Results 71 to 80 of about 1,502,487 (275)

Effects of stocked trout on stream invertebrate communities

Journal of Freshwater Ecology, 2017
Brown trout (Salmo trutta) are commonly stocked in streams and rivers worldwide to enhance recreational fisheries, but this practice can adversely impact other organisms in these ecosystems.
Alexander V. Alexiades, Clifford E. Kraft   +1 more
doaj   +1 more source

Hybridization With a Non‐Native Congener Threatens the Catalan Chub (Squalius laietanus): Optimization of a DNA‐Based Early Warning Tool

Integrative Zoology, EarlyView.
Hybridization with non‐native congeners threatens endemic freshwater fishes. Using a rapid and cost‐effective nuclear DNA assay, we detected widespread hybridization between the Catalan chub (Squalius laietanus) and the non‐native European chub (Squalius cephalus) across S.
Núria Pérez‐Bielsa, Alba Abras, Sandra Heras, Marc Palmada‐Flores, Jose‐Luis García‐Marín   +4 more
wiley   +1 more source

Exterior and weight characteristics of age-1+ brown trout (Salmo trutta Linnaeus, 1758), rainbow trout (Oncorhynchus mykiss Walbaum, 1792) and brook trout (Salvelinus fontinalis Mitchill, 1814)

Ribogospodarsʹka Nauka Ukraïni, 2018
Purpose. To study and analyze the results of the phenotypic parameters and the rate of linear and weight growth of 1+ salmonids (Salmo trutta m. fario, Oncorhynchus mykiss, Salvelinus fontinalis) grown in the tanks of the farm "Fish Stream" in the ...
Ye. Barylo
doaj   +1 more source

Marine habitat use and feeding ecology of introduced anadromous brown trout at the colonization front of the sub-Antarctic Kerguelen archipelago

Scientific Reports, 2021
In 1954, brown trout were introduced to the Kerguelen archipelago (49°S, 70°E), a pristine, sub-Antarctic environment previously devoid of native freshwater fishes. Trout began spreading rapidly via coastal waters to colonize adjacent watersheds, however,
Jan Grimsrud Davidsen, Xavier Bordeleau, Sindre Håvarstein Eldøy, Frederick Whoriskey, Michael Power, Glenn T. Crossin, Colin Buhariwalla, Philippe Gaudin   +7 more
doaj   +1 more source

Downstream Passage Performance of European Silver Eels (Anguilla anguilla): The Importance of Phenotypic Variation and Rack Design

Animal Conservation, EarlyView.
During their spawning migration, European silver eels frequently encounter hydropower facilities where successful downstream passage is essential for the conservation of this critically endangered species. In this study, we evaluated how three angled rack designs and individual behavioral variation influenced downstream passage success in large‐scale ...
Dennis Leandersson, Johan Watz, Johan Höjesjö, P. Anders Nilsson, Pernilla Hansson, David Aldvén, Magnus Lovén Wallerius, Patrik Andreasson, Olle Calles   +8 more
wiley   +1 more source

Proliferative kidney disease in brown trout – infection level, pathology and mortality under field conditions [PDF]

, 2015
Proliferative kidney disease (PKD) is an emerging disease threatening wild salmonid populations. In temperature-controlled aquaria, PKD can cause mortality rates of up to 85% in rainbow trout.
Schneider, Ernst, Schmidt-Posthaus, Heike, Hirschi, Regula, Schneider E, Hirschi R, Schmidt-Posthaus H   +5 more
core   +2 more sources

Parks Canada's Climate‐Smart Conservation Planning Workbook

Conservation Science and Practice, EarlyView.
The Climate‐Smart Conservation Planning Workbook (Supporting Information S1), initially drafted by Parks Canada in 2020, offers a structured, evidence‐based approach to integrating climate change considerations into natural resource management. It involves a four‐step process: identifying forward‐looking conservation goals, assessing climate threats ...
Elizabeth A. Nelson, Izabella Balcerzak, Stephanie Barr, Gabrielle Beaulieu, Karyne Bellehumeur, Diane Casimir, Alison Cassidy, Mathieu Côté, Sarah Cotter, Megan Crowley, Leah de Montreuil, Jennifer Eaton, Caitlin Farquharson, Zoe Furlotte, Kim Gamble, Emily K. Gonzales, Hilary Harrop Archibald, Briar Howes, Robyn L. Irvine, Tina Jansen van Vuuren, Dan Kehler, Nicole Kroeker, Megan Landry, Amanda Lavers, Anna Lee‐Carswell, Alexander L. MacDonald, David Mazerolle, Garrett Mombourquette, Kelly Murray, David Musto, Katriina O'Kane, Scott Parker, Hailey Paynter, Marlow Pellatt, Kent Prior, Sébastien Renard, Matthew J. Smith, David Tavares, Julia Thomas, Darien Ure, Brenda Van Sleeuwen, Josh Van Wieren, Elizabeth Vincer, Chantal Vis, Darroch Whitaker, Carmen Wong, Wanli Wu, Jennifer Yakimishyn, Sarah Yuckin, Alice Yue   +49 more
wiley   +1 more source

Detection and comparison of the sensory quality of wild and farmed brown trout (Salmo trutta) by consumers

Acta Agriculturae Slovenica, 2011
To compare the sensorial quality of wild and farmed brown trout 34 consumer were asked to decide which of the two samples presented to them in double blind test was preferred regarding appearance, aroma, juiciness, mouth feeling and general impression if
Jurij POHAR
doaj   +1 more source

Ecological considerations for reintroducing Chinook salmon upstream of Shasta Dam

Conservation Science and Practice, EarlyView.
In this assessment, we reviewed existing literature to assess the ecological risks, benefits, and uncertainties associated with reintroducing Chinook salmon into the McCloud River, a tributary of the Sacramento River, California. We identified considerations related to population viability, disease, and species interactions.
Claire E. Couch, Bailey A. Morgan, Carl Ostberg, BayLee R. Laufer, Jan Lovy, Rachelle C. Johnson, Jill M. Hardiman, Tobias J. Kock   +7 more
wiley   +1 more source

Modelling relationships between juvenile brown trout (Salmo trutta L.) density and landscape characteristics: Integration of electrofishing data and spatial data to assess population status. [PDF]

J Fish Biol
Abstract Brown trout (Salmo trutta L.) are ecologically and economically important, but like many salmonids their populations are declining. Trout exhibit a high level of phenotypic plasticity, ranging from freshwater residency to anadromy. This complexity causes problems for assessment and constrains application of adult catch‐based assessment methods
Jackson FL, Fryer RJ, Eagle LJB, Malcolm IA.   +3 more
europepmc   +2 more sources