This study aims to determine the marketing mix strategy for Eucheuma cottoni seaweed in Mandalle District, Pangkep Regency. This seaweed is one of the main commodities of Pangkep Regency from the fisheries sector. The main obstacles faced by seaweed cultivators are marketing and price stability. This research is important as information material for cultivators, entrepreneurs and the government in pursuing this business. The research was conducted from December to February 2023, in Mandalle District, Pangkep Regency. The study population consisted of all 207 Euchuma cottoni cultivators. Determination of the number of samples using the slovin formula with the number of samples selected 70 people. To find out which cultivators were sampled, a simple random sampling technique was used. Data collection was carried out using interviews, observation, questionnaires, and focus group discussions. Data analysis using SWOT analysis. The results showed that the new marketing of Euchuma cottoni seaweed in Mandalle sub-district, namely: continuing to provide seeds at affordable prices and providing counseling in stages, optimizing seaweed production, increasing the potential of seaweed already exist, provide training in stages, expand, and maintain marketing networks, increase product selling prices and access to capital.
{"title":"Strategi Bauran Pemasaran Rumput Laut Eucheuma cottoni di Kecamatan Mandalle Kabupaten Pangkep","authors":"H. Herlinawati, Muhammad Bibin, Damis Damis","doi":"10.31957/acr.v6i1.2989","DOIUrl":"https://doi.org/10.31957/acr.v6i1.2989","url":null,"abstract":"This study aims to determine the marketing mix strategy for Eucheuma cottoni seaweed in Mandalle District, Pangkep Regency. This seaweed is one of the main commodities of Pangkep Regency from the fisheries sector. The main obstacles faced by seaweed cultivators are marketing and price stability. This research is important as information material for cultivators, entrepreneurs and the government in pursuing this business. The research was conducted from December to February 2023, in Mandalle District, Pangkep Regency. The study population consisted of all 207 Euchuma cottoni cultivators. Determination of the number of samples using the slovin formula with the number of samples selected 70 people. To find out which cultivators were sampled, a simple random sampling technique was used. Data collection was carried out using interviews, observation, questionnaires, and focus group discussions. Data analysis using SWOT analysis. The results showed that the new marketing of Euchuma cottoni seaweed in Mandalle sub-district, namely: continuing to provide seeds at affordable prices and providing counseling in stages, optimizing seaweed production, increasing the potential of seaweed already exist, provide training in stages, expand, and maintain marketing networks, increase product selling prices and access to capital.","PeriodicalId":179620,"journal":{"name":"ACROPORA: Jurnal Ilmu Kelautan dan Perikanan Papua","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130188295","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}
Nuralim Pasisingi, Tiara Septiani Lawadjo, Ivana Butolo
Togean Islands in Central Sulawesi, Indonesia, are famous for their tourist areas, rich in natural resource potential, and underwater attractions. Octopus is a high economic value aquatic biota in Togean Islands. This research aimed to determine the Octopus species in Togean Islands, Tojo Una-una Regency, based on their body morphology. Identification was made by noticing external characteristics, including the shape of mantles, arms, color, and hectocotylus. Observations on the morphology of octopuses found in the Togean Islands have many similarities to the characteristics of the species Octopus cyanea. In males, an organ called the hectocotylus is presented at the third arm on the right side of the body. This organ is not found in female octopuses.
