Effects of predation by fathead minnows, Pimephales promelas, on planktonic communities in small, eutrophic ponds
By: by Louis A. Helfrich.
Published: 1976
Language: eng
Number of pages: 59
Subjects: Fathead minnow -- Ecology.; Plankton -- Ecology.; Plankton populations.; Pond ecology.; Predation (Biology)
Notes: Thesis (Ph. D.)--Michigan State University, 1976.

Includes bibliographical references (leaves 53-57).

Photocopy. Ann Arbor, Mich. : University Microfilms International, 1977. 21 cm.