Hopkins Marine Station Student Paper

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Title: Studies on the embryological development of the squid Loligo opalescens and its association with symbiotic sheath bacteria
Student Author(s): Nakashima, Sara
Faculty Advisor(s): Epel, David
Pages: 34
Location: Final Papers Biology 175H
Date: June 1994
Abstract: Encased within a bateria associated sheath, the embryos of the squid Loligo opalescens are able to withstand a three to five week incubation period on the ocean floor. It appears that the unidentified bacteria are symbionts of the developing embryos; the longer the association with the sheath, the further the development of the embryos. When the sheath remained, but the bacteria was removed with antibiotics, the stripped fingers showed a greater susceptibility when exposed to fungal-rich solutions. The experimental evidence suggests that the sheath bacteria are symbionts of the developing Loligo opalescens embryos.