Results 61 to 70 of about 1,077,662 (231)

Estrogenic Endocrine Disruption in Switzerland: Assessment of Fish Exposure and Effects

CHIMIA, 2008
Estrogenic exposure has been reported to occur in Swiss rivers, and there is concern that reduced reproductive health, caused by disturbances of the endocrine system, may contribute to the observed decline in brown trout catch.
Patricia Burkhardt-Holm, Helmut Segner, Richard Burki, Armin Peter, Sara Schubert, Marc J.-F. Suter, Mark E. Borsuk   +6 more
doaj   +1 more source

Trophic ecology of brown trout (Salmo trutta L.) in subarctic lakes

, 2015
In subarctic lake systems, fish species like brown trout are often important predators, and their niche performance is a key characteristic for understanding trophic interactions and food web functioning at upper trophic levels.
J. Sánchez‐Hernández, J. Sánchez‐Hernández, P. Amundsen   +2 more
semanticscholar   +1 more source

Feeding habits of the alien brook trout Salvelinus fontinalis and the native brown trout Salmo trutta in Czech mountain streams

Knowledge and Management of Aquatic Ecosystems, 2017
Quantifying patterns of prey resource use is fundamental to identify mechanisms enabling the coexistence of related fish species. Trophic interactions between the native brown trout, Salmo trutta, and the introduced brook trout, Salvelinus fontinalis ...
Horká Petra, Sychrová Olga, Horký Pavel, Slavík Ondřej, Švátora Miroslav, Petrusek Adam   +5 more
doaj   +1 more source

Proliferative kidney disease (PKD) agent Tetracapsuloides bryosalmonae in brown trout populations in Estonia.

Diseases of Aquatic Organisms, 2014
Proliferative kidney disease (PKD) caused by the myxozoan parasite Tetracapsuloides bryosalmonae is a serious parasitic disease threatening both farmed and wild salmonid populations, but very little is currently known about the distribution of the ...
M. Dash, A. Vasemägi
semanticscholar   +1 more source

Atlantic salmon Salmo salar L., brown trout Salmo trutta L. and Arctic charr Salvelinus alpinus (L.): a review of aspects of their life histories

, 2003
– Among the species in the family Salmonidae, those represented by the genera Salmo, Salvelinus, and Oncorhynchus (subfamily Salmoninae) are the most studied. Here, various aspects of phenotypic and life-history variation of Atlantic salmon Salmo salar L.
A. Klemetsen, P. Amundsen, J. Dempson, B. Jonsson, N. Jonsson, M. O’Connell, E. Mortensen   +6 more
semanticscholar   +1 more source

Mass-Marking Rainbow Trout and Brown Trout Fingerlings with Oxytetracycline

Journal of Freshwater Ecology, 2005
ABSTRACT We immersed fingerling rainbow trout (Oncorhynchus mykiss) and brown trout (Salmo trutta) in a 500-mg/L solution of oxytetracycline (OTC) for 6 h to determine marking efficacy. The technique marked 100% and 92% of rainbow trout and brown trout otoliths, respectively.
Jonathan R. Meerbeeka, Phillip W. Bettoli   +1 more
openaire   +2 more sources

Loss of native brown trout diversity in streams of the continental Croatia

Frontiers in Environmental Science
Introduction: The genetic diversity of brown trout in the Western Balkans has been disrupted by the introduction of non-native Atlantic phylogenetic lineages and non-native haplotypes of the Danubian phylogenetic lineage.
Tamara Kanjuh, Ana Marić, Dubravka Škraba Jurlina, Predrag Simonović, Ivan Špelić, Marina Piria, Marina Piria, Ivana Maguire   +7 more
doaj   +1 more source

Global Transcriptome Profiling Reveals Molecular Mechanisms of Metal Tolerance in a Chronically Exposed Wild Population of Brown Trout

Environmental Science and Technology, 2013
Worldwide, a number of viable populations of fish are found in environments heavily contaminated with metals, including brown trout (Salmo trutta) inhabiting the River Hayle in South-West of England.
T. M. U. Webster, Nicolas R. Bury, R. Aerle, Eduarda M. Santos   +3 more
semanticscholar   +1 more source

COMPARATIVE RESEARCH ON LOCOMOTOR COMPONENTS OF RHEOTACTIC RESPONSE IN JUVENILE ATLANTIC SALMON (SALMO SALAR L.) AND BROWN TROUT (SALMO TRUTTA L.)

Transactions of the Karelian Research Centre of the Russian Academy of Sciences, 2017
We experimentally studied the locomotor components of rheotactic response in three age cohorts (0+, 1+, 2+) of Altantic salmon and brown trout parr from, respectively, the Varzuga River main channel and tributary (Kola Peninsula, White Sea drainage basin)
Mikhail Ruch'ev, Denis Efremov, Mikhail Skorobogatov, Alexey Veselov   +3 more
doaj   +1 more source

Seasonal Variation in the Activity of the Thyroid Gland of Yearling Brown Trout Salmo Trutta Linn [PDF]

, 1959
D. R. Swift
openalex   +1 more source