Accession Number : ADA322968
Title : Bacterial Gill Disease of Freshwater Fishes,
Corporate Author : FISH AND WILDLIFE SERVICE KEARNEYSVILLE WV NATIONAL FISH HEALTH RESEARCH LAB
Personal Author(s) : Bullock, G. L.
PDF Url : ADA322968
Report Date : 1990
Pagination or Media Count : 7
Abstract : Fish gills function as both respiratory and excretory organs. Basically they consist of a network of capillaries where blood is separated from the surrounding water by only one or two layers of cells. Proliferation of epithelial tissue, and later the loss of surface by the clubbing and fusing of lamellae, impair respiration and the excretion of nitrogenous waste materials, and disturb osmotic balance. Because these changes adversely affect the health of fish, the prevention and treatment of gill diseases are important in fish culture. Pathologic changes in gill tissues have been divided into five categories. Bacterial gill disease, the most lethal of these categories, is discussed here.
Descriptors : *FRESH WATER, *BACTERIAL DISEASES, *FISHES, *FISH GILLS, EPITHELIUM, OSMOSIS, TISSUES(BIOLOGY), WATER, SURFACES, SEPARATION, PATHOLOGY, RESPIRATION, WILDLIFE, BLOOD, CAPILLARIES(ANATOMY), EXCRETION.
Subject Categories : Biology
Anatomy and Physiology
Distribution Statement : APPROVED FOR PUBLIC RELEASE