapat mendukung keberadaan dan pertumbuhan ekosistem terumbu karang di Perairan Pulau Enggano. Luas ekosistem terumbu karang di Pulau Enggano ± 5.097 hektar. Nilai manfaat ekonomi total ekosistem terumbu karang adalah Rp. 176.901.038.387,- per tahun, yang terdiri dari nilai manfaat langsung Rp. 561.327.640,- per tahun; nilai manfaat tidak langsung Rp. 46.342.500.000,- per tahun, nilai manfaat pilihan Rp. 2.516.077.983,- , nilai manfaat keberadaan Rp. 127.425.000.000,- per tahun dan nilai warisan Rp. 56.132.764,- per tahun.ECONOMIC VALUATION OF CORAL REEF IN ENGGANO ISLAND, NORTH BENGKULU REGENCY, BENGKULU PROVINCE. Enggano Island with area of ± 400.6 km2 (± 40,600 hectares) is an the outer small island in Bengkulu Province that located in the West Coast of Sumatra, and include of North Bengkulu Regency. One of the dominant natural resources in Enggano Island is a coral reef ecosystem that provides enormous benefits to people's lives in Enggano Island. This study aims to calculate the economic valuation of coral reef ecosystems in Enggano Island, for stake of planning, utilization and sustainable management. This research is done by Survey Method. The data of water quality parameter was collected by direct measurement at the study location. Data to calculate the existence value of coral reef ecosystem was collected by interview method to 180 respondents that chosen by purposive sampling. The total economic value of coral reef ecosystems is analyzed and calculated based on the direct value, indirect value, option value and bequest value. The average values of water parameters in Enggano Island waters are (29,66 oC), sal
Enggano岛的面积±400.6平方公里(40平方英里(±40600英亩)是一个小岛,位于苏门答腊西部水域的班古鲁省的最外层,包括班古鲁县北部。Enggano岛上的主要自然资源之一是珊瑚礁生态系统，它极大地造福了Enggano岛上的人们。本研究旨在评估恩格尔加诺岛珊瑚礁生态系统的经济评估，以评估利用和可持续管理。这项研究是通过Survai的方法进行的。通过在研究地点直接测量对水质量参数进行收集数据。以计算珊瑚礁生态系统存在价值的数据，以对180名经过采样挑选的受访者进行采访。珊瑚礁生态系统的经济总价值是根据直接利益、间接利益的价值、选择的价值和遗传利益的价值来分析和计算的。平均成绩在Enggano岛水域水域连续参数是(29,660C)的温度,盐度(35.06‰),强大的电流(2.13 m / s),亮度5,33),溶解氧气- DO (7.39 mg / l), pH值(7,13)。海水参数的价值表明，这些水域处于良好和未受污染的环境中，从而支持Enggano岛上珊瑚礁生态系统的存在和发展。岛上大片珊瑚礁生态系统Enggano±5.097公顷。珊瑚礁生态系统总经济效益的价值是每年$ 176,901,38387，由$ . 561,327,640直接效益值组成;每年一度的收益间接价值44.2550万卢比，2.516,077,983卢比选择的收益值，-每年12万7400万卢比存在的价值，以及56,132,764卢比的遗产价值。北班古鲁摄政省北班古鲁省珊瑚珊瑚价格评估。Enggano岛用±400的区域。6平方公里(40平方英里(±40,600 hectares)是一个外斯莫尔岛》(West Coast》班古鲁省的定位在苏门答腊,摄政》和北include班古鲁。恩格尔加诺岛的一种统治自然资源是一种珊瑚礁生态系统，可以提供在恩格尔加诺岛上人们的生活。这项研究旨在calculate江加罗岛珊瑚生态评估，以改善计划、公用事业和可持续管理的情况。这项研究是通过调查方法完成的。水质量数据在研究地点由直接测量参数收集。采样行业的数据被收集到珊瑚礁的存在价值的数据，由被采样路线选中的180人的方法采访。珊瑚礁生态系统的总经济价值是分析和计算的基于direct、indirect值、option值和be求值。水在parameters Enggano岛水域平均价值观》35英亩(29.66 oC), salinity(06‰),当前速度(2。13 m / s),水亮度(5。33英尺),氧Dissolved (7 . 39 mg / l), 13)和pH(7。沃特斯的表情表明，沃特斯的情况仍然很好，没有接触到，所以它可以支持在Enggano Island waters的珊瑚气候的存在和发展。珊瑚礁生态系统在Enggano》之宽岛±5,097 hectares。珊瑚礁生态系统的总经济价值为Rp.176,901,038,387，-每年，总计示总销售额为56,327,640;每年，选择值2,516.077,983，-每年，存在价值127,4500万卢比-而目标值为56,132,764卢比。
{"title":"VALUASI EKONOMI EKOSISTEM TERUMBU KARANG DI PULAU ENGGANO, KABUPATEN BENGKULU UTARA, PROVINSI BENGKULU","authors":"Zamdial Zamdial, Dede Hartono, Ari Anggoro, Ali Muqsit","doi":"10.31186/jenggano.4.2.160-173","DOIUrl":"https://doi.org/10.31186/jenggano.4.2.160-173","url":null,"abstract":"Pulau Enggano dengan luas ± 400,6 km2 (± 40.600 hektar) adalah sebuah pulau kecil terluar di Provinsi Bengkulu yang terletak di Perairan Barat Sumatera, dan termasuk wilayah Kabupaten Bengkulu Utara. Salah satu sumberdaya alam yang dominan di Pulau Enggano adalah ekosistem terumbu karang yang memberikan manfaat begitu besar bagi kehidupan masyarakat di Pulau Enggano. Penelitian ini bertujuan untuk menghitung valuasi ekonomi ekosistem terumbu karang di Pulau Enggano, untuk kepentingan perencanaan pemanfaatan dan pengelolaan secara berkelanjutan. Penelitian ini dilakukan dengan Metode Survai. Data parameter kualitas air dikumpulkan dengan pengukuran langsung di lokasi penelitian. Data untuk menghitung nilai keberadaan ekosistem terumbu karang dikumpulkan dengan metode wawancara terhadap 180 orang responden yang dipilih secara purposive sampling. Nilai ekonomi total ekosistem terumbu karang dianalisis dan dihitung berdasarkan nilai manfaat langsung, nilai manfaat tidak langsung, nilai manfaat pilihan dan nilai manfaat warisan. Nilai rata-rata parameter perairan di perairan Pulau Enggano secara