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Age Growth And Maturity Of Thirteen Species Of Fish From Lake Oahe During The Early Years Of Impoundment 1963 68
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Book Synopsis Age, Growth, and Maturity of Thirteen Species of Fish from Lake Oahe During the Early Years of Impoundment, 1963-68 by : William Roland Nelson
Download or read book Age, Growth, and Maturity of Thirteen Species of Fish from Lake Oahe During the Early Years of Impoundment, 1963-68 written by William Roland Nelson and published by . This book was released on 1974 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: The body-scale relation, calculated length, length-weight relation, age at maturity, and sex ratio of 13 major species collected at Lake Oahe from 1963 to 1968 with trap nets and bottom trawls are described. Eight species grew at a faster rate than has been recorded in other Missouri River reservoirs: goldeye, bigmouth buffalo, smallmouth buffalo, white bass, black crappie, white crappie, walleye, and freshwater drum. Four species grew at rates similar to those recorded from other Missouri River reserviors: carp, yellow perch, northern pike, and sauger. One species -- river carpsucker -- grew slower than in other waters. Growth generally was excellent for all major species in the early years of impoundment (1959-62) but then declined. Although inundation of new lands was associated with rapid growth of fishes in the early years of impoundment, water level fluctuations during the growing season had no discernable effect on growth rate. Increased average reservoir depth, which decreased the amount of littoral area, was associated with decreased fish growth.
Book Synopsis Age, Growth, and Maturity of Thirteen Species of Fish from Lake Oahe During the Early Years of Impoundment, 1963-68 by : William P. Nelson
Download or read book Age, Growth, and Maturity of Thirteen Species of Fish from Lake Oahe During the Early Years of Impoundment, 1963-68 written by William P. Nelson and published by . This book was released on 1974 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Age, Growth and Maturity of Thirteen Species of Fish from Lake Oahe During the Early Years of Impoundment, 1963-68 by : William R. Nelson
Download or read book Age, Growth and Maturity of Thirteen Species of Fish from Lake Oahe During the Early Years of Impoundment, 1963-68 written by William R. Nelson and published by . This book was released on 1974 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Clinical Methods for the Assessment of the Effects of Environmental Stress on Fish Health by : Gary A. Wedemeyer
Download or read book Clinical Methods for the Assessment of the Effects of Environmental Stress on Fish Health written by Gary A. Wedemeyer and published by . This book was released on 1977 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clinical methods are presented for biological monitoring of hatchery and native fish populations to assess the effects of environmental stress on fish health. The choice of methods is based on the experience of the authors and the judgment of colleagues at fishery laboratories of the U.S. Fish and Wildlife Service. Detailed analysis methods, together with guidelines for sample collection and for the intrepretation of results, are given for tests on blood (cell counts, chloride, cholesterol, clotting time, cortisol, glucose, hematocrit, hemoglobin, lactic acid, methemoglobin, osmolality, and total protein); water (ammonia and nitrate content); and liver and muscle (glycogen content).
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 Chemical Forest Fire Retardants by : W. Waynon Johnson
Download or read book Chemical Forest Fire Retardants written by W. Waynon Johnson and published by . This book was released on 1977 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Toxicities of four chemical forest fire retardants, Fire-Trol 100 and 931 (ammonium sulfate, or polyphosphate with an attapulgit clay thickner) and Phos-Chek 202A and 259 (diammonium phosphate with guar gum derivative thickner) were determined by static and flow-through toxicity tests for fry and fingerling coho salmon and rainbow trout; fingerling fathead minnows, bluegills, and largemouth bass; and mature scuds. In static tests, Phos-Chek formulations were more toxic than either of the Fire-Trol formulations to scuds and all life stages of fish. In salmon and trout, fry were generally more susceptible than fingerlings to all formulations; yolk-sac fry were more susceptible than swim-up friy. Toxicities of all formulations to salmon and trout were similar at 6 to 11 degress centigrade. Un-ionized ammonia is believed to be the most toxic component of thes fire retardants.
Book Synopsis Abundance, Composition, and Distribution of Crustacean Zooplankton in Relation to Hypolimnetic Oxygen Depletion in West-central Lake Erie by : Roy F. Heberger
Download or read book Abundance, Composition, and Distribution of Crustacean Zooplankton in Relation to Hypolimnetic Oxygen Depletion in West-central Lake Erie written by Roy F. Heberger and published by . This book was released on 1977 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Samples of crustacean zooplankton were collected monthly in west-central Lake Erie in April and June to October 1968, and in July and August 1970, before and during periods of hypolimnetic dissolved oxygen (DO) depletion. The water column at offshore stations was thermally stratified from June through September 1968, and the hypolimnion contained no DO in mid-August of 1968 or 1970. Composition, abundance, and vertical distribution of crustacean zooplankton changed coincidently with oxygen depletion. Zooplankton composition shifted from mainly cyclopoid copepods in July to mainly cladocerans and copepod nauplii in middle to late August. We believe that mortality of adults and dormancy of copepodites in response to anoxia was the probable reason for the late summer decline of planktonic C. b. thomasi.
