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Post‐haemorrhagic anaemia in sea bass, Dicentrarchus labrax (L.), caused by blood feeding of Ceratothoa oestroides (Isopoda: Cymothoidae)
Author(s) -
Horton T,
Okamura B
Publication year - 2003
Publication title -
journal of fish diseases
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 85
eISSN - 1365-2761
pISSN - 0140-7775
DOI - 10.1046/j.1365-2761.2003.00476.x
Subject(s) - dicentrarchus , sea bass , biology , isopoda , fishery , fish <actinopterygii> , zoology , crustacean
The effects of the fish parasitic isopod, Ceratothoa oestroides (Risso), on haematological parameters of its cage‐cultured sea bass host, Dicentrarchus labrax (L.), were studied. Analyses of blood parameters (cell counts, haemoglobin content and haematocrit) were carried out on parasitized and unparasitized sea bass from a fish farm in Turkey. Parasitized fish had significantly lowered erythrocyte counts, haematocrit and haemoglobin values and significantly increased leucocyte counts. Blood feeding by C. oestroides thus produces a post‐haemorrhagic anaemia and the fish appear to mount an immune response to the presence of parasites.