This study was conducted to determine the effects of different levels of vitamin C (ascorbic acid) supplementation on NVC (Nutrition Value Coeficient), clinical signs, pathological change, phagocytic index, antibody, and survival rate of fingerlings common carp (Cyprinus carpio L.). Three diets were formulated incorporating vitamin C at levels of 0 (control), 250 and 500 mg/ kg. Fish were randomly fed with the experimental diets for 35 days. On 15th day fish were injected intra muscular with 0.1 ml/fish, 106 CFU/ml concentration of A. hydrophila. The present study suggest that vitamin C concentration 250 mg/kg of diet most appropriate concentration, can enhance fish health (NVC), immune system (phagocytic index and antibody), survival rate, normal clinical signs and pathological change after infected by A. hydrophila.
{"title":"Suplementasi vitamin c dalam pakan sebagai upaya peningkatan kesehatan ikan mas (Cyprinus carpio L.) dalam menghadapi infeksi bakteri Aeromonas hydrophila","authors":"Agustina, Gina Saptiani, Rahmi Nohon","doi":"10.30872/jipt.v1i2.433","DOIUrl":"https://doi.org/10.30872/jipt.v1i2.433","url":null,"abstract":"This study was conducted to determine the effects of different levels of vitamin C (ascorbic acid) supplementation on NVC (Nutrition Value Coeficient), clinical signs, pathological change, phagocytic index, antibody, and survival rate of fingerlings common carp (Cyprinus carpio L.). Three diets were formulated incorporating vitamin C at levels of 0 (control), 250 and 500 mg/ kg. Fish were randomly fed with the experimental diets for 35 days. On 15th day fish were injected intra muscular with 0.1 ml/fish, 106 CFU/ml concentration of A. hydrophila. The present study suggest that vitamin C concentration 250 mg/kg of diet most appropriate concentration, can enhance fish health (NVC), immune system (phagocytic index and antibody), survival rate, normal clinical signs and pathological change after infected by A. hydrophila.","PeriodicalId":123293,"journal":{"name":"Jurnal Ilmu Perikanan Tropis Nusantara (Nusantara Tropical Fisheries Science Journal)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114461422","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 aimed to determine the effect of Pseudomonas ECP and ICP injection incubated on TSA and TSB media with incubation periad of 72 hours on the nila tilapia (O. niloticus) haematology. Parameters observed were hemoglobin, hematocrit, erythrocyte total and of leukocyte total. The ECP or ICP ware injected into intraperitial nila tilapia as much as 0.2 ml/fish. Observations were made on 6, 12, 24, 48, 72, 96, 120, 144, 168 hour after injection. Extracellular products were obtained by centifuging Pseudomonas suspension grown on TSA and TSB media (incubation time 72 h + 30oC) using a 10.000 g centrifuge for 30 min at 4oC. Supernatant was filtered using filter paper 0.45 μm. To get the ICP, supernatant was centrifuged in room temperature. The results revealed that ICP injection caused the decrease of haematology faster than ECP injection. This indicates that the ICP Pseudomonas more virulent than ECP.
