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Effects Of Malathion On Two Warmwater Fishes And Aquatic Invertebrates In Ponds
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Book Synopsis Effects of Malathion on Two Warmwater Fishes and Aquatic Invertebrates in Ponds by : Harry D. Kennedy
Download or read book Effects of Malathion on Two Warmwater Fishes and Aquatic Invertebrates in Ponds written by Harry D. Kennedy and published by . This book was released on 1970 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bluegills and channel catfish were exposed to four applications of malathion at two concentrations in ponds over an 11-week summer period. Fish losses ranged from 8 to 44 percent but could not be correlated to treatment levels. Neither acute nor chronic pathology developed, nor were depressions in the brain cholinesterase activity significant or reproducible. The total number of aquatic insects from plate sampling the low-treated ponds was not significantly lower than that from the untreated ponds, but the number of organisms from the high-treated ponds was significantly lower than that from either the low-treated or untreated ponds. Chironomidae was the dominant family of aquatic insects, and formed about 70 percent of the total benthos. This group showed a significant reduction in numbers in both low- and high-treated ponds after the third application of malathion.
Book Synopsis Effects of Malathion on 2 Warmwater Fishes and Aquatic Invertebrates in Ponds [with List of References] by :
Download or read book Effects of Malathion on 2 Warmwater Fishes and Aquatic Invertebrates in Ponds [with List of References] written by and published by . This book was released on 1970 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Malathion on Two Warmwater Fishes and Aquatic Invertebrates in Ponds by : H. D. Kennedy
Download or read book Effects of Malathion on Two Warmwater Fishes and Aquatic Invertebrates in Ponds written by H. D. Kennedy and published by . This book was released on 1970 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Technical Papers of the Bureau of Sport Fisheries and Wildlife by :
Download or read book Technical Papers of the Bureau of Sport Fisheries and Wildlife written by and published by . This book was released on 1971 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fish and Wildlife Service Publications by : U.S. Fish and Wildlife Service
Download or read book Fish and Wildlife Service Publications written by U.S. Fish and Wildlife Service and published by . This book was released on 1992 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Changes in the Fish Population in Lake Francis Case in South Dakota in the First 16 Years of Impoundment by : Charles R. Gasaway
Download or read book Changes in the Fish Population in Lake Francis Case in South Dakota in the First 16 Years of Impoundment written by Charles R. Gasaway and published by . This book was released on 1970 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: The total number of adult fish in Lake Frances Case, a main steam Missouri River Reservoir, has declined since impoundment in 1952. Goldeye, channel catfish, and northern redhorse have probably remained the same; emerald shiner, white bass, walleye, and possibly flathead catfish have increased. The sauger population began to decline at about the time walleye numbers increased. Some species formerly present have become rare. Forage species in the reservoir were gizzard shad, emerald shiner, and yellow perch, but these were not present in large enough numbers to provide an abundant forage fish population.
Book Synopsis Technical Papers of the Bureau of Sport Fisheries and Wildlife by : United States. Bureau of Sport Fisheries and Wildlife
Download or read book Technical Papers of the Bureau of Sport Fisheries and Wildlife written by United States. Bureau of Sport Fisheries and Wildlife and published by . This book was released on 1966 with total page 758 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Toxicity of Some Insecticides to Four Species of Malacostracan Crustaceans by : Herman O. Sanders
Download or read book Toxicity of Some Insecticides to Four Species of Malacostracan Crustaceans written by Herman O. Sanders and published by . This book was released on 1972 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Acute and long-term (20-day) toxicities of 40 insecticides to four species of freshwater malacostracan crustaceans (the scud, crayfish, glass shrimp, and aquatic sowbug) were determined in static and intermittent-flow bioassays. An extremely wide range in toxicity was found with scuds generally being the most sensitive, followed in descending order by glass shrimp, sowbugs, and crayfish.
Book Synopsis Technical Papers by : United States. Bureau of Sport Fisheries and Wildlife
Download or read book Technical Papers written by United States. Bureau of Sport Fisheries and Wildlife and published by . This book was released on 1970 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Handbook of Acute Toxicity of Chemicals to Fish and Aquatic Invertebrates by : W. Waynon Johnson
Download or read book Handbook of Acute Toxicity of Chemicals to Fish and Aquatic Invertebrates written by W. Waynon Johnson and published by . This book was released on 1980 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis History of Salmon in the Great Lakes, 1850-1970 by : John Wilson Parsons
Download or read book History of Salmon in the Great Lakes, 1850-1970 written by John Wilson Parsons and published by . This book was released on 1973 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: This history of the salmon in the Great Lakes describes the decline and extinction of the Atlantic salmon in Lake Ontario in the 1800's; the failure to establish, by salmon culture, permanent or sizable populations of Atlantic or Pacific salmon in any of the Great Lakes in 1867-1965; and the success of plantings of coho and chinook salmon in the Great Lakes, 1966-1970 -- particularly in Lake Michigan.
