Comparison of collecting technique for taxonomic study of labrid fish
2011
Pasinee Worachananant(Kasetsart University, Bangkok (Thailand). Faculty of Science. Department of Environmental Science) E-mail:[email protected], [email protected] | Suchai Worachananant(Kasetsart University, Bangkok (Thailand). Faculty of Fisheries. Department of Marine Science)
Objective of this research is to compare the collecting technique for taxonomic study of Labrid fish in Thai coral reefs. SCUBA diving was conducted in four parts of Thai seas to collect the specimens. To study the capture technique efficiency for taxonomic identification of wrasses, four catch methods are tested, namely, a garland pin was modified and used as a small spear gun, a small mesh net, a scoop net and a hook with bait. The study revealed that the small mesh net was the most successful capture method in terms of specimens and number of individuals caught, following by scoop net, hook with bait and small spear gun, respectively. The small mesh net proved to be the most successful capture method for wrasses of all sizes, while the small spear gun and hook with bait are successful only for medium and large fish sizes. While we divided the species caught into those that were solitary or in pairs, and schooling. Again, the small mesh net appeared to be the most suitable equipment for both solitary and schooling wrasses following by scoop net, while the hook with bait and spear gun were effective only for solitary fish.
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