本研究旨在探讨假单胞菌ECP和ICP注射液在TSA和TSB培养基上孵育72小时后对尼罗罗非鱼血液学的影响。观察血红蛋白、红细胞压积、红细胞总数和白细胞总数。将ECP或ICP注射到尼罗罗非鱼腹腔内，剂量为0.2 ml/条。分别于注射后6、12、24、48、72、96、120、144、168 h进行观察。通过在TSA和TSB培养基上培养假单胞菌悬浮液(培养时间72 h + 30℃)，使用10 000 g离心机在4℃下离心30 min，获得细胞外产物。上清用0.45 μm滤纸过滤。为了得到ICP，上清液在室温下离心。结果显示，颅内压注射对血液学的影响比ECP注射更快。这表明ICP假单胞菌比ECP的毒力更强。
{"title":"Efek penginjeksian produk intraseluler (icp) dan ekstraseluler (ecp) bakteri Pseudomonas sp. terhadap gambaran darah ikan nila (Oreochromis niloticus)","authors":"Dosim, Esti Handayani Hardi, Agustina","doi":"10.30872/jipt.v1i2.430","DOIUrl":"https://doi.org/10.30872/jipt.v1i2.430","url":null,"abstract":"This study aimed to determine the effect of Pseudomonas ECP and ICP injection incubated on TSA and TSB media with incubation periad of 72 hours on the nila tilapia (O. niloticus) haematology. Parameters observed were hemoglobin, hematocrit, erythrocyte total and of leukocyte total. The ECP or ICP ware injected into intraperitial nila tilapia as much as 0.2 ml/fish. Observations were made on 6, 12, 24, 48, 72, 96, 120, 144, 168 hour after injection. Extracellular products were obtained by centifuging Pseudomonas suspension grown on TSA and TSB media (incubation time 72 h + 30oC) using a 10.000 g centrifuge for 30 min at 4oC. Supernatant was filtered using filter paper 0.45 μm. To get the ICP, supernatant was centrifuged in room temperature. The results revealed that ICP injection caused the decrease of haematology faster than ECP injection. This indicates that the ICP Pseudomonas more virulent than ECP.","PeriodicalId":123293,"journal":{"name":"Jurnal Ilmu Perikanan Tropis Nusantara (Nusantara Tropical Fisheries Science Journal)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131373259","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}
Dwi Yudha Aisyah, Aditya Irawan, Lily Inderia Sari
This study was aimed to analyze the prospects of development of the financial aspects of amplang processing and marketing channel of amplang processing business. The data was collected through a survey, completed by direct observation in the field and interviews with the respondents. The applied data analysis includes analysis of costs, revenues, income and business feasibility. The results showed the average revenue earned from amplang processing business is Rp. 7.040,000 per month or Rp. 70.400,000 per year, while the average cost of Rp. 4.623.167 per month or Rp. 46.238.333/year. The average income was found as much as Rp. 2.416.167/month or Rp. 24,161,667 / year. The value of the balance of revenue and cost (R/C) in the business of processing amplang is 1.54, which means that the amplang processing business is able to provide a gain of 1.54 of the cost. There are two pattern of marketing channel that were identified in the field, the first pattern is: amplang producer to retailer to consumer; and the second pattern is: amplang producer to consumer directly.
{"title":"Hubungan kerapatan tegakan lamun terhadap kelimpahan sand dollar (Laganum sp.) di padang lamun Pulau Derawan Kabupaten Berau","authors":"Dwi Yudha Aisyah, Aditya Irawan, Lily Inderia Sari","doi":"10.30872/jipt.v1i2.429","DOIUrl":"https://doi.org/10.30872/jipt.v1i2.429","url":null,"abstract":"This study was aimed to analyze the prospects of development of the financial aspects of amplang processing and marketing channel of amplang processing business. The data was collected through a survey, completed by direct observation in the field and interviews with the respondents. The applied data analysis includes analysis of costs, revenues, income and business feasibility. The results showed the average revenue earned from amplang processing business is Rp. 7.040,000 per month or Rp. 70.400,000 per year, while the average cost of Rp. 4.623.167 per month or Rp. 46.238.333/year. The average income was found as much as Rp. 2.416.167/month or Rp. 24,161,667 / year. The value of the balance of revenue and cost (R/C) in the business of processing amplang is 1.54, which means that the amplang processing business is able to provide a gain of 1.54 of the cost. There are two pattern of marketing channel that were identified in the field, the first pattern is: amplang producer to retailer to consumer; and the second pattern is: amplang producer to consumer directly.","PeriodicalId":123293,"journal":{"name":"Jurnal Ilmu Perikanan Tropis Nusantara (Nusantara Tropical Fisheries Science Journal)","volume":"402 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127440557","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 was aimed to analyze the prospects of development of the This research was aimed to analyze the relationship between plankton abundance and morphometric growth of Mud Clam (Polymesoda erosa). The study was located in an idle brackish water pond in Mahakam Delta, by culturing Polymesoda erosa in small scale. Grouping random design was applied for sampling. Treatment was divided into factor A and B. Factor A is related to shell size: size I (40 – 60,99 mm), II (61 – 80,99 mm) and size III (81 – 100 mm). Factor B is indicating to study location with vegetation (Rhizophora sp) and no vegetation. In order to analyze plankton abundance, a quantitative descriptive analysis was applied, in addition of ANOVA test to analyze the growth. The result indicated that between two study ponds is different. The number of plankton per liter water from vegetated pond has more plankton individual than the sample from non-vegetated pond. The applied treatment on study ponds and shell size determined the morphometric growth and biometric. The growth of shell length is faster than that on height and thickness. The growth of mud clam in vegetated ponds relatively better that the pond without vegetation.
