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All Journal BERITA BIOLOGI Jurnal Penelitian Perikanan Indonesia
Freddy Supriyadi
Balai Penelitian Perikanan Perairan Umum
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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PARAMETER POPULASI IKAN BETOK (Anabas testudineus (BLOCH, 1792)) DI EKOSISTEM PAPARAN BANJIR SUNGAI MUSI, Lubuk Lampam Syarifah Nurdawati; Zulkarnaen Fahmi; Freddy Supriyadi
BERITA BIOLOGI Vol 18, No 1 (2019)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v18i1.3107

Abstract

Anabas testudineus Bloch, 1792 is economically important fish species found in Lubuk Lampam floodplains of Musi River. Fishing activities that take place throughout the year can affect reproduction patterns and recruitment (new additions) of fish. This study aims to evaluate several parameters of betok fish populations that can be used as input for fish resource management policies in floodplains of Musi river. A total of 3271 samples of betok fish caught by fishermen from March to November 2011 were collected to obtain data on fish length and weight. Growth parameters (L∞, K, Z dan M) were calculated using FiSAT II based on the length frequency distribution of fish. The values of L∞ and K were obtained at 204.75 mm and 0.24 / year respectively while the maximum age of fish was estimated to be 4.36 years. The total mortality (Z) and natural mortality (M) of betok fish is 0.99 / year and 0.42 / year, Fishing mortality (0.56/year). The exploitation rate (0.57) was slightly lower than the predicted value (Emax= 0.69) indicating that Anabas  testudineus was near fully exploited in the Lubuk Lampam floodplain ecosystem.  
PERBEDAAN WAKTU PENGOPERASIAN TERHADAP HASIL TANGKAPAN BAGAN TANCAP DI PERAIRAN SUNGSANG, SUMATERA SELATAN Fauziyah Fauziyah; Freddy Supriyadi; Khairul Saleh; Hadi Hadi
Jurnal Penelitian Perikanan Indonesia Vol 19, No 4 (2013): (Desember 2013)
Publisher : Pusat Riset Perikanan, BRSDM KP.

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (77.881 KB) | DOI: 10.15578/jppi.19.4.2013.187-194

Abstract

Di perairan Sungsang Sumatera Selatan, target utama penangkapan dengan alat tangkap bagan adalah ikan teri (Stolephorus sp) dan ikan lainnya sebagai hasil sampingan. Pada umumnya, bagan tancap dioperasikan oleh nelayan setempat sebelum tengah malam sampai menjelang pagi. Berdasarkan fakta tersebut, pengkajian waktu pengoperasian yang optimum terhadap hasil tangkapan bagan tancap perlu dilakukan. Tujuan penelitian adalah untuk menganalisis perbedaan waktu operasi dan waktu operasi optimum terhadap hasil tangkapan bagan tancap. Penelitian ini dilaksanakan pada kondisi bulan gelap pada bulan Mei 2012 dengan metode experimental fishing dan model Rencana Arah Lengkap (RAL) dengan perlakuan perbedaan waktu operasi yaitu sebelum tengah malam  (21.00-23.59 WIB), saat tengah malam (00.00-02.59WIB), dan setelah tengah malam (03.00-05.59 WIB).  Empat bagan tancap dioperasikan dengan masing-masing 3 kali trip. Hasil penelitian menunjukkan bahwa waktu operasi penangkapan bagan tancap berpengaruh nyata terhadap hasil tangkapan, dan  waktu pengoperasian yang optimum bagan tancap adalah pada saat tengah malam (00.00-02.59 WIB). In Sungsang estuary of South Sumatera, the target species of fixed lift nets is anchovies (Stolephorus sp) and the others species are classified as by catch. Generally, the fixed lift net is operated by local fishermen before midnight until early morning. Based on this fact, a study on the optimum operation time of the fixed lift nets is necessary. The research objectives are  to analyze the operating time, and the optimum operating time of the fixed lift net in Sungsang estuary. The research was conducted in May 2012 using experimental fishing methods and completely random sampling. The differences in operating time i.e before midnight (21:00 to 23:59), around midnight (00:00 to 02:59), and after midnight (03:00 to 5:59) were used as tratments. The four observed fixed lift net were operated for 3 days (3 trips). Data were analyzed using SPSS 17 software for Windows. The results indicated that the operating time significantly affected the catchand the optimum operating time of fixed lift net in Sungsang Estuary was around midnight (00:00 to 02:59).
Co-Authors Fauziyah Fauziyah Hadi Hadi Khairul Saleh Syarifah Nurdawati Zulkarnaen Fahmi