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Energy allocation in polymorphic Brown Trout [PDF]

open access: possibleFunctional Ecology, 1997
1. To evaluate differences in energy allocation to gonadal development of resident and anadromous Brown Trout, Salmo trutta, we analysed tissue composition and energy contents of adults of the two morphs from three small streams in southernmost Norway. Somatic energy per unit mass of anadromous spawners (5·0 ± 0·6 kJ g–1 wet weight) was 1·1 times that
N. Jonsson, B. Jonsson
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All About the Brown Trout [PDF]

open access: possibleNature, 1967
The Trout By W. E. Forst and M. E. Brown. (The New Naturalist.) Pp. 286 + 46 plates. (London: William Collins, Sons and Co., Ltd., 1967.) 25s. net.
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Astacene in the Brown Trout

Nature, 1947
Xanthophylls, and less frequently carotenes, have been identified in the skin of many species of fish, and are the usual pigments of the xanthophore cells1. The properties of these carotenoids, however, do not recommend them as the pigments of the red erythrophores, which are a prominent feature of the colour pattern of many Salmonidae.
openaire   +3 more sources

Habitat shifts in rainbow trout: competitive influences of brown trout

Oecologia, 1987
We compared habitat use by rainbow trout sympatric (three streams) and allopatric (two streams) with brown trout to determine whether competition occurred between these two species in the southern Appalachian Mountains. We measured water depth, water velocity, substrate, distance to overhead vegetation, sunlight, and surface turbulence both where we ...
A. J. Gatz, James M. Loar, M. J. Sale
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Brook trout use of thermal refugia and foraging habitat influenced by brown trout

, 2017
The distribution of native brook trout (Salvelinus fontinalis) in eastern North America is often limited by temperature and introduced brown trout (Salmo trutta), the relative importance of which i...
N. Hitt   +2 more
semanticscholar   +1 more source

Comparative Susceptibility of Brown Trout and Rainbow Trout to Discocotyle sagittata (Monogenea)

Journal of Parasitology, 2004
The susceptibility of brown trout (Salmo trutta) and rainbow trout (Oncorhynchus mykiss) to the monogenean Discocotyle sagittata in the United Kingdom was assessed by experimental infection of naive fish. One month postinfection with 100 oncomiracidia/host, brown trout harbored significantly lower burdens (27.7 worms/host +/- 4.13 SE) than rainbow ...
Rubio-Godoy, Miguel, Tinsley, Richard C.
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Effect of Reused Water on Brown Trout

The Progressive Fish-Culturist, 1986
Abstract Brown trout fingerlings (Salmo trutta) were reared for 141 d in water that passed successively through a series of seven troughs. Fish loading per trough was based on a flow index of 36.4, thus the cumulative index was 254.8 at the seventh water use.
Robert G. Piper, John K. Morrison
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Biology and Ecology of the Brown and Sea Trout

1999
International ...
Baglinière, Jean-Luc, Maisse, Gérard
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Are brown trout replacing or displacing bull trout populations in a changing climate

, 2016
Understanding how climate change may facilitate species turnover is an important step in identifying potential conservation strategies. We used data from 33 sites in western Montana to quantify climate associations with native bull trout (Salvelinus ...
R. Al‐Chokhachy   +8 more
semanticscholar   +1 more source

Fin Regeneration in Brown Trout

Transactions of the American Fisheries Society, 1943
Abstract In recent years, fin-clipping has become a widely-used method of distinctively marking fish for future identification. A check on possible regeneration in this type of marking is desirable. The following paper presents data on the clipping of ventral fins of yearling brown trout for two successive years.
openaire   +2 more sources

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