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The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse almost 1,000 books authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.
Filter Total Items: 975
Inorganic and organic mercury chloride toxicity to Coturnix: sensitivity related to age and quantal assessment of physiologic responses Inorganic and organic mercury chloride toxicity to Coturnix: sensitivity related to age and quantal assessment of physiologic responses
The toxicities of mercuric chloride (HgCl(,2)) and methylmercuric chloride (CH(,3)HgCl) were compared for coturnix (Coturnix coturnix japonica) from hatching to adulthood. Comparisons were based on: (1) Median lethal dosages (LD50) derived by administering single peroral and single intramuscular dosages of mercury, (2) median lethal concentrations (LC50) derived by feeding mercury for 5...
Authors
E. F. Hill
Manual for baitfish culture in the south Manual for baitfish culture in the south
No abstract available at this time
Authors
J.J. Giudice, D. L. Gray, J. M. Martin
Nutrient requirements of coldwater fishes Nutrient requirements of coldwater fishes
No abstract available at this time
Authors
G. L. Rumsey, D.L. Garling, J.E. Halver, H. A. Poston, S.J. Slinger, J.T. Windell
Responses of Raptorial Birds to Low Level Military Jets and Sonic Booms: Results of the 1980-1981 Joint U.S. Air Force-U.S. Fish and Wildlife Service Study Responses of Raptorial Birds to Low Level Military Jets and Sonic Booms: Results of the 1980-1981 Joint U.S. Air Force-U.S. Fish and Wildlife Service Study
Summary: For this study, we gathered several kinds of data to determine the likely effects of low level jets and sonic booms on nesting Peregrine Falcons and other raptors. We directly observed responses to worst case stimulus loads: responses to extremely frequent and extremely nearby jet aircraft were often minimal, seldom significant and never associated with reproductive failure...
Authors
D. H. Ellis
Synthesis and Evaluation of Avian Population and Habitat Data for West Virginia Synthesis and Evaluation of Avian Population and Habitat Data for West Virginia
No abstract available.
Authors
S.H. Anderson, C.S. Robbins, J.R. Partelow
Synthesis and Evaluation of Avian Populations and Habitat Data for Alabama Synthesis and Evaluation of Avian Populations and Habitat Data for Alabama
No abstract available.
Authors
S.H. Anderson, C.S. Robbins, J.R. Partelow
Synthesis and Evaluation of Avian Populations and Habitat Data for Pennsylvania Synthesis and Evaluation of Avian Populations and Habitat Data for Pennsylvania
No abstract available.
Authors
S.H. Anderson, C.S. Robbins, J.R. Partelow, J.S. Weske
Inhibition of ammonia and nitrite toxicity to channel catfish Inhibition of ammonia and nitrite toxicity to channel catfish
No abstract available.
Authors
J.R. Tomasso, B.A. Simco, K. B. Davis
Fungal diseases of fishes: Book 6 Fungal diseases of fishes: Book 6
No abstract available at this time
Authors
G.A. Neish, G.C. Hughes
John Wesley Powell: Soldier, Explorer, Scientist John Wesley Powell: Soldier, Explorer, Scientist
No abstract available.
Authors
Mary C. Rabbitt