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pro vyhledávání: '"T, Hesthagen"'
Akademický článek
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Publikováno v:
Journal of fish biology. 91(5)
In southern Norway, 22 acidified rivers supporting anadromous salmonids were mitigated with lime to improve water quality and restore fish populations. In 13 of these rivers, effects on Salmo trutta and Salmo salar densities were monitored over 10-12
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::3d00b1e603f5116d79c9bf99f0b3aab6
https://pubmed.ncbi.nlm.nih.gov/28905398
https://pubmed.ncbi.nlm.nih.gov/28905398
Publikováno v:
Fisheries Management and Ecology. 17:186-191
The effect of supplementary stocking of juvenile (age 0+), hatchery-reared, brown trout, Salmo trutta L., on annual yields was assessed in a Norwegian mountain reservoir between 1979 and 2007. Fishing was mainly carried out by local fishermen with be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::806eefba4c2ca9ee6a16d4d83ebe2f76
https://doi.org/10.1111/j.1365-2400.2010.00735.x
https://doi.org/10.1111/j.1365-2400.2010.00735.x
Autor:
O. T. Sandlund, T. Hesthagen
Publikováno v:
Journal of Fish Biology. 71:173-183
At present, there are 43 self-sustaining fish species in Norwegian fresh waters, 11 (26%) of which are non-native, representing four families (Salmonidae, Cyprinidae, Centrarchidae and Ictaluridae). Human-mediated fish introductions probably began in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d805677de98f1fe28875bfb396fb0492
https://doi.org/10.1111/j.1095-8649.2007.01676.x
https://doi.org/10.1111/j.1095-8649.2007.01676.x
Autor:
B. M. Larsen, T. Hesthagen
Publikováno v:
Fisheries Management and Ecology. 10:87-95
A total of 21 acidified Norwegian rivers are now being limed to re-establish or restore Atlantic salmon, Salmo salar L., stocks. Natural reproduction of Atlantic salmon was evident 1 year after the first year of liming in all rivers that had lost the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a20f4981a537837cf60ad316c31e8662
https://doi.org/10.1046/j.1365-2400.2003.00326.x
https://doi.org/10.1046/j.1365-2400.2003.00326.x
Autor:
T. Hesthagen, Jan Heggenes
Publikováno v:
Journal of Fish Biology. 62:222-236
Habitat competition in brown trout Salmo trutta and Siberian sculpin Cottus poecilopus was investigated by varying density, fish size, and species composition in stream channels providing areas of different substratum particle sizes. In allopatry, bo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c17caa9e38036ecbc6828cbf1ca4941a
https://doi.org/10.1046/j.1095-8649.2003.00024.x
https://doi.org/10.1046/j.1095-8649.2003.00024.x
Autor:
B. Jonsson, T. Hesthagen
Publikováno v:
Journal of Fish Biology. 60:415-426
In 66 Norwegian lakes with allopatric populations of brown trout Salmo trutta that ranged from highly acidified to non-acid (pH 4.7-6.6) there was a significant inverse correlation between mean age and relative abundance (CPUE). As mean annual surviv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3fcaaf0eae20edcf9ab4049cc65f0956
https://doi.org/10.1111/j.1095-8649.2002.tb00290.x
https://doi.org/10.1111/j.1095-8649.2002.tb00290.x
Publikováno v:
Fisheries Research. 54:153-170
The Eurasian perch, Perca fluviatilis (L.), was fished with Nordic multimesh gillnets, the mesh size combination of which was based on geometric series. From the test fishing data the fish girth was found to be linearly related to the third root of f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7cc21d67d3ded88b0585b45b0102895d
https://doi.org/10.1016/s0165-7836(00)00301-5
https://doi.org/10.1016/s0165-7836(00)00301-5
Akademický článek
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Autor:
T. Hesthagen, B. Jonsson
Publikováno v:
Journal of Fish Biology. 52:419-429
The influence of the water quality of tributary streams on the relative abundance in benthic gillnet catches (catch per unit effort, cpue) of allopatric brown Salmo trutta was assessed in associated acidic, softwater lakes. The study was carried out
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39a341ce0c5fd0c9b4408796ca4b14b2
https://doi.org/10.1111/j.1095-8649.1998.tb00808.x
https://doi.org/10.1111/j.1095-8649.1998.tb00808.x