JavaScript is disabled for your browser. Some features of this site may not work without it.
Histopathological markers of water quality stress in the American lobster, Homarus americanus

Author
Scheuerman, Heather J.
Abstract
The American lobster, Homarus americanus, lives in the cold waters of the Northeastern United States and Canada. Repeated mass mortalities of H. americanus were reported in the late summer and early fall of 1998 through present (2003) in the Long Island Sound. Increased water temperatures, exceeding the thermal limit, and water contamination were recorded in association with the mass mortalities. Affected lobsters presented with lethargy, poor shelf-life, and an orange abdominal coloration. Hemolymph samples were collected and necropsies were perfromed. Abnormalities noted on clinical chemistry included decreased glucose, protein, calcium, and iron hemolymphconcentrations. Histological changes, including multifocal granulomas and calcium carbonate crystals, were noted in various tissues. The histological changes are likely a sequela to an acid base disturbance. The histiological features defined are likely indicators of water quality stress.
Journal/Series
Senior seminar paper Seminar SF610.1 2004 S34
Date Issued
2003-10-08Subject
Lobsters -- Diseases; Lobsters -- Effect of water quality on; Lobsters -- Effect of stress on; Lobsters -- Histopathology
Type
term paper