Theses and Dissertations


Title: Oxygen consumption, temperature tolerance, and filtration rate of the introduced Asiatic clam Corbicula manilensis from the Tennessee River

Name: Habel, Martin L.

Degree: MS

Chair: Dr. E.W. Shell

Resides: FAA Library

University: Auburn

Location: Auburn, Alabama

Date: 1970

Pages: 102

Keywords: Oxygen Consumption,Temperature Tolerance,Filtration Rate,Asiatic Clam,Corbicula manilensis,Tennessee River.

Abstract:

The introduced Asiatic clam, Corbicula manilensis, has been reported to be a nuisance in this country, but it has a number of beneficial attributes. Further knowledge of the biology of the clam is a prerequisite to its utilization or control. Three physiological parameters (oxygen consumption, temperature tolerance, and filtration rate) were measured. Oxygen consumption was estimated using a flow-through system. The average 4-year-old clam was found to consume approximately 90.5 micrograms of oxygen per hour at 27.4o+1oC. These data were used to explain some aspects of the ecology of the animal. Temperature tolerance was investigated using both shock and acclimation techniques. The upper lethal temperature was found to be approximately 38oC. It was shown that acclimation was a factor in survival. The filtration rate was estimated by measuring the reduction in phytoplankton with a photometric method. The approximate filtration rate for clams averaging 33 mm in length and 1.2 grams in wet tissue weight was 11 ml per hour. An additional experiment attempting to use Corbicula as a biofilter in aquaculture appeared promising, however, it had to be discontinued due to mortality caused by high water temperatures in the experimental plastic pools.

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