{"title":"Identifikasi Morfologi Gurita di Perairan Kepulauan Togean Kabupaten Tojo Una-una, Sulawesi Tengah","authors":"Nuralim Pasisingi, Tiara Septiani Lawadjo, Ivana Butolo","doi":"10.31957/acr.v6i1.2903","DOIUrl":"https://doi.org/10.31957/acr.v6i1.2903","url":null,"abstract":"Togean Islands in Central Sulawesi, Indonesia, are famous for their tourist areas, rich in natural resource potential, and underwater attractions. Octopus is a high economic value aquatic biota in Togean Islands. This research aimed to determine the Octopus species in Togean Islands, Tojo Una-una Regency, based on their body morphology. Identification was made by noticing external characteristics, including the shape of mantles, arms, color, and hectocotylus. Observations on the morphology of octopuses found in the Togean Islands have many similarities to the characteristics of the species Octopus cyanea. In males, an organ called the hectocotylus is presented at the third arm on the right side of the body. This organ is not found in female octopuses.","PeriodicalId":179620,"journal":{"name":"ACROPORA: Jurnal Ilmu Kelautan dan Perikanan Papua","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117257259","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}
Tasya M.R. Sihabudin, Vera Sabariah, A. H. A. Toha, Yuli E. Demana
Seagrasses and sea cucumbers have a close relationship in determining ecological functions. The purpose of this study was to investigate the relationship between seagrass density and sea cucumber abundance on Meosmangguandi Island, Biak. The research was conducted in August-September 2021 at two stations. The location was chosen purposively on the East side (Station I, conservation location) and the West side (Station II, around residential areas and fishing activities). The 5m line transect method (2.5m to the right and 2.5m to the left) is used to reach the destination. The study found 6 species of seagrass namely C. rotundata, T. hemprichii, E. acoroides, H. pinifolia, H. ovalis and Syringodium isoetifolium, and 9 species of sea cucumbers namely Actinopyga lecanora, A. miliaris, A. mauritiana, Bohadschia similis, Holothuria atra, H. coluber, H. scabra, H. albiventer, and teripang malam. Percentage of seagrass cover at Station I was 85.51% and Station II was 57.71%, with a relative density of seagrass C. rotundata 39.10% and T. hemprichii 27.09%. The relationship between the density of seagrass C. rotundata and the abundance of sea cucumbers A. lecanora 4.285 > X2 (1:0.05); T. hemprichii with A. mauritiana 6.887> X2 (1;0.05); seagrass C. rotundata with A. miliaris 4.285 > X2 (1:0.05); A. miliaris with seagrass H. pinifolia 7.048 > X2 (1:0.05); density of seagrass T. hemprichii with abundance of sea cucumber B. similis: 5.274 > X2 (1:0.05); H. atra 5 > X2 (1:0.05); and H. coluber 5.172 > X2 (1:0.05), indicating an association between seagrass density and sea cucumber abundance.
{"title":"Hubungan Kerapatan Lamun dan Kelimpahan Teripang (Holothuroidea) di Pulau Meosmangguandi Taman Wisata Perairan Padaido-Biak","authors":"Tasya M.R. Sihabudin, Vera Sabariah, A. H. A. Toha, Yuli E. Demana","doi":"10.31957/acr.v6i1.2910","DOIUrl":"https://doi.org/10.31957/acr.v6i1.2910","url":null,"abstract":"Seagrasses and sea cucumbers have a close relationship in determining ecological functions. The purpose of this study was to investigate the relationship between seagrass density and sea cucumber abundance on Meosmangguandi Island, Biak. The research was conducted in August-September 2021 at two stations. The location was chosen purposively on the East side (Station I, conservation location) and the West side (Station II, around residential areas and fishing activities). The 5m line transect method (2.5m to the right and 2.5m to the left) is used to reach the destination. The study found 6 species of seagrass namely C. rotundata, T. hemprichii, E. acoroides, H. pinifolia, H. ovalis and Syringodium isoetifolium, and 9 species of sea cucumbers namely Actinopyga lecanora, A. miliaris, A. mauritiana, Bohadschia similis, Holothuria atra, H. coluber, H. scabra, H. albiventer, and teripang malam. Percentage of seagrass cover at Station I was 85.51% and Station II was 57.71%, with a relative density of seagrass C. rotundata 39.10% and T. hemprichii 27.09%. The relationship between the density of seagrass C. rotundata and the abundance of sea cucumbers A. lecanora 4.285 > X2 (1:0.05); T. hemprichii with A. mauritiana 6.887> X2 (1;0.05); seagrass C. rotundata with A. miliaris 4.285 > X2 (1:0.05); A. miliaris with seagrass H. pinifolia 7.048 > X2 (1:0.05); density of seagrass T. hemprichii with abundance of sea cucumber B. similis: 5.274 > X2 (1:0.05); H. atra 5 > X2 (1:0.05); and H. coluber 5.172 > X2 (1:0.05), indicating an association between seagrass density and sea cucumber abundance.","PeriodicalId":179620,"journal":{"name":"ACROPORA: Jurnal Ilmu Kelautan dan Perikanan Papua","volume":"457 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114001348","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}
