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RESPONS TINGKAH LAKU IKAN NILA MERAH (Oreochromis niloticus) PADA JARING ARAD (SMALL BOTTOM TRAWL) MODIFIKASI PADA UJI FLUME TANK (SKALA LABORATORIUM) Simeon, Benaya Meitasari
Journal of Fisheries Resources Utilization Management and Technology Vol 2, No 1: Januari, 2013
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (219.328 KB)

Fish have differential response on each part of fishing gear. Small bottom trawl was debated as irresponsible fishing gear always efforted as sustainable fishing gear by modification. Small bottom trawl miniatur with addittional part had modification composed by flapper as non-return device, square mesh selector, and square mesh codend. These modification needs laboratorium test related fish behavior, flapper efectivity, and squaremesh selectivity. Laboratorium test using flume tank usual used for fish behavior observation and fishing gear perform. Method that used was descriptive by case study. Descriptive was facts about fish behavior that obserrved and case study giving detail explaination about background, and spesific characters in this case was small bottom trawl modification. Result of this research were fish response for small bottom modification parts, escape level, and selectivity of square mesh selector. Flapper addition had 95% efectivity. Selectivity of squaremesh selector was shown on 4,7 for F 50 and 4,7 for SF. Selectivity of squaremesh codend was shown on 4,5 for F 50 and 6,4 for SF. Laboratorium test was hoped could giving delination aboout this modification fishing gear on the sea.

Reproductive attributes of the spot-tail shark, Carcharhinus sorrah collected from westernmost waters of Aceh, Indonesia Iqbal, Teuku Haris; Fajri, Ilham; Damora, Adrian; Lubis, Ahmad Fauzan; Simeon, Benaya Meitasari; Muttaqin, Efin; Booth, Hollie
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 13, No 3 (2024): DECEMBER 2024
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.13.3.42003

The spot-tail shark, Carcharhinus sorrah is a species of requiem shark found primarily in warm coastal waters of the Indo-Pacific region. This study aims to assess the length at first maturity and length distribution The spot-tail shark, C. sorrah collected from key fish landing sites in Aceh Province, Indonesia. Data collection occurred between March 2020 and October 2022 at three fishing ports: Banda Aceh (BA), Aceh Barat (AB), and Aceh Barat Daya (ABD). A One-way Analysis of Variance (ANOVA) was employed to analyze the total length (TL) of male and female fish from these sites. Results indicated an overall sex ratio of female to male fish at 1:1.67 ( = 45.19, p 0.001), with significant differences observed in sex ratios between BA and ABD ( = 6.72, p = 0.01; = 41.14, p 0.001), while AB showed no significant difference ( = 1.64, p = 0.20). Logistic regression analysis revealed variations in the length at which 50% of males and females reached maturity (Lm50): males from ABD, AB, and BA were 110.65 cm TL, 117.03 cm TL, and 152.65 cm TL, respectively, while females from BA, ABD, and AB were 107.30 cm TL, 113.94 cm TL, and 116.14 cm TL, respectively. Notably, males from ABD and females from BA matured earlier than those from other sites. In terms of length distribution, the average greatest with standard deviation (SD) length of male C. sorrah was 122.8737.87 cm TL in AB, followed by BA at 113.8013.10 cm TL and ABD at 107.8618.38 cm TL. This species is important for both ecological balance and fisheries, emphasizing the need for effective management and conservation efforts.Keywords:The spot-tail sharkCarcharhinus sorrahsex ratiolength at first maturitywesternmost Indonesia

Reproductive attributes of the spot-tail shark, Carcharhinus sorrah collected from westernmost waters of Aceh, Indonesia Iqbal, Teuku Haris; Fajri, Ilham; Damora, Adrian; Lubis, Ahmad Fauzan; Simeon, Benaya Meitasari; Muttaqin, Efin; Booth, Hollie
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 13, No 3 (2024): DECEMBER 2024
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.13.3.42003

