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

SCIENTIFIC COMMITTEE NINTH REGULAR SESSION 6-14 August 2013 Pohnpei, Federated States of Micronesia To improve the estimation of species and size composition of the western and central Pacific purse seine fishery from observer based sampling of the catch WCPFC-SC9-2013/ ST-IP-04

WCPFC MANAGEMENT OBJECTIVES WORKSHOP Manila, Republic of the Philippines 28-29 November 2012 CHARACTERISTICS OF HISTORICAL POPULATION DYNAMICS OF TEMPERATE TUNAS IN THE NORTH PACIFIC AND IMPLICATIONS FOR MANAGEMENT

We examined long-term time series of stock status for the temperate tunas Pacific bluefin and albacore in the north Pacific, and characterized temporal changes in the stock status of both species through comparison with tropical tunas in the Western and Central Pacific. The temperate tunas appear to have historically experienced considerable fluctuation in stock status over a long period of tim...

SCIENTIFIC COMMITTEE NINTH REGULAR SESSION 6-14 August 2013 Pohnpei, Federated States of Micronesia Towards an Integrated Shark Conservation and Management Measure for the Western and Central Pacific Ocean WCPFC-SC9-2013/ EB-WP-08

An Indicator-based Analysis of Key Shark Species based on Data Held by SPC-OFP

Longline and purse seine logsheet and observer datasets held by SPC-OFP were examined to assess the stock status of eight WCPFC key shark species. Both longline and purse seine logsheet datasets suffer from missing shark catch records and a lack of species-specific recording, therefore the indicator analysis was based on observer data only. Shark data from the observer data sets are, however, a...

WCPFC MANAGEMENT OBJECTIVES WORKSHOP Manila, Republic of the Philippines 28-29 November 2012 CHARACTERISTICS OF HISTORICAL POPULATION DYNAMICS OF TEMPERATE TUNAS IN THE NORTH PACIFIC AND IMPLEMENTATION FOR MANAGEMENT

We examined long-term time-series of stock status of temperate tunas in the north Pacific: Pacific bluefin and albacore tunas, and characterized temporal changes of the both stock sizes by comparing with tropical tunas in the western and central Pacific. Generally, the temperate tunas historically experienced considerable fluctuations in stock status over a long period of time, while tropical t...