FEEDING OF ATLANTIC SALMON (SALMO-SALAR L) POSTSMOLTS IN A FJORD IN CENTRAL NORWAY

Citation
Cd. Levings et al., FEEDING OF ATLANTIC SALMON (SALMO-SALAR L) POSTSMOLTS IN A FJORD IN CENTRAL NORWAY, Canadian journal of zoology, 72(5), 1994, pp. 834-839
Citations number
27
Categorie Soggetti
Zoology
Journal title
ISSN journal
00084301
Volume
72
Issue
5
Year of publication
1994
Pages
834 - 839
Database
ISI
SICI code
0008-4301(1994)72:5<834:FOAS(L>2.0.ZU;2-H
Abstract
The feeding habits of postsmolt Atlantic salmon (Salmo salar) caught b y two-boat trawling were studied in Trondheimsfjord in central Norway. Fish caught in the inner fjord near the estuaries of the Orkla and Ga ula rivers had recently fed on food produced in freshwater and estuari ne habitats, namely stonefly and mayfly nymphs and gammarid amphipods. Stomach contents of postsmolts caught farther seaward were dominated by adult insects, with smaller proportions of the food volume originat ing from marine pelagic (larval fish, hyperiid amphipods, calanoid cop epods) and nearshore (gammarid amphipods) habitats.