Hopkins Marine Station Student Paper

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(full paper is archived in the Miller Library)

Title: Uptake and deposition of DDT-C14 by the intertidal teleost Cebedichthys violaceus Ayres
Student Author(s): Sutton, James Edward
Faculty Advisor(s): Epel, David
Pages: 22
Location: Final Papers Biology 175H
Date: June 1969
Keywords: DDT
Abstract: A study was performed on direct uptake and deposition of DDT-C14 from seawater by the intertidal teleost Cebedichthys violaceus Ayres. It was found that theliver concentrated DDT to the greatest extent, followed by brain, gills, and muscle. After a rapid uptake during the first two hours of incubation, the rate was seen to decrease to a certain extent, possibly due to removal of most of the DDT from the water. The ability of the fish to absorb and concentrate DDT from concentrations comprable to those found in natural waters was also studied, and it was found that the total amount of DDT absorbed decreased in more dilute solutions, but that the factor of concentration greatly increased. The significance of direct uptake, from very dilute concentrations is discussed.