berturut-turut adalah suhu (29,660C), salinitas (35,06 ‰), kuat arus (2,13 m/s), kecerahan 5,33 m), Oksigen Terlarut/DO (7,39 mg/l), dan pH (7,13). Nilai parameter perairan menunjukkan kondisi perairan yang masih baik dan belum tercemar sehingga dapat mendukung keberadaan dan pertumbuhan ekosistem terumbu karang di Perairan Pulau Enggano. Luas ekosistem terumbu karang di Pulau Enggano ± 5.097 hektar. Nilai manfaat ekonomi total ekosistem terumbu karang adalah Rp. 176.901.038.387,- per tahun, yang terdiri dari nilai manfaat langsung Rp. 561.327.640,- per tahun; nilai manfaat tidak langsung Rp. 46.342.500.000,- per tahun, nilai manfaat pilihan Rp. 2.516.077.983,- , nilai manfaat keberadaan Rp. 127.425.000.000,- per tahun dan nilai warisan Rp. 56.132.764,- per tahun.ECONOMIC VALUATION OF CORAL REEF IN ENGGANO ISLAND, NORTH BENGKULU REGENCY, BENGKULU PROVINCE. Enggano Island with area of ± 400.6 km2 (± 40,600 hectares) is an the outer small island in Bengkulu Province that located in the West Coast of Sumatra, and include of North Bengkulu Regency. One of the dominant natural resources in Enggano Island is a coral reef ecosystem that provides enormous benefits to people's lives in Enggano Island. This study aims to calculate the economic valuation of coral reef ecosystems in Enggano Island, for stake of planning, utilization and sustainable management. This research is done by Survey Method. The data of water quality parameter was collected by direct measurement at the study location. Data to calculate the existence value of coral reef ecosystem was collected by interview method to 180 respondents that chosen by purposive sampling. The total economic value of coral reef ecosystems is analyzed and calculated based on the direct value, indirect value, option value and bequest value. The average values of water parameters in Enggano Island waters are (29,66 oC), sal","PeriodicalId":33425,"journal":{"name":"Jurnal Enggano","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77797579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-09-30DOI: 10.31186/jenggano.4.2.115-127
Abdul Rahman Singkam, Syaiful Rochman, Fitra Youpika
This research aims to analyse the impact of motivation and perception of the society on the quality of education in Enggano island: one of the 111 outermost islands in Indonesia. Despite lacking of supporting facilities is still a main problem of education in Enggano, non-physics (motivation and perception) data are expected to provide alternative solution. Data in this research was collected by using semi-open questionnares to all qualified respondents. 579 quetionnaires in total were fulfilled by six categories of respondents: the students of elementary-, junior- and senior high school, teachers, parents, and the village leaders. Our results show that the motivation of students in Enggano is sufficiently high: 78 out of 100, while the perception of parents and teachers to education is on the medium level: 65 out of 100. The village leaders have graded the quality of education in Enggano on 5.6+0.17 out of 10. Besides of the medium level on perception, a low integrity among the teachers also contributed to the backwardness of eduaction in Enggano.MOTIVATION AND PERCEPTION OF ENGGANO ISLAND COMMUNITIES ON EDUCATION. This research aims to analyse the impact of motivation and perception of the society on the quality of education in Enggano island: one of the 111 outermost islands in Indonesia. Despite lacking of supporting facilities is still a main problem of education in Enggano, non-physics (motivation and perception) data are expected to provide alternative solution. Data in this research was collected by using semi-open questionnares to all qualified respondents. 579 quetionnaires in total were fulfilled by six categories of respondents: the students of elementary-, junior- and senior high school, teachers, parents, and the village leaders. Our results show that the motivation of students in Enggano is sufficiently high: 78 out of 100, while the perception of parents and teachers to education is on the medium level: 65 out of 100. The village leaders have graded the quality of education in Enggano on 5.6+0.17 out of 10. Besides of the medium level on perception, a low integrity among the teachers also contributed to the backwardness of eduaction in Enggano.
{"title":"MOTIVASI DAN PERSEPSI MASYARAKAT PULAU ENGGANO TERHADAP PENDIDIKAN","authors":"Abdul Rahman Singkam, Syaiful Rochman, Fitra Youpika","doi":"10.31186/jenggano.4.2.115-127","DOIUrl":"https://doi.org/10.31186/jenggano.4.2.115-127","url":null,"abstract":"This research aims to analyse the impact of motivation and perception of the society on the quality of education in Enggano island: one of the 111 outermost islands in Indonesia. Despite lacking of supporting facilities is still a main problem of education in Enggano, non-physics (motivation and perception) data are expected to provide alternative solution. Data in this research was collected by using semi-open questionnares to all qualified respondents. 579 quetionnaires in total were fulfilled by six categories of respondents: the students of elementary-, junior- and senior high school, teachers, parents, and the village leaders. Our results show that the motivation of students in Enggano is sufficiently high: 78 out of 100, while the perception of parents and teachers to education is on the medium level: 65 out of 100. The village leaders have graded the quality of education in Enggano on 5.6+0.17 out of 10. Besides of the medium level on perception, a low integrity among the teachers also contributed to the backwardness of eduaction in Enggano.MOTIVATION AND PERCEPTION OF ENGGANO ISLAND COMMUNITIES ON EDUCATION. This research aims to analyse the impact of motivation and perception of the society on the quality of education in Enggano island: one of the 111 outermost islands in Indonesia. Despite lacking of supporting facilities is still a main problem of education in Enggano, non-physics (motivation and perception) data are expected to provide alternative solution. Data in this research was collected by using semi-open questionnares to all qualified respondents. 579 quetionnaires in total were fulfilled by six categories of respondents: the students of elementary-, junior- and senior high school, teachers, parents, and the village leaders. Our results show that the motivation of students in Enggano is sufficiently high: 78 out of 100, while the perception of parents and teachers to education is on the medium level: 65 out of 100. The village leaders have graded the quality of education in Enggano on 5.6+0.17 out of 10. Besides of the medium level on perception, a low integrity among the teachers also contributed to the backwardness of eduaction in Enggano.","PeriodicalId":33425,"journal":{"name":"Jurnal Enggano","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81426075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-09-30DOI: 10.31186/jenggano.4.2.193-207
Nirmala Sari, Okto Supratman, E. Utami
Ikan ekor kuning (Caesio cuning) salah satu jenis ikan karang dari famili Caesionidae, yang menjadi target penangkapan dengan bubu di Pelabuhan Perikanan Nusantara Sungailiat. Ikan ekor kuning memiliki nilai ekonomis penting. Informasi tentang aspek reproduksi ikan ekor kuning (Caesio cuning) diperlukan untuk pengelolaan yang berkelanjutan. Penelitian ini bertujuan untuk mengetahui aspek reproduksi ikan ekor kuning pada bulan Januari sampai Maret yang meliputi Rasio Kelamin (sex ratio), Tingkat Kematangan Gonad (TKG), Indeks Kematangan Gonad (IKG), Fekunditas, dan menganalisis umur ikan. Pengambilan sampel dilakukan pada bulan Januari sampai Maret 2019 di Pelabuhan Perikanan Nusantara Sungailiat dengan menggunakan metode random sampling. Hasil penelitian selama tiga bulan ini menunjukkan bahwa nilai rasio kelamin ikan ekor kuning jantan dan betina yaitu 1:1,032 yang berada pada tingkat kematangan I sampai dengan tingkat kematangan gonad IV. Nilai IKG ikan ekor kuning jantan berkisar antara 0,014% - 4,712% dan untuk betina antara 0,014% - 7,784%. Fekunditas ikan ekor kuning betina berkisar antara 5.523 – 49.987 butir dan memiliki umur 1 tahun dan 2 tahun, dimana panjang tubuh ikan sangat mempengaruhi umur ikan.REPRODUCTIVE ASPECTS AND AGE OF YELLOW-TAILED FISH (Caesio Cuning) LANDED AT SUNGAILIAT ARCHIPELAGO FISHING PORT IN BANGKA REGENCY. Reproductive aspects of yellow-tailed fish which are landed in the Pelabuhan Perikanan Nusantara Sungailiat in Bangka Regency. Yellow-tailed fish (Caesio cuning) is one type of reef fish from the Caesionidae family, which is the target of catching fish at the Pelabuhan Perikanan Nusantara Sungailiat. Yellow tail fish has important economic value. Information about the reproductive aspects of yellow tail fish (Caesio cuning) is needed for sustainable management. This study aims to determine the reproductive aspects of yellow tailed fish from January to March which include sex ratio, gonad maturity level, gonad somatic index, fecundity, and analyze the age of fish. Sampling was carried out from January to March 2019 at the Pelabuhan Perikanan Nusantara Sungailiat used the random sampling method. The results of this three-month study showed that the sex ratio of yellow-tailed fish male and female were 1: 1,032 which at the level of maturity I to the level of gonad maturity IV. The value of GSI male yellow-tailed fish ranges from 0.014% - 4.712% and females between 0.014% - 7.784%. The fecundity of female yellow-tailed fish ranges from 5,523 - 49,987 grains and yellow-tailed fish has age 1 year and 2 years, where the body length of fish greatly affects the age of fish.
