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Journal of Fisheries and Aquatic Science
  Year: 2008 | Volume: 3 | Issue: 4 | Page No.: 213-227
DOI: 10.3923/jfas.2008.213.227
The Spatial Distribution of Fish Species Catches in Relation to Catchment and Habitat Features in the Floodplain Lot Fisheries of Tonle Sap Lake, Cambodia
Nguyen T. Hai Yen, Kengo Sunada, Satoru Oishi, Yasusi Sakamoto, Kou Ikejima and Tomaya Iwata

Abstract:
The Tonle Sap Lake area in the lower part of the Mekong River basin is the largest wetland in Southeast Asia. It contributes about 60% of the total inland fish catch of Cambodia. The floodplain fish production is an important contributor to the total catch, about 10-12 thousand tons annually from 344,308 hectares on 31 fishing lots during 1995-1999, with an average productivity of 30 kg ha-1. Mapping the spatial distributions of some dominant species including Channa micropeltes (19%), Channa marulius (10%), Trichogaster microlepis (8%), Pangasius hypophthalmus sp. (7%), Cyclocheilichthys enoplos (5%) would support the Cambodian fisheries managers to locate the proper protected area for each specific species. The positive correlations (p<0.05) between Channa micropeltes, Pangasius hypophthalmus, Cyclocheilichthys enoplos and Channa marulius and the permanent water area, the inundated shrub and/or grass lands indicated the habitat preference of these species. The positive or negative correlations (p<0.05) between species Channa micropeltes, Channa marulius, Pangasius hypophthalmus sp. and Hynicorhynchus sp. with inundated forest, grassland, agricultural land, population, cambisol, gleysol and/or fluvisol among 29 catchment parameters indicated that these species were sensitive in responses to those catchments parameters and would significantly support the catchment management strategy.
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How to cite this article:

Nguyen T. Hai Yen, Kengo Sunada, Satoru Oishi, Yasusi Sakamoto, Kou Ikejima and Tomaya Iwata, 2008. The Spatial Distribution of Fish Species Catches in Relation to Catchment and Habitat Features in the Floodplain Lot Fisheries of Tonle Sap Lake, Cambodia. Journal of Fisheries and Aquatic Science, 3: 213-227.

DOI: 10.3923/jfas.2008.213.227

URL: https://scialert.net/abstract/?doi=jfas.2008.213.227

 
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