Book Synopsis Ecological Effects of Dredging and Dredge Spoil Disposal by : James Walter Morton
Download or read book Ecological Effects of Dredging and Dredge Spoil Disposal written by James Walter Morton and published by . This book was released on 1977 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of this study was to prepare a comprehensive review of the literature on the physical, chemical, and biological effects of dredging and spoil disposal in estuaries and to identify alternative spoil disposal methods. Specific objectives were to identify the most critical problems relating to dredging and spoil disposal and to summarize the progress made to date in solving these problems. Using literature search facilities, bibliographies, and communications with experts throughout the United States, about 520 scientific and technical articles on dredging and spoil disposal were screened. Information extracted from selected articles is included in this review.
Book Synopsis Biology of the Redtail Surfperch (Amphistichus Rhodoterus) from the Central Oregon Coast by : Donald E. Bennett
Download or read book Biology of the Redtail Surfperch (Amphistichus Rhodoterus) from the Central Oregon Coast written by Donald E. Bennett and published by . This book was released on 1977 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Data on certain aspects of the life history of the redtail surfperch were collected along the central coast of Oregon, from April 1967 through April 1969. Annulus formation occured during February through June, usually earlier in young than in older fish. Mating occurred from late December to early January, and the young were born from July through September. The number of embryos per female ranged from 1 to 39 (mean 13.3) and increased linearly with the length and weight of the females. Food of the fish from the surf zone included crustaceans (by far the most important group in both frequency of occurrence and total volume) and (in order of decreasing importance) fishes, mollusks, and polychaetes. Parasites of the redtail surfperch were immature nematodes (Anisakinae) ; the digenetic trematode Genitocotyle acirra; the monogenetic trematode, Diclidophora sp.; and the copepods, Caligus sp., Clavella sp., and Argulus catostomi.
Book Synopsis Acrolein, Dalapon, Dichlobenil, Diquat, and Endothal by : Leroy C. Folmar
Download or read book Acrolein, Dalapon, Dichlobenil, Diquat, and Endothal written by Leroy C. Folmar and published by . This book was released on 1977 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Toxicity tables for the herbicides acrolein, dalapon, dichlobenil, diquat, and endothal list the test organisms, types of tests, experimental conditions, and test results. Each table is followed by a list of references. The materials provide a useful source of toxicity data on these herbicides to researchers, regulatory agencies, and manufacturers.
Book Synopsis Reproduction of Spotted Bass, Micropterus Punctulatus, in Bull Shoals Reservoir, Arkansas by : Louis E. Vogele
Download or read book Reproduction of Spotted Bass, Micropterus Punctulatus, in Bull Shoals Reservoir, Arkansas written by Louis E. Vogele and published by . This book was released on 1975 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spotted bass, Micropterus punctulatus, were studied in Bull Shoals Reservoir during 1966-71 to determine some of the environmental requirements for successful spawning and to estimate the reproductive potential of the species.
Book Synopsis Immune Response and Antibody Characterization of the Channel Catfish (Ictalurus Punctatus) to a Naturally Pathogenic Bacterium and Virus by : Charles M. Heartwell
Download or read book Immune Response and Antibody Characterization of the Channel Catfish (Ictalurus Punctatus) to a Naturally Pathogenic Bacterium and Virus written by Charles M. Heartwell and published by . This book was released on 1975 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Partial antibody characterization indicates that specific channel catfish immunoglobulins are macroglobulins with characteristics like those of most fish immunoglobulins and similar to those of human immunoglobulin-M.
Book Synopsis Ecology of Larval Fishes in Lake Oahe, South Dakota by : William Roland Nelson
Download or read book Ecology of Larval Fishes in Lake Oahe, South Dakota written by William Roland Nelson and published by . This book was released on 1980 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: The time and location of spawning, food and larvae, and habitats used as nursery areas by young-of-the-year fishes were studied from 1972 to 1975 in South Dakota waters of Lake Oahe, a main stem Missouri River reservoir. Sampling locations were in the tributary rivres -- the Grand Moreau, and Cheyenne -- and their embayments. Year-class strength of river-spawning species was strongly correlated with river flow rates during the spawning season. Success of reservoir-spawning species was primarily dependent on above-average water levels, which inundated terrestrial vegetation to provide a substrate for egg deposition and cover for larvae. Preserving adequate streamflow and enhancing reservoir shoreline areas by managing water levels, seeding vegetation, and eliminating grazing alongshore would probably ensure adequate reproduction of most areas.
Book Synopsis Lake Francis Case, a Missouri River Reservoir by : Charles H. Walburg
Download or read book Lake Francis Case, a Missouri River Reservoir written by Charles H. Walburg and published by . This book was released on 1977 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Studies conducted during the first 23 years of impoundment of Lake Francis Case indicated that fish abundance in the early 1970's was about half of that in the late 1950's. Of 39 species collected, 12 were abundant in the 1950's and 8 in the 1970's, but only 4 were abundant throughout the impoundment period.
Download or read book Sport Fishery Abstracts written by and published by . This book was released on 1975 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An annotated bibliography of the rare fishes of the Upper Missouri River System by : Timothy W. Joseph
Download or read book An annotated bibliography of the rare fishes of the Upper Missouri River System written by Timothy W. Joseph and published by . This book was released on 1977 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book FWS/OBS. written by and published by . This book was released on 1977 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