{"title":"ASPEK REPRODUKSI DAN UMUR IKAN EKOR KUNING (Caesio cuning) YANG DI DARATKAN DI PELABUHAN PERIKANAN NUSANTARA SUNGAILIAT KABUPATEN BANGKA","authors":"Nirmala Sari, Okto Supratman, E. Utami","doi":"10.31186/jenggano.4.2.193-207","DOIUrl":"https://doi.org/10.31186/jenggano.4.2.193-207","url":null,"abstract":"Ikan ekor kuning (Caesio cuning) salah satu jenis ikan karang dari famili Caesionidae, yang menjadi target penangkapan dengan bubu di Pelabuhan Perikanan Nusantara Sungailiat. Ikan ekor kuning memiliki nilai ekonomis penting. Informasi tentang aspek reproduksi ikan ekor kuning (Caesio cuning) diperlukan untuk pengelolaan yang berkelanjutan. Penelitian ini bertujuan untuk mengetahui aspek reproduksi ikan ekor kuning pada bulan Januari sampai Maret yang meliputi Rasio Kelamin (sex ratio), Tingkat Kematangan Gonad (TKG), Indeks Kematangan Gonad (IKG), Fekunditas, dan menganalisis umur ikan. Pengambilan sampel dilakukan pada bulan Januari sampai Maret 2019 di Pelabuhan Perikanan Nusantara Sungailiat dengan menggunakan metode random sampling. Hasil penelitian selama tiga bulan ini menunjukkan bahwa nilai rasio kelamin ikan ekor kuning jantan dan betina yaitu 1:1,032 yang berada pada tingkat kematangan I sampai dengan tingkat kematangan gonad IV. Nilai IKG ikan ekor kuning jantan berkisar antara 0,014% - 4,712% dan untuk betina antara 0,014% - 7,784%. Fekunditas ikan ekor kuning betina berkisar antara 5.523 – 49.987 butir dan memiliki umur 1 tahun dan 2 tahun, dimana panjang tubuh ikan sangat mempengaruhi umur ikan.REPRODUCTIVE ASPECTS AND AGE OF YELLOW-TAILED FISH (Caesio Cuning) LANDED AT SUNGAILIAT ARCHIPELAGO FISHING PORT IN BANGKA REGENCY. Reproductive aspects of yellow-tailed fish which are landed in the Pelabuhan Perikanan Nusantara Sungailiat in Bangka Regency. Yellow-tailed fish (Caesio cuning) is one type of reef fish from the Caesionidae family, which is the target of catching fish at the Pelabuhan Perikanan Nusantara Sungailiat. Yellow tail fish has important economic value. Information about the reproductive aspects of yellow tail fish (Caesio cuning) is needed for sustainable management. This study aims to determine the reproductive aspects of yellow tailed fish from January to March which include sex ratio, gonad maturity level, gonad somatic index, fecundity, and analyze the age of fish. Sampling was carried out from January to March 2019 at the Pelabuhan Perikanan Nusantara Sungailiat used the random sampling method. The results of this three-month study showed that the sex ratio of yellow-tailed fish male and female were 1: 1,032 which at the level of maturity I to the level of gonad maturity IV. The value of GSI male yellow-tailed fish ranges from 0.014% - 4.712% and females between 0.014% - 7.784%. The fecundity of female yellow-tailed fish ranges from 5,523 - 49,987 grains and yellow-tailed fish has age 1 year and 2 years, where the body length of fish greatly affects the age of fish.","PeriodicalId":33425,"journal":{"name":"Jurnal Enggano","volume":"431 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77035910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pengembangan wisata mangrove memerlukan kesesuaian sumberdaya dan lingkungan yang sesuai dengan yang disyaratkan. Kesesuaian karakteristik sumber daya dan lingkungan untuk pengembangan wisata dilihat dari aspek keindahan alam, keamanan dan keterlindungan kawasan, keanekaragaman biota, keunikan sumber daya dan aksesibilitas. Tujuan penelitian yaitu menghitung indeks kesesuaian kawasan untuk pengembangan ekowisata mangrove, menghitung daya dukung kawasan dan mengidentifikasi jenis kegiatan wisata yang dapat dilakukan dalam kawasan mangrove. Metode yang digunakan adalah metode survei yaitu pengukuran secara langsung untuk mengetahui kondisi biofisik mangrove. Hasil analisis Indeks Kesesuaian Wisata (IKW) baik stasiun i, stasiun 2 dan stasiun 3 maupun secara keseluruhan menunjukkan kawasan hutan mangrove di Desa Tuada Kecamatan Jailolo berada pada kategori S1 (sangat sesuai). Jumlah Daya Dukung Kawasan (DDK) untuk kegiatan tracking adalah 34 orang/hari, kegiatan piknik sebanyak 56 orang/hari dan kegiatan camping sebanyak 13 orang. Total daya dukung kawasan wisata mangrove Desa Tuada adalah 102 orang/hari. Aktivitas kegiatan ekowisata mangrove Desa Tuada setiap hari dibuka mulai jam 06.00 – 18.00 WIT. Namun kunjungan wisata lebih banyak pada hari sabtu dan minggu. Tenaga kerja merupakan masyarakat lokal Desa Tuada. Aktivitas wisata yang direkomendasikan terdiri dari Tracking, berperahu, memancing, bird watching dan berenang (10%). Sedangkan fasilitasi wisata yang direkomendasikan berupa Waserda, penginapan, tempat ibadah dan tempat sampah.STUDY OF CONFORMITY, CARRIYING CAPACITY, AND ECOTOURISM ACTIVITIES IN THE MANGROVE AREA OF TUADA VILLAGE, JAILOLO DISTRICT, WEST HALMAHERA REGENCY. Development of mangrove tourism requires the suitability of resources and environment that are in accordance with what is required. Conformity of resource and environmental characteristics for tourism development is seen from aspects of natural beauty, regional security and protection, biota diversity, uniqueness of resources and accessibility. The research objective is to calculate the regional suitability index for the development of mangrove ecotourism, calculate the carrying capacity of the area and identify the types of tourism activities that can be carried out in the mangrove area. The method used is the survey method that is direct measurement to determine the mangrove biophysical conditions. The results of the Tourism Conformity Index (IKW) analysis of Station I, Station 2 and Station 3 as well as overall show that the mangrove forest in Tuada Village, Jailolo District is in the S1 category (very suitable). The amount of Regional Carrying Capacity (DDK) for tracking activities is 34 people / day, picnic activities as many as 56 people / day and camping activities as many as 13 people. The total carrying capacity of the mangrove tourism area in Tuada Village is 102 people / day. Mangrove ecotourism activities in Tuada Village are open daily from 06.00 - 18.00 WIT