{"title":"Analisis kelimpahan plankton dan pertumbuhan kerang kepah Polymesoda erosa (Solander, 1786) yang dipelihara pada tambak di Delta Mahakam","authors":"Samsul Rizal, Jailani","doi":"10.30872/jipt.v1i2.438","DOIUrl":"https://doi.org/10.30872/jipt.v1i2.438","url":null,"abstract":"This study was aimed to analyze the prospects of development of the This research was aimed to analyze the relationship between plankton abundance and morphometric growth of Mud Clam (Polymesoda erosa). The study was located in an idle brackish water pond in Mahakam Delta, by culturing Polymesoda erosa in small scale. Grouping random design was applied for sampling. Treatment was divided into factor A and B. Factor A is related to shell size: size I (40 – 60,99 mm), II (61 – 80,99 mm) and size III (81 – 100 mm). Factor B is indicating to study location with vegetation (Rhizophora sp) and no vegetation. In order to analyze plankton abundance, a quantitative descriptive analysis was applied, in addition of ANOVA test to analyze the growth. The result indicated that between two study ponds is different. The number of plankton per liter water from vegetated pond has more plankton individual than the sample from non-vegetated pond. The applied treatment on study ponds and shell size determined the morphometric growth and biometric. The growth of shell length is faster than that on height and thickness. The growth of mud clam in vegetated ponds relatively better that the pond without vegetation.","PeriodicalId":123293,"journal":{"name":"Jurnal Ilmu Perikanan Tropis Nusantara (Nusantara Tropical Fisheries Science Journal)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116624284","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 aims of research where to analysis profitability of seaweed farming in the village Teritip financially based investment criteria, namely: Net Present Value (NPV), Internal Rate of Return (IRR), Net Benefit-Cost Ratio (Net B / C), Payback Period, and sensitivity analysis. this is study to knowing the marketing channel and the problems faced in the cultivation of seaweed in the Village. This is study was conducted from to January 2013 through March 2013. Method used the purposive sampling. Data analysis used financial analysis, (Present Net Value, Internal Rate of Return, Net Benefit Cost Ratio, Payback Period), and sensitivity analysis, and descriptive analysis for marketing level channels. Result of the research shows that the cultivation of seaweed in the Village Teritip was profitable. Seaweed cultivation was can be continue based on the indicator of NPV, IRR, Net B/C, Payback Period, and sensitivity analysis. Channel marketing was the use channel level one and level three, level at marketing purposes to Balikpapan and Surabaya.
