00000nam 2200000zi 4500 9.882347 CaOODSP 20241127112818 m o d f cr ||||||||||| 191122t19941994oncabdo ob f000 0 eng d 0662208315 print CaOODSP eng rda CaOODSP nl----- En56-105/1994E-PDF En56-105/1994E Mystery on the Great Lakes. [Ottawa] : Environment Canada, Atmospheric Environment Service = Environnement Canada, Service de l'environnement atmosphérique, [1994] ©1994 1 online resource (16 pages) : illustrations, maps, graphs, photographs text txt rdacontent computer c rdamedia online resource cr rdacarrier Title from cover. "Canada's Green Plan." Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references (page 15). "The year was 1970. Reports were coming in of "strange" things happening on the Great Lakes. Confirmation came from a wildlife biologist visiting Hamilton Harbour on Lake Ontario that, indeed, something had gone terribly wrong. The nests of the common tern were filled with eggs that had failed to hatch. Many of these eggs contained dead embryos. Nearby, the biologist also spotted a young chick with a severe deformity. Its beak was crossed, dooming it to starve to death"--Page 1. gccst Lakes gccst Wildlife gccst Scientists Canada. Atmospheric Environment Service. PDF 43.71 MB https://publications.gc.ca/collections/collection_2019/eccc/En56-105-1994-eng.pdf