{"title":"KAJIAN KESESUAIAN, DAYA DUKUNG, DAN AKTIVITAS EKOWISATA DI KAWASAN MANGROVE DESA TUADA KECAMATAN JAILOLO KABUPATEN HALMAHERA BARAT","authors":"Salim Abubakar, Riyadi Subur, Darmawaty Darmawaty, Nebuchadnezzar Akbar, Irmalita Tahir","doi":"10.31186/jenggano.4.2.222-242","DOIUrl":"https://doi.org/10.31186/jenggano.4.2.222-242","url":null,"abstract":"Pengembangan wisata mangrove memerlukan kesesuaian sumberdaya dan lingkungan yang sesuai dengan yang disyaratkan. Kesesuaian karakteristik sumber daya dan lingkungan untuk pengembangan wisata dilihat dari aspek keindahan alam, keamanan dan keterlindungan kawasan, keanekaragaman biota, keunikan sumber daya dan aksesibilitas. Tujuan penelitian yaitu menghitung indeks kesesuaian kawasan untuk pengembangan ekowisata mangrove, menghitung daya dukung kawasan dan mengidentifikasi jenis kegiatan wisata yang dapat dilakukan dalam kawasan mangrove. Metode yang digunakan adalah metode survei yaitu pengukuran secara langsung untuk mengetahui kondisi biofisik mangrove. Hasil analisis Indeks Kesesuaian Wisata (IKW) baik stasiun i, stasiun 2 dan stasiun 3 maupun secara keseluruhan menunjukkan kawasan hutan mangrove di Desa Tuada Kecamatan Jailolo berada pada kategori S1 (sangat sesuai). Jumlah Daya Dukung Kawasan (DDK) untuk kegiatan tracking adalah 34 orang/hari, kegiatan piknik sebanyak 56 orang/hari dan kegiatan camping sebanyak 13 orang. Total daya dukung kawasan wisata mangrove Desa Tuada adalah 102 orang/hari. Aktivitas kegiatan ekowisata mangrove Desa Tuada setiap hari dibuka mulai jam 06.00 – 18.00 WIT. Namun kunjungan wisata lebih banyak pada hari sabtu dan minggu. Tenaga kerja merupakan masyarakat lokal Desa Tuada. Aktivitas wisata yang direkomendasikan terdiri dari Tracking, berperahu, memancing, bird watching dan berenang (10%). Sedangkan fasilitasi wisata yang direkomendasikan berupa Waserda, penginapan, tempat ibadah dan tempat sampah.STUDY OF CONFORMITY, CARRIYING CAPACITY, AND ECOTOURISM ACTIVITIES IN THE MANGROVE AREA OF TUADA VILLAGE, JAILOLO DISTRICT, WEST HALMAHERA REGENCY. Development of mangrove tourism requires the suitability of resources and environment that are in accordance with what is required. Conformity of resource and environmental characteristics for tourism development is seen from aspects of natural beauty, regional security and protection, biota diversity, uniqueness of resources and accessibility. The research objective is to calculate the regional suitability index for the development of mangrove ecotourism, calculate the carrying capacity of the area and identify the types of tourism activities that can be carried out in the mangrove area. The method used is the survey method that is direct measurement to determine the mangrove biophysical conditions. The results of the Tourism Conformity Index (IKW) analysis of Station I, Station 2 and Station 3 as well as overall show that the mangrove forest in Tuada Village, Jailolo District is in the S1 category (very suitable). The amount of Regional Carrying Capacity (DDK) for tracking activities is 34 people / day, picnic activities as many as 56 people / day and camping activities as many as 13 people. The total carrying capacity of the mangrove tourism area in Tuada Village is 102 people / day. Mangrove ecotourism activities in Tuada Village are open daily from 06.00 - 18.00 WIT","PeriodicalId":33425,"journal":{"name":"Jurnal Enggano","volume":"157 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79936988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-09-30DOI: 10.31186/jenggano.4.2.128-135
Eldita Amalia, Rini Pramesti, R. Pribadi, W. A. Setyati
Mangrove merupakan varietas komunitas pantai tropik dan subtropik yang mampu beradaptasi dengan salinitas tertentu. Jenis Avicennia marina dan Rhizophora mucronata merupakan tegakan alami dan hasil rehabilitasi. Kegiatan konservasi di lokasi ini belum dikelola baik sehingga struktur dan komposisi bervariasi. Hal ini dapat diatasi yang salah satunya dengan herbivori sebagai parameter tingkat kerusakan ekosistem mangrove. Daun merupakan salah satu bagian tumbuhan yang mengalami perubahan bentuk karena pemangsaan. Tujuan penelitian ini untuk mengetahui tingkat herbivori daun A.marina dan R. mucronata berdasarkan perbedaan spesies, umur daun dan ketinggian pohon. Metode deskriptif digunakan dalam penelitin ini dan penentuan lokasi pengambilan sampel dengan metode purposive sampling. Sampel daun diambil dari tiga kategori ketinggian yang berbeda yaitu <1 m, >1-3 m, >3-5 m, masing-masing sebanyak 10 ulangan (pohon) untuk setiap kategori. Daun dipisahkan berdasarkan umur daun (tua atau muda) dan kondisi daun (utuh atau rusak) dan total daun diambil sebanyak 10%. Hasil penelitian menunjukan nilai rerata pada setiap jenis, umur daun dan ketinggian pohon diperoleh tingkat herbivori A. marina yaitu 4,66% (0,16% - 8,93%) sampai 11,59% (2,14% - 21,97%) sedangkan R. mucronata yaitu 5,23% (0,31% - 9,94%) sampai 12,44% (3,50% - 23,81%).HERBIVORY LEVEL OF MANGROVE LEAVES Avicennia marina (FORSSK.) VIERH AND Rhizophora mucronata IN MANGROVE VEGETATION - TIMBULSLOKO, DEMAK. Mangroves are variety of tropical and subtropical coastal communities that adapt to certain salinity. Avicennia marina and Rhizophora mucronata were found in location. Conservation activities were not managed so the structure and composition varies. This can be overcome one of them with herbivory as a parameter of the level damage to mangrove ecosystems. The leaves are one part of the plant that changes shape due to predation. The purpose of this study was to determine herbivory level of A.marina and R. mucronata leaves based on differences in species, leaf of age and tree of height. Descriptive method is used in this study and the determination of the location sampling with the purposive sampling method. Leaf samples were taken from three different height categories namely <1 m,> 1-3 m,> 3-5 m, each with 10 replications (trees) for each category. The leaves are separated based on the age of the leaves (old or young) and the condition of the leaves (whole or damaged) total leaves taken as much as 10%. The results showed the average value of each species, leaf age and height of the tree obtained A. marina herbivory level of 4.66% range (0.16% - 8.93%) to 11.59% range (2.14% - 21.97%) while R. mucronata is 5.23% range (0.31% - 9.94%) to 12.44% range (3.50% - 23.81%).
