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All Journal Bawal : Widya Riset Perikanan Tangkap Buletin Ilmiah Marina : Sosial Ekonomi Kelautan dan Perikanan Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan
Booth, Hollie
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Education Engineering Environmental Science

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Insentif dan Disinsentif Ekonomi pada Perlindungan Hiu Martil (Sphyrna spp.) sebagai Tangkapan Sampingan di Aceh Jaya Rohmah, Lailia Nur; Yulianto, Gatot; Kamal, Mohammad Mukhlis; Adrianto, Luky; Booth, Hollie
Buletin Ilmiah Marina Sosial Ekonomi Kelautan dan Perikanan Vol 9, No 2 (2023): Desember 2023
Publisher : Research Center for Marine and Fisheries Socio-Economic

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/marina.v9i2.12547

Abstract

Hiu martil (Sphyrna spp.) memiliki peluang tertangkap dan tingkat eksploitasi yang tinggi karena bentuk kepala yang unik dan perilaku agregasi remaja di perairan pesisir dangkal. Hiu yang didaratkan di PPI Rigaih umumnya merupakan bycatch, berukuran kecil dan belum dewasa/anakan.. Penelitian ini bertujuan untuk menganalisis karakteristik nelayan di Aceh Jaya dan mengestimasi besaran insentif maupun disinsentif ekonomi sebagai upaya perlindungan hiu martil di Aceh Jaya. Metode pengumpulan data yang digunakan adalah survei. Pengambilan data primer dilakukan dengan wawancara terstruktur kepada nelayan kecil di Aceh Jaya, pada bulan April sampai dengan Agustus 2022. Responden berjumlah 48 orang yang dipilih menggunakan metode simple random sampling. Metode analisis penghitungan insentif nelayan menggunakan Contingent Valuation Methods (CVM). Hasil riset menunjukkan bahwa karakteristik nelayan di Aceh Jaya adalah nelayan kecil yang beroperasi menggunakan kapal kayu berukuran 5-10 gross tone dengan durasi penangkapan ikan adalah one-day fishing dan ada juga yang 2-5 hari/trip. Estimasi besaran denda (disinsentif) yang bersedia dibayarkan oleh nelayan apabila masih melakukan penangkapan hiu martil (WTP) rata-rata sebesar Rp259.375,00/trip. Kesediaan membayar denda dipengaruhi oleh usia, pendidikan, pendapatan, dan jumlah anak. Insentif ekonomi berupa kesediaan nelayan menerima kompensasi sebagai pengganti aktivitas penangkapan hiu martil (WTA) dengan estimasi rata-rata sebesar Rp434.895,83/trip. Variabel yang berpengaruh adalah usia, pendidikan, lama trip dan pendapatan Title: Economic Incentive and Disincentiveson Protection of Hammerhead Sharks (Sphyrna spp.) as By-catch in Aceh Jaya Hammerhead sharks (Sphyrna spp.) have a high chance of being caught due to their unique head shape and juvenile aggregation behavior in shallow coastal waters whose areas overlap with capture fisheries with high levels of exploitation. These Sharks have landed at the fish landing port Rigaih of Aceh Jaya Regency, which is generally by-catch with small size at the immature/pre-adult stage. This study aims to analyze the characteristics of hammerhead fishermen in Aceh Jaya and estimate the amount of economic incentives in the form of fines to protect hammerhead sharks in Aceh Jaya. The descriptive survey was used as the data collection method in this research. The deep interview was conducted to collect primary data from fishermen from April to August 2022. This research calculates the fisherman’s incentive using contingent valuation method (CVM) analysis. A total of 48 respondents were selected using the simple random sampling method. The findings show that the characteristics of fishermen in Aceh Jaya are small fisheries that operate using 5-10 gross-tone wooden boats with one-day fishing duration and some 2-5 days/trip. The estimated disincentives fishermen will pay if they still catch hammerhead sharks (WTP) is an average of IDR 259,375.00/trip. Willingness to pay is influenced by age, education, income, and number of children. Economic incentives include fishermen’s willingness to receive compensation instead of fishing for hammerhead sharks (WTA), with an average estimated IDR 434,895.83/trip. Influential variables are age, education, length of trip, and income.
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 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

