A comparative prevalence study of ectoparasite in wild and cultured grouper before and after transportation
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Date
2007
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Universiti Malaysia Terengganu
Abstract
Twenty wild groupers (Cephalopolis boenak) and 20 cultured groupers (Epinephalus
tauvina) are used as the main research material in this study. All of these groupers
were examined before and after six hours of transportation. The result of this study
showed that the four groups of ectoparasite that infected both groups of fish were of
six species namely Ciliated Protozoa; Cryptocaryon irritans, Trichodina sp., and
Unidentified Ciliates, Monogenea; Pseudorhabdosynochus
sp., Leech;
Zeylanicobdella arugamensis and Parasitic Copepod; Caligus sp. Unidentified
Ciliates is the dominant species which infects both of the groups. Cultured groupers
showed an increase in ectoparasite after transportation. Overall comparison showed
that cultured groupers maintained the prevalence of ectoparasite before and after
transportation with 100% infections; mean intensity showed an increase from 7 .1
before to 3 7.4 after transportation compared to Wild Grouper with the prevalence of
ectoparasite; 65% infection before and 95% infection after transportation and mean
intensity; 3 .2 before and 5 .1 after transportation. Water quality was suspected as the
main factor for this increased of ectoparasite infection.
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Mohd Ihwan Zakariah, LP 27 FMSM 1 2007