{"title":"TINGKAT HERBIVORI DAUN Avicennia marina (FORSSK.) VIERH DAN Rhizophora mucronata DI VEGETASI MANGROVE – TIMBULSLOKO, DEMAK","authors":"Eldita Amalia, Rini Pramesti, R. Pribadi, W. A. Setyati","doi":"10.31186/jenggano.4.2.128-135","DOIUrl":"https://doi.org/10.31186/jenggano.4.2.128-135","url":null,"abstract":"Mangrove merupakan varietas komunitas pantai tropik dan subtropik yang mampu beradaptasi dengan salinitas tertentu. Jenis Avicennia marina dan Rhizophora mucronata merupakan tegakan alami dan hasil rehabilitasi. Kegiatan konservasi di lokasi ini belum dikelola baik sehingga struktur dan komposisi bervariasi. Hal ini dapat diatasi yang salah satunya dengan herbivori sebagai parameter tingkat kerusakan ekosistem mangrove. Daun merupakan salah satu bagian tumbuhan yang mengalami perubahan bentuk karena pemangsaan. Tujuan penelitian ini untuk mengetahui tingkat herbivori daun A.marina dan R. mucronata berdasarkan perbedaan spesies, umur daun dan ketinggian pohon. Metode deskriptif digunakan dalam penelitin ini dan penentuan lokasi pengambilan sampel dengan metode purposive sampling. Sampel daun diambil dari tiga kategori ketinggian yang berbeda yaitu <1 m, >1-3 m, >3-5 m, masing-masing sebanyak 10 ulangan (pohon) untuk setiap kategori. Daun dipisahkan berdasarkan umur daun (tua atau muda) dan kondisi daun (utuh atau rusak) dan total daun diambil sebanyak 10%. Hasil penelitian menunjukan nilai rerata pada setiap jenis, umur daun dan ketinggian pohon diperoleh tingkat herbivori A. marina yaitu 4,66% (0,16% - 8,93%) sampai 11,59% (2,14% - 21,97%) sedangkan R. mucronata yaitu 5,23% (0,31% - 9,94%) sampai 12,44% (3,50% - 23,81%).HERBIVORY LEVEL OF MANGROVE LEAVES Avicennia marina (FORSSK.) VIERH AND Rhizophora mucronata IN MANGROVE VEGETATION - TIMBULSLOKO, DEMAK. Mangroves are variety of tropical and subtropical coastal communities that adapt to certain salinity. Avicennia marina and Rhizophora mucronata were found in location. Conservation activities were not managed so the structure and composition varies. This can be overcome one of them with herbivory as a parameter of the level damage to mangrove ecosystems. The leaves are one part of the plant that changes shape due to predation. The purpose of this study was to determine herbivory level of A.marina and R. mucronata leaves based on differences in species, leaf of age and tree of height. Descriptive method is used in this study and the determination of the location sampling with the purposive sampling method. Leaf samples were taken from three different height categories namely <1 m,> 1-3 m,> 3-5 m, each with 10 replications (trees) for each category. The leaves are separated based on the age of the leaves (old or young) and the condition of the leaves (whole or damaged) total leaves taken as much as 10%. The results showed the average value of each species, leaf age and height of the tree obtained A. marina herbivory level of 4.66% range (0.16% - 8.93%) to 11.59% range (2.14% - 21.97%) while R. mucronata is 5.23% range (0.31% - 9.94%) to 12.44% range (3.50% - 23.81%).","PeriodicalId":33425,"journal":{"name":"Jurnal Enggano","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77763038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-09-30DOI: 10.31186/jenggano.4.2.208-221
Ucu Yanu Arbi, H. A. Cappenberg, Yaya Ihya Ulumuddin, Mujizat Kawaroe, R. M. Marwoto
Terletak di sekitar Selat Madura, Kabupaten dan Kota Probolinggo merupakan habitat dari vegetasi mangrove, tetapi keberadaan hutan mangrove di lokasi ini sebagian besar telah dikonversi menjadi areal pertambakan. Vegetasi mangrove yang tersisa tumbuh hanya di pematang tambak dan di sekitar bagian pantai. Potamididae merupakan satu-satunya famili dari gastropoda dimana semua anggotanya hanya dapat ditemukan berasosiasi dengan vegetasi mangrove. Tujuan dari penelitian ini adalah untuk mengetahui komposisi spesies keong Potamididae di areal pertambakan Probolinggo. Penelitian dilakukan pada bulan Februari dan April 2013 menggunakan metode Purposive Random Sampling di tujuh stasiun penelitian. Identifikasi spesies keong Potamididae dilakukan terutama berdasarkan karakter morfologi cangkang. Hasil penelitian menunjukkan bahwa delapan spesies keong Famili Potamididae ditemukan pada lokasi ini. Keberadaan vegetasi mangrove, jarak terdekat dengan garis pantai, suhu, salinitas dan pola arus serta pasang surut air laut dicatat sebagai faktor pendukung pertumbuhan dan perkembangan keong di lokasi penelitian. Hasil dari penelitian ini diharapkan dapat membuka peluang penelitian selanjutnya untuk mengetahui peran dan pengaruh keong Potamididae bagi kesehatan ekosistem habitat mangrove di area pertambakan.COMPOSITION OF POTAMIDID SNAILS IN THE MANGROVE ECOSYSTEM OF PROBOLINGGO POND AREA, EAST JAVA. Located around Madura Strait, Probolinggo City and Regency is a home for mangrove vegetation, but the mangrove forest in this are mostly has been converted into aquaculture ponds. The mangrove relic grows in the pond embankment and the narrow strip along the seaside. Potamididae is the only family of gastropods in which all members can only found associated with mangrove vegetation. The aim of this research was to determine species composition of potamidid snails in the pond environment of Probolinggo. The research was conducted in February and April 2013 using Purposive Random Sampling method in seven sampling stations. The species identification of the snails was based primarily on morphological shell characters. The results showed that eight species of Family Potamididae were found at the sites. The presence of mangrove trees, the distance to nearest coastline, temperature, salinity, and the pattern of ocean current and tide seemed to support the snails to grow and thrive in the study sites. The results of this study are expected to open up opportunities for further research to determine the role and influence of potamidid snails on the ecosystem health of mangrove habitat in the pond environment.
