Periodic determinations of plasma hormone levels suggested that changes in interrenal activity are unrelated to changes in thyroidal or gonadal activity during development (smoltification) of juvenile coho salmon (Oncorhynchus kisutch). Moreover, in an experiment where fish were reared under various conditions of crowding and water inflow rate, it appeared that...
In Artemia salina nauplii acclimated in 0.25 M, 0.5 M, 1.0 M, 1.5 M,
2.0 M, and 2.5 M NaCl incorporation of ¹⁴CO₂ into free amino acids was
greatly stimulated in the higher salinities. The ¹⁴C label was found in
aspartic acid, serine, glutamic acid, proline and alanine.
Hypersalinity also...
The purpose of the project was to demonstrate, evaluate, and quantify the effectiveness of Best Management Practices (BMP's) adopted in 1978 (2) by Gilliam, Morrow, Sherman, Umatilla, and Wasco County Soil and Water Conservation Districts
(SWCD's), Oregon (Map 1). These demonstrations and evaluations were designed to reduce landowner uncertainties concerning...
TRIALS OF FORM: TWO ESSAYS ON VARIOUS SELVES: I. Letters from Ruth: Since the 1950s, my grandmother's children have been
scattered across the nation from the family farm in Iowa. My
family came to Oregon in the early '60s. Since then, my
grandmother has kept track of all her children...
Models of weed communities aid in the development of
weed management strategies and elucidate the processes
and mechanisms that regulate plant populations and
communities. A conceptual weed community model was
developed to organize key regulatory life-history
processes. Specific investigations focused on the
processes of plant growth and competition, and
relationships...