Y. E. Priharanto, Rizqi Ilmal Yaqin, Bobby Demeianto, M. Pasaribu
The impact of noise in the working area of fishing vessels should be understood, and effective noise reduction strategies should be identified to protect the health and performance of crew members in the workplace. This study aims to evaluate the level of noise in the working area of fishing vessels using a sound level meter during fishing operations. The study involved direct field data collection to obtain accurate and representative information on the noise levels experienced by the crew during fishing operations. Areas evaluated for noise levels include the engine room, deck, crew quarters, stern, and bow of the vessel. Data used for the study were collected from KM Nelayan Jaya, a fishing vessel equipped with a purse seine fishing gear, measuring 28.45 meters in length and powered by a 300 HP diesel engine. Noise levels were evaluated based on the IMO standard for noise exposure in the workplace, which recommends an average exposure limit of 80 dBA over 24 hours. The results of this study provide information on areas that exceed the specified standard noise levels and identify effective noise reduction strategies to protect the health and performance of crew members while improving the operational efficiency and overall sustainability of fishing vessels.
{"title":"Evaluasi Tingkat Kebisingan Daerah Kerja Kapal Penangkap Ikan","authors":"Y. E. Priharanto, Rizqi Ilmal Yaqin, Bobby Demeianto, M. Pasaribu","doi":"10.31957/acr.v6i1.2863","DOIUrl":"https://doi.org/10.31957/acr.v6i1.2863","url":null,"abstract":"The impact of noise in the working area of fishing vessels should be understood, and effective noise reduction strategies should be identified to protect the health and performance of crew members in the workplace. This study aims to evaluate the level of noise in the working area of fishing vessels using a sound level meter during fishing operations. The study involved direct field data collection to obtain accurate and representative information on the noise levels experienced by the crew during fishing operations. Areas evaluated for noise levels include the engine room, deck, crew quarters, stern, and bow of the vessel. Data used for the study were collected from KM Nelayan Jaya, a fishing vessel equipped with a purse seine fishing gear, measuring 28.45 meters in length and powered by a 300 HP diesel engine. Noise levels were evaluated based on the IMO standard for noise exposure in the workplace, which recommends an average exposure limit of 80 dBA over 24 hours. The results of this study provide information on areas that exceed the specified standard noise levels and identify effective noise reduction strategies to protect the health and performance of crew members while improving the operational efficiency and overall sustainability of fishing vessels.","PeriodicalId":179620,"journal":{"name":"ACROPORA: Jurnal Ilmu Kelautan dan Perikanan Papua","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115849645","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}
This study aims to determine the spatial and temporal variations of chlorophyll-a and SST by using fashionable satellite data in Naukenjerai District waters and the correlation of chlorophyll-a and SST to the distribution of species Lebtobrama Sp. in the Naukenjerai District. This research was conducted in May to June 2022 in the waters of the Naukenjerai District. MODIS image data analysis was performed at the Aquatic Resources Management Laboratory. The data used are data on the catch and the coordinates of the catch from May to June 2022. The results of this study indicate that the distribution of species Lebtobrama Sp. catches from May to June was 857 kg for 12 trips. While the range of chlorophyll-a in May to June ranged from 0.3 mg /m³ - 2.28 mg/m³ and the SPL range from May to June ranged between 25.42°C - 28.42°C. The results of the correlation between chlorophyll-a and species Lebtobrama Sp. catches showed a moderate relationship (correlation coefficient (r) 0.48), while the relationship between SPL and species Lebtobrama Sp. catches showed a strong relationship (correlation coefficient (r) 0.58) and the relationship of chlorophyll-a and SPL with the trapped catch shows a strong relationship (correlation coefficient (r) 0.59).
