An idiopathic proliferative disease syndrome of the midgut and ventral nerve in the Kuruma prawn, Penaeus japonicus Bate, cultured in Hawaii

D. V. LIGHTNER, R. M. REDMAN, T. A. BELL, J. A. BROCK

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    5 Scopus citations

    Abstract

    Abstract. Populations of postlarval, juvenile and adult Kuruma prawns, Penaeus japonicus Bate, have been affected by an unusual proliferative condition of the midgut and ventral nerve cord. Animals affected with this gut and nerve syndrome have been observed from various shrimp systems in Hawaii, including high density tanks and raceways, low density ponds, and adult broodstock held in a maturation system. Affected shrimp ranged in age from ∼20‐day‐old postlarvae of ∼0.02g average weight to adult shrimp of ∼ 60 g average weight. The principal lesions observed in affected animals were a hypertrophy of the anterior midgut mucosal epithelium basement membrane (BM) and a hyperplasia of the epineurium that covers the ventral nerve cord and segmental ganglia in the gnathothorax. There seemed to be a positive correlation between increased thickness of the BM and disease, and possibly a relationship between ataxia and lethargy and the degree of hyperplasia of the epineurium.

    Original languageEnglish (US)
    Pages (from-to)183-191
    Number of pages9
    JournalJournal of Fish Diseases
    Volume7
    Issue number3
    DOIs
    StatePublished - May 1984

    ASJC Scopus subject areas

    • Aquatic Science
    • veterinary (miscalleneous)

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