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

Technical Report · Thu Jun 01 04:00:00 EDT 1995

OSTI ID:426706

Monson, D H; Ballachey, B

Age distribution of sea otters (Enhydra lutris) found dead on beaches in western Prince William Sound Alaska, from 1976 to 1984, were compared to those of sea otters found dead from 1989 to 1993, following the Exxon Valdez oil spill. The age distribution of sea otters recovered in western Prince William Sound prior to the spill was bimodal and composed of primarily young and old animals. The high proportion of prime-age otters recovered immediately following the spill indicates significant losses occurred within a segment of the population which normally experiences very low mortality. The high proportion of prime-age otters recovered in 1990-1991 may be evidence of a prolonged, spill-related effect on the western Prince William Sound sea otter population.

• Research Organization: Alaska Fish and Wildlife Research Center, Anchorage, AK (United States)
• OSTI ID: 426706
• Report Number(s): PB--96-194675/XAB
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
54 ENVIRONMENTAL SCIENCES
56 BIOLOGY AND MEDICINE
APPLIED STUDIES
AGE GROUPS
COMPILED DATA
ENVIRONMENTAL EFFECTS
GULF OF ALASKA
MORTALITY
OIL SPILLS
OTTERS
STATISTICAL DATA