Technical report: Marine mammals study number 6. Mortality of sea otter weanlings in eastern and western Prince William Sound, Alaska during the winter of 1990-91. Marine mammal study 6-18. Exxon Valdez oil spill state/federal natural resource damage assessment final report
Sixty-four dependent sea otters Eastern Prince William Sound (EPWS): n = 24; Western Prince William Sound (WPWS), the oil spill area: n = 401 were captured, examined, instrumented with radio-transmitters, and monitored in Prince William Sound between September 1990 and July 15, 1991. While the absolute timing of instrumentation was similar for pups in EPWS and the oil spill area, pups in the oil spill area weighed significantly less at the time of capture than their counterparts in EPWS. Most pups in EPWS became independent of their mothers in October, whereas mother-pup separation typically occurred in November and December in the oil spill area. Most mortality in EPWS occurred during November and December of 1990, whereas most mortality in the oil spill area occurred during January 1991. Survival rates of weanlings over their first winter (analyses consider data until May 1, 1991) were significantly higher in EPWS (the control) than in the oil spill region.
- Research Organization:
- Alaska Dept. of Fish and Game, Cordova, AK (Udnited States)
- OSTI ID:
- 371075
- Report Number(s):
- PB-96-194998/XAB; TRN: 62392978
- Resource Relation:
- Other Information: PBD: May 1995
- Country of Publication:
- United States
- Language:
- English
Similar Records
Age distributions of sea otters found dead in Prince William Sound, Alaska, following the Exxon Valdez oil spill. Marine mammal study 6-15. Exxon Valdez oil spill state/federal natural resource damage assessment final report
Biomarkers of damage to sea otters in Prince William Sound, Alaska, following potential exposure to oil spilled from the Exxon Valdez. Marine mammal study 6-1. Exxon Valdez oil spill state/federal natural resource damage assessment final report