Fahrizal, Aziz (2017) Keanekaragaman Jenis Dan Status Sumberdaya Ikan Terumbu Ekonomis Penting Di Perairan Dobo Kepulauan Aru. Sarjana thesis, Universitas Brawijaya.
Abstract
Perairan Dobo Kepulauan Aru merupakan daerah yang memiliki potensi sumberdaya ikan ekonomis. Informasi mengenai keanekaragaman jenis ikan terumbu ekonomis dan status perikanan sumberdaya ikan terumbu dapat memberikan gambaran secara kualitatif tentang ikan ekonomis yang ada. Tujuan penelitian ini adalah untuk mengkaji struktur komunitas ikan terumbu ekonomis penting dan status perikanan sumberdaya ikan terumbu ekonomis penting dengan indikator CPUE, tren ukuran ikan, proporsi ikan juvenile, komposisi spesies, range collapse, dan endanggered species. Metode penelitian ini adalah observasi, wawancara, dan dokumentasi. Hasil penelitian terhadap struktur komunitas ikan menunjukkan bahwa nilai indeks keanekaragaman jenis ikan terumbu ekonomis penting sebesar 1.07 dengan dikategorikan rendah. Indeks keseragaman jenis ikan terumbu ekonomis penting sebesar 0.60 dengan dikategorikan komunitas labil. Indeks dominansi jenis ikan terumbu ekonomis penting sebesar 0.00089 dengan dikategorikan rendah. Dan untuk hasil penelitian terhadap satus sumberdaya ikan terumbu ekonomis penting menunjukan bahwa niilai CPUE dalam 4 tahun terakhir menunjukan penurunan sebesar kurang dari 25% per tahun. Nilai tren ukuran ikan menunjukan secara keseluruhan melalui indikator Lm dan Lc didapat nilai Lm<Lc , dengan dikategorikan ukuran rata-rata ikan yang ditangkap tergolong besar. Proporsi ikan yuwana (juvenile) terumbu ekonomis penting sbesar 11 % tergolong TKG 1 dan 50 % tergolong TKG 2 yang artinya proporsi ikan yuwana (juvenile) adalah banyak (30-60 %). Komposisi ikan terumbu ekonomis penting hasil tangkapan nelayan 79.01% target dan 20.98% non target, yang artinya komposisi spesies ikan terumbu ekonomis penting/target lebih banyak (>31% dari total volume). Endangeres spesies ikan terumbu ekonomis penting menunjukan bahwa dari hasil tangkapan nelayan tidak ada spesies ikan terumbu yang dikatakan krtitis,terancam, atau dilindungi. Range Collapse dari hasil analisis responden menunjukan bahwa 70.83% menyatakan lokasi penangkapan semakin sulit dan 29.16% lokasi penagkapan sama saja, yang artinya lokasi penangkapan ikan yang didapat oleh responden semakin sulit Berdasarkan hasil penelitian disarankan perlu dilakukan perencanaan pengelolaan ikan terumbu ekonomis penting di Perairan Dobo Kepulauan Aru , terutama pada indikator proporsi ikan yuwana (juvenile) dan indikator range collapse.
English Abstract
Aquatic Dobo Aru Islands is an area that has the potential of fish resources economically. Information on the diversity of species of economical reef fish and the status of reef fish resource fisheries can provide a qualitative picture of the existing economical fish. The purpose of this research is to assess community reefs structure fish economically important and the status of fishery resources reef fish economically important with an indicator cpue , the size of fish , the proportion of juvenile , composition species , range collapse , and endanggered species. Methods of this research are observation, interview, and documentation. The result of research on fish community structure shows that the index value of diversity of coral reef fish species is important is 1.07 with low categorized. Uniformity index of economical coral fish species is important as 0.60 with categorized as labile communities. The dominant index of economically important coral fish species is 0.00089 with low categorization. And for the results of research on the resource resources of the important coral reef fish shows that the value of CPUE in the last 4 years shows a decrease of less than 25% per year. Trend value of fish size indicated overall through indicator Lm and Lc obtained value Lm <Lc, with categorized average size of catching fish pertained big. The proportion of yuwana fish (juvenile) of important economic reefs is 11% belonging to TKG 1 and 50% are classified as TKG 2 which means that the proportion of juvenile fish is 30-60%. The composition of economically important reef fish is fisherman catch 79.01% target and 20.98% non target, which means the composition of economically important coral fish species / target more (> 31% of total volume). Endangeres of economically important reef fish species indicate that from fishing catches no reef fish species are said to be criticized, threatened or protected. Range Collapse from respondents analysis shows that 70.83% stated that fishing location is more difficult and 29.16% of catchment location is the same, which means that fishing location obtained by respondents more difficult. Based on the result of research, it is suggested to do the planning of fish management of important economical reef in Dobo Aru Islands waters, especially on yuwana fish proportion indicator (juvenile) and range collapse indicator.
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | SKR/FPR/2017/291/051705349 |
| Uncontrolled Keywords: | Struktur Komunitas, Status Sumberdaya Ikan, Ikan Ekonomis, Perairan Dobo Kepulauan Aru |
| Subjects: | 500 Natural sciences and mathematics > 597 Cold-blooded vertebrates |
| Divisions: | Fakultas Perikanan dan Ilmu Kelautan > Ilmu Kelautan |
| Depositing User: | Yusuf Dwi N. |
| Date Deposited: | 21 Jul 2017 03:15 |
| Last Modified: | 01 Dec 2020 11:38 |
| URI: | http://repository.ub.ac.id/id/eprint/473 |
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