DDD (4,4'-), DDE (4,4'-), DDT (4,4'-), DIELDRIN, HEPTACHLOR EPOXIDE, HEXACHLOROBENZENE, MERCURY COMPOUNDS, POLYCHLORINATED BIPHENYLS |
TOX-REPRO - reproductive success |
percent of eggs lost or broken before hatching in contaminated colonies |
95% |
235 eggs |
Embryo |
2 yr |
Lake Huron |
Toxicity Factor Datasets |
DDD (4,4'-), DDE (4,4'-), DDT (4,4'-), DIELDRIN, HEPTACHLOR EPOXIDE, HEXACHLOROBENZENE, MERCURY COMPOUNDS, POLYCHLORINATED BIPHENYLS |
TOX-REPRO - physiology |
eggshell thickness compared with pre-1947 eggshells in contaminated colonies |
23.9% thinner |
18 eggs |
Embryo |
2 yr |
Lake Huron |
Toxicity Factor Datasets |
DDD (4,4'-), DDE (4,4'-), DDT (4,4'-), DIELDRIN, HEPTACHLOR EPOXIDE, HEXACHLOROBENZENE, MERCURY COMPOUNDS, POLYCHLORINATED BIPHENYLS |
TOX-REPRO - reproductive success |
mean hatching success in contaminated colonies |
2.4% |
331 eggs |
Embryo |
1 yr |
Lake Huron |
Toxicity Factor Datasets |
DDD (4,4'-), DDE (4,4'-), DDT (4,4'-), DIELDRIN, HEPTACHLOR EPOXIDE, HEXACHLOROBENZENE, MERCURY COMPOUNDS, POLYCHLORINATED BIPHENYLS |
TOX-REPRO - reproductive success |
fledging success (young/nest) in contaminated colonies |
0.06-0.11 (1972); 0.3 (1973) |
42 (1973)-66 (1972) nests |
Embryo |
2 yr |
Lake Huron |
Toxicity Factor Datasets |