Antifreeze proteins in the grubby sculpin, Myoxocephalus aenaeus and the tomcod, Microgadus tomcod: comparisons of seasonal cycles

Autor:	Howard M. Reisman, Margaret A. Shears, Garth L. Fletcher, Ming H. Kao
Rok vydání:	1987
Předmět:	Myoxocephalus biology Ecology Microgadus tomcod Zoology Aquatic Science Myoxocephalus aenaeus biology.organism_classification Cottidae Freezing point Antifreeze protein Sculpin Atlantic cod Ecology Evolution Behavior and Systematics
Zdroj:	Environmental Biology of Fishes. 18:295-301
ISSN:	1573-5133 0378-1909
DOI:	10.1007/bf00004882
Popis:	Antifreeze protein levels in the plasma of the grubby sculpin, Myoxocephalus aenaeus and the tomcod, Microgadus tomcod of Long Island coastal waters start to increase by November in anticipation of midwinter freezing conditions. Peak levels of antifreeze, as measured by the difference in plasma melting and freezing points, were detected in January for both species. The thermal hysteresis values reached 0.459°C in sculpin and 0.51°C in tomcod. Antifreeze peptides and glycopeptides start to disappear when water temperatures begin to rise and are at insignificant levels by late spring. Aspects of the seasonal cycle and the level of antifreeze activity were compared in three sympatric species (sculpin, tomcod, flounder); in two closely related but ecologically distinct gadids (tomcod, Atlantic cod); and within the genus Myoxocephalus.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2cbe2b1e32339bb23b5e947129e992fd https://doi.org/10.1007/bf00004882 Zobrazit plný text záznamu Full text from SpringerLink