Download or read book Ecology of Daphnia in Bull Shoals Reservoir written by Richard L. Applegate and published by . This book was released on 1969 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Life histories of Daphnia galeata mendotae, D. retrocurva, D. parvula, D. ambigua, and D. schoedleri are compared with year class strength and food of threadfin shad in Bull Shoals Reservoir from 1965 to 1967. Maximum population density of daphnids was in April, May, and June. Populations declined to insignificant densities throughout the rest of the year. Declines coincided with the inclusion of Daphnia in the diets of threadfin shad smaller than 14 mm. Declines in the summer of 1967 coincided with both young shad predation and high Leptodora kindtii density. Population changes associated with declining year class strength of threadfin shad were an increase of the large D. schoedleri and Leptodora kindtii from nondetectable or trace densities to relatively large populations, and increase from nondetectable densities of daphnids in the summer to detectable densities, and a twofold to threefold increase in the summer standing crops of Bosmina longirostris.
Download or read book Research Report Bureau of Sport Fisheries and Wildlife written by United States. Bureau of Sport Fisheries and Wildlife and published by . This book was released on 1941 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research Report written by U.S. Fish and Wildlife Service and published by . This book was released on 1964 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research Report written by and published by . This book was released on 1961 with total page 1358 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Population Ecology of the Mallard written by and published by . This book was released on 1972 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Changes in the Fish Population of Lewis and Clark Lake 1956 74 and Their Relation to Water Management and the Environment written by Charles H. Walburg and published by . This book was released on 1976 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water management of the Lewis and Clark Lake for flood control, hydroelectric power, navigation, and other purposes affected fish population levels. Fluctuating water levels in May and June affected fish spawning and survival of young. Suggested management measures may improve sport fish abundance, such as construction of spawning and nursery ponds near the reservoir or maintenance of higher water levels during May and June to enhance the reproduction opportunities for desirable species are either too costly or inconsistent with the primary flood-control function of the reservoir. Fish abundance with the present water management regimen will probably remain similar to that of the early 1970's.
Download or read book Limnetic Zooplankton Population Dynamics in Beaver and Bull Shoals Reservoirs written by Sam A. Damico and published by . This book was released on 1972 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Progress in Sport Fishery Research written by and published by . This book was released on 1970 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Resource Publication written by and published by . This book was released on 1965 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Resource Publication United States Bureau of Sport Fisheries and Wildlife written by and published by . This book was released on with total page 810 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Post impoundment Shore Modifications on Fish Populations in Missouri River Reservoirs written by Norman Gustaf Benson and published by . This book was released on 1980 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the Missouri River main stem reservoirs in Montana, North Dakota, and South Dakota, hydrodynamic processes have decreased the lengths of shorelines and changed their configurations during the first 20 to 25 years of impoundment. Physical changes to the shore probably influenced fish abundance and species composition by changing the quality and quantityt of spawning and nursery habitat.
Download or read book French Broad Tennessee Cumberland Rivers Commercial Sand and Gravel Dredging AL TN written by and published by . This book was released on 1984 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1972 with total page 802 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Department of the Interior and Related Agencies Appropriations for 1972 written by United States. Congress. House. Committee on Appropriations. Subcommittee on Department of the Interior and Related Agencies and published by . This book was released on 1971 with total page 1440 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hearings Reports and Prints of the House Committee on Appropriations written by United States. Congress. House. Committee on Appropriations and published by . This book was released on 1971 with total page 1444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Life History of the Spottail Shiner Notropis Hudsonius in Southeastern Lake Michigan the Kalamazoo River and Western Lake Erie written by LaRue Wells and published by . This book was released on 1974 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spottail shiners (Notropis hudsonius) were sampled from portions of Lake Michigan, the Kalamazoo River, and Lake Erie to determine ages, growth rate, sex ratios and life history information.
