Results 221 to 230 of about 1,502,487 (275)
The growth of brown trout [PDF]
, 1939 An article discussing the factors affecting the rate of growth of brown trout, detailing the research udnertaken at Wray Castle, designed to clarify the influencing factors in different waters and investigate what would be required to increase their size.
Worthington, E.B., Swynnerton, G.H.
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Larger eggs in resident brown trout living in sympatry with anadromous brown trout
Ecology of Freshwater Fish, 1999 Abstract– Freshwater resident brown trout (Salmo trutta L.) in the stream Jorlandaan (southwestern Sweden) had larger eggs (range of actual mean egg wet weights, 65.9–108.5 mg) than both sympatric migratory trout (76.8–84.2 mg) and trout from five other Swedish streams with allopatric resident (23.7–80.1 mg) or migratory populations (44.5–121.9 mg ...
H. Olofsson, H. Mosegaard
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Quantitative Ecology and the Brown Trout.
The Journal of Applied Ecology, 1994Abstract Covering not only brown trout, but also their close relatives, this book provides valuable information which is also relevant to animal ecology. The book highlights the global success of the species and provides a long-term case study of population dynamics of one population.
P. S. Maitland, J. M. Elliott
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The response of a brown trout stocks and perception of anglers to cessation of brown trout stocking
Fisheries Management and Ecology, 2010Abstract Since the mid‐1980s, water quality has improved in German rivers, and fisheries have recovered. However, it is unsure whether the improvements are sufficient to maintain stocks and angling yield without supplementary stocking. This study examined the development in the local brown trout, Salmo trutta L., stocks and angling yield in the River ...
J. BAER, A. BRINKER
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Habitat shifts in rainbow trout: competitive influences of brown trout
Oecologia, 1987We 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, M J, Sale, J M, Loar
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Intersex in feral brown trout from Swiss midland rivers
Journal of Fish Biology, 2005 The incidence of intersex in feral populations of brown trout Salmo trutta in Switzerland is reported. The affected brown trout showed spermatogenic activity in ovarian tissue.
Etienne L. Vermeirssen +1 more
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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.
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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.
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Comparative Susceptibility of Brown Trout and Rainbow Trout to Discocotyle sagittata (Monogenea)
Journal of Parasitology, 2004The 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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The Effect of Some Sulfonamides on the Growth of Brook Trout, Brown Trout, and Rainbow Trout
Transactions of the American Fisheries Society, 1955Abstract Sulfonamides such as sulfisoxazole (GantrisinR), sulfamerazine, and a mixture of sulfamerazine with sulfaguanidine were fed to apparently normal fingerlings of brook trout (Salvelinus fontinalis), brown trout (Salmo trutta), and rainbow trout (Salmo gairdneri). None of these drugs had any growth-affecting influence on rainbow trout.
S. F. Snieszko, E. M. Wood
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A FUNCTIONAL MODEL OF RADIOCESIUM TURNOVER IN BROWN TROUT
Ecological Applications, 1997We describe a mechanistic model to explore the environmental and metabolic determinants of radiocesium kinetics in a freshwater fish, the brown trout (Salmo trutta). Our model, which incorporates submodels for fish growth, food consumption, ambient temperature, and radiocesium turnover, was validated and calibrated to observations in three year-classes
Olga Ugedal +2 more
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