Estimated average annual bycatch of loggerhead sea turtles (Caretta caretta) in U.S. Mid-Atlantic bottom otter trawl gear, 1996-2004

Murray, Kimberly T.

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Estimated average annual bycatch of loggerhead sea turtles (Caretta caretta) in U.S. Mid-Atlantic bottom otter trawl gear, 1996-2004

2006
By Murray, Kimberly T.
Series: Northeast Fisheries Science Center reference document ; 06-19

[PDF-278.94 KB]

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Details:

Alternative Title:

Annual bycatch of loggerhead sea turtles (Caretta caretta) in US Mid-Atlantic bottom otter trawl gear, 1996-2004
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:

"During 1994-2004, fisheries observers documented interactions between bottom otter trawl gear and loggerhead (Caretta caretta), Kemp's ridley (Lepidochelys kempi) and leatherback (Dermochelys coriacea) turtles in the U.S. Mid-Atlantic region (i.e. south of 41°30'N/66°W to approximately 35°00'N/75°30'W). Most of these interactions were with loggerhead turtles, although Kemp's ridley and leatherback turtles were also observed in small numbers. Due to the low number of Kemp's ridley and leatherback interactions, bycatch rates and total mortality were only estimated for loggerhead turtles. Vessel Trip Reports (VTR) from fishermen operating bottom otter trawl gear in the Mid-Atlantic were used to expand predicted bycatch rates to total estimated bycatch. Due to reduced quality of VTR data in 1994 and 1995, bycatch is reported from 1996-2004 only. Significant factors affecting sea turtle bycatch were latitude zone, depth, sea surface temperature, and the use of a working Turtle Excluder Device (TED). A working TED is defined as one which is not clogged (e.g., with fish or debris). Predicted bycatch rates were stratified by the combination of significant variables. Estimated average annual bycatch of loggerhead turtles in Mid-Atlantic bottom otter trawl gear during 1996-2004 was 616 animals (C.V.=0.23, 95%C.I. over the 9 year period: 367-890)"--Document's home page.
Content Notes:

by Kimberley T. Murray.

Title from title page of PDF file.

"September 2006."

"Print publication date September 2006; web version posted September 11, 2006"--Document's home page at: http://www.nefsc.noaa.gov/nefsc/publications/crd/crd0619.

System requirements: Web browser; Adobe Acrobat Reader.

Mode of access: World Wide Web.

Includes bibliographical references.
Keywords:

[+]

Bycatches Bycatches (Fisheries) Equipment And Supplies Lepidochelys Kempii Loggerhead Turtle Marine Resources Conservation Mortality Prevention Sea Turtles Trawls And Trawling Turtle Excluder Devices
Series:

Northeast Fisheries Science Center reference document ; 06-19
Document Type:

Miscellaneous
Place as Subject:

Atlantic Coast (New England) ; Atlantic Coast (Middle Atlantic States)

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

Public Domain
Compliance:

Library
Main Document Checksum:

[+]

urn:sha256:77ec76f6da6a0fa8602aa1d94c34382b40b343ea5aac2efd376755f8d84cb0f0
Download URL:

https://repository.library.noaa.gov/view/noaa/3593/noaa_3593_DS1.pdf
File Type:

Online version in PDF via the NOAA Central Library (2nd ed. 2008)

htm

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