The movement parameters of yellow fin tuna schools were analyzed by means of scanning sonar in tuna purse seine capture situations in the Oman Sea in June 2010. There was significant difference in swimming speed and radial swimming direction between the escaped and captured schools. In escaped cases, the fish schools swam faster with mostly horizontal avoidance behavior to the sound stimuli fro...

The movement parameters of yellow fin tuna schools were analyzed by means of scanning sonar in tuna purse seine capture situations in the Oman Sea in June 2010. There was significant difference in swimming speed and radial swimming direction between the escaped and captured schools. In escaped cases, the fish schools swam faster with mostly horizontal avoidance behavior to the sound stimuli fro...

Satellite-linked buoys used by tropical tuna purse-seine vessels on drifting fish aggregating devices (DFADs) provide a continuous stream of information both the ocean characteristics and presence size aggregations associated with DFADs, enabling study pelagic communities. This unprecedented amount data is characterized ocean-scale coverage high spatial temporal resolutions, but also different ...

Analysis to the Fishing Business Feasibility Using Purse Seine in Lampulo Banda Aceh has been done from March June 2020. The objective of this analysis is know fishing business feasibility using purse seine Lampulo. Survey methods were used on 8 active boats and data collected by interviewing techniques. Data analyzed means investment criteria Net Present Value (NPV), Internal Rate Return (IRR)...

The main target species of Japanese purse seine operating in the tropical waters of the western Pacific Ocean is skipjack tuna (Katsuwonus pelamis) and yellowfin tuna (Thunnus albacares), which account for nearly 98 % of their total catch in weight and the remaining is bigeye tuna (Thunnus obesus) according to the catch based on logbook data. The recent study of the vertical distribution of the...

Industrial tuna fisheries operate in the Indian, Atlantic and Pacific Oceans, but concerns over sustainability and environmental impacts of these fisheries have resulted in increased scrutiny of how they are managed. An important but often overlooked factor in the success or failure of tuna fisheries management is the behaviour of fishers and fishing fleets. Uncertainty in how a fishing fleet w...

Penelitian untuk membandingkan nilai koefisien pengali variabel V dalam menentukan tonase kotor atau Gross Tonage (GT) menggunakan persamaan 3 sesuai ketentuan Permenhub nomor 8 tahun 2013 dilaksanakan di Pelabuhan Perikanan Pantai Larangan, Tegal Jawa Tengah. Sampel yang diambil sebanyak N=42 buah kapal ikan jenis purse seine berbagai ukuran antara 6-20 GT. difokuskan sebesar 0,25. Hasil penel...