Hopkins Marine Station Student Paper

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(full paper is archived in the Miller Library)

Title: A study of the vesicomyid clams in the Monterey Bay Canyon: time lapse video analysis of adult reactions to varying sulfide levels, and examination of egg buoyancies and flotation rates
Student Author(s): Meyer, Ben J.
Faculty Advisor(s): Baxter, Charles H.
Pages: 17
Location: Final Papers Biology 175H
Date: June 1993
Abstract: This experiment was designed to study different aspects of development and behavior of the vesicomyid clams in the cold seeps of the Monterey Canyon. It consisted of two parts, a behavioral study done using time-lapse video and a study of the effects simulated cold seep conditions had on the gametes of the clams. The first portion of the project, the behavioral study, only allowed for developmental progress and gave inconclusive results, so it was discussed in this paper beyond pertinant information in the introduction. The second portion of the project and the focus of this paper consisted of testing the egg buoyancy of the eggs of different species. The majority of conclusive data comes from C. pacifica, although some conclusions were available from the vesicomyid species known as "Sharpbutt" also. A significant discovery in regards to condition of the eggs was that a mucous cloud released with the eggs during experimental spawning and dissecting procedures greatly changed results when compared to those of clean, free eggs. The implications this information holds for egg survivorship and a specific environment of embryonic and larval development remains speculative.