| Abnormality Disease | Prevalence | Stressor | Locality |
|---|---|---|---|
| Decreased collagen | N/A | Toxaphene | N/A |
| Decreased larval growth | N/A | Cadmium | N/A |
| Embryonic mortality | N/A | Mercury | N/A |
| Mortality | N/A | Zinc | N/A |
| Reduced enzyme activity | N/A | Methylmercury | N/A |
| Reduced hatch | High | PCB | N/A |
| Skeletal malformations | ~34% | Lead | N/A |
| Vertebral abnormalities | N/A | Unknown causal agent | Shea Creek, WA |
| Weak chorion | N/A | Zinc | N/A |