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Experimental interbreeding between Atlantic and Pacific populations of the marine calanoid copepod Acartia clausi Giesbrecht

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 and Pacific populations of A. clausi
have diverged enough to become reproductively isolated. Assignment
of specific rank to differentiate both populations is suggested.
Some morphological and ecological differences between Atlantic
and Pacific populations of A. clausi were observed. Further studies
are proposed to evaluate the constancy of these differences, and their
possible use for the recognition of Pacific and Atlantic A. clausi.
Observations are presented on the general problems of copepod
culture work. / Graduation date: 1974

Identiferoai:union.ndltd.org:ORGSU/oai:ir.library.oregonstate.edu:1957/28307
Date27 August 1973
CreatorsCarrillo Barrios-Gomez, Enrique
ContributorsMiller, Charles B.
Source SetsOregon State University
Languageen_US
Detected LanguageEnglish
TypeThesis/Dissertation

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