Factors related to the decline and rebuilding of billfish stocks in the Atlantic and Indian oceans

Sharma, Rishi; Pons, Maite; Martin, Sarah; Kell, Laurie; Walter, John; Lauretta, Matthew; Schirripa, Michael

doi:10.1093/icesjms/fsx081

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i

Factors related to the decline and rebuilding of billfish stocks in the Atlantic and Indian oceans

2017
By Sharma, Rishi ; Pons, Maite ; Martin, Sarah ; ...
Source: ICES Journal of Marine Science, 75(2), 880-891

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Journal Title:

ICES Journal of Marine Science
Personal Author:

Sharma, Rishi ; Pons, Maite ; Martin, Sarah ; Kell, Laurie ; Walter, John ; ... More +

Sharma, Rishi ; Pons, Maite ; Martin, Sarah ; Kell, Laurie ; Walter, John ; Lauretta, Matthew ; Schirripa, Michael Less -
NOAA Program & Office:

NMFS (National Marine Fisheries Service) ; SEFSC (Southeast Fisheries Science Center)

NMFS (National Marine Fisheries Service) ; SEFSC (Southeast Fisheries Science Center) Less -
Description:

The article examines factors related to the decline and rebuilding of billfish stocks in the Atlantic and Indian oceans. Longline effort has declined over the last 10–15 years in both oceans. This decline in fishing pressure has led to the recovery of some stocks, but some species that are caught incidentally in industrial longline fisheries remain overexploited. Using a simple moving average technique on fishing mortality trajectories, we estimated a threshold effort size of 240 million hooks for the Atlantic Ocean and 364 million hooks for the Indian Ocean where stocks start experiencing overfishing. In addition, we highlight differences in the economic characteristics of the major fleets catching billfish in the two oceans and discuss how this may be associated with differences in management, enforcement, and stock rebuilding.
Keywords:

[+]

Aquatic Science Ecology Ecology, Evolution, Behavior And Systematics Oceanography
Source:

ICES Journal of Marine Science, 75(2), 880-891
DOI:

https://doi.org/10.1093/icesjms/fsx081
ISSN:

1054-3139;1095-9289;
Format:

PDF
Publisher:

Oxford University Press (OUP)
Document Type:

Journal Article
License:

https://creativecommons.org/publicdomain/zero/1.0/
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CC0 Public Domain
Rights Statement:

This work is written by US Government employees and is in the public domain in the US.
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Library
Main Document Checksum:

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urn:sha256:1263d7297c3852d93d86dea068c11a8e781473c2776b0cfff46e83dd92e0464f
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https://repository.library.noaa.gov/view/noaa/54641/noaa_54641_DS1.pdf
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Factors related to the decline and rebuilding of billfish stocks in the Atlantic and Indian oceans

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