Book Synopsis Aquatic Life Water Quality Criteria for Selected Pesticides by : Ronald S. Tjeerdema
Download or read book Aquatic Life Water Quality Criteria for Selected Pesticides written by Ronald S. Tjeerdema and published by Springer Science & Business Media. This book was released on 2012-02-02 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reviews of Environmental Contamination and Toxicology attempts to provide concise, critical reviews of timely advances, philosophy and significant areas of accomplished or needed endeavor in the total field of xenobiotics, in any segment of the environment, as well as toxicological implications.
Book Synopsis Verification of a Model for Predicting the Effect of Inconstant Temperature on Embryonic Development of Lake Whitefish (Coregonus Clupeaformis) by : William H. Berlin
Download or read book Verification of a Model for Predicting the Effect of Inconstant Temperature on Embryonic Development of Lake Whitefish (Coregonus Clupeaformis) written by William H. Berlin and published by . This book was released on 1977 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Eggs stripped from lake whitefish spawning in Lake Michigan were incubated in the laboratory at temperatures similar to those on whitefish spawning grounds in Lake Michigan during December-April. Observed times from fertilization to attachment of each of 21 developmental stages were used to test a model that predicts the rate of development at daily fluctuating temperatures; the model relates rate of development for any given stage j, expressed as the reciprocal of time (Rj), to temperature (T). The generalized equation for a developmental stage is Rj = abt ct[squared]. The model was used to predict the effects of small temperature increases (caused by a hypothetical waste-heat discharge) on the rate of development and time of hatching of lake whitefish eggs.
Book Synopsis Technical Papers of the U.S. Fish and Wildlife Service by :
Download or read book Technical Papers of the U.S. Fish and Wildlife Service written by and published by . This book was released on 1980 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biological Studies on the Hemoflagellates Cryptobia Cataractae and Cryptobia Salmositica by : R. E. Putz
Download or read book Biological Studies on the Hemoflagellates Cryptobia Cataractae and Cryptobia Salmositica written by R. E. Putz and published by . This book was released on 1972 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Studies on two hemoflagellates of fish were carried out to determine biological parameters: host range, vector relations, in vivo culture, in vitro culture, pathogenicit, and cryogenic preservation.
Book Synopsis Alteration Tests of the Abernathy Salmon Diet, 1971 by : Laurie G. Fowler
Download or read book Alteration Tests of the Abernathy Salmon Diet, 1971 written by Laurie G. Fowler and published by . This book was released on 1972 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Feeding trials using fall chinook salmon finglerlings were conducted at the Salmon Cultural Laboratory, Longview, Washington, during 1971 for the purpose of improving the Abernathy diet formula. The results indicated that cottonseed meal could replace a portion of the fish meal in the diet without reducing fish growth, but similar substitutions of wheat and corn gluten meal reduced growth. Fish growth was significantly increased when a diet containing 50 percent protein and 3,350 kcal per kilogram was fed as compared with a diet containing 45 percent protein and 3,350 kcal per kilogram. Soybean lecithin proved to be equal to soybean oil as a caloric source when fed at 2 percent of the diet. Two types of dried whey product with different levels of lactose content produced similar growth response. Reducing the dried whey portion of the diet to 5 percent did not affect growth, nor did methionine supplementation produce any effects. Anchovy meal was unsuitable as a replacement for herring meal.
Book Synopsis Efficacy, Toxicity, and Residues of Nifurpirinol in Salmonids by : Donald F. Amend
Download or read book Efficacy, Toxicity, and Residues of Nifurpirinol in Salmonids written by Donald F. Amend and published by . This book was released on 1972 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nifurpirinol (NFP), also know by code name P-7138, was tested for control of furunculosis, myxobacterioses, and vibriosis, and for effects on rainbow trout, coho, and chinook salmon under various conditions. Further tests are needed to verify the use of NFP for control of other bacterial diseases.
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