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
      Microbiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE