Abundance and size distributions of Penaeus spp. shrimps in the northern and northwestern Gulf of Mexico during the 1982 closure period

Matthews, Geoffrey A. (Geoffrey Alan)

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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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Abundance and size distributions of Penaeus spp. shrimps in the northern and northwestern Gulf of Mexico during the 1982 closure period

1982
By Matthews, Geoffrey A. (Geoffrey Alan)
Series: NOAA technical memorandum NMFS-SEFC ; 109

[PDF-2.50 MB]

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Alternative Title:

Texas closure of the Gulf of Mexico fishery
Personal Author:

Matthews, Geoffrey A. (Geoffrey Alan)
Corporate Authors:

Southeast Fisheries Center (U.S.), Galveston Laboratory, ; Southeast Fisheries Center (U.S.)

Southeast Fisheries Center (U.S.), Galveston Laboratory, ; Southeast Fisheries Center (U.S.) 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:

Analyses of shrimp populations in shallow coastal waters of the Gulf of Mexico from Alabama to Texas during the Texas Closure (May 26-July 14, 1982) were made based on a collection of 299 trawl samples. Shrimp were more abundant off Texas than in the other areas, and were more abundant between 10 and 20 fathoms than at other depths. Catch per unit effort data from our samples indicated shrimp were 25% more abundant during the 1981 Texas Closure than during the 1982 closure. However, the substantial variability among catches caused this difference to not be statistically significant. Populations of brown Shrimp were examined through length frequency analyses. Mean lengths in each 5-fm depth zone showed the typical increases with increasing water depths. previous year class shrimp composed the vast majority of the shallow water (to 30 fm) populations, and new year class Shrimp accounted for a relatively small portion of these populations. New year class shrimp were not as abundant off Texas in 1982 as in 1981. A suggested revision of the sampling strategy is included to aid in completing management goals in the future.
Content Notes:

by Geoffrey A. Matthews.

"December 1982."

Also available online in PDF format via the NOAA Central Library.

Includes bibliographical references (leaves 16-17).
Keywords:

[+]

Shrimp fisheries
Series:

NOAA technical memorandum NMFS-SEFC ; 109
Document Type:

Technical Memorandum
Place as Subject:

Texas ; Mexico, Gulf of

Texas ; Mexico, Gulf of Less -
Rights Information:

Public Domain
Compliance:

Library
Main Document Checksum:

[+]

urn:sha256:9c004d066889b4af17cbab8719fadab46181b71efb984ad85ea0cb27c99c0272
Download URL:

https://repository.library.noaa.gov/view/noaa/5517/noaa_5517_DS1.pdf
File Type:

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Abundance and size distributions of Penaeus spp. shrimps in the northern and northwestern Gulf of Mexico during the 1982 closure period

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