本研究旨在分析Teritip村海藻养殖的财务盈利能力，基于投资标准，即:净现值(NPV)、内部收益率(IRR)、净收益-成本比(Net B / C)、投资回收期和敏感性分析。本研究旨在了解该村海藻养殖的营销渠道和面临的问题。这项研究从2013年1月到2013年3月进行。方法采用目的抽样法。数据分析采用财务分析(现值、内部收益率、净收益成本比、投资回收期)、敏感性分析和营销级渠道描述性分析。研究结果表明，在Teritip村种植海藻是有利可图的。根据NPV、IRR、净B/C、投资回收期和敏感性分析，可以继续进行海藻养殖。渠道营销主要是利用渠道一级和渠道三级，以八里巴湾和泗水为一级营销目的。
{"title":"Analisis finansial budidaya rumput laut (eucheuma cottonii) di Kelurahan Teritip Kecamatan Balikpapan Timur Kota Balikpapan","authors":"Taufik, Fitriyana, Zul Asman Randika","doi":"10.30872/jipt.v1i2.431","DOIUrl":"https://doi.org/10.30872/jipt.v1i2.431","url":null,"abstract":"This aims of research where to analysis profitability of seaweed farming in the village Teritip financially based investment criteria, namely: Net Present Value (NPV), Internal Rate of Return (IRR), Net Benefit-Cost Ratio (Net B / C), Payback Period, and sensitivity analysis. this is study to knowing the marketing channel and the problems faced in the cultivation of seaweed in the Village. This is study was conducted from to January 2013 through March 2013. Method used the purposive sampling. Data analysis used financial analysis, (Present Net Value, Internal Rate of Return, Net Benefit Cost Ratio, Payback Period), and sensitivity analysis, and descriptive analysis for marketing level channels. Result of the research shows that the cultivation of seaweed in the Village Teritip was profitable. Seaweed cultivation was can be continue based on the indicator of NPV, IRR, Net B/C, Payback Period, and sensitivity analysis. Channel marketing was the use channel level one and level three, level at marketing purposes to Balikpapan and Surabaya.","PeriodicalId":123293,"journal":{"name":"Jurnal Ilmu Perikanan Tropis Nusantara (Nusantara Tropical Fisheries Science Journal)","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132310727","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}
Zooplankton plays important role in food chain system within fresh water ecosystem. In the trophic level it acts as bridging energy from phytoplankton to fish juvenile. Meanwhile research on this plankton is considerably lacking. This study is aimed to test culturing cladocera in the laboratory. Cladocera and phytoplankton were collected from Lutan Lake-Palangkaraya and the transported to the laboratory. Three fish water tank were used to culture cladocera for 5-week testing. The results indicate that there was a negative relationship between average numbers of cladocera dan phytoplankton during culturing period. Two-week culturing period was identified as the most optimal period for culturing cladocera under laboratory condition.
{"title":"Pengamatan terhadap pembiakan cladocera (Macrothrix sp.) dan phytoplankton secara eksitu","authors":"Hamdhani","doi":"10.30872/jipt.v1i2.437","DOIUrl":"https://doi.org/10.30872/jipt.v1i2.437","url":null,"abstract":"Zooplankton plays important role in food chain system within fresh water ecosystem. In the trophic level it acts as bridging energy from phytoplankton to fish juvenile. Meanwhile research on this plankton is considerably lacking. This study is aimed to test culturing cladocera in the laboratory. Cladocera and phytoplankton were collected from Lutan Lake-Palangkaraya and the transported to the laboratory. Three fish water tank were used to culture cladocera for 5-week testing. The results indicate that there was a negative relationship between average numbers of cladocera dan phytoplankton during culturing period. Two-week culturing period was identified as the most optimal period for culturing cladocera under laboratory condition.","PeriodicalId":123293,"journal":{"name":"Jurnal Ilmu Perikanan Tropis Nusantara (Nusantara Tropical Fisheries Science Journal)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114563598","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 research was aimed to describe the dynamic of fish community on seagrass beds and to identify the distribution. The study was located in the coastal waters of Bontang during west season with 4 sampling stations. The total number of captured fish was 378 individuals. Correspondence analysis approach was applied to determine the distribution. The result shows that there is similarity between location A and B, while C and D is also identified closely similar. This result also indicated that uniformity factor of habitat and environment characteristic is most likely the major cause of fish diversity that associated to dynamic and varied seagrass beds.