{"title":"KOMPOSISI JENIS KEONG POTAMIDIDAE DI EKOSISTEM MANGROVE KAWASAN PERTAMBAKAN PROBOLINGGO JAWA TIMUR","authors":"Ucu Yanu Arbi, H. A. Cappenberg, Yaya Ihya Ulumuddin, Mujizat Kawaroe, R. M. Marwoto","doi":"10.31186/jenggano.4.2.208-221","DOIUrl":"https://doi.org/10.31186/jenggano.4.2.208-221","url":null,"abstract":"Terletak di sekitar Selat Madura, Kabupaten dan Kota Probolinggo merupakan habitat dari vegetasi mangrove, tetapi keberadaan hutan mangrove di lokasi ini sebagian besar telah dikonversi menjadi areal pertambakan. Vegetasi mangrove yang tersisa tumbuh hanya di pematang tambak dan di sekitar bagian pantai. Potamididae merupakan satu-satunya famili dari gastropoda dimana semua anggotanya hanya dapat ditemukan berasosiasi dengan vegetasi mangrove. Tujuan dari penelitian ini adalah untuk mengetahui komposisi spesies keong Potamididae di areal pertambakan Probolinggo. Penelitian dilakukan pada bulan Februari dan April 2013 menggunakan metode Purposive Random Sampling di tujuh stasiun penelitian. Identifikasi spesies keong Potamididae dilakukan terutama berdasarkan karakter morfologi cangkang. Hasil penelitian menunjukkan bahwa delapan spesies keong Famili Potamididae ditemukan pada lokasi ini. Keberadaan vegetasi mangrove, jarak terdekat dengan garis pantai, suhu, salinitas dan pola arus serta pasang surut air laut dicatat sebagai faktor pendukung pertumbuhan dan perkembangan keong di lokasi penelitian. Hasil dari penelitian ini diharapkan dapat membuka peluang penelitian selanjutnya untuk mengetahui peran dan pengaruh keong Potamididae bagi kesehatan ekosistem habitat mangrove di area pertambakan.COMPOSITION OF POTAMIDID SNAILS IN THE MANGROVE ECOSYSTEM OF PROBOLINGGO POND AREA, EAST JAVA. Located around Madura Strait, Probolinggo City and Regency is a home for mangrove vegetation, but the mangrove forest in this are mostly has been converted into aquaculture ponds. The mangrove relic grows in the pond embankment and the narrow strip along the seaside. Potamididae is the only family of gastropods in which all members can only found associated with mangrove vegetation. The aim of this research was to determine species composition of potamidid snails in the pond environment of Probolinggo. The research was conducted in February and April 2013 using Purposive Random Sampling method in seven sampling stations. The species identification of the snails was based primarily on morphological shell characters. The results showed that eight species of Family Potamididae were found at the sites. The presence of mangrove trees, the distance to nearest coastline, temperature, salinity, and the pattern of ocean current and tide seemed to support the snails to grow and thrive in the study sites. The results of this study are expected to open up opportunities for further research to determine the role and influence of potamidid snails on the ecosystem health of mangrove habitat in the pond environment.","PeriodicalId":33425,"journal":{"name":"Jurnal Enggano","volume":"106 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85753899","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-09-30DOI: 10.31186/jenggano.4.2.136-147
Bertoka Fajar Sp Negara, Nining Nursalim, N. E. Herliany, Person Pesona Renta, Dewi Purnama, M. A. F. Utami
Bahan bakar fosil merupakan bahan bakar yang berasal dari pelapukan sisa mahluk hidup. Bahan bakar fosil bersifat tidak terbaharukan, maka pencarian bahan bakar alternatif yang terbarukan perlu dilakukan salah satunya bioetanol. Tetraselmis chuii dapat dijadikan bahan baku pembuatan bioetanol. Tujuan dari penelitian ini adalah untuk mengetahui volume bioetanol yang dihasilkan dari Fermentasi Tetraselmis chuii. Kultur Tetraselmis chuii selama 6 hari. Hidrolisis dilakukan dengan menambahkan H2SO4 0,2 M pada suhu 121oC dengan tekanan 1 atm selama 30 menit, Fermentasi dengan Saccharomyces cereviseae selama 5 hari. Penelitian ini menghasilkan gula reduksi Tetraselmis chuii dengan kadar gula 4% dan hasil fermentasi Tetraselmis chuii menghasilkan 12 ml etanol dengan konsentrasi 1%.THE ROLE AND UTILIZATION OF MICROALGAE Tetraselmis chuii AS BIOETHANOL. Fossil fuels are the fuel produced from the weathering of living things. Fossil fuels are non-renewable, therefore the research of renewable energy is needed. Bioethanol could be good solution. Tetraselmis chuii can be used as the raw material for bioethanol. The purpose of this study was to determine the volume of ethanol through fermentation of Tetraselmis chuii. Tetraselmis chuii was cultured for 6 days. The hydrolysis used 0.2 M H2SO4 at 1210C and pressure of 1 atm for 30 minutes, and the fermentation used Sacscharomyces cereviseae for 5 days. The results showed that Tetraselmis chuii produced 4% sugar and The fermentation produced 1% bioethanol with volume was 12 ml.
