Assessment of injuries and recovery monitoring of Prince William Sound killer whales using photo-identification techniques. Restoration project 93042/94092. Exxon Valdez oil spill restoration project final report

Technical Report · Fri Apr 01 00:00:00 EST 1994

OSTI ID:426705

Dahlheim, M E

Photo-identification studies of individual killer whales inhabitating Prince William Sound were collected from 1989-91 and from July to September 1993 to determine the impact of the spill on whale abundance and distribution (1989-1991) and monitor recovery (1993). Concurrent photo-identification studies were also conducted in Southeast Alaska to determine if PWS killer whales were displaced to other areas between 1989 and 1991. Despite increased effort, the number of encounters with PWS killer whales appears to be decreasing. The authors assume, that the whales are dead from natural causes, a result of interactions with fisheries, from the spill, or a combination of these causes.

• Research Organization: National Marine Fisheries Service, Seattle, WA (United States). Alaska Fisheries Science Center
• OSTI ID: 426705
• Report Number(s): PB-96-194667/XAB; TRN: 62392947
• Resource Relation: Other Information: PBD: Apr 1994
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
02 PETROLEUM
56 BIOLOGY AND MEDICINE
APPLIED STUDIES
OIL SPILLS
ENVIRONMENTAL EFFECTS
GULF OF ALASKA
COMPILED DATA
CETACEANS
SPATIAL DISTRIBUTION
INJURIES
BIOLOGICAL RECOVERY