Bycatch estimates of coastal bottlenose dolphin (Tursiops Truncatus) in U.S. Mid-Atlantic gillnet fisheries for 1996 to 2000

Palka, Debra L., 1959-; Rossman, Marjorie C.

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Bycatch estimates of coastal bottlenose dolphin (Tursiops Truncatus) in U.S. Mid-Atlantic gillnet fisheries for 1996 to 2000

2001
By Palka, Debra L., 1959- ; Rossman, Marjorie C.
Series: Northeast Fisheries Science Center reference document ; 01-15

[PDF-1.53 MB]

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Details:

Alternative Title:

Bottlenose dolphin (Tursiops Truncatus) in U.S. Mid-Atlantic gillnet fisheries for 1996 to 2000
Personal Author:

Palka, Debra L., 1959- ; Rossman, Marjorie C.

Palka, Debra L., 1959- ; Rossman, Marjorie C. 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 assess the status of coastal bottlenose dolphins (Tursiops truncatus), estimates of population size and human-caused mortalities are required. The purpose of this manuscript is to estimate human-caused mortalities of coastal bottlenose dolphins due to bycatch in mid-Atlantic gillnet fisheries operating during 1996 to 2000 in oceanic waters (outside of bays) adjacent to New Jersey to North Carolina. During summer (May to October), three coastal bottlenose dolphin management units reside in these waters: the Northern migratory, Northern NC, and Southern NC management units, and during winter (November to April) there is one management unit: the mixed stock management unit. This management unit was divided into two sub-units, one off North Carolina and one off Virginia. This is because, during winter most coastal bottlenose dolphins are off North Carolina, however, a small percentage are off Virginia; thus, bycatch rates off these two states differ. The management units in waters north of Cape Hatteras extend12 km offshore, and those south of Cape Hatteras extend 27 km offshore. Total bycatch was defined as the product of the bycatch rate, takes per unit effort, estimated from a sample of the fishery, and the total effort from the fishery. Due to practical reasons, bycatch rates were defined as the ratio of observed dead coastal bottlenose dolphins to observed metric tons of fish landed. Consequently, total effort was total commercial gillnet landings"--Executive summary.
Content Notes:

by Debra L. Palka and Marjorie C. Rossman.

"November 2001."

"Web version posted November 23, 2001."

Also available online via the Northeast Fisheries Science Center home page.

Includes bibliographical references (page 24).
Keywords:

[+]

Bottlenose Dolphin Bycatches (Fisheries) Catch Effort Conservation Effect Of Human Beings On Fish Stock Assessment Gillnetting Marine Mammals Migration Mortality Prevention Research Statistical Methods
Series:

Northeast Fisheries Science Center reference document ; 01-15
Document Type:

Miscellaneous
Place as Subject:

Atlantic Coast (Middle Atlantic States)
Rights Information:

Public Domain
Compliance:

Library
Main Document Checksum:

[+]

urn:sha256:38cdcafdb546987963201a6e373f2999a7ac97a106ca31c538808d57b75535e5
Download URL:

https://repository.library.noaa.gov/view/noaa/3280/noaa_3280_DS1.pdf
File Type:

Document's home page

htm

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