Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16691
Physiological effects of handling and hauling stress on smallmouth bass
Mortalities associated with the handling and transporting (hauling) of fishes have long been a problem. Tolerance to these stressors varies greatly among species (Davis and Parker 1979; Tomasso et al. 1980; Wydoski and Wedenmeyer 1976). In most fishes, however, handling and hauling losses are caused by two major factors - activation of latent infections as a result of increased endocrine...
Authors
G.J. Carmichael, Gary Wedemeyer, J.P. McCraren, J.L. Millard
Heavy metal residues in Louisiana catfish below national averages
No abstract available.
Authors
J.B. Graves, G.U. Mayfield, D.P. Coulon, J.D. Newson
Effects of chronic dietary lead in American kestrels (Falco sparverius)
American kestrels were fed a diet containing 0, 10, or 50 ppm lead (Pb) powder for at least 5 mo. Blood delta-aminolevulinic acid dehydratase (ALAD) activity in birds receiving 50 ppm Pb was as low as 20% of controls but no significant effects were noted in packed cell volume (PCV) or hemoglobin concentration (Hb). Mean liver Pb residues in birds fed 50 ppm Pb were 1.3 and 2.4 ppm (dry...
Authors
J. Christian Franson, Louis Sileo, Oliver H. Pattee, John F. Moore
Assessing hazards of organophosphate pesticides to wildlife
No abstract available.
Authors
C. E. Grue, W. James Fleming, D.G. Busby, E.F. Hill
Organochlorine residues in Atlantic coast black-crowned night-heron eggs, 1979
Eggs of Black-crowned Night-Herons (Nycticorax nycticorax) were collected in 1979 from two colonies in North Carolina, two colonies in Rhode Island, and one colony in Massachusetts. Mean concentrations of DDE and PCBs were higher in the New England samples than in those from North Carolina, Mean concentrations of organochlorine contaminants in addled eggs collccted at two New England...
Authors
T. W. Custer, C.M. Bunck, T. E. Kaiser
Organochlorine residues in common tern eggs from nine Atlantic coast colonies, 1980
In 1980, 178 Common Tern (Sterna hirundo) eggs were collected in nine colonies from Rhode Island to North Carolina and were analyzed for organochlorines. DDE and PCBs were detected in most of the eggs. Mean concentrations of DDE and PCBs differed among colonies and seemed related to local contamination. Concentrations of DDE and PCBs in Common Tern eggs were well below those reported to...
Authors
T. W. Custer, R.M. Erwin, C. Stafford
DDE in brown and white fat of hibernating bats
Samples of brown and white fat from hibernating bats (big brown bat, Eptesicus fuscus; little brown bat, Myotis lucifugus; and eastern pipistrelle, Pipistrellus subflavus) collected in western Maryland, USA, were analysed to determine lipid and DDE content. Amounts of brown fat, expressed as percentages of total bat weight, were the same for all three species. Lipid content of brown fat...
Authors
Donald R. Clark, A.J. Krynitsky
DDT: Recent contamination in New Mexico and Arizona?
No abstract available.
Authors
Donald R. Clark, A.J. Krynitsky
Effects of dietary cadmium on mallard ducklings
Mallard (Anas platyrhynchos) ducklings were fed cadmium in the diet at 0, 5, 10, or 20 ppm from 1 day of age until 12 weeks of age. At 4-week intervals six males and six females from each dietary group were randomly selected, bled by jugular venipuncture, and necropsied. Significant decreases in packed cell volume (PCV) and hemoglobin (Hb) concentration and a significant increase in...
Authors
B. W. Cain, L. Sileo, J. C. Franson, Jeff Moore
Letter to the Editor: Hawaii's upland forests
No abstract available.
Authors
J. M. Scott, C.B. Kepler
Techniques for reintroducing cranes to the wild
No abstract available.
Authors
S.R. Derrickson, J.W. Carpenter