Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16964
Effects of medium composition on the growth of two fish pathogens, Cytophaga columnaris and Cytophaga psychrophila Effects of medium composition on the growth of two fish pathogens, Cytophaga columnaris and Cytophaga psychrophila
No abstract available.
Authors
R. C. Cipriano, J.D. Teska
Hatchery performance of six Atlantic salmon stocks from fry to smolt Hatchery performance of six Atlantic salmon stocks from fry to smolt
Atlantic salmon (Salmo salar) from four Penobscot River, Maine, brood stocks (two wild and two captive) and two landlocked brood stocks (Grand Lake, Maine, and Lake George, New York) were evaluated in hatchery tests to measure differential performance characteristics. Each stock was received as eyed eggs and cultured under standardized rearing conditions through 16 months. Penobscot...
Authors
H. L. Kincaid
Changes in cortisol dynamics in wild and hatchery-reared juvenile coho salmon (Oncorhynchus kisutch) during smoltification Changes in cortisol dynamics in wild and hatchery-reared juvenile coho salmon (Oncorhynchus kisutch) during smoltification
No abstract available.
Authors
J. M. Shrimpton, N.J. Bernier, D.J. Randall
Observations on the occurrence of bacterial gill disease and amoeba gill infestation in rainbow trout cultured in a water recirculation system Observations on the occurrence of bacterial gill disease and amoeba gill infestation in rainbow trout cultured in a water recirculation system
Spontaneous outbreaks of bacterial gill disease (BGD) occurred in 17-44-g rainbow trout Oncorhynchus mykiss after they were placed in a water recirculation system. In each of five groups stocked from September 1991 through July 1992, BGD occurred within 6–8 d after stocking. In each instance, BGD was followed by a secondary amoeba infestation. The spontaneous BGD outbreaks did not occur...
Authors
G. L. Bullock, R. Herman, J. Heinen, A. Noble, A. Weber, J. Hankins
Quantitative comparison of the stress response of striped bass Quantitative comparison of the stress response of striped bass
No abstract available.
Authors
E.J. Noga, J.H. Kerby, W. King, D.P. Aucoin, F. Giesbrecht
Duration of protection against Aeromonas salmonicida brook trout immunostimulated with glucan or chitosan by injection or immersion Duration of protection against Aeromonas salmonicida brook trout immunostimulated with glucan or chitosan by injection or immersion
Brook trout (Salvelinus fontinalis) were given the immunostimulants glucan or chitosan by single injections or by a 30‐min immersion to induce protection against the fish disease furunculosis. At 1, 2, 3, 7, 14, 21, and 28 d after immunostimulation, sublots from these groups were challenged by a 1‐min bath exposure to a 48‐h culture of Aeromonas salmonicida. All four groups showed high...
Authors
D. P. Anderson
Effect of subatmospheric pressure on the performance of an automated packed-column nitrogen desorption system Effect of subatmospheric pressure on the performance of an automated packed-column nitrogen desorption system
A portable vacuum degasser was developed to satisfy seasonal hatchery pretreatment needs. Dissolved-gas pressures in water exiting a packed column were regulated automatically with a unique feedback control loop incorporating a gasometer, pressure transducer, electronic (PID) controller and an electrically actuated pump discharge valve. The flow capacity of the system was 160 l/min with...
Authors
Barnaby J. Watten, W. J. Ridge, Vincent A. Mudrak
Endocrine control of cartilage growth in coho salmon: GH influence in vivo on the response to IGF-I in vitro Endocrine control of cartilage growth in coho salmon: GH influence in vivo on the response to IGF-I in vitro
No abstract available.
Authors
P.I. Tsai, Steffen S. Madsen, S. D. McCormick, H. A. Bern
Population structure of eastern oysters (Crassostrea virginica) inhabiting the Laguna Madre, Texas, and adjacent bay systems Population structure of eastern oysters (Crassostrea virginica) inhabiting the Laguna Madre, Texas, and adjacent bay systems
No abstract available.
Authors
T.L. King, R. Ward, E.G. Zimmerman
History of early diet development in fish culture, 1000 B.C. to A.D. 1955 History of early diet development in fish culture, 1000 B.C. to A.D. 1955
This paper traces the observations and speculations of early fish culturists as they sought to define the feeds necessary to keep hatchery fish alive. Although prescientific ideas about feeding fish existed in Egypt and China over three millennia ago, it was not until the 1700s that scientific studies of feeding and digestion by fish were documented. Aside from several books that...
Authors
G. L. Rumsey
Environmental contaminants in redheads wintering in coastal Louisiana and Texas Environmental contaminants in redheads wintering in coastal Louisiana and Texas
Whole body and liver analyses indicated that wintering redheads (Aythya americana; n = 70) in coastal Louisiana (one site) and Texas (two sites) were relatively free of contamination with common trace elements, organochlorines, and hydrocarbons. Most trace elements, including As, Cr, Hg, Mg, Mn, Ni, Pb, Se, Sr, and Zn, were within background concentrations in livers; levels of B, Cd, Cu...
Authors
T.C. Michot, T. W. Custer, A.J. Nault, C. A. Mitchell
Trace elements in canvasbacks (Aythya valisineria) wintering in Louisiana, USA, 1987-1988 Trace elements in canvasbacks (Aythya valisineria) wintering in Louisiana, USA, 1987-1988
We determined trace element concentrations in livers of canvasbacks (Aythya valisineria) collected at Catahoula Lake and the Mississippi River Delta, Louisiana during, the winter of 1987–1988. Forty percent of canvasbacks wintering at Lake Catahoula had elevated concentrations of lead (>6·7 μg g−1 dry weight) in the liver; 33% had concentrations consistent with lead intoxication (>26·7...
Authors
Thomas W. Custer, William L. Hohman