Hopkins Marine Station Student Paper

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(full paper is archived in the Miller Library)

Title: Aggressive behavior in, adult longevity of, and anatomy of mouth parts of Tigriopus californicus Baker (Harpacticoid copepod)
Student Author(s): Tearse, James Edward
Faculty Advisor(s): Abbott, I
Pages: 29
Location: Final Papers Biology 175H
Date: June 1977
Keywords: high tide pools
Abstract: Simple behavior responses in the presence of the same or a different sex appear to take place in Tigriopus californicus Baker among males and appears to be inversely related to surface area and not volume. Among males, encounter including touching for longer than two seconds and copulating pairs with another animal whether male or female were common. Females alone showed no antagonistic behavior. In longevity studies, gravid females outlived non-gravid females and outlived males, the latter dying in half to greater than half the period shown by gravid females. Finally, an anatomy of mouth parts is shown in illustrations drawn to scale, and indicates distinct differences in a number of structures that may be of taxonimic significance.