Document Type

Report

Publication Date

2007

Keywords

Western equatorial Atlantic Ocean, Istiophorid billfish, Satellite tags, Hook comparisons

Abstract

A joint research project between Brazilian and U.S. scientists was initiated in 2004 to investigate the interaction of istiophorid billfishes with pelagic longline fisheries in the western equatorial South Atlantic Ocean. This project incorporates two general themes (1) an investigation into several aspects of pelagic longline operations by comparing catch results between circle and “J” style hooks, time-of-capture with hook time recorders, and by direct monitoring of pelagic longline gear behavior, and (2) an additional evaluation of billfish trophic ecology using a combination of satellite tag technology and traditional analyses (e.g., gut contents and ageing). Data obtained from this research will provide additional data for the evaluation of habitat-based stock assessment modeling efforts for billfish and other pelagic fish species.

Report Number

SCRS/2006/159

Publication Title

Collective Volume of Scientific Papers – International Commission for the Conservation of Atlantic Tunas (ICCAT)

Volume

60

Issue No.

5

ResearchID/ORCID ID

I-5396-2012

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