{"title":"Sebaran komunitas ikan padang lamun (seagrass beds) pada musim barat di perairan pesisir Kota Bontang, Kalimantan Timur","authors":"Jailani","doi":"10.30872/jipt.v1i2.439","DOIUrl":"https://doi.org/10.30872/jipt.v1i2.439","url":null,"abstract":"This research was aimed to describe the dynamic of fish community on seagrass beds and to identify the distribution. The study was located in the coastal waters of Bontang during west season with 4 sampling stations. The total number of captured fish was 378 individuals. Correspondence analysis approach was applied to determine the distribution. The result shows that there is similarity between location A and B, while C and D is also identified closely similar. This result also indicated that uniformity factor of habitat and environment characteristic is most likely the major cause of fish diversity that associated to dynamic and varied seagrass beds.","PeriodicalId":123293,"journal":{"name":"Jurnal Ilmu Perikanan Tropis Nusantara (Nusantara Tropical Fisheries Science Journal)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123087338","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}
Along with the increase in population in the Kutai National Park (Kutai NP) has raised the land issue of due to the need for living space and the exploitation of natural resources. This study is part of an effort to evaluate the condition of mangrove forests as a first step effort to protect mangrove forests as critical habitat for coastal Kutai NP. The research was conducted in March to April 2012, with the goal of evaluating and measuring vegetation cover and land use (Land use) mangrove forests in coastal Kutai NP. For this purpose, the data is used Landsat ETM + image with 7 bands that recorded in 2008. Process analysis using NDVI (Normalizet Difference Vegetation Index) composite channel by IR (bands 4 and 3), while the extent of the damage was analyzed using standard from Decree of Ministry of environment No. 201, 2004. Base on the research, Kutai National Park has the potential of ± 5192.54 ha of mangroves, mangrove forest ecological conditions in Kutai NP generally be in the grade is still good with vegetation density ranging between 967-1567 ind / ha, Kutai NP In some areas such as the Estuary Sangatta, bay and estuary Sangkima Lombok are areas that have experienced enough land conversion, overall mangrove forest that has been opened by ± 1845.85 ha or 26.2%. Mangrove forests are located close to residential vulnerable to land-use changes.
{"title":"Pemetaan dan analisis tingkat kerusakan hutan mangrove di Taman Nasional Kutai berdasarkan data satelit landsat ETM dan kerapatan vegetasi","authors":"Anugrah Aditya Budiarsa, Samsul Rizal","doi":"10.30872/jipt.v1i2.434","DOIUrl":"https://doi.org/10.30872/jipt.v1i2.434","url":null,"abstract":"Along with the increase in population in the Kutai National Park (Kutai NP) has raised the land issue of due to the need for living space and the exploitation of natural resources. This study is part of an effort to evaluate the condition of mangrove forests as a first step effort to protect mangrove forests as critical habitat for coastal Kutai NP. The research was conducted in March to April 2012, with the goal of evaluating and measuring vegetation cover and land use (Land use) mangrove forests in coastal Kutai NP. For this purpose, the data is used Landsat ETM + image with 7 bands that recorded in 2008. Process analysis using NDVI (Normalizet Difference Vegetation Index) composite channel by IR (bands 4 and 3), while the extent of the damage was analyzed using standard from Decree of Ministry of environment No. 201, 2004. Base on the research, Kutai National Park has the potential of ± 5192.54 ha of mangroves, mangrove forest ecological conditions in Kutai NP generally be in the grade is still good with vegetation density ranging between 967-1567 ind / ha, Kutai NP In some areas such as the Estuary Sangatta, bay and estuary Sangkima Lombok are areas that have experienced enough land conversion, overall mangrove forest that has been opened by ± 1845.85 ha or 26.2%. Mangrove forests are located close to residential vulnerable to land-use changes.","PeriodicalId":123293,"journal":{"name":"Jurnal Ilmu Perikanan Tropis Nusantara (Nusantara Tropical Fisheries Science Journal)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121394763","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}
Kissing gourami fish roes is a traditional salt fermented fish product widely consumed in east Kalimantan. This product is still made traditionally by applying spontaneous fermentation with added salt. This research aimed to isolate and identify bacteria found in fermented kissing gourami fish roes. The research consists of three steps: producing, isolating and bacteria-identifying. In this research kissing gourami fish roes has been fermented for one year so that fish roes fermented can be obtained. Those colonies were isolated and preserved using tryptic soy agar (TSA) media and determined using BBL Crystal method. The results described 5 (five) different colony of bacteria grew dominantly. The bacteria were identified as Bacillus megaterium, Leifsonia aquatica, Corynebacterium propinquum and Lysinibacillus sphaericus.
