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pro vyhledávání: '"Ulf Grimås"'
Autor:
Ulf Grimås, Torgny Wiederholm
Publikováno v:
Ecography. 2:119-124
Grimas, U. and Wiederholm, T. 1979. Biometry and biology of Constempellina brevicosta (Chironomidae) in a subarctic lake. – Holarct. Ecol. 2: 119-124. Constempellina brevicosta Edw. made up about 50% of the chironomids emerging from the littoral of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::37cc0bbc1e7c00f4065381ce2a13d878
https://doi.org/10.1111/j.1600-0587.1979.tb00690.x
https://doi.org/10.1111/j.1600-0587.1979.tb00690.x
Autor:
Ulf Grimås, Nils-Arvid Nilsson
Publikováno v:
Schweizerische Zeitschrift für Hydrologie. 24:49-75
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6683fb5267428007611a1e9237f1e9c7
https://doi.org/10.1007/bf02503416
https://doi.org/10.1007/bf02503416
Publikováno v:
Journal of the Fisheries Research Board of Canada. 29:937-940
In trying to make predictions for the future of the Fennoscandian lakes it is difficult to disregard the obvious threat of a common protein deficiency in the world population. At the moment, however, there is a trend in the fishery away from a commer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1dc17933da5feeea2c1d91525c1ae660
https://doi.org/10.1139/f72-136
https://doi.org/10.1139/f72-136
Publikováno v:
Journal of the Fisheries Research Board of Canada. 29:807-817
Vättern, the second largest lake of Sweden, contains 28 species of fish, of which Arctic char (Salvelinus alpinus) and whitefish (Coregonus spp.) are the most important economically. There is both a commercial fishery and a sport fishery. The former
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::360d17829fbff58246e013e4e9301af7
https://doi.org/10.1139/f72-125
https://doi.org/10.1139/f72-125