Khwam samphan rawang parasit lae ahan kap khanat khong pla chakphan (Psettodes erumei).
1988
Jutamas Yossing
Investigation of the parasites of the arrowtooth flounder (Psettodes erumei) collected from Songkhla Fish Landing during the period November 1985 to October 1986 revealed that the fish were infected with ectoparasites and endoparasites. The ectoparasites comprised a species of copepod and 5 species of isopods whereas the endoparasites were 7 species of trematodes, 3 species of cestodes, 7 species of nematodes and a species of acanthocephalan. The nematodes Contracaecum larva type A were found to be the dominant species. Their highest abundance was recorded in April because the fish of larger sizes has been heavily caught in this month. Larger fish were infected with higher density of parasites when compared with the smaller ones. However, the types of parasites found in these two groups of fish did not differ significantly. The arrowtooth flounder was found to feed on 34 different types of prey items which were mainly fish. Similar prey items had been found in all size classes of the arrowtooth flounder and, thus showing the same type of parasitic infestation.
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