Results 71 to 80 of about 141,246 (258)

Using structured decision making to evaluate the tradeoffs of selective fish passage

Conservation Science and Practice, EarlyView.
Abstract Dams have dramatically altered rivers and are a major contributor to native fish population declines. However, many dams serve important ecological, social, and economic functions, such as flood control, invasive species control, and provision of recreational opportunities.
Shane Flinn, Andrew M. Muir, Kelly Robinson   +2 more
wiley   +1 more source

Meat Quality of Rainbow Trout (Oncorhynchus mykiss) and Brown Trout (Salmo trutta fario) Farmed in Bulgaria

Journal of Food Quality and Hazards Control, 2019
Background: Fish meat is outlined with high nutritional value having essential amino acids, unsaturated fatty acids, mineral and vitamins. In this short report, we compared the meat quality of rainbow trout (Oncorhynchus mykiss) and brown trout (Salmo ...
G. Zhelyazkov, D. Stratev
doaj  

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

Feeding selectivity of brown trout (Salmo trutta) in Loch Ness, Scotland [PDF]

, 2000
The aim of this study was to compare statistically the zooplankton assemblage ingested by brown trout (Salmo trutta) in Loch Ness with that of the zooplankton in the water column.
Grey, Jonathan, Jones, Roger, Thackeray, Stephen   +2 more
core  

Who will become dominant? Investigating the roles of individual behaviour, body size, and environmental predictability in brown trout fry hierarchies [PDF]

, 2017
This paper presents a study investigating performance of brown trout fry, with different behavioural characteristics, in environments differing in food predictability.
Berger, David, Johnsson, Jorgen I., Naslund, Joacim   +2 more
core   +2 more sources

A Review of a Decade of Anadromous Salmonid Hatchery (And Stocking) Research: Insights for Policy, Management and a Changing Climate

Fish and Fisheries, EarlyView.
ABSTRACT Hatcheries and stocking programmes have long been a cornerstone of fisheries management, seen as tools for fisheries enhancement and/or conservation of threatened populations. Their use draws controversy, however, from a growing body of research over the last 50 years suggesting that stocking can have negative consequences for wild stocks, and
Hannah L. Harrison, Øystein Aas, Valerie Berseth, Tom Chance, Katherine L. Dalby, Shelley Denny, Michael T. Fabiano, Norm Johnson, Tor Kitching, Lian E. Kwong, Polina Orlov, Adrian P. Spidle, Alan Walker, Kyle Wellband, Lorna Wilson, Kurt Samways   +15 more
wiley   +1 more source

Morphometric and External Injury Characterization of Rainbow Trout (O. mykiss) Used for Stocking in the Alpine River Inn (Bavaria, Germany)

Fisheries Management and Ecology, EarlyView.
ABSTRACT Stocking fish is a common practice in fisheries management, particularly for species of high conservation value or economic importance. Despite its widespread use, systematic evaluation of fish stockings remains scarce. This includes non‐native species such as rainbow trout (Oncorhynchus mykiss), which are intensively stocked into European ...
Christoffer Nagel, David Goldbrunner, Josef Knott, Joachim Pander, Juergen Geist   +4 more
wiley   +1 more source

Specific niche characteristics facilitate the invasion of an alien fish invader in boreal streams [PDF]

, 2012
We studied the ecological niche relations of native stream fish and an alien invader, brook trout (Salvelinus fontinalis), to examine if brook trout had located an underused environmental niche in our boreal study system. In both study years (1994 versus
Heino, Jani, Huusko, Ari, Korsu, Kai, Muotka, Timo   +3 more
core   +2 more sources

Effects of the Invasive Round Goby on Swedish Recreational Fishing Values

Fisheries Management and Ecology, EarlyView.
ABSTRACT The round goby, an invasive fish from the Black and Caspian Seas, has spread to Swedish waters, threatening recreational fisheries. We modeled impacts on the future recreational fishery in Sweden using data from a recreational fishing survey, and estimated effects of the round goby on other fish species. Values attached to recreational fishing
Göran Bostedt, Ola Carlén, Rahmat Naddafi, Ann‐Britt Florin   +3 more
wiley   +1 more source