{"title":"Pola Distribusi Spasial Dan Temporal Spesies Lebtobrama Sp. Dengan Menggunakan Teknologi Citra Satelit Aqua Modis Di Perairan Distrik Naukenjerai Kabupaten Merauke.","authors":"Marius Agustinus Welliken, Edy H.P. Melmambessy","doi":"10.31957/acr.v6i1.2913","DOIUrl":"https://doi.org/10.31957/acr.v6i1.2913","url":null,"abstract":"This study aims to determine the spatial and temporal variations of chlorophyll-a and SST by using fashionable satellite data in Naukenjerai District waters and the correlation of chlorophyll-a and SST to the distribution of species Lebtobrama Sp. in the Naukenjerai District. This research was conducted in May to June 2022 in the waters of the Naukenjerai District. MODIS image data analysis was performed at the Aquatic Resources Management Laboratory. The data used are data on the catch and the coordinates of the catch from May to June 2022. The results of this study indicate that the distribution of species Lebtobrama Sp. catches from May to June was 857 kg for 12 trips. While the range of chlorophyll-a in May to June ranged from 0.3 mg /m³ - 2.28 mg/m³ and the SPL range from May to June ranged between 25.42°C - 28.42°C. The results of the correlation between chlorophyll-a and species Lebtobrama Sp. catches showed a moderate relationship (correlation coefficient (r) 0.48), while the relationship between SPL and species Lebtobrama Sp. catches showed a strong relationship (correlation coefficient (r) 0.58) and the relationship of chlorophyll-a and SPL with the trapped catch shows a strong relationship (correlation coefficient (r) 0.59).","PeriodicalId":179620,"journal":{"name":"ACROPORA: Jurnal Ilmu Kelautan dan Perikanan Papua","volume":"325 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127570674","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}
Muhammad Hisyam, E. Indrayani, J. D. Kalor, Ida Waum
Mangrove ecosystems have an important role as a filter for CO2 gas that is in the air through the process of photosynthesis. This is why the existence of mangrove forests is of great concern in maintaining the carbon cycle in the world. Most of the mangrove forests in Indonesia are in the Papua region, which accounts for one-third of the total area of mangrove forests in Indonesia. One of the mangrove forest areas that is quite thick is in the Youtefa Bay area in Enggros and Entrop Villages with Rhizophora mucronata species found. This research was conducted by measuring the carbon content using an allometric formula that utilizes stem diameter values. This study showed that the biomass of Rhizophora mucronata in Entrop Village was more than that of Enggros Village, which was 1063.44 Kg. Carbon content and absorption also showed results that were directly proportional to the biomass in Entrop Village at 19.4616 and 71.42 Kg/m2. The ratio of the difference in biomass and carbon content between the two villages also shows a difference of 14%.
