Estimated loggerhead and unidentified hard-shelled turtle interactions in Mid-Atlantic gillnet gear, 2007-2011

Murray, Kimberly T.

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The NOAA IR serves as an archival repository of NOAA-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by NOAA or funded partners. As a repository, the NOAA IR retains documents in their original published format to ensure public access to scientific information.

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Estimated loggerhead and unidentified hard-shelled turtle interactions in Mid-Atlantic gillnet gear, 2007-2011

2013
By Murray, Kimberly T.
Series: NOAA technical memorandum NMFS-NE ; 225

[PDF-827.23 KB]

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Details:

Personal Author:

Murray, Kimberly T.
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:

"The total number of interactions between loggerhead and hard-shelled (loggerheads plus unidentified hard-shelled) turtle s and commercial gillnet gear in the Mid-Atlantic from 2007-2011 was estimated by using data collected by Northeast Fisheries Observer Program (NEFOP) observers and at-sea monitors (ASM). A generalized additive model (GAM) was used to estimate interaction rates (defined as the number of turtles per ton of fish landed), which were then applied to commercial Vessel Trip Report (VTR) data to estimate the total number of interactions. From 2007-2011, an annual average of 95 hard-shelled turtles (CV = 0.21, 95% CI over all years: 60-138) and 89 loggerheads (equivalent to 9 adults) were estimated to have interacted with gillnet gear. An estimated 52 annual loggerhead interactions (equivalent to 5 adults) were considered to result in mortality. Gillnet trips landing monkfish had the highest estimated number of loggerhead and hard -shelled turtle interactions during 2007-2011. Estimated rates and interactions have decreased relative to those from 1996-2006"--Abstract.
Content Notes:

Kimberly T. Murrary.

"May 2013."

"Web version posted November 26, 2013"--Document home page http://www.nefsc.noaa.gov/publications/tm/tm225/

System requirements: Adobe Acrobat Reader.

Includes bibliographical references (pages 11-12).
Keywords:

[+]

Conservation Effect Of Fishing On Environmental Aspects Gillnetting Loggerhead Turtle Mortality Sea Turtles
Series:

NOAA technical memorandum NMFS-NE ; 225
Document Type:

Technical Memorandum
Place as Subject:

Atlantic Ocean
Rights Information:

Public Domain
Compliance:

Library
Main Document Checksum:

[+]

urn:sha256:7df199ca77195b5c3b1fe22ca706aa83f3105de1446243f4eb7e7866851b3683
Download URL:

https://repository.library.noaa.gov/view/noaa/4562/noaa_4562_DS1.pdf
File Type:

Document's home page

htm

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