Habitat Use by and Preferences of Juvenile Atlantic Salmon in Two Newfoundland Rivers

摘要: Abstract We examined habitat use by juvenile Atlantic salmon Salmo salar in two Newfoundland rivers: One with riffle habitat, the most typical rearing for this species; other extensive areas of deeper slow-flowing water and rooted macrophytes. derived habitat-use curves both types from field data, then measured availability to calculate preference each area. Both varied between young year older juveniles (parr). There was little difference used rivers; however, parr differed significantly some variables sites. Water velocity at fish's snout principal variable that defined use. Substrate unimportant but it had influence on slow-water environment. depth within range depths during present study. The e...