{"title":"Isolasi dan identifikasi bakteri dari produk fermentasi telur ikan tambakan (Helostoma temminckii C.V)","authors":"Rafitah Hasanah","doi":"10.30872/jipt.v1i2.432","DOIUrl":"https://doi.org/10.30872/jipt.v1i2.432","url":null,"abstract":"Kissing gourami fish roes is a traditional salt fermented fish product widely consumed in east Kalimantan. This product is still made traditionally by applying spontaneous fermentation with added salt. This research aimed to isolate and identify bacteria found in fermented kissing gourami fish roes. The research consists of three steps: producing, isolating and bacteria-identifying. In this research kissing gourami fish roes has been fermented for one year so that fish roes fermented can be obtained. Those colonies were isolated and preserved using tryptic soy agar (TSA) media and determined using BBL Crystal method. The results described 5 (five) different colony of bacteria grew dominantly. The bacteria were identified as Bacillus megaterium, Leifsonia aquatica, Corynebacterium propinquum and Lysinibacillus sphaericus.","PeriodicalId":123293,"journal":{"name":"Jurnal Ilmu Perikanan Tropis Nusantara (Nusantara Tropical Fisheries Science Journal)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130105589","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 status of fish populations is needed to properly manage these resources in order to maintain its sustainability. This study aims to examine the growth factor of some fish caught by trawl in East Kutai Regency include the length and weight relationships, condition factor, the alleged growth, Gonadal Development Level, gonadal Somatic index, and fecundity. The research was conducted in the sub-district of Kaliorang, Sangkulirang and Sandaran of East Kutai regency, East Kalimantan. Collection and measurement were conducted over a period of three months. Allometric growth patterns are found in gerot-gerot, niko-niko, teri, senangin, gulamah, bulu ayam dan lampa-lampa, while Isometric growth patterns found in puput. Highest condition factor found in gulamah with the value of 1.02 and the lowest value was found in the gerot gerot with value 0.083. The collected fish length growth equation was senangin. The Regression equation for growth length i.e. senangin Lt = 180,8 (1-e-1,7(t+1,25)), puput Lt = 221,5 (1-e-0,88(t+0,88)), and bulu ayam Lt = 200,55 (1-e-0,7(t+0,95)).
{"title":"Kajian pertumbuhan beberapa jenis ikan di perairan pesisir Kabupaten Kutai Timur","authors":"Muhammad Syahrir R.","doi":"10.30872/jipt.v1i2.428","DOIUrl":"https://doi.org/10.30872/jipt.v1i2.428","url":null,"abstract":"The status of fish populations is needed to properly manage these resources in order to maintain its sustainability. This study aims to examine the growth factor of some fish caught by trawl in East Kutai Regency include the length and weight relationships, condition factor, the alleged growth, Gonadal Development Level, gonadal Somatic index, and fecundity. The research was conducted in the sub-district of Kaliorang, Sangkulirang and Sandaran of East Kutai regency, East Kalimantan. Collection and measurement were conducted over a period of three months. Allometric growth patterns are found in gerot-gerot, niko-niko, teri, senangin, gulamah, bulu ayam dan lampa-lampa, while Isometric growth patterns found in puput. Highest condition factor found in gulamah with the value of 1.02 and the lowest value was found in the gerot gerot with value 0.083. The collected fish length growth equation was senangin. The Regression equation for growth length i.e. senangin Lt = 180,8 (1-e-1,7(t+1,25)), puput Lt = 221,5 (1-e-0,88(t+0,88)), and bulu ayam Lt = 200,55 (1-e-0,7(t+0,95)).","PeriodicalId":123293,"journal":{"name":"Jurnal Ilmu Perikanan Tropis Nusantara (Nusantara Tropical Fisheries Science Journal)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115462987","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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