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The histopathology of Stephanochasmus baccatus Nicoll, 1907 in the digestive gland of Buccinum undatum (L.)
Author(s) -
SOMMERVILLE CHRISTINA
Publication year - 1978
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 - 10.1111/j.1365-2761.1978.tb00024.x
Subject(s) - biology , histopathology , lesion , parasite hosting , larva , pathology , zoology , pathogenesis , mollusca , anatomy , ecology , immunology , medicine , world wide web , computer science
. Samples of Buccinum undatum (L.), a marine carnivorous prosobranch, from the Loch Ewe area of the West Coast of Scotland were found to be infected with the larval stages of Stephanochasmus baccatus Nicoll, 1907. The digestive glands of infected and uninfected molluscs were examined histologically and the pathogenesis of the larval stages in the digestive gland are described. Two types of lesion were found to occur. In Type I lesions degenerative changes were confined to individual tubules and neighbouring tubules remained unaffected. The Type I lesion was the typical response to the presence of the parasite in the digestive gland. The Type II lesion was less common and was associated with very heavy infections in the early part of the molluscan cycle of infection. In these molluscs large areas of the digestive gland were destroyed, and there was a marked cellular infiltrate of putatively inflammatory cells.