Exposure tests of minnows to the human contraceptive gestodene

Four photos depecting effects of exposure of fathead minnows to gestodene

Detailed Description

Control fathead minnows (Pimephales promelas) depicted on top row with male under the breeding tile (left) and fertilized eggs deposited on tile (on right, shown standing so eggs are visible). On bottom row, gestodene exposed fish behavior was altered and egg deposition arrested.

Adapted with permission from Frankel, T.E., Meyer, M.T., Kolpin, D.W., Gillis, A.B., Alvarez, D.A., and Orlando, E.F., 2016, Exposure to the contraceptive progestin, gestodene, alters reproductive behavior, arrests egg deposition, and masculinizes development in the fathead minnow (Pimephales promelas): Environmental Science and Technology, v. 50, no. 11, p. 5991-5999, doi:10.1021/acs.est.6b00799. Copyright 2016 American Chemical Society, Photos taken by Edward F. Orlando, University of Maryland.


Image Dimensions: 2374 x 1418

Date Taken: