A morphological study (SEM) on a parasitic marine isopod, Cymothoa spinipalpa (Isopoda: Cymothoidae)

Document Type : Original Article

Authors

1 Animal Health Research Institute (Matrouh branch), Agricultural Research Center, Dokki, Giza, Egypt.

2 Central Laboratory for Aquaculture Research El-Abbassa – Agricultural Research Center, Egypt

Abstract

The incidence of parasitic marine isopods among wild 100 Argyrops filamentosus fish was studied. Specimens were subjected to clinical, postmortem and parasitological examinations for detection of isopod infestations. The detected parasite was Cymothoa spinipalpa. The infestation rate was 9%, one per fish. Cymothoa spinipalpa was observed in the gill chamber and buccal cavity of the host. Slight protrusion of gill cover (operculum), atrophy and haemorrhage at site of attachment were noticed. The morphological characteristics of this species were described in details using light and scanning electron microscopy and discussed. 

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