Review of potential mitigation measures to reduce fishing-related mortality on silky and oceanic whitetip sharks (Project 101)

Bigelow, Keith; Carvalho, Felipe

doi:10.25923/10gt-as86

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Review of potential mitigation measures to reduce fishing-related mortality on silky and oceanic whitetip sharks (Project 101)

[PDF-1.68 MB]

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Personal Author:

Bigelow, Keith ; Carvalho, Felipe

Bigelow, Keith ; Carvalho, Felipe Less -
Corporate Authors:

Pacific Islands Fisheries Science Center (U.S.)
NOAA Program & Office:

NMFS (National Marine Fisheries Service) ; PIFSC (Pacific Islands Fisheries Science Center)

NMFS (National Marine Fisheries Service) ; PIFSC (Pacific Islands Fisheries Science Center) Less -
Description:

The paper develops and applies a model for how silky (Carcharhinus falciformis) and oceanic whitetip (C.longimanus) shark might interact with longline gear in the Western and Central Pacific Ocean (WCPO) and potential reductions in mortality with two different management measures: 1) the removal of shark lines and 2) the transition from branchlines with wire leaders to monofilament leaders. Using Regional Observer Program (ROP) data, the study compared absolute values of total catch and total mortality across scenarios and the relative change in fishing-related mortality from the status-quo option given a conversion from wire to monofilament leaders, no shark lines used, and both a conversion to monofilament leaders and no shark lines.
Keywords:

[+]

Effect Of Fishing On Mortality Oceanic Whitetip Shark Prevention Silky Shark WCPFC-SC17-2021/EB-WP-01
Series:

PIFSC working paper; WP-22-002
DOI:

https://doi.org/10.25923/10gt-as86
Document Type:

Working Paper
Place as Subject:

Pacific Ocean
Rights Information:

Public Domain
Compliance:

Submitted
Main Document Checksum:

[+]

urn:sha-512:c49c10a5f8e51c8de57b0f63a4cf714c2782f74a5575ca040f694e664baeed0746813099b6cfce13952f3fec222187ae75dd56e775850b9731c65b2cdf4e48b9
Download URL:

https://repository.library.noaa.gov/view/noaa/42470/noaa_42470_DS1.pdf
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Review of potential mitigation measures to reduce fishing-related mortality on silky and oceanic whitetip sharks (Project 101)

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