Abstract

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
KARAKTERISTIK BIOLOGI IKAN PARI KEKEH (Rhynchobatus spp.) SEBAGAI TANGKAPAN SAMPINGAN DI PERAIRAN ACEH JAYA Hermansyah, Rizky Fajar; Taryono, Taryono; Zairion, Zairion; Adrianto, Luky; Zulfikar, Andi; Booth, Hollie; Ichsan, Muhammad
BAWAL Widya Riset Perikanan Tangkap Vol 14, No 2 (2022): (Agustus) 2022
Publisher : Politeknik Kelautan dan Perikanan Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/bawal.14.2.2022.95-103

Abstract

Ikan pari kekeh (Rhynchobatus spp.) adalah salah satu jenis ikan yang dilindungi dan memiliki nilai ekonomis tinggi. Tingginya harga jual pari kekeh berdampak pada meningkatnya usaha tangkap serta kerusakan habitat pari kekeh yang hidup berasosiasi dengan ikan target nelayan. Informasi terkait aspek biologi sangat berguna bagi pembuat kebijakan dalam memanfaatkan sumberdaya yang berkelanjutan. Tujuan penelitian ini adalah memberikan informasi mengenai nisbah jenis kelamin ikan yang tertangkap, sebaran ukuran panjang, dan potensi sumber daya ikan pari kekeh (Rhynchobatus spp.) di perairan Aceh Jaya. Pengumpulan data pendaratan pari kekeh meliputi jenis kelamin, panjang total dan jumlah trip melaut pada periode tahun 2017-2021. Jumlah tangkapan total pari kekeh yang didaratkan sebanyak 191 ekor yang terdiri dari Spesies Rhynchobatus australiae sebanyak 133 ekor (69,63%), Rhynchobatus laevis sebanyak 55 ekor (28,80%) dan Rhynchobatus springeri sebanyak 3 ekor (1,57%). Ukuran pari kekeh yang tertangkap didominasi oleh ikan muda (immature), yaitu berada pada kelas panjang 65-86cm. Nisbah jenis kelamin ikan jantan dan betina 1:2,41 menunjukan hasil yang tidak seimbang. CPUE menunjukan nilai rata-rata yang fluktuatif, hubungan hasil tangkapan dengan upaya yaitu positif signifikan dengan persamaan linear y = 0,6687x + 1,6338 dengan R2 =0,9706 atau r = 0,9852 yang dapat diartikan bahwa setiap peningkatan upaya berbanding lurus dengan peluang pari kekeh yang tertangkap.Wedgefish (Rhynchobatus spp.) is one of the protected fish species that has high economic value. The high selling price of the wedgefish has an impact on increasing fishing efforts and damage to the habitat of the wedgefish that live in association with the target fish of fishermen. Information related to biological aspects is beneficial for policymakers in utilizing sustainable resources. The purpose of this study was to provide information on the sex ratio of wedgefish, length distribution, and potential resources of the wedgefish in the waters of Aceh Jaya. The wedgefish landing data collection included sex, total length, and the number of fishing trips from 2017 to 2021. The total number of wedgefish obtained was 191. The number consisted of 133 fishes from the Rhynchobatus australiae (69.63%), 55 fishes from Rhynchobatus laevis (28.80%), and 3 fishes from Rhynchobatus springeri (1.57%). Most of the wedgefish caught were immature fish with a size of 65-86 cmTL. The sex ratio of male and female fish was 1:2.41, showing unbalanced condition between males and females. CPUE aspect showed a fluctuating average value. The relation between the catch and effort was positive and significant with alinear equation of y = 0.6687x + 1.6338 with R2 = 0.9706 or r = 0.9852, meaning that increasing fishing effort was proportional to the possibility of a wedgefish being caught.
Co-Authors . Zairion Adrian Damora Ahmad Fauzan Lubis Benaya Meitasari Simeon Efin Muttaqin, Efin Gatot Yulianto Hermansyah, Rizky Fajar Ilham Fajri, Ilham Iqbal, Teuku Haris Luky Adrianto Mohammad Mukhlis Kamal Muhammad Ichsan Rohmah, Lailia Nur Taryono, Taryono Zulfikar, Andi