{"title":"Perbandingan Stok Karbon Mangrove Rhizophora mucronata di Kampung Enggros dan Entrop, Jayapura, Papua.","authors":"Muhammad Hisyam, E. Indrayani, J. D. Kalor, Ida Waum","doi":"10.31957/acr.v6i1.2880","DOIUrl":"https://doi.org/10.31957/acr.v6i1.2880","url":null,"abstract":"Mangrove ecosystems have an important role as a filter for CO2 gas that is in the air through the process of photosynthesis. This is why the existence of mangrove forests is of great concern in maintaining the carbon cycle in the world. Most of the mangrove forests in Indonesia are in the Papua region, which accounts for one-third of the total area of mangrove forests in Indonesia. One of the mangrove forest areas that is quite thick is in the Youtefa Bay area in Enggros and Entrop Villages with Rhizophora mucronata species found. This research was conducted by measuring the carbon content using an allometric formula that utilizes stem diameter values. This study showed that the biomass of Rhizophora mucronata in Entrop Village was more than that of Enggros Village, which was 1063.44 Kg. Carbon content and absorption also showed results that were directly proportional to the biomass in Entrop Village at 19.4616 and 71.42 Kg/m2. The ratio of the difference in biomass and carbon content between the two villages also shows a difference of 14%.","PeriodicalId":179620,"journal":{"name":"ACROPORA: Jurnal Ilmu Kelautan dan Perikanan Papua","volume":"241 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124655851","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}
Muhamad Fahruddin, Muhammad Haikal Abdurrachman, Adi Suriyadin, Heri Murtawan, B. Setyono, Ardy Saputra, A. Ilyas
Research on the diversity index, uniformity, and dominance of seagrass in Ketapang waters was carried out in November 2021. The method used in this study was a direct field experiment using a quadrant transect measuring 50x50 cm. The results showed that there were four types of seagrasses, namely Enhalus acoroides, Thalassia hemprichii, Cymodocea rotundata, and Halophila ovalis. Seagrass species C. rotundata is the type found at each observation station, so it can be said that this species can live well in the characteristics of Ketapang waters. The average diversity index, uniformity, and dominance of seagrass species in Ketapang waters were dominated by C. rotundata and E. acoroides.
{"title":"Keanekaragaman Lamun di Perairan Pantai Ketapang Lombok Barat","authors":"Muhamad Fahruddin, Muhammad Haikal Abdurrachman, Adi Suriyadin, Heri Murtawan, B. Setyono, Ardy Saputra, A. Ilyas","doi":"10.31957/acr.v5i2.2506","DOIUrl":"https://doi.org/10.31957/acr.v5i2.2506","url":null,"abstract":"Research on the diversity index, uniformity, and dominance of seagrass in Ketapang waters was carried out in November 2021. The method used in this study was a direct field experiment using a quadrant transect measuring 50x50 cm. The results showed that there were four types of seagrasses, namely Enhalus acoroides, Thalassia hemprichii, Cymodocea rotundata, and Halophila ovalis. Seagrass species C. rotundata is the type found at each observation station, so it can be said that this species can live well in the characteristics of Ketapang waters. The average diversity index, uniformity, and dominance of seagrass species in Ketapang waters were dominated by C. rotundata and E. acoroides.","PeriodicalId":179620,"journal":{"name":"ACROPORA: Jurnal Ilmu Kelautan dan Perikanan Papua","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127446277","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}
There are several kinds of tourist objects in Jayapura City, one of which is the Hamadi beach tourist attraction. Tourists on Hamadi beach increases anthropogenic activities which can cause the aesthetics of the waters to decrease. Physical and chemical pollution can increase biological pollution, namely the presence of pathogenic bacteria such as coliform bacteria. Tourist beach waters that have been contaminated with Coliform bacteria will have an impact on tourists. The conducted of this study was to determine the density of Coliform bacteria, Nitrate and Phosphate concentrations and the relationship between Coliform bacteria density and Nitrate and Phosphate concentrations. The method used in this study was a survey method with a quantitative descriptive approach, while the data collection technique used a purposive random sampling technique at 3 stations with 3 points at each station. Data analysis used includes analysis of Coliform bacteria density, analysis of water quality based on the quality standard of the relationship between coliform bacteria density and concentrations of nitrate and phosphate using Pearson correlation analysis. The results showed that the average density of bacteria at station I was found to be 494 colonies/100mL, station II was found to be 58 colonies/100mL and station III was found to be 35 colonies/100mL. Nitrate and Phosphate concentrations in the coastal waters of Hamadi tourism were at station I the concentration of nitrate 1.90 mg/L and phosphate 0.045/mg/L. The concentration of nitrate at Station II was 2.4 mg/L and phosphate, which was 0.41, exceeded the water quality standard (0.015). Nitrate and phosphate concentrations at Station III were 4.40 mg/L nitrate and 0.060/mg/L phosphate. Based on the Pearson correlation test, the relationship between the density of Coliform bacteria and the concentration of Nitrate and Phosphate in the waters of the Hamadi tourism beach was found to have an opposite or weak and moderate relationship.
