Akses terbuka Jurnal SINTA 1
Spatial Distribution, Behaviour, and Biological Aspect of Albacore (Thunnus alalunga) Caught in Eastern Indian Ocean
ILMU KELAUTAN: Indonesian Journal of Marine Sciences · Vol. 22 No. 3 (2017) · hlm. 111–120
- ISSN
- 2406-7598, 0853-7291
- Terbit
- 2017-08-22
- Penerbit
- Marine Science Department Diponegoro University
- Bahasa
- eng
Abstrak
This study highlighted the occurrence of the Indonesian tuna longline fishery targeting albacore (Thunnus alalunga) caught in the Eastern Indian ocean. The data used in this study based on the Research Institute for Tuna Fisheries (RITF) observer program in Benoa. This paper presents the current information on biological aspect (size distribution and length-weight relationship) and fish behavior (swimming layer and feeding periodicity) of albacore. Total albacore samples of 3,152 were taken from scientific observer data from 2010-2013. The study area of albacore was between 0-33°S and 75-131°E. Albacore length distributed from 70-196 cmFL (median=93 cmFL, mode=100 cmFL, mean=92.12 cmFL) and dominated at size of 95 cmFL. The highest percentage length of albacore was >90 cm (L50) occured in the area between (30-35°S and 80-95°E) and (10-15°S and 120-125°E). The length weight relationship was determined to be W=0.0045 FL1.8211 (W in kg, FL in cm). The expected season to catch the ALB was from April to July with the peak season in June and July. The swimming layer of albacore based on minilogger data were distributed from at 118 to 341 m depth and mostly catch at depth of 156 m with temperature degree 18°C. The feeding periodicity of albacore’s are start from 7:45am to 17:59 pm, mostly active at 10 am to 11 am. The majority of ALB caught by Indonesian longliner was mature condition and negative allometric growth. The ALB peak season was in June-July and the best time to catch was 10 am to 11 am at depth of 156 m. Keywords: albacore, feeding periodicity, swimming layer, CPUE
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- National Research and Innovation Agency
- Udayana University
- Ministry of Marine Affairs and Fisheries
- IPB University
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- Organisasi sama
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Tampilkan sebagai tabel
| Rekan penulis | Organisasi | Artikel bersama |
|---|---|---|
| Raymon Rahmanov Zedta | IPB University | 5 |
| Hety Hartaty | National Research and Innovation Agency | 3 |
| Maya Agustina | Afiliasi tidak diketahui | 2 |
| Arief Wujdi | National Research and Innovation Agency | 2 |
| Suciadi Catur Nugroho | Afiliasi tidak diketahui | 2 |
| Masayu Rahmia Anwar Putri | National Research and Innovation Agency | 2 |
| Prawira Atmaja Tampubolon | National Research and Innovation Agency | 2 |
| Roy Kurniawan | National Research and Innovation Agency | 2 |
| Yesika Nanda Pramurdya | Udayana University | 2 |
| Rani Ekawaty | Udayana University | 2 |
| Gussasta Levi Arnenda | Afiliasi tidak diketahui | 2 |
| Maya Agustina | Afiliasi tidak diketahui | 2 |
| Ririk Kartika Sulistyaningsih | National Research and Innovation Agency | 1 |
| Putu Viby Indriani | Ministry of Marine Affairs and Fisheries | 1 |
| Daniar Kusumawati | National Research and Innovation Agency | 1 |
| Made Pharmawati | Udayana University | 1 |
| I Ketut Junitha | Udayana University | 1 |
| Umi Chodriyah | Afiliasi tidak diketahui | 1 |
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