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Creator:: Johnson, John Kenneth
Abstract:: In the upper estuary of Yaquina Bay, Oregon, there is an annual population explosion of Acartia tonsa, (Dana) a calanoid copepod, during the months of July, August and September, followed by a rapid decline to virtual extinction in November. The restricted estuarine distribution affords an excellent opportunity to study the...
Resource Type:: Masters Thesis
Full Text:: DYNAMICS OF AN ISOLATED POPULATION OF ACARTIA TONSA DANA (COPEPODA) IN YAQUINA BAY, OREGON dAbstract

Creator:: Carrillo Barrios-Gomez, Enrique
Abstract:: An attempt has been made to experimentally interbreed Atlantic and Pacific populations of the marine calanoid copepod Acartia clausi Giesbrecht. Breeding between individuals from each population produced many successive generations in the laboratory, but interbreeding between populations failed to produce viable offspring. This result is strong evidence that the Atlantic...
Resource Type:: Masters Thesis
Full Text:: 'Consejo Nacional de Ciencia y Tecnologia" of Medco for their support while working on my M. S. program

Creator:: Gutierrez, Jaime Gomez
Abstract:: I compare the seasonal abundance variation, population dynamics, fecundity, egg hatching mechanism and success, and apostome ciliate parasites of the euphausiids Euphausia pac?fica and Thysanoessa spinfera from the Oregon coast, USA. Community structure and nearshore distributions were examined from bi-weekly oceanographic surveys (1970-1972). This region has a strong cross-shelf change...
Resource Type:: Dissertation
Full Text:: 200 m isobath indicates the shelf-break ............... 13 2.2 Daily coastal upwelling index (CUI) m3

Creator:: Batchelder, Harold Parker
Resource Type:: Dissertation
Full Text:: below 250 m, where water temperature does not vary seasonally. The recommencement of reproduction in

Creator:: Rothlisberg, Peter Charles
Resource Type:: Dissertation
Full Text:: were extremely helpful with the response surface analysis. Eugene M. Burreson and Clayton Creech

Creator:: Peterson, William T.
Resource Type:: Dissertation
Full Text:: above 20 m and onshore below 20 m over most of the continental shelf. Off- shore flow from the

Creator:: Reed, John Cooper
Resource Type:: Masters Thesis
Full Text:: [ M, during a time step at any junction as: M = Advection ± Diffusion ± Heat transfer process

Creator:: Johnson, John Kenneth
Resource Type:: Dissertation
Full Text:: plotted for comparison. 162 65 Daily instantaneous mortality coefficients (m) for Acartia californiensis

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