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Interspecific Hybridization Of Esocids
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Book Synopsis Interspecific Hybridization of Esocids by : Keen Buss
Download or read book Interspecific Hybridization of Esocids written by Keen Buss and published by . This book was released on 1967 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Extension of the range of most of the esocid species has posed a problem of interspecific hybridization which could be harmful to indigenous pike species. In this paper literature is reviewd and the success of reciprocal crosses is recorded, including drawings and photographs showing the development of progeny. Fertility of some F1 hybrids was also investigated since this tow would reflect on the biological relationship of the species. It appears that even though many species can be artificially hybridized, isolating mechanisms may prevent or retard hybridization under natural conditions.
Book Synopsis Interspecific Hybridization of Esocids by : United States. Bureau of Sport Fisheries and Wildlife
Download or read book Interspecific Hybridization of Esocids written by United States. Bureau of Sport Fisheries and Wildlife and published by . This book was released on 1967 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Interspecific Hybridization of Esocids by : Allan E. Thomas
Download or read book Interspecific Hybridization of Esocids written by Allan E. Thomas and published by . This book was released on 1967 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 1962 with total page 498 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 1970 with total page 678 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 1969 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Brook Trout of Great Smoky Mountains National Park by : Robert E. Lennon
Download or read book Brook Trout of Great Smoky Mountains National Park written by Robert E. Lennon and published by . This book was released on 1967 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: The brook trout of Great Smoky Mountains National Park are relatively scarce and are found only in remote, headwater streams. They are also small and short-lived. Males outnumber females, especially among sexually mature fish. The fecundity is lower than in fish of comparable size in Wisconsin and Canadian waters. Under present conditions, any increase in exploitation of the brook trout in the Park or damaging alteration of the habitat might have serious consequences for the remanent populations.
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 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 An Acute Viral Disease of Channel Catfish by : Nilola N. Fijan
Download or read book An Acute Viral Disease of Channel Catfish written by Nilola N. Fijan and published by . This book was released on 1970 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: In epizootics of channel catfish virus diseasse (CCVD) at four widely separated fish farms in 1968, affected fry and fingerlings spiraled, hung in a vertical position with head at the surface, or were distressed. In various combinations were edema, hemorrages, and anemia. The disease had a peracute to acute course, and stress to the fish preceded most epizootics. The virus induced formation of syncytial cells in affected cultures, which is considered at present to be of diagnostic significance. Secondary bacterial infections were found in fish with CCVD. Columnaris infection masked the symptoms of the virus disease.
Book Synopsis Tests of Variations of the Abernathy Salmon Diet, 1970 by : Laurie G. Fowler
Download or read book Tests of Variations of the Abernathy Salmon Diet, 1970 written by Laurie G. Fowler and published by . This book was released on 1972 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 1970 fall chinook salmon feeding trials indicated that dry pelleted diets were equal to moist pelleted diets with similar formulations. A superior diet was produced by reducing the ratio of dried whey product and wheat germ meal to 1:1 and eliminating cottonseed meal. This formulation feed at a 45-percent protein level was more efficient than other protein levels fed. Growth was not reduced when the soybean oil supplement was lowered from 6 to 2 percent of the diet. Two corn distillers' products that were substituted as partial replacements for dried whey product did not enhance fish growth. Storage of the Abernathy dry pellet at room temperature did not alter the nutritional adequacy of the diet.
Book Synopsis Operation of Abernathy Channel for Incubation of Salmon Eggs by : Allan E. Thomas
Download or read book Operation of Abernathy Channel for Incubation of Salmon Eggs written by Allan E. Thomas and published by . This book was released on 1968 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: A spawning and incubation channel constructed in 1959 on Abernathy Creek near Longview, Washington, has been used for seasons to incubate fall chinook salmon and chum salmon eggs. Survival of eggs from both species was higher than reported for other channels and controlled-flow projects. Studies included effects of sedimentation, egg planting density, and stage of egg development at planting on survival. In early experiments sediment in the upper sections substantially reduced survival. In later experiments, after the construction of a sand trap and settling chamber, survivals significantly increased.
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.
Author :United States. Department of the Interior. Office of Library Services Publisher : ISBN 13 : Total Pages :760 pages Book Rating :4.3/5 (243 download)
Book Synopsis Dictionary Catalog of the Departmental Library by : United States. Department of the Interior. Office of Library Services
Download or read book Dictionary Catalog of the Departmental Library written by United States. Department of the Interior. Office of Library Services and published by . This book was released on 1969 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Environmental Science Information Center. Library and Information Services Division Publisher : ISBN 13 : Total Pages :438 pages Book Rating :4.3/5 (91 download)
Book Synopsis Book Catalog of the Library and Information Services Division: Subject index by : Environmental Science Information Center. Library and Information Services Division
Download or read book Book Catalog of the Library and Information Services Division: Subject index written by Environmental Science Information Center. Library and Information Services Division and published by . This book was released on 1977 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Environmental Science Information Center. Library and Information Services Division Publisher : ISBN 13 : Total Pages :444 pages Book Rating :4.3/5 ( download)
Book Synopsis Book catalog of the Library and Information Services Division by : Environmental Science Information Center. Library and Information Services Division
Download or read book Book catalog of the Library and Information Services Division written by Environmental Science Information Center. Library and Information Services Division and published by . This book was released on 1977 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Atlas of the Spawning and Nursery Areas of Great Lakes Fishes by : U.S. Fish and Wildlife Service. Office of Biological Services
Download or read book Atlas of the Spawning and Nursery Areas of Great Lakes Fishes written by U.S. Fish and Wildlife Service. Office of Biological Services and published by . This book was released on 1982 with total page 740 pages. Available in PDF, EPUB and Kindle. Book excerpt:
