Vulnerability of the Oceanic Whitetip Shark to Pelagic Longline Fisheries

Vulnerability of the Oceanic Whitetip Shark to Pelagic Longline Fisheries

A combination of fisheries dependent and independent data was used to assess the vulnerability of the oceanic whitetip shark to pelagic longline fisheries. The Brazilian tuna longline fleet, operating in the equatorial and southwestern Atlantic, is used as a case study. Fisheries dependent data include information from logbooks (from 1999 to 2011) and on-board observers (2004 to 2010), totaling...

Shark Depredation and Unwanted Bycatch in Pelagic Longline Fisheries

Vulnerability of oceanic sharks as pelagic longline bycatch

Bycatch (the unintentional catch of non-target species or sizes) is consistently ranked as one of the greatest threats to marine fish populations; yet species-specific rates of bycatch survival are rarely considered in risk assessments. Regulations often require that bycatch of threatened species be released; but, if animals are already dead, their release serves no conservation purpose. We exa...

SCIENTIFIC COMMITTEE SEVENTH REGULAR SESSION 9-17 August 2011 Pohnpei, Federated States of Micronesia Analyses of Catch Data for Oceanic Whitetip and Silky Sharks reported by Fishery

This report presents descriptive statistical summaries and generalized linear model (GLM) analyses of catch data for oceanic whitetip shark Carcharhinus longimanus and silky shark C. falciformis in the Hawaii-based pelagic longline fishery. This paper is a collaborative effort begun at the Secretariat of the Pacific Community (SPC) in New Caledonia and completed at the NOAA Fisheries Pacific Is...

A review of shark bycatch mitigation in tuna longline fisheries

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