The By-catch From the Artisanal Shrimp Trawl Fishery, Gulf of Paria, Trinidad

Maharaj, Vishwanie and Recksiek, Conrad (1991) The By-catch From the Artisanal Shrimp Trawl Fishery, Gulf of Paria, Trinidad. Marine Fisheries Review, 53(2), pp. 9-15.

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Abstract

Samples of shrimp trawl catches were collected from a commercial artisanal vessel fishing inside the 6-fm isobath in the Gulf of Paria, Trinidad. From August 1986 to May 1987, 34 late evening-early morning trawl trips were made and 97 hauls were sampled. Annual ratio estimates were 9 (SD 1.3) finfish:shrimp and 14.7 (SD 2.0) by-catch: shrimp, with the highest ratios observed August through December and the lowest from late January through May, the dry season. Extrapolation of ratios, using shrimp catch statistics, indicates that for 1986, 974,000 kg of finfish and 620,000 kg of crabs, Callinectes spp., were caught incidentally by artisanal shrimp trawlers fishing in the Gulf of Paria. Of this total incidental catch (1,594,000 kg), about 1,500,000 kg were discarded (94 percent). Four penaeid shrimp species are targeted: Penaeus schmitti, P. notialis, P. subtilis, and Xiphopenaeus kroyeri. Callinectes spp. were caught in large quantities from Augustto mid-January. Small (4-15 cm) pelagic and demersal species of little commercial importance dominated the finfish by-catch: Harengula spp., Cetengraulis edentulus, Chloroscombrus chrysurus, Eucinostomous spp., Diapterus rhombeus, and Cyclopsetta spp. Altogether, the monthly percentage of the species ranged from 70 to 85 percent of the total finfish by-catch.

Item Type: Article
Title: The By-catch From the Artisanal Shrimp Trawl Fishery, Gulf of Paria, Trinidad
Personal Creator/Author:
CreatorsEmail
Maharaj, Vishwanie
Recksiek, Conrad
Refereed: Yes
Journal or Publication Title: Marine Fisheries Review
Volume: 53
Number: 2
Page Range: pp. 9-15
Date: 1991
ISSN: 0090-1830
Issuing Agency: United States National Marine Fisheries Service
Subjects: Biology
Fisheries
Management
Item ID: 9921
Depositing User: Patti M. Marraro
Date Deposited: 22 Aug 2012 13:54
Last Modified: 22 Aug 2012 13:54
URI: http://aquaticcommons.org/id/eprint/9921

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