This collection of articles is a sampling of papers vironmental Toxicants and their Effects on the from the second biennial symposium for the ‘‘Etho Ethology and Behavioral Ecology of Fishes’’, or logy and Behavioral Ecology of Fishes’’. This con ganized by Mary Henry and Jack Ward featured ference was also the first North American Meeting invited papers by: John B. Sprague; Mary G. Henry & Gary J. Atchison; as well as contributed papers of the ‘‘International Association of Fish Etholog ists’’ and was held October 19-22, 1979 -on the Il by Robert A. Drummond, Daniel Abel & Chris linois State University campus in Normal. Illinois, topher C. Koenig; C. G. Prewitt & C. B. Stalnaker; U. S. A. , the site for the first conference in 1977 Kenneth S. Lubinski; J. Doerzbacher & C. F. Bryan; and the proposed site for the third biennial con Michael A. Barry; Allen E. Bingham & Robert G. ference scheduled for May 1981. The organiza White. tional committee for these conferences is Jack The symposium ‘‘Reproductive Tactics’’ was or Ward, Chairman, Illinois State University (Biology, ganized by Luther Brown, Jeff Baylis and David Normal, IL 61761); Jeffrey Baylis, University of Noakes, and featured invited papers by: Jerry F. Wisconsin (Zoology, Madison, WI 53706); Luther Downhower, Luther Brown, R. Pederson & G. Brown, George Mason University (Biology, Fair Staples; Roger Thibault; George Barlow; Richard fax, VA 22030); Mike Fitzsimmons, Louisiana State Borowsky & John Diffley; Jack Ward & J. I.