Euphausiids constituted the major food of five co-occuring species of rockfishes (Sebastes spp.). Copepods, decapods, cephalopods, amphipods, fishes and other pelagic prey were also consumed but were
less important to the overall diet. Two species, S. flavidus and S. diploproa, were relatively euryphagous, utilizing a high number of prey taxa....
Past disasters such as mercury poisoning in Minimata, and new problems such as tributyltin impacts on shellfish have maintained public concern about problems caused by chronic discharges of hazardous materials into marine waters (Clark, 1986; U.S. Congress, 1987). However, hazardous chemical spills in coastal waters typically escape public attention. Unlike...
Most recent research on stream amphibians in the Pacific Northwest has focused on associations with reach-level or stand-level environmental features. Little is known about landscape-level distributions of these species or landscape-level aspects of their life-histories. I used a watershed-wide sample and logistic regression to develop models and maps of probability...
This phenomenological inquiry explored the experiences of library leaders and discipline faculty members engaging in a collaborative instructional change initiative focused on a process-based learning pedagogy and led by an academic library. The investigation’s purpose was providing insight and understanding concerning the: (a) library’s role in instructional leadership; (b) experience...
This study compares and evaluates wheat acreage responses among production systems in Oregon and Washington and between this region and estimated national average wheat acreage response. Oregon and Washington are disaggregated into five regions each on the basis of general similarity in soil, climate, substitute crops and production structures. Regional...
Published May 1979. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published March 1978. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Alfalfa hay yields in Central Oregon are only about one-half of their potential level. Annual yields of 4 to 5 tons per acre have been considered to be very good, but if the best known establishment and management practices are conscientiously applied, much higher yields are possible. Studies done at...