Results 121 to 130 of about 45,385 (267)

Relationship between the environment and the occurrence of invasive pumpkinseed Lepomis gibbosus in lotic and lentic habitats

Journal of Fish Biology, EarlyView.
Abstract The pumpkinseed Lepomis gibbosus is a freshwater fish species native to North America. It has been introduced to Europe, where it is recognized as one of the worst aquatic invaders due to its high adaptability and invasive potential. This study aimed to determine the presence of L. gibbosus in small to medium‐sized water bodies, both lotic and
Ivan Špelić, Marko Glogoški, Marina Piria   +2 more
wiley   +1 more source

Environmental DNA surveys can determine in-stream dominance of non-native brook charr Salvelinus fontinalis over native brown trout Salmo trutta

Ecological Indicators
For effective management of established potentially invasive species it is important to find management target sites (e.g. for depletion or eradication measures). In Sweden, the brook charr is non-native and competes with the native brown trout.
Andreas Broman, William F. Englund, Niclas Gyllenstrand, Joacim Näslund   +3 more
doaj   +1 more source

Identifying thresholds in air exposure, water temperature and fish size that determine reflex impairment in brook trout exposed to catch-and-release angling. [PDF]

Conserv Physiol, 2022
Brownscombe JW, Ward TD, Nowell L, Lennox RJ, Chapman JM, Danylchuk AJ, Cooke SJ.   +6 more
europepmc   +1 more source

Fish pass design - criteria for the design and approval of fish passes and other structures to facilitate the passage of migratory fish in rivers [PDF]

, 1984
Many of British rivers hold stocks of salmon (Salmo salar L.) and sea trout (Salmo trutta L.) and during most of the year some of the adult fish migrate upstream to the head waters where, with the advent of winter, they will eventually spawn.
Beach, M.H.
core  

Reproductive parameters of wild and hatchery‐reared sea trout (Salmo trutta m. trutta L.) females from the Łeba River (southern Baltic Sea)

Journal of Fish Biology, EarlyView.
Abstract Sea trout Salmo trutta m. trutta L. has high socioeconomic and ecological importance in the Atlantic region; therefore, stocking hatchery‐reared fish is widely practiced for stock enhancement and recovery of wild populations. In this study, fecundity of wild and stocked hatchery‐reared sea trout sampled from the Łeba River (southern Baltic Sea
Adam M. Lejk, Piotr Hliwa
wiley   +1 more source

The environmental context of inducible HSP70 expression in Eastern Brook Trout. [PDF]

Conserv Physiol, 2021
Nguyen BV, O'Donnell B, Villamagna AM.
europepmc   +1 more source

ON THE FRONTIER OF GENERATING REVEALED PREFERENCE CHOICE SETS: AN EFFICIENT APPROACH [PDF]

Deterministic rules for generating choice sets are often employed by analysts confronting universal sets with large numbers of alternatives. For destination choice analysis, site exclusion rules defined by travel time, distance, or quality have a ...
Boyle, Kevin J., Hofler, Richard, Milon, J. Walter, Scrogin, David   +3 more
core   +1 more source

Physiological Responses to Acute Silver Exposure in the Freshwater Crayfish (\u3cem\u3eCambarus diogenes diogenes\u3c/em\u3e)—A Model Invertebrate? [PDF]

, 2002
Adult crayfish (Cambarus diogenes diogenes) exposed to 8.41 ± 0.17 μg silver/L (19.4% as Ag+) in moderately hard freshwater under flow-through conditions for 96 h exhibited ionoregulatory disturbance, elevated metabolic ammonia (Tamm) production and ...
Bianchini, Adalto, Brauner, Colin J., Grosell, Martin, Kelly, Scott P., McGeer, James C., Wood, Chris M.   +5 more
core   +1 more source

Return migration to fresh water and overwintering locations used by sympatric anadromous populations of Arctic char (Salvelinus alpinus) and Dolly Varden (Salvelinus malma malma)

Journal of Fish Biology, EarlyView.
Abstract Anadromous Arctic char (Salvelinus alpinus) and northern form Dolly Varden (Salvelinus malma malma) are highly valued by Indigenous communities in northern Canada. Rapid, ongoing environmental changes are affecting populations of both of these iteroparous species, and understanding variability in life‐history tactics is essential for ...
Rosie Smith, Eric Hitkolok, Amanda Dumond, Simon DePasquale, Hannah Thibault, Spencer Weinstein, Paul Craig, Tracey Loewen, Heidi Swanson   +8 more
wiley   +1 more source

Evidence for the Use of Mucus Swabs to Detect Renibacterium salmoninarum in Brook Trout. [PDF]

Pathogens, 2021
Riepe TB, Vincent V, Milano V, Fetherman ER, Winkelman DL.   +4 more
europepmc   +1 more source