نتایج جستجو برای: caspian brown trout

تعداد نتایج: 62692  

2015
Alastair Thorne Alasdair I. MacDonald Joseph L. Thorley

Ferox Trout are large, long-lived piscivorous Brown Trout (Salmo trutta). Due to their exceptionally large size, Ferox Trout are highly sought after by anglers while their life-history strategy, which includes delayed maturation, multiphasic growth and extended longevity, is of interest to ecological and evolutionary modelers. However, despite their recreational and theoretical importance, litt...

Journal: :Aquatic toxicology 2013
Jes Jessen Rasmussen Ulrik Nørum Morten Rygaard Jerris Peter Wiberg-Larsen Esben Astrup Kristensen Nikolai Friberg

In this study, we aimed to evaluate the effects of a short pulse exposure of the pyrethroid lambda-cyhalothrin (LC) on the predator and anti-predator behaviour of the same species; Gammarus pulex. Predator behaviour, at the level of the individual, was studied in indoor microcosms using video tracking equipment during simultaneous exposure of the predator (G. pulex) and its prey (Leuctra nigra)...

A. Zafariian, I. Karimi, M. Adel, M.Y. Ina-Salwany, S. Yeganeh,

The main objective of this study was to evaluate the pathogenicity of isolated   Yersinia ruckeri  from Caspian trout. Y. ruckeri specimens were isolated from infected rainbow trout farms located in north of Iran. The identification was confirmed by biochemical tests and 16s rRNA gene sequencing. The pathogenicity test was carried out to determine the virulence of the Y. ruckeri by IP injection...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2011
Seth J Wenger Daniel J Isaak Charles H Luce Helen M Neville Kurt D Fausch Jason B Dunham Daniel C Dauwalter Michael K Young Marketa M Elsner Bruce E Rieman Alan F Hamlet Jack E Williams

Broad-scale studies of climate change effects on freshwater species have focused mainly on temperature, ignoring critical drivers such as flow regime and biotic interactions. We use downscaled outputs from general circulation models coupled with a hydrologic model to forecast the effects of altered flows and increased temperatures on four interacting species of trout across the interior western...

H.R. Alizadeh Sabet, M. Pourkazemi, M. Sadeghizadeh, M.R. Kalbassi,

Caspian trout (Salmo trutta caspius Kessler, 1877) as endemic migratory fish, possessing great ecological economic and biodiversity value. Among the habitat drivers, temperature related effects on the genome were considered in this research. During the embryonic developmental stages, genomic alterations of single cells were assessed by Comet assay. After artificial propagation of wild broodstoc...

2013
MICHAEL J. JAKOBER THOMAS E. MCMAHON RUSSELL F. THUROW CHRISTOPHER G. CLANCY

—We used radiotelemetry and underwater observation to assess fall and winter movements and habitat use by bull trout Salvelinus confluentus and westslope cutthroat trout Oncorhynchus clarki lewisi in two headwater streams in the Bitterroot River drainage, Montana, that varied markedly in habitat availability and stream ice conditions. Bull trout and cutthroat trout made extensive (.1 km) downst...

2016
Alastair Thorne Alisdair I. MacDonald Joseph L. Thorley

BACKGROUND Ferox Trout are large, long-lived piscivorous Brown Trout (Salmo trutta). Due to their exceptionally large size, Ferox Trout are highly sought after by anglers while their life-history strategy, which includes delayed maturation, multiphasic growth and extended longevity, is of interest to ecological and evolutionary modelers. However, despite their recreational and theoretical impor...

2006
Matthew Albright

Otsego Lake (Otsego County, NY), of glacial origin, forms the headwaters of the Susquehanna River. It is a deep (50.5 m max) dimictic waterbody of 4,167 acres having a catchment of 46,482 acres. The lake serves as the potable water supply of Cooperstown and it is noted for its cold water fishery, which includes native lake trout and whitefish as well as stocked brown trout and Atlantic salmon. ...

2010
Matthew Albright

Otsego Lake (Otsego County, NY), of glacial origin, fonns the headwaters of the Susquehanna River. It is a deep (50.5 m max) dimictic waterbody of4,167 acres having a catchment of46,482 acres. The lake serves as the potable water supply for the Village of Cooperstown and it is noted for its cold water fishery, which includes native lake trout and whitefish as well as stocked brown trout and Atl...

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