Hopkins Marine Station Student Paper

Browse Titles | Search Citations & Abstracts

(full paper is archived in the Miller Library)

Title: Concentration of C14-DDT by a marine planktonic copepod: from seawater and from consumed phytoplankton
Student Author(s): Baumgartel, Mona
Faculty Advisor(s): Wheeler, Ellsworth H.
Pages: 22
Location: Final Papers Biology 175H
Date: June 1969
Keywords: DDT
Abstract: There has been little work done on the entrance of DDT into the marine food web at lower trophic levels. The herbivorous marine planktonic copepod Calanus helgolandicus was incubated in seawater which contained C14-DDT or phytoplankton labelled with C14-DDT. Uptake of C14-DDT directly from the water was about 10,000 times the initial concentration in 24 hours. The copepods took up more of the C14-DDT when it was present in phytoplankton.