Stock assessment of skipjack tuna in the western and central Pacific Ocean

SCIENTIFIC COMMITTEE SIXTH REGULAR SESSION 10–19 August 2010 Nuku’alofa, Tonga STOCK ASSESSMENT OF SKIPJACK TUNA IN THE WESTERN AND CENTRAL PACIFIC OCEAN

Species-specific Vertical Habitat Utilisation by Tunas in the Tropical Wcpo Wcpfc-sc9-2013/rp-pttp-03

2 Background The Pacific Tuna Tagging Programme (PTTP) is a joint research project being implemented by the Oceanic Fisheries Programme (OFP) of the Secretariat of the Pacific Community (SPC), the PNG National Fisheries Authority (NFA) and the members and participating non‐members of the Western and Central Pacific Fisheries Commission (WCPFC). The goal of the PTTP is to improve stock assessmen...

Inter-american Tropical Tuna Commission Scientific Working Group 2 Meeting Review of Stock Assessments

AGENDA 1. Welcome, introductions, consideration of agenda 2. Review of stock assessments: a. Methods b. Species composition sampling progress c. Results i. Yellowfin ii. Skipjack iii. Bigeye iv. Bluefin (paper only) v. Blue marlin vi. Albacore (paper only) vii. Others 3. Ecosystem modeling 4. Summary and recommendations 5. Other business 6. Adjournment DOCUMENTS A1 The surface fishery for tunas...

Inter-american Tropical Tuna Commission Third Meeting of the Scientific Working Group Review of Stock Assessments Chairman’s Report (revised)

A1 Draft: The fishery for tunas and tuna-like fishes in the eastern Pacific Ocean in 2001, and outlook for 2002 A2 Draft: Status of yellowfin tuna in the eastern Pacific Ocean in 2001 and outlook for 2002 A3 Draft: Status of skipjack tuna in the eastern Pacific Ocean in 2001 and outlook for 2002 A4 Draft: Status of bigeye tuna in the eastern Pacific Ocean in 2001 and outlook for 2002 A5 Draft: ...

The Large-Scale Deployment of Fish Aggregation Devices Alters Environmentally-Based Migratory Behavior of Skipjack Tuna in the Western Pacific Ocean

Fish aggregation devices (FADs) have been used extensively in the tuna purse seine fishery since the 1980s. This long-term modification of natural habitat has generated discussions as to whether FADs impact movement patterns of tuna species. We examined this question using data collected from the skipjack tuna (Katsuwonus pelamis) fishery. We used the longitudinal gravitational center of catch ...