Results of bottom trawl surveys carried out in Vietnamese waters (20-200 m) in 1996-1997

Dang, V.T. and Tran, D. and Nielsen, R. and Riget, F. (2002) Results of bottom trawl surveys carried out in Vietnamese waters (20-200 m) in 1996-1997. Naga, the ICLARM Quarterly, 25(1), pp. 15-18.

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Abstract

Bottom trawl surveys were conducted in the southwest monsoon season in 1996 (survey 1) and in the northeast monsoon season in 1996-97 (survey 2) throughout Vietnamese waters. The surveys mainly covered the depth zone 50-200 m but in the northeast monsoon season the depth zone 20-50 m was included in the northern and southern areas. Overall, 273 trawl hauls were conducted. The total biomass for Vietnamese waters in the depth zone 20-200 m was estimated at 700 000 t . Biomass estimates are given for the most abundant species. A relatively higher mean catch-per-unit effort (CPUE) was obtained from survey 2 than from survey 1 and in partcular at depth ranges 50-100 and 100-200 m in south Vietnam. Overall, the dominant families were Monacanthidae (34%), Carangidae (15%), Trichiuridae (9%) and Synodontidae (6%).

Item Type: Article
Title: Results of bottom trawl surveys carried out in Vietnamese waters (20-200 m) in 1996-1997
Personal Creator/Author:
CreatorsEmail
Dang, V.T.
Tran, D.
Nielsen, R.
Riget, F.
Journal or Publication Title: Naga, the ICLARM Quarterly
Volume: 25
Number: 1
Page Range: pp. 15-18
Date: 2002
ISSN: 0116-290X
Issuing Agency: WorldFish Center
Uncontrolled Keywords: Biomass; Catch composition; Catch/effort; Fishery surveys; Vietnam
Subjects: Fisheries
Item ID: 9145
Depositing User: Mr William Ko
Date Deposited: 27 Nov 2012 07:37
Last Modified: 27 Nov 2012 07:37
URI: http://aquaticcommons.org/id/eprint/9145

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