Abstract

Hemisquilla ensigera califomiensis is an active burrow-dwelling stomatopod crustacean common off the coast of Southern California (Basch and Engle, 1989). In this experiment I measured the typical burrow oxygen level, time taken to deplete the oxygen in an inhabited, capped burrow, and tested the hypothesis that H. ensigera, like other burrow dwellers that have been examined, is an oxyregulator; and that like crustaceans in general, they have only limited anaerobic capabilities. Contrary to expectations, I found that H. ensigera is an oxyconformer or at best a weak oxyregulator, and that the species has substantial anaerobic capacity. Since it was able to survive at least 52 hours of anoxia, it ranks among the crustaceans which have the longest anaerobic survival times.

LLU Discipline

Biology

Department

Biology

School

Graduate School

First Advisor

David L. Cowles

Second Advisor

William Hayes

Third Advisor

David Hessinger

Degree Name

Master of Science (MS)

Degree Level

M.S.

Year Degree Awarded

1997

Date (Title Page)

8-1997

Language

English

Library of Congress/MESH Subject Headings

Hemisquilla Ensigera Californiensis -- Adaptation; Decapoda (Crustacea) -- Behavior.

Type

Thesis

Page Count

vi; 34

Digital Format

PDF

Digital Publisher

Loma Linda University Libraries

Usage Rights

This title appears here courtesy of the author, who has granted Loma Linda University a limited, non-exclusive right to make this publication available to the public. The author retains all other copyrights.

Collection

Loma Linda University Electronic Theses and Dissertations

Collection Website

http://scholarsrepository.llu.edu/etd/

Repository

Loma Linda University. Del E. Webb Memorial Library. University Archives

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