{"title":"Analisis Kepadatan bakteri Coliform serta hubungannya dengan konsentrasi Nitrat dan Fosfat di Pantai wisata Hamadi, Kota Jayapura.","authors":"Popi Ida Laila Ayer, V. K. Mandey","doi":"10.31957/acr.v5i2.2517","DOIUrl":"https://doi.org/10.31957/acr.v5i2.2517","url":null,"abstract":"There are several kinds of tourist objects in Jayapura City, one of which is the Hamadi beach tourist attraction. Tourists on Hamadi beach increases anthropogenic activities which can cause the aesthetics of the waters to decrease. Physical and chemical pollution can increase biological pollution, namely the presence of pathogenic bacteria such as coliform bacteria. Tourist beach waters that have been contaminated with Coliform bacteria will have an impact on tourists. The conducted of this study was to determine the density of Coliform bacteria, Nitrate and Phosphate concentrations and the relationship between Coliform bacteria density and Nitrate and Phosphate concentrations. The method used in this study was a survey method with a quantitative descriptive approach, while the data collection technique used a purposive random sampling technique at 3 stations with 3 points at each station. Data analysis used includes analysis of Coliform bacteria density, analysis of water quality based on the quality standard of the relationship between coliform bacteria density and concentrations of nitrate and phosphate using Pearson correlation analysis. The results showed that the average density of bacteria at station I was found to be 494 colonies/100mL, station II was found to be 58 colonies/100mL and station III was found to be 35 colonies/100mL. Nitrate and Phosphate concentrations in the coastal waters of Hamadi tourism were at station I the concentration of nitrate 1.90 mg/L and phosphate 0.045/mg/L. The concentration of nitrate at Station II was 2.4 mg/L and phosphate, which was 0.41, exceeded the water quality standard (0.015). Nitrate and phosphate concentrations at Station III were 4.40 mg/L nitrate and 0.060/mg/L phosphate. Based on the Pearson correlation test, the relationship between the density of Coliform bacteria and the concentration of Nitrate and Phosphate in the waters of the Hamadi tourism beach was found to have an opposite or weak and moderate relationship.","PeriodicalId":179620,"journal":{"name":"ACROPORA: Jurnal Ilmu Kelautan dan Perikanan Papua","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123643397","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}
Yohanes Aibesa, Mudjirahayu Mudjirahayu, Tutik Handayani, Emmanuel Manangkulangi, A. H. A. Toha, F. Simatauw, F. I. Saleh
This study aims to determine the distribution of length to weight, sex ratio, gonad maturity level of julung fish (Hemiramphus lutkei) traded in Sanggeng and Borobudur Manokwari fish markets, West Papua. Research data collection was carried out for ± 1 month, namely February - March 2021, using a descriptive method. The number of fish samples collected was 542 fish. The results of the analysis of the size distribution of julung-julung fish during sampling for body length ranged from 219 – 355 mm for males and 215 -380 mm for females, with a body weight range of 27-53 grams for males and 30-65 grams. The sex ratio analysis of julung julung fish was obtained for males (321 fish) and females (221 fish) significantly different, which means this ratio deviated from the ideal value of 1:1. Based on the results of the analysis show that the value of X2 -count > X2 -table, then H0 is rejected, which means the sex ratio of male and female fish is not balanced from TKG I-VII for males and TKG II-VII for females and mostly found in TKG III conditions. The size of the male julung fish when the gonads first mature was estimated at a length of about 230-260 mm and the female at a size of 250-280 mm. The average Gonad Somatic Index (GSI) of female julung fish was 0.0876 and the standard error was 0.0061 with a GSI range of 0.0092 – 0.7574. The relation- ship between TKG and GSI shows that the increasing stage of fish gonad maturity will be followed by an increase in the value of the fish gonadal index.
