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http://repository.ipb.ac.id/handle/123456789/116804
Title: | Dampak Perikanan Bubu dan Pancing terhadap Sumberdaya Ikan di Perairan Pulau Harapan, Kepulauan Seribu, Jakarta |
Other Titles: | The Impact of Trap and Fishing Lines on Fish Resources in the Waters of Harapan Island, Kepulauan Seribu, Jakarta |
Authors: | Taurusman, Am Azbas Wisudo, Sugeng Hari Dermawan, Dina Putri |
Issue Date: | Jan-2023 |
Publisher: | IPB University |
Abstract: | Penggunaan bubu dan pancing di Perairan Pulau Harapan Kepulauan Seribu
mengakibatkan ikan juvenile banyak tertangkap. Hal ini karena bubu tidak
memiliki celah pelolosan ikan dan pada pancing ukuran mata pancing terlalu
kecil. Intensitas penangkapan ikan yang semakin tinggi dapat berdampak negatif
bagi kelestarian stok ikan dan keseimbangan rantai makanan. Penelitian ini
bertujuan untuk mendeskripsikan konstruksi alat tangkap bubu dan kelompok
pancing (pancing ulur, pancing kotrek, dan pancing rawai) yang berbasis di Pulau
Harapan, Kepulauan Seribu; mendeskripsikan karakteristik hasil tangkapan bubu
dan kelompok pancing (spesies, ukuran layak tangkap, jumlah individu, dan
komposisi) di Perairan Kepulauan Seribu, khususnya yang didaratkan di Pulau
Harapan; dan mengestimasi dampak perikanan bubu dan kelompok pancing
terhadap ikan target dan keseimbangan rantai makanan. Hasil penelitian
menunjukkan bubu kawat memiliki panjang 137 cm, lebar 97 cm, dan bukaan
mulut 35 cm. Kail pancing yang digunakan adalah kail pancing nomor 7. Kapal
yang digunakan pada kedua alat tangkap ini yaitu kapal fiber. Nilai indeks
keragaman Shannon-Wiener tangkapan alat tangkap bubu sebesar 2,56 dan pada
pancing sebesar 0,77. Ikan yang memiliki nilai panjang pertama kali matang
gonad (Lm) sama dengan metadata fishbase yaitu ikan pisang-pisang (Lutjanus
vitta) dengan porsi ukuran layak tangkap sebesar 70%. Ikan kerapu lumpur
(Epinephelus coioides), Ikan tenggiri (Scomberomorus commerson), dan ikan
baronang garis (Siganus javus) memiliki nilai Lm penelitian lebih kecil dibanding
metadata fishbase. Tangkapan ikan didominasi tingkat trofik TL3 dan TL2. Secara
teori, jika hal ini terus berlanjut akan mengancam keberlanjutan sumberdaya ikan
pada semua tingkat trofik (rantai makanan). The use of traps and fishing lines in the waters of Harapan Island, Kepulauan Seribu resulted in many juvenile fish being caught. This is because the trap does not have a gap for the fish to escape and the hook size is too small on the fishing line. Higher fishing intensity have a negative impact on the sustainability of fish stocks and the balance of the food chain. This study aims to describe the construction of trap fishing gear and fishing lines (handline, hook and line, and longline) based on Harapan Island, Kepulauan Seribu; to describe the characteristics of traps and fishing lines catches (species, allowable catch size, number of individuals, and composition) in the Kepulauan Seribu waters, especially those landed on Harapan Island; and estimating the impact of trap fisheries and fishing lines group on target fish and the balance of the food chain. The results showed that the wire traps had a length of 137 cm, a width of 97 cm and a mouth opening of 35 cm. The fishers used a fishing hook with number of 7. The ship used for these two fishing gears was a fiber boat. The Shannon-Wiener diversity index value for trap catches was 2.56 and for fishing lines was 0.77. The fish with the length at first maturity (Lm) was similar with Fishbase metadata, i.e. Brownstripe red snapper (Lutjanus vitta) with an allowable catch size portion of 70%. Orange-spotted grouper (Epinephelus coioides), Narrow-barred Spanish mackerel (Scomberomorus commerson), and Streaked spinefoot (Siganus javus) were a smaller Lm values than Fishbase metadata. The fish catches were dominated by the catches of TL3 and TL2 trophic levels. In theory, if this continues it will threaten the sustainability of fish resources at the all trophic levels (trophic chain). |
URI: | http://repository.ipb.ac.id/handle/123456789/116804 |
Appears in Collections: | UT - Fisheries Resource Utilization |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
01 Watermark_Cover - SKRIPSI - (C44180003) DINA PUTRI DERMAWAN.pdf Restricted Access | Cover | 491.46 kB | Adobe PDF | View/Open |
Watermark - SKRIPSI - (C44180003) DINA PUTRI DERMAWAN.pdf Restricted Access | Fullteks | 1.68 MB | Adobe PDF | View/Open |
03 Watermark_Lampiran - SKRIPSI - (C44180003) DINA PUTRI DERMAWAN.pdf Restricted Access | Lampiran | 436.15 kB | Adobe PDF | View/Open |
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