Hopkins Marine Station Student Paper

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(full paper is archived in the Miller Library)

Title: The initiation and spread of activiation of the iridophore cells in the squid, Loligo opalescens
Student Author(s): Cholon, Annette
Faculty Advisor(s): Thompson, Stuart
%E Gilly, William
Pages: 17
Location: Final Papers Biology 175H
Date: June 1987
Keywords: biology of cephalopods
Abstract: The squid Loligo opalescens exhibits iridescent colors in its third dermal layer through the action of a specific cell type, the iridophore. Although much is known about the neural control of the squids' pigmented chromatophore organs, little is known about the action of the iridophore cells, other than the neurotransmitter acetylcholine is responsible for their activation. This paper sets out to examine the possible mechanism of ACh delivery to the iridophore cells, through an analysis of the activation and spread of iridescence in response to electrical stimulation.