作者: Gus Wathen , Joseph Zydlewski , Stephen M. Coghlan , Joan G. Trial
DOI: 10.1080/00028487.2012.655116
关键词: Habitat 、 Fish migration 、 Biology 、 Salmo 、 Bass (fish) 、 Sympatry 、 Fishery 、 Diel vertical migration 、 Riffle 、 Micropterus 、 Ecology
摘要: Abstract Invasive smallmouth bass Micropterus dolomieu have been introduced to some of the last remaining watersheds that contain wild anadromous Atlantic salmon Salmo salar, yet little is known about interactions between these species. We used an artificial stream equipped with passive integrated transponder tag antenna arrays monitor habitat use and movements age-0 in sympatry allopatry. additive substitutive designs test for changes use, diel movements, activity patterns prior-resident or resulting from addition conspecifics heterospecifics. prior residents did not change their presence conspecific heterospecific invaders. However, invaders lessen riffle by during daytime. displayed different movement (At...