Download or read book The Physiological Impairment of Brown Trout Salmo Trutta and Rainbow Trout Oncorhynchus Mykiss Exposed to Metals Via the Water and Diet in the Clark Fork River Montana written by Aïda M. Farag and published by . This book was released on 1993 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1994 with total page 912 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metals Residues in Brown Trout Salmo Trutta from the Clark Fork and Little Blackfoot Rivers 1978 written by Glenn R. Phillips and published by . This book was released on 1982 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Behavioral Avoidance of a Metals Mixture by Rainbow Trout Oncorhynchus Mykiss Simulating Conditions Found in the Clark Fork River Montana written by James A. Hansen and published by . This book was released on 1993 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Sublethal Metal Exposure on Physiological Systems of Rainbow Trout Oncorhynchus Mykiss written by Howard Christopher Bailey and published by . This book was released on 1997 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Copper Avoidance and Mortality of Juvenile Brown Trout salmo Trutta in Tests with Copper sulfate treated Water from West Branch Reservoir Putnam County New York written by Barry P. Baldigo and published by . This book was released on 2001 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Assessing the Status of Rainbow Trout Oncorhynchus Mykiss Exposed to Sublethal Concentrations of Metals Using Bioindicators of Exposure and Immune System Function written by Gail Marie Dethloff and published by . This book was released on 1998 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Indirect Effects of Heavy Metals Observed in Macroinvertebrate Availability Brown Trout Salmo Trutta Diet Composition and Bioaccumulation in the Arkansas River Colorado written by David E. Rees and published by . This book was released on 1994 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metals Residues in Brown Trout Salmo Trutta from the Clark Fork and Little Blackfoot Rivers 1978 written by and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Metal Contamination on Fish Populations written by Christopher J. Durrant and published by . This book was released on 2010 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: The River Hayle is located in Mount's Bay District of Cornwall and is an area of high copper and zinc contamination resulting from a long history of mining activity dating as far back as Neolithic times. This study set out to investigate brown trout populations found throughout the river, and to examine the effect that metal contamination can have on fish populations. With metal levels at some parts of the river exceeding environmental quality standards for both copper and zinc the physiological effect that high metal contamination can have on fish was also looked at. This took the form of a series of experiments investigating the affect that copper has on sodium balance as well as its affects on fecundity and general health. Through an electrofishing survey, it was assessed that despite the toxic effects of heavy metals brown trout population still survive in the river. Three species of naive fish (roach Rutilus rutilus, brown trout Salmo trutta and the rainbow trout Oncorhynchus mykiss) were used to examine the direct effect that metal derived from the river has on sodium balance. This was done in order to asses the possibilities of stocking to such contaminated rivers. Using brown trout it was demonstrated that water from Drym (the least contaminated part of the river) had the lowest effect on sodium balance (uptake rate Na ~400nmol g-1 h-1) while the most contaminated site Godolphin had the highest affect (uptake Na -150nmol g-1 h-1). Using these two sites, a comparison was made between the three species. Although this demonstrated that river water has the same affect on sodium uptake in all species with copper inhibiting uptake in Godolphin water. The affect on the two salmonids was greater than the affect on roach, a cyprinid species.
Download or read book Exposure of Seasonally Acclimated Brown Trout Salmo Trutta to Copper in Soft Acidic Water written by Matthew William Beaumont and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Survival and Mortality of Brown Trout Salmo Trutta Exposed to in Situ Acutely Toxic Concentrations of Cadmium and Zinc written by John David Woodling and published by . This book was released on 1993 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Physiological Effects of Copper on Fresh Water Rainbow Trout Oncorhynchus Mykiss in Normoxia and Hypoxia written by Lone Pilgård and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Differences in the sensitivity of brown trout Salmo trutta L and rainbow trout Salmo gairdneri Richardson to physiological doses of cortisol written by A.D. PICKERING and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Differences in the sensitivity of brown trout Salmo trutta L and rainbow trout Salmo gairderni Richardson to physiological doses of cortisol written by A D (Alan) Pickering and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Heat Shock Proteins and Physiological Stress in Redband Rainbow Trout Oncorhynchus Mykiss Gairdneri in the South Fork John Day River Oregon written by Joseph W. Feldhaus and published by . This book was released on 2006 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of this research was to characterize thermal habitat requirements for juvenile redband steelhead trout (Oncorhynchus mykiss gairdneri) in the South Fork John Day River (SFJD), Oregon using physiological indicators of fish condition. Physiological indices of fish condition measured were whole body lipid content and heat shock proteins, specifically hsp70. Hsp70 is a family of highly conserved molecular chaperones proteins that protect cellular function by preventing irreversible protein damage. Hsp70 levels were measured in liver, white muscle, and fin tissue. This thesis includes a study of passive integrated transponder (PIT) tag handling stress in juvenile rainbow trout. PIT tags are used to identify individual fish. The objectives of the PIT tag study were to determine if there is a stress response, measured as a difference in plasma cortisol levels, between PIT tagged and non-PIT tagged rainbow trout (O. mykiss), to determine if PIT tag-related stress induces hepatic hsp70 synthesis in juvenile rainbow trout, and to examine the relation between cortisol and hsp70 levels. There was a difference in plasma cortisol six hours after tagging, with both treatment and tank effects. There were no differences detected after the 24h sampling period. Plasma cortisol levels were highly variable, but changes in plasma cortisol did not alter hepatic hsp70 levels. A laboratory experiment demonstrated that hsp70 levels increase significantly between 19 and 22ðC in both fin and liver tissue. The finding that hsp70 can be quantified in fin tissue is significant because it provides a non-lethal technique for assessing thermal stress in rare or endangered fish. The response of hsp70 in relation to temperature was sigmoid. During the summers of 2004 and 2005, a field study in the SFJD was conducted. The objectives were to: (1) determine if SFJD redband rainbow trout experience thermal stress, (2) develop a non-lethal technique for measuring cellular hsp70 levels, (3) and characterize the relation between whole body lipids and hsp70 for fish in the SFJD. Maximum hsp70 levels in liver and white muscle tissue in field collected fish occurred when mean weekly maximum temperatures (MWMT) exceeded 22-23ðC. Short and long term stream temperature averages of 15.6-18.2ðC and temperature maximums of 18.8-21.6ðC significantly increased hsp70 levels in liver tissue. Both the hsp72 and hsp73 isoforms were significantly elevated in white muscle tissue when long and short term average stream temperatures were 16-18.5ðC and 19.6-23ðC for temperature maximums. Lipid levels began to decrease when MWMT exceeded 23ðC. Results of this research suggest increased cellular hsp70 levels in juvenile redband rainbow trout in the SFJD River is symptomatic of cellular stress related to thermal conditions, as are decreasing lipid levels. Measurement of cellular hsp70 levels provides another tool that can be used to characterize physiological suitability of thermal habitat and potentially to define thermal limits, as differences of 1 or 2°C are sufficient to change expression of thermal stress proteins detected using these techniques. When using hsp70 as an index of thermal stress in different O. mykiss subpopulations, differences in hsp70 expression between tissues should be considered.
Download or read book Mercury Concentrations in Brown Trout salmo Trutta from Eastern Victorian Waterways written by G. Fabris and published by . This book was released on 2002 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
