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Publikováno v:
Canadian Journal of Zoology. 98:399-409
Fish behavior types can predict angling vulnerability, providing insights about how recreational fishing may lead to artificial trait selection. Most vulnerability studies have focused on species with active foraging strategies, and the impact of env
Publikováno v:
Canadian Journal of Zoology. 96:87-95
Introduced species influence the dynamics and structure of freshwater systems; understanding the variables that shape introduced species’ distributions can aid in anticipating their spread. We examined multiple factors that may influence the distri
Publikováno v:
Canadian Journal of Zoology. 95:299-310
The aim of this study was to increase our knowledge about the nutritional needs of walleye (Sander vitreus (Mitchill, 1818)) broodstock. Two dietary treatments were tested: the first consisted of frozen Atlantic mackerel (Scomber scombrus L., 1758) p
Autor:
Mathew G. Wells, Susan E. Doka, Bogdan Hlevca, Rick Portiss, Tyler B. Peat, Lee F.G. Gutowsky, Steven J. Cooke, Nicholas W.R. Lapointe, Jonathan D. Midwood
Publikováno v:
Canadian Journal of Zoology. 94:767-776
Understanding how individuals are distributed in space and time, as well as how they interact with dynamic environmental conditions, represent fundamental knowledge gaps for many fish species. Using acoustic telemetry tags, we monitored the temperatu
Publikováno v:
Canadian Journal of Zoology. 91:802-809
The acquisition of body reserves by migrating shorebirds at specific staging sites is critical for reaching their breeding or wintering grounds. As many North American shorebird populations are declining, major staging sites need to be identified for
Publikováno v:
Canadian Journal of Zoology. 81:1358-1366
The upper Bay of Fundy is a critical staging area for migrating semipalmated sandpipers (Calidris pusilla), which feed extensively on the amphipod Corophium volutator. Recent changes in the distributions of birds around the bay have generated interes
Publikováno v:
Canadian Journal of Zoology. 81:699-709
Recently, researchers have identified that nonlethal costs of predation may arise not only from lost energy intake but also potentially from increased energetic expenditure. During periods of heightened stress following unsuccessful predation attempt
Publikováno v:
Canadian Journal of Zoology. 80:756-770
Male smallmouth bass (Micropterus dolomieu) and largemouth bass (Micropterus salmoides) care for their offspring from fertilization until the offspring disperse after becoming capable of avoiding predators. We used activity transmitters to monitor ro
Autor:
Thomas P. Hurst, David O. Conover
Publikováno v:
Canadian Journal of Zoology. 79:129-136
The importance of activity to overwintering fishes has received little attention. Activity imposes two constraints: maximum swimming speed limits habitats that can be occupied for short periods of time, while the metabolic cost of swimming limits the
Autor:
Marianne Køie
Publikováno v:
Canadian Journal of Zoology. 78:182-190
Mature specimens of Cucullanus cirratus O.F. Muller, 1777 (Cucullanidae) were obtained from the pyloric caeca and intestine of Atlantic cod, Gadus morhua L., from Danish waters. Eggs embryonate in seawater. Third-stage larvae about 400 µm long, with