Prihatiningsih Prihatiningsih, B. Sadhotomo, Muhamad Taufik
{"title":"在TANGERANG - BANTEN (Priacanthus tayenus)水域,SWANGGI鱼的动力学","authors":"Prihatiningsih Prihatiningsih, B. Sadhotomo, Muhamad Taufik","doi":"10.15578/BAWAL.5.2.2013.81-87","DOIUrl":null,"url":null,"abstract":"Ikan swanggi merupakan ikan ekonomis dan ekologis penting dan statusnya di perairan belum terevaluasi dengan baik. Penelitian ini bertujuan untuk mengetahui pertumbuhan, umur dan mortalitas ikan swanggi yang dapat memberikan kontribusi terhadap pengelolaan sumber daya ikan yang berkelanjutan dan lestari. Data frekuensi panjang dan berat ikan pada Januari – Desember 2012 diperoleh dari perairan Tangerang dan sekitarnya berasal dari hasil tangkapan jaring cantrang. Sebaran frekuensi panjang ikan dipisahkan kedalam sebaran normal menggunakan metode Bhattacharya. Hubungan panjang-berat ikan swanggi jenis jantan dan betina bersifat allometrik negatif dan memiliki faktor kondisi yang baik (k=1,26). Rata-rata ukuran pertama kali tertangkap ikan swanggi (Lc=20,84 cm) lebih besar dibandingkan dengan ukuran pertama kali matang gonad (Lm=16,03 cm). Ikan swanggi dapat tumbuh hingga mencapai panjang infinitive (L∞) = 32,34 cm dengan laju pertumbuhan (K) sebesar 0,91 tahun-1 dan nilai dugaan umur teoritis pada saat panjang ikan sama dengan nol (t0) adalah 0,14 tahun-1. Panjang maksimal ikan swanggi diduga berumur 3,5 tahun dan rata-rata panjang ikan pertama kali matang gonad (Lm) diduga berumur 0,75 tahun. Mortalitas alami (M) ikan swanggi adalah 1,67, mortalitas karena penangkapan (F) 0,83, mortalitas total (Z) 2,50 dan tingkat eksploitasi (E) sebesar 0,33 yang berarti pemanfaatannya masih dapat ditingkatkan sekitar 34% dari keadaan saat ini. The purple spotted bigeye an economically and ecologically important fish and status in the waters have not been evaluated well. This research was aimed to understand the growth, age and mortality of the purple spotted bigeye. It was hoped that the results of this research can be contributed in sustainable fisheries management. The length frequency data and weight of fish in January - December 2012 was obtained from Tangerang and surrounding waters derived from trawl’s catch,. The size distribution of the fish was divided into normal distribution by using Battacharya Method. Length weight relationship of the male and female fish were negative allometric and has a good condition factor (K=1,26). The average length at first capture of the purple spotted bigeye (Lc = 20,84) was higher than the average length at first maturity (Lm=16,03). The purple spotted bigeye can grow into infinitive length of (L∞) = 32,34 cm with growth rate (K) of 0,91 year-1 and (t0) value of 0,14 year-1. The maximum length of the fish was predicted reach at age of 3,5 years with the average length of first maturity predicted reach at age 0,75 years. Natural mortality value (M) of the purple spotted bigeye was 1,67; fishing mortality (F) value was 0,83; total mortality value (Z) was 2,5 and exploitation rate (E) was at 0,33 which mean utilization can be improved about 34% from the current state.","PeriodicalId":31221,"journal":{"name":"Bawal Widya Riset Perikanan Tangkap","volume":"5 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2016-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"DINAMIKA POPULASI IKAN SWANGGI (Priacanthus tayenus) DI PERAIRAN TANGERANG – BANTEN\",\"authors\":\"Prihatiningsih Prihatiningsih, B. Sadhotomo, Muhamad Taufik\",\"doi\":\"10.15578/BAWAL.5.2.2013.81-87\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Ikan swanggi merupakan ikan ekonomis dan ekologis penting dan statusnya di perairan belum terevaluasi dengan baik. Penelitian ini bertujuan untuk mengetahui pertumbuhan, umur dan mortalitas ikan swanggi yang dapat memberikan kontribusi terhadap pengelolaan sumber daya ikan yang berkelanjutan dan lestari. Data frekuensi panjang dan berat ikan pada Januari – Desember 2012 diperoleh dari perairan Tangerang dan sekitarnya berasal dari hasil tangkapan jaring cantrang. Sebaran frekuensi panjang ikan dipisahkan kedalam sebaran normal menggunakan metode Bhattacharya. Hubungan panjang-berat ikan swanggi jenis jantan dan betina bersifat allometrik negatif dan memiliki faktor kondisi yang baik (k=1,26). Rata-rata ukuran pertama kali tertangkap ikan swanggi (Lc=20,84 cm) lebih besar dibandingkan dengan ukuran pertama kali matang gonad (Lm=16,03 cm). Ikan swanggi dapat tumbuh hingga mencapai panjang infinitive (L∞) = 32,34 cm dengan laju pertumbuhan (K) sebesar 0,91 tahun-1 dan nilai dugaan umur teoritis pada saat panjang ikan sama dengan nol (t0) adalah 0,14 tahun-1. Panjang maksimal ikan swanggi diduga berumur 3,5 tahun dan rata-rata panjang ikan pertama kali matang gonad (Lm) diduga berumur 0,75 tahun. Mortalitas alami (M) ikan swanggi adalah 1,67, mortalitas karena penangkapan (F) 0,83, mortalitas total (Z) 2,50 dan tingkat eksploitasi (E) sebesar 0,33 yang berarti