{"title":"PERANAN DAN PEMANFAATAN MIKROALGA Tetraselmis chuii SEBAGAI BIOETANOL","authors":"Bertoka Fajar Sp Negara, Nining Nursalim, N. E. Herliany, Person Pesona Renta, Dewi Purnama, M. A. F. Utami","doi":"10.31186/jenggano.4.2.136-147","DOIUrl":"https://doi.org/10.31186/jenggano.4.2.136-147","url":null,"abstract":"Bahan bakar fosil merupakan bahan bakar yang berasal dari pelapukan sisa mahluk hidup. Bahan bakar fosil bersifat tidak terbaharukan, maka pencarian bahan bakar alternatif yang terbarukan perlu dilakukan salah satunya bioetanol. Tetraselmis chuii dapat dijadikan bahan baku pembuatan bioetanol. Tujuan dari penelitian ini adalah untuk mengetahui volume bioetanol yang dihasilkan dari Fermentasi Tetraselmis chuii. Kultur Tetraselmis chuii selama 6 hari. Hidrolisis dilakukan dengan menambahkan H2SO4 0,2 M pada suhu 121oC dengan tekanan 1 atm selama 30 menit, Fermentasi dengan Saccharomyces cereviseae selama 5 hari. Penelitian ini menghasilkan gula reduksi Tetraselmis chuii dengan kadar gula 4% dan hasil fermentasi Tetraselmis chuii menghasilkan 12 ml etanol dengan konsentrasi 1%.THE ROLE AND UTILIZATION OF MICROALGAE Tetraselmis chuii AS BIOETHANOL. Fossil fuels are the fuel produced from the weathering of living things. Fossil fuels are non-renewable, therefore the research of renewable energy is needed. Bioethanol could be good solution. Tetraselmis chuii can be used as the raw material for bioethanol. The purpose of this study was to determine the volume of ethanol through fermentation of Tetraselmis chuii. Tetraselmis chuii was cultured for 6 days. The hydrolysis used 0.2 M H2SO4 at 1210C and pressure of 1 atm for 30 minutes, and the fermentation used Sacscharomyces cereviseae for 5 days. The results showed that Tetraselmis chuii produced 4% sugar and The fermentation produced 1% bioethanol with volume was 12 ml.","PeriodicalId":33425,"journal":{"name":"Jurnal Enggano","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88601184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-09-30DOI: 10.31186/jenggano.4.2.148-159
Wahyu Adi, A. Nugraha, Y. H. Dasmasela, Agus Ramli, C. Sondak, Nurul Dhewani Mirah Sjafrie
Padang lamun menyediakan banyak manfaat. Diperlukan penilaian tutupan lamun dan distribusi spasial spesies lamun, untuk memastikan manfaat dari padang lamun tetap ada. Penelitian ini dilakukan dengan metode kuadran disepanjang line transect, dan analisis data dilakukan untuk dapat menyajikan informasi tentang titik koordinat transek garis, persen tutupan lamun, persen tutupan spesies lamun, jenis substrat (pasir, lumpur dan pecahan karang), jumlah spesies Enhallus acoroides (tegakan/m2) dan distribusi spasial spesies lamun. Hasil penelitian menunjukkan kondisi padang lamun di wilayah studi sebagai kategori tutupan padat. Spesies lamun Thalassia hemprichii (Th) dan Enhalus acoroides (Ea) adalah spesies dominan dan menyebar ke seluruh wilayah penelitian.COMMUNITY STRUCTURE OF SEAGRASS IN MALANG RAPAT, BINTAN. Seagrass beds provide many benefits. Assessment of seagrass cover and spatial distribution of seagrass species is needed, to ensure the benefits of seagrass beds remain. The study was conducted using the quadratic method on the line transect, and the analysis was carried out to be able to present information about line transect coordinate points, percent cover of seagrass, percent cover of seagrass species, substrate type (sand, mud and rubble), number of species of Enhallus acoroides (shoot/m2) and spatial distribution of seagrass species. The results showed the condition of seagrass beds in the study area as a category of solid cover. Seagrass species Thalassia hemprichii (Th) and Enhalus acoroides (Ea) are dominant species and spread throughout the study area.
海草有很多好处。需要对海葵凝块的评估和海草物种的空间分布，以确保海草田的好处。这项研究采用了多孔线下象限的方法，并进行了数据分析，以提供有关横膈膜坐标的信息，百分之一的海门海葵，百分之一的海门海葵，次级海葵(沙、泥和珊瑚碎片)、肠状结节(三分之二)和海门物种的数量和空间分布的数据。研究结果显示，研究区域的海草群处于高密度肿瘤。海草是一种主要物种，分布在所有研究区域。贫穷海草的社区结构，宾坦。海草提供许多福利。海草覆盖和空间分配需要确定海草物种的好处。The study was conducted用《transect quadratic方法》系列,与分析是carried out to be able to呈现资讯网关于坐标线transect分,简直百分之拉梅尔的封面,封面的乌拉(沙,泥浆和碎石型物种,substrate)的物种,当家》Enhallus acoroides(拍/ m2)和空间distribution of乌拉物种。结果表明，研究区域内海草的痕迹被认为是一个坚实的封面。红斑菌是支配物种，并通过研究区域传播。
{"title":"STRUKTUR KOMUNITAS LAMUN DI MALANG RAPAT, BINTAN","authors":"Wahyu Adi, A. Nugraha, Y. H. Dasmasela, Agus Ramli, C. Sondak, Nurul Dhewani Mirah Sjafrie","doi":"10.31186/jenggano.4.2.148-159","DOIUrl":"https://doi.org/10.31186/jenggano.4.2.148-159","url":null,"abstract":"Padang lamun menyediakan banyak manfaat. Diperlukan penilaian tutupan lamun dan distribusi spasial spesies lamun, untuk memastikan manfaat dari padang lamun tetap ada. Penelitian ini dilakukan dengan metode kuadran disepanjang line transect, dan analisis data dilakukan untuk dapat menyajikan informasi tentang titik koordinat transek garis, persen tutupan lamun, persen tutupan spesies lamun, jenis substrat (pasir, lumpur dan pecahan karang), jumlah spesies Enhallus acoroides (tegakan/m2) dan distribusi spasial spesies lamun. Hasil penelitian menunjukkan kondisi padang lamun di wilayah studi sebagai kategori tutupan padat. Spesies lamun Thalassia hemprichii (Th) dan Enhalus acoroides (Ea) adalah spesies dominan dan menyebar ke seluruh wilayah penelitian.COMMUNITY STRUCTURE OF SEAGRASS IN MALANG RAPAT, BINTAN. Seagrass beds provide many benefits. Assessment of seagrass cover and spatial distribution of seagrass species is needed, to ensure the benefits of seagrass beds remain. The study was conducted using the quadratic method on the line transect, and the analysis was carried out to be able to present information about line transect coordinate points, percent cover of seagrass, percent cover of seagrass species, substrate type (sand, mud and rubble), number of species of Enhallus acoroides (shoot/m2) and spatial distribution of seagrass species. The results showed the condition of seagrass beds in the study area as a category of solid cover. Seagrass species Thalassia hemprichii (Th) and Enhalus acoroides (Ea) are dominant species and spread throughout the study area.","PeriodicalId":33425,"journal":{"name":"Jurnal Enggano","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83302226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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