Pre-winter lipid stores in young-of-year Atlantic salmon along a north-south gradient

Autor:	A. Lohrmann, T. F. Næsje, Øyvind Solem, Torbjørn Forseth, Jo Vegar Arnekleiv, Ola Ugedal, Anders Gravbrøt Finstad, E. Niemelä, Ole Kristian Berg
Rok vydání:	2009
Předmět:	biology Norway Salmo salar Aquatic animal Lipid metabolism Aquatic Science Lipid Metabolism biology.organism_classification Lipid storage Lipids Latitude Fishery Northern norway Oceanography Rivers Lipid content Animals Seasons Sampling time Salmo Ecology Evolution Behavior and Systematics
Zdroj:	Journal of Fish Biology. 74:1383-1393
ISSN:	1095-8649 0022-1112
Popis:	The pre-winter lipid stores of young-of-the-year (YOY, age 0 year) Atlantic salmon Salmo salar were analysed along a north-south gradient from c. 71 to 58 degrees N, with winter conditions ranging from >200 days of ice cover to no ice. The rivers sampled in Northern Norway represent some of the most northerly S. salar rivers. There was an increase in lipid content with increasing latitude, and mean lipid content (size adjusted to common mass) for YOY in northern rivers were almost three times higher: 0.035 g compared to 0.013 g in southern rivers. The relationship was not sensitive to variation in sampling time or variation in YOY body size. The lipid stores, however, varied markedly between rivers and also between neighbouring rivers, indicating different strategies or opportunities for pre-winter lipid storage both at latitudinal and local scales.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8fdd9d9da705fcbb5fee03b8a0ad1834 https://doi.org/10.1111/j.1095-8649.2009.02193.x Zobrazit plný text záznamu Plný text