Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16782
Effects of environmental pH and calcium on ammonia toxicity in channel catfish
The twenty-four-hour median lethal concentrations (24-hour LC50) of total ammonia nitrogen (TA-N) to channel catfish (Ictalurus punctatus) at pH 7, 8, and 9 (total hardness, 40 mg/liter; temperature, 21–25 C) were 263.6 ± 11.3 (SE), 38.8 ± 1.8, and 4.5 ± 0.2 mg/liter, respectively. The 24-hour LC50 of un-ionized ammonia nitrogen (UIA-N) concentration at pH 8 was significantly higher (1.82 ± 0.06 m
Authors
J.R. Tomasso, C. A. Goudie, B.A. Simco, K. B. Davis
Is nothing sacred?
N-sodium-N-chloro-rho-toluenesulfonamide (chloramine-T) effectively controls bacterial gill disease (BGD) in cultured fishes, BGD, a common disease of hatchery-reared salmonids, causes more fish losses than any other disease among these species, This study describes a liquid chromatographic (LC) method that is capable of direct, simultaneous analysis of chloramine-T and its primary degradation pro
Authors
G. L. Hoffman
The California condor in Baja California, Mexico
No abstract available.
Authors
S.R. Wilbur, L.F. Kiff
The eightieth Audubon Christmas bird count. 391. Ocean City, Md
No abstract available.
Authors
C.S. Robbins
[Book review] Ten-year Index to the Journal of Wildlife Management (Volumes 31-40, 1967-1976), by Thomas G. Scott et al
No abstract available.
Authors
L. F. Stickel
South Louisiana crude oil and DDE in the diet of mallard hens: Effects on reproduction and duckling survival
No abstract available.
Authors
L.D. Vangilder, T.J. Peterle