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184936 results.

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Page 6197, results 154901 - 154925

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Nematode parasites of waterfowl (Anseriformes) from western United States
M.E. McDonald
1974, Wildlife Disease 19-19
Thirty-four species of nematodes were found in 415 Anseriformes (Anatidae) of 27 species; 93.7% of birds over 4 weeks old were infected. Data on prevalence, host specificity, age of host, and geographic distribution are given. Infections were more intense in sick birds and birds in poor physical condition. Accidental or...
The sea lamprey and its control
R. Saalfeld, J.H. Howell
1974, Book chapter, Michigan Fisheries Centennial Report, 1873-1973, No. 6
Abstract not submitted to date...
Nitrogen and phosphorus balance of grass carp, Ctenopharyngodon idella, fed elodea, Egeria denea
J.G. Stanley
1974, Transactions of the American Fisheries Society (103) 587-592
The herbivorous grass carp fed winter elodea exhibited a negative nitrogen balance in metabolism, suggesting that food having a higher protein content would be required for normal growth. About a third of the phosphorus contained in food was retained; hence, a combination of aquatic plants and grass carp might afford...
Coastal Vegetation
W. L. Halvorson, C.G. Dawson
1974, Book chapter, Coastal and Offshore Environmental Inventory, Cape Hatteras to Nantucket Shoals.
No abstract available at this time...
Effect of acclimation temperature and heat shock on vulnerability of fry of lake whitefish (Coregonus clupeaformis) to predation
Thomas G. Yocom, Thomas A. Edsall
1974, Journal of the Fisheries Research Board of Canada (31) 1503-1506
Fry of lake whitefish (Coregonus clupeaformis) acclimated to 10, 15, and 18 C were exposed to temperatures of 24.5, 25, and 28 C for 1 min and then immediately returned to water at their acclimation temperature, in test tanks containing yearling yellow perch (Perca flavescens). The number of attacks on the fry and...