The spot-tail shark, Carcharhinus sorrah is a species of requiem shark found primarily in warm coastal waters of the Indo-Pacific region. This study aims to assess the length at first maturity and length distribution The spot-tail shark, C. sorrah collected from key fish landing sites in Aceh Province, Indonesia. Data collection occurred between March 2020 and October 2022 at three fishing ports: Banda Aceh (BA), Aceh Barat (AB), and Aceh Barat Daya (ABD). A One-way Analysis of Variance (ANOVA) was employed to analyze the total length (TL) of male and female fish from these sites. Results indicated an overall sex ratio of female to male fish at 1:1.67 ( = 45.19, p 0.001), with significant differences observed in sex ratios between BA and ABD ( = 6.72, p = 0.01; = 41.14, p 0.001), while AB showed no significant difference ( = 1.64, p = 0.20). Logistic regression analysis revealed variations in the length at which 50% of males and females reached maturity (Lm50): males from ABD, AB, and BA were 110.65 cm TL, 117.03 cm TL, and 152.65 cm TL, respectively, while females from BA, ABD, and AB were 107.30 cm TL, 113.94 cm TL, and 116.14 cm TL, respectively. Notably, males from ABD and females from BA matured earlier than those from other sites. In terms of length distribution, the average greatest with standard deviation (SD) length of male C. sorrah was 122.8737.87 cm TL in AB, followed by BA at 113.8013.10 cm TL and ABD at 107.8618.38 cm TL. This species is important for both ecological balance and fisheries, emphasizing the need for effective management and conservation efforts.Keywords:The spot-tail sharkCarcharhinus sorrahsex ratiolength at first maturitywesternmost Indonesia

Studi Awal Perikanan Pari Kekeh (Rhynchobatus sp.) dan Pari Kikir (Glaucostegus sp.) di Perairan Utara Jawa Tengah Yuwandana, Dwi Putra; Agustina, Susan; Haqqi, Mahyuddin Bahi; Simeon, Benaya Meitasari
Akuatika Indonesia Vol 5, No 1 (2020): Jurnal Akuatika Indonesia (JAkI)
Publisher : Direktorat Sumber Daya Akademik dan Perpustakaan Universitas Padjadjaran, Grha. Kandaga (P

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/jaki.v5i1.25938

Pari kekeh dan pari kikir merupakan salah satu komoditas perikanan di Indonesia. Di sisi lain, kedua kelompok pari ini masuk ke dalam daftar merah International Union for Conservation of Nature and Natural Resources (IUCN) sebagai spesies ikan yang terancam punah karena populasinya terus menurun dan kerusakan habitat mengancam populasinya. Masuknya kedua pari ini ke dalam apendiks II Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) menuntut pengelolaan perikanan untuk menjamin kelangsungan populasinya di alam. Informasi mengenai perikanan pari kekeh dan pari kikir ini masih sangat minim, maka perlu kajian mengenai perikanan ini untuk dasar pengelolaan ke depan. Kajian ini bertujuan untuk mengetahui kondisi umum perikanan pari kekeh dan pari kikir di Jawa Tengah dan tangkapan rata-rata pari kekeh dan pari kikir per trip. Pengambilan data dilakukan pada bulan Mei–Juli 2019 di Pelabuhan Perikanan Pantai (PPP) Tegalsari Tegal, PPP Bajomulyo Pati dan PPP Tasik Agung Rembang. Metode pengambilan data yang dilakukan yaitu perlingkupan kegiatan perikanan pari kekeh dan pari kikir dan pencatatan aktivitas pendaratan. Analisis yang dilakukan yaitu analisis spesies dan rata-rata tangkapan per trip (CPUE). Selama penelitian diperoleh 202 trip kapal mendaratkan ikan pari kekeh dan pari kikir di tiga lokasi pendaratan. Ikan pari ini merupakan hasil tangkapan sampingan dari armada penangkapan ikan cantrang dengan ukuran 10–150 GT. Hasil analisis menunjukkan terdapat 6 spesies pari kekeh dan pari kikir yang didaratkan dan rata-rata hasil tangkapan pari kekeh dan pari kikir PPP Tegalsari sebesar 10,3 ekor/trip, PPP Bajomulyo sebesar 9,13 ekor/trip dan PPP Tasikagung sebesar 3,56 ekor/trip yang artinya jenis ikan ini cukup intensif tertangkap oleh armada penangkapan ikan cantrang.

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