Occurrence of trypanosomiasis in net‐cage cultured groupers (Cromileptes altivelis and Epinephelus fuscoguttatus) in Nanshan port of Sanya,Hainan province,China |
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Authors: | Ming Wang Shuai Yan Yu Wang Zhao‐Rong Lun Ting‐Bao Yang |
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Institution: | State Key Laboratory of Biocontrol and Center for Parasitic Organisms, School of Life Sciences, Sun Yat‐sen University, Guangzhou, China |
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Abstract: | In the present study, reported was an unidentified trypanosome that caused massive mortalities of cultured humpback grouper, Cromileptes altivelis (Valenciennes, 1828) and brown‐marbled grouper, Epinephelus fuscoguttatus (Forsskål, 1775) in the net‐cages in Sanya, China, and some general pathological features of E. fuscoguttatus after experimental infection of the trypanosome. Before dying in the net cages of diseased fish, listlessness and anorexia were the observable symptoms. The blood of the diseased fish was light‐coloured in comparison with that of healthy one. E. fuscoguttatus experimentally infected with this trypanosome are with different degrees of engorgement in gill lamella, liver, spleen and kidney. Tissue lesion and necrosis were observed in liver and spleen of diseased fish. |
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Keywords: |
Cromileptes altivelis
Epinephelus fuscoguttatus
trypanosome pathology |
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