{"title":"Distribusi Ukuran dan Tingkat Kematangan Gonad Ikan Julung-Julung Hemiramphus lutkei (Valenciennes, 1847) yang diperdagangkan di Kabupaten Manokwari Papua Barat","authors":"Yohanes Aibesa, Mudjirahayu Mudjirahayu, Tutik Handayani, Emmanuel Manangkulangi, A. H. A. Toha, F. Simatauw, F. I. Saleh","doi":"10.31957/acr.v5i2.2572","DOIUrl":"https://doi.org/10.31957/acr.v5i2.2572","url":null,"abstract":"This study aims to determine the distribution of length to weight, sex ratio, gonad maturity level of julung fish (Hemiramphus lutkei) traded in Sanggeng and Borobudur Manokwari fish markets, West Papua. Research data collection was carried out for ± 1 month, namely February - March 2021, using a descriptive method. The number of fish samples collected was 542 fish. The results of the analysis of the size distribution of julung-julung fish during sampling for body length ranged from 219 – 355 mm for males and 215 -380 mm for females, with a body weight range of 27-53 grams for males and 30-65 grams. The sex ratio analysis of julung julung fish was obtained for males (321 fish) and females (221 fish) significantly different, which means this ratio deviated from the ideal value of 1:1. Based on the results of the analysis show that the value of X2 -count > X2 -table, then H0 is rejected, which means the sex ratio of male and female fish is not balanced from TKG I-VII for males and TKG II-VII for females and mostly found in TKG III conditions. The size of the male julung fish when the gonads first mature was estimated at a length of about 230-260 mm and the female at a size of 250-280 mm. The average Gonad Somatic Index (GSI) of female julung fish was 0.0876 and the standard error was 0.0061 with a GSI range of 0.0092 – 0.7574. The relation- ship between TKG and GSI shows that the increasing stage of fish gonad maturity will be followed by an increase in the value of the fish gonadal index.","PeriodicalId":179620,"journal":{"name":"ACROPORA: Jurnal Ilmu Kelautan dan Perikanan Papua","volume":"213 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116999026","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}
The gastropod community is an important component in the food chain in seagrass beds, where gastropods are basic detritus feeders. The presence of gastropods is largely determined by the presence of seagrass vegetation in coastal areas. Research on the relationship between seagrass density and gasrtopod density in the waters of Tayando Yamtel Village, Tam District, Tual City, was conducted in March-May 2018, using the quadrant linear transect method. The results of the research on the relationship between seagrass density and gasrtopod density obtained a correlation value at station I, obtained a 2-tailed significance value > 0.05 indicating a sufficient/moderate degree of relationship (r = 0.441) and the direction of the relationship was positive. While at stations II (r = -0.778) and III (r = -0,308) showed a 2-tailed significance value <0.05 with a very weak degree of relationship and a negative direction of relationship.
{"title":"Hubungan Kerapatan Lamun dengan Kepadatan Gastropoda Pada Habitat Lamun Di Perairan Desa Tayando Yamtel Kecamatan Tayando Yamtel Kota Tual","authors":"Liyatin Gea, Muhamad Hariono","doi":"10.31957/acr.v5i2.2516","DOIUrl":"https://doi.org/10.31957/acr.v5i2.2516","url":null,"abstract":"The gastropod community is an important component in the food chain in seagrass beds, where gastropods are basic detritus feeders. The presence of gastropods is largely determined by the presence of seagrass vegetation in coastal areas. Research on the relationship between seagrass density and gasrtopod density in the waters of Tayando Yamtel Village, Tam District, Tual City, was conducted in March-May 2018, using the quadrant linear transect method. The results of the research on the relationship between seagrass density and gasrtopod density obtained a correlation value at station I, obtained a 2-tailed significance value > 0.05 indicating a sufficient/moderate degree of relationship (r = 0.441) and the direction of the relationship was positive. While at stations II (r = -0.778) and III (r = -0,308) showed a 2-tailed significance value <0.05 with a very weak degree of relationship and a negative direction of relationship.","PeriodicalId":179620,"journal":{"name":"ACROPORA: Jurnal Ilmu Kelautan dan Perikanan Papua","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129064151","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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