Predicted bycatch of harbor porpoises under various alternatives to reduce bycatch in the US Northeast and Mid-Atlantic gillnet fisheries

Palka, Debra L., 1959-; Orphanides, Christopher

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Predicted bycatch of harbor porpoises under various alternatives to reduce bycatch in the US Northeast and Mid-Atlantic gillnet fisheries

2008
By Palka, Debra L., 1959- ; Orphanides, Christopher
Series: Northeast Fisheries Science Center reference document ; 08-14

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Personal Author:

Palka, Debra L., 1959- ; Orphanides, Christopher

Palka, Debra L., 1959- ; Orphanides, Christopher Less -
Corporate Authors:

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

NMFS (National Marine Fisheries Service) ; NEFSC (Northeast Fisheries Science Center)

NMFS (National Marine Fisheries Service) ; NEFSC (Northeast Fisheries Science Center) Less -
Description:

"To reduce the bycatch of harbor porpoises in the US Northeast and Mid-Atlantic commercial gillnet fisheries, five different management alternatives have been proposed in an Environmental Assessment to revise the Harbor Porpoise Take Reduction Plan (HPTRP). The purpose of this manuscript is to evaluate the expected impacts of each alternative on the harbor porpoise bycatch. For each alternative, a range of both expected bycatch rates (observed harbor porpoise takes per observed metric tons (mtons) of landings) and expected fishing effort (mtons landed) were predicted, and the total predicted harbor porpoise bycatch was derived as the product of these two metrics. Other than the status quo alternative, predicted bycatch estimates for all of the proposed alternatives were below the Potential Biological Removal (PBR) level. The preferred alternative (Alternative 4) in the post-trigger time period generated the lowest predicted annual bycatch (275 to 470 porpoises), while the status quo alternative (Alternative 1) generated the highest (1,063 animals per year)"--Abstract.
Content Notes:

by Debra L. Palka and Christopher D. Orphanides.

"August 2008."

Document available via the NEFSC reference document page: http://www.nefsc.noaa.gov/publications/crd/crd0814/

"Print publication date August 2008; web version posted July 22, 2009 (Take Reduction Plan published July 21, 2009)"--Publication's home page.

Mode of access: World Wide Web.

System requirements: Internet browser; Adobe Acrobat Reader.

Includes bibliographical references (page 24).
Keywords:

[+]

Bycatches Bycatches (Fisheries) Conservation Fishery Management Fishery Policy Forecasting Gillnetting Harbor Porpoise Management Marine Mammals Marine Resources Conservation
Series:

Northeast Fisheries Science Center reference document ; 08-14
Document Type:

Miscellaneous
Place as Subject:

Atlantic Coast (Middle Atlantic States) ; United States

Atlantic Coast (Middle Atlantic States) ; United States Less -
Rights Information:

Public Domain
Compliance:

Library
Main Document Checksum:

[+]

urn:sha256:3dbb36f02f9af43433b00d622ce10ba27e61f86b5b7d8a045c0906edbcd92e72
Download URL:

https://repository.library.noaa.gov/view/noaa/3685/noaa_3685_DS1.pdf
File Type:

Document's home page

htm

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