Infectious pancreatic necrosis (IPN) is an acute, contagious disease of trout fry
and fingerlings caused by viruses of the family birnaviridae. IPN disease usually results
in mortality that is inversely proportional to the age of the fish. While many studies
have been carried out to increase our understanding of IPN,...
Brook trout (Salvelinus fontinalis) populations currently exist in less than half of their historic range in the state of New Jersey. The remaining populations are confined to the northwestern part of the state in the Highlands, Appalachian Ridge and Valley, and Piedmont physiographic provinces, with the exception of Mason's Run,...
Results of this study suggest that laboratory growth of full-sib families of five month old Pacific oyster spat can be predictive of growth to market size at different grow-out sites. Seven to ten millimeter spat were selected from each of fifteen full-sib families and commercially available polyploids. Each family was...
The occurrence of relatively less permeable soil underlying a
relatively more permeable and shallow soil profile is widespread in
the Willamette Valley Region of Oregon. Recognizing that an understanding
of the water transport process in such a situation would
provide reliable criteria for designing a drainage system has led to...
We use qualitative and quantitative methods to explore social and spatial relationships between land ownership and forest cover in the Oregon Coast Range. Using a Geographic Information System (GIS) and regression analysis, we tested for spatial relationships between the structure of land ownership and forest cover across 66 watersheds in...
A procedure was developed for the isolation and maintenance
of isolated abdomina of the cockroach, Leucophaea maderae. The
degree of injury and loss of body fluid was best minimized by ligating
the animals immediately following the final molt. The nutritional
needs of the isolates were satisfied by filling the animals'...