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Yield, growth and mortality rate of the Thai river sprat, Clupeichthys aesarnensis, in Sirinthorn Reservoir, Thailand

Jutagate, T., De Silva, Sena and Mattson, N. 2003, Yield, growth and mortality rate of the Thai river sprat, Clupeichthys aesarnensis, in Sirinthorn Reservoir, Thailand, Fisheries management and ecology, vol. 10, no. 4, pp. 221-231, doi: 10.1046/j.1365-2400.2003.00338.x.

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Title Yield, growth and mortality rate of the Thai river sprat, Clupeichthys aesarnensis, in Sirinthorn Reservoir, Thailand
Author(s) Jutagate, T.
De Silva, SenaORCID iD for De Silva, Sena orcid.org/0000-0001-9381-2136
Mattson, N.
Journal name Fisheries management and ecology
Volume number 10
Issue number 4
Start page 221
End page 231
Publisher Blackwell Publishing Ltd.
Place of publication Oxford, England
Publication date 2003
ISSN 0969-997X
1365-2400
Keyword(s) clupeichthys aesarnensis
lift net fishery
natural and fishing mortality
von Bertalanffy growth functions
yield
yield per recruit
Summary The Thai river sprat, Clupeichthys aesarnensis Wongratana, is a clupeid with a short life span, and supports artisanal fisheries in a number of reservoirs in the Mekong Basin. The growth parameters, mortality rates and the status of the Thai river sprat in Sirinthorn Reservoir (28 800 ha), NE Thailand (15°N; 105°E), are presented. The fishery is based on lured lift-nets, operated 7–14 days in the new moon period, September to April each year. It was shown that the von Bertalanffy growth function (VBGF) model was Lt (mm) = 78.43[1 − exp{−0.211[t − (−0.7996)]}] and its growth conformed to an isometric pattern. Natural mortality rate (month−1) was 0.13 month−1. Total mortality rates ranged from 0.69 to 1.53 month−1 depending on the weather and the fishing season. Recruitment was continuous throughout the year but peaked in June and July. The yield per recruit model indicated that the exploitation rate of this fishery is probably too high.
Notes Published Online: 29 Jul 2003
Language eng
DOI 10.1046/j.1365-2400.2003.00338.x
Field of Research 070401 Aquaculture
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2003, Blackwell Publishing Ltd
Persistent URL http://hdl.handle.net/10536/DRO/DU:30002137

Document type: Journal Article
Collection: School of Ecology and Environment
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