pemanfaatannya masih dapat ditingkatkan sekitar 34% dari keadaan saat ini. The purple spotted bigeye an economically and ecologically important fish and status in the waters have not been evaluated well. This research was aimed to understand the growth, age and mortality of the purple spotted bigeye. It was hoped that the results of this research can be contributed in sustainable fisheries management. The length frequency data and weight of fish in January - December 2012 was obtained from Tangerang and surrounding waters derived from trawl’s catch,. The size distribution of the fish was divided into normal distribution by using Battacharya Method. Length weight relationship of the male and female fish were negative allometric and has a good condition factor (K=1,26). The average length at first capture of the purple spotted bigeye (Lc = 20,84) was higher than the average length at first maturity (Lm=16,03). The purple spotted bigeye can grow into infinitive length of (L∞) = 32,34 cm with growth rate (K) of 0,91 year-1 and (t0) value of 0,14 year-1. The maximum length of the fish was predicted reach at age of 3,5 years with the average length of first maturity predicted reach at age 0,75 years. Natural mortality value (M) of the purple spotted bigeye was 1,67; fishing mortality (F) value was 0,83; total mortality value (Z) was 2,5 and exploitation rate (E) was at 0,33 which mean utilization can be improved about 34% from the current state.\",\"PeriodicalId\":31221,\"journal\":{\"name\":\"Bawal Widya Riset Perikanan Tangkap\",\"volume\":\"5 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2016-03-16\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Bawal Widya Riset Perikanan Tangkap\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.15578/BAWAL.5.2.2013.81-87\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Bawal Widya Riset Perikanan Tangkap","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.15578/BAWAL.5.2.2013.81-87","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
DINAMIKA POPULASI IKAN SWANGGI (Priacanthus tayenus) DI PERAIRAN TANGERANG – BANTEN
Ikan swanggi merupakan ikan ekonomis dan ekologis penting dan statusnya di perairan belum terevaluasi dengan baik. Penelitian ini bertujuan untuk mengetahui pertumbuhan, umur dan mortalitas ikan swanggi yang dapat memberikan kontribusi terhadap pengelolaan sumber daya ikan yang berkelanjutan dan lestari. Data frekuensi panjang dan berat ikan pada Januari – Desember 2012 diperoleh dari perairan Tangerang dan sekitarnya berasal dari hasil tangkapan jaring cantrang. Sebaran frekuensi panjang ikan dipisahkan kedalam sebaran normal menggunakan metode Bhattacharya. Hubungan panjang-berat ikan swanggi jenis jantan dan betina bersifat allometrik negatif dan memiliki faktor kondisi yang baik (k=1,26). Rata-rata ukuran pertama kali tertangkap ikan swanggi (Lc=20,84 cm) lebih besar dibandingkan dengan ukuran pertama kali matang gonad (Lm=16,03 cm). Ikan swanggi dapat tumbuh hingga mencapai panjang infinitive (L∞) = 32,34 cm dengan laju pertumbuhan (K) sebesar 0,91 tahun-1 dan nilai dugaan umur teoritis pada saat panjang ikan sama dengan nol (t0) adalah 0,14 tahun-1. Panjang maksimal ikan swanggi diduga berumur 3,5 tahun dan rata-rata panjang ikan pertama kali matang gonad (Lm) diduga berumur 0,75 tahun. Mortalitas alami (M) ikan swanggi adalah 1,67, mortalitas karena penangkapan (F) 0,83, mortalitas total (Z) 2,50 dan tingkat eksploitasi (E) sebesar 0,33 yang berarti pemanfaatannya masih dapat ditingkatkan sekitar 34% dari keadaan saat ini. The purple spotted bigeye an economically and ecologically important fish and status in the waters have not been evaluated well. This research was aimed to understand the growth, age and mortality of the purple spotted bigeye. It was hoped that the results of this research can be contributed in sustainable fisheries management. The length frequency data and weight of fish in January - December 2012 was obtained from Tangerang and surrounding waters derived from trawl’s catch,. The size distribution of the fish was divided into normal distribution by using Battacharya Method. Length weight relationship of the male and female fish were negative allometric and has a good condition factor (K=1,26). The average length at first capture of the purple spotted bigeye (Lc = 20,84) was higher than the average length at first maturity (Lm=16,03). The purple spotted bigeye can grow into infinitive length of (L∞) = 32,34 cm with growth rate (K) of 0,91 year-1 and (t0) value of 0,14 year-1. The maximum length of the fish was predicted reach at age of 3,5 years with the average length of first maturity predicted reach at age 0,75 years. Natural mortality value (M) of the purple spotted bigeye was 1,67; fishing mortality (F) value was 0,83; total mortality value (Z) was 2,5 and exploitation rate (E) was at 0,33 which mean utilization can be improved about 34% from the current state.