Upper temperature limits for trout in New Zealand and climate change

Autor:	M. Poynter, D. Scott
Rok vydání:	1991
Předmět:	biology Ecology animal diseases Global warming Climate change Aquatic Science biology.organism_classification Latitude Trout Brown trout Atmosphere of Earth Environmental science Rainbow trout Egg incubation
Zdroj:	Hydrobiologia. 222:147-151
ISSN:	1573-5117 0018-8158
DOI:	10.1007/bf00006102
Popis:	The significance of temperature in determining the northernmost limit of trout in New Zealand is discussed, and the river temperature records available suggest that high winter temperatures, rather than high summer temperatures are involved. The predicted climate changes consequent on increased concentrations of atmospheric gases, are used to predict changes in trout distribution. A 1.5 °C increase is likely to result in a contraction of the distribution of brown trout in northern areas, but the effects elsewhere on brown trout would be limited. A 3 °C increase is likely to eliminate both species from borthern latitudes, while heat stress could alter distributions of both species throughout the country. The possibilities of genetic responses to the changes are discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::892d4c807d254413493aa88542161a9b https://doi.org/10.1007/bf00006102 Zobrazit plný text záznamu Full text from SpringerLink