Killer whale (Orcinus orca) occurrence in Venezuelan waters, 1982-2008

Reported occurrences of the killer whale (Orcinus orca) off Venezuela are scarce. Twelve records were collected from February 2001 through January 2008. Sightings (n=12) were recorded off central and northeastern Venezuela. Bottom depth for the sightings was 10-1500 m (mean=519+SD=470; n=12). Four records had available associated still photographs or video. Noteworthy was a videotaped attack by two killer whales on a leatherback turtle (Dermochelys coriacea). Group size ranged from 1-5 individuals (mean=3+SD=1.76; n=12). Adult males were present in 92% of reported sightings. Females and juveniles were observed during 67% of reported sightings. Interestingly, all of the records were from December through May. There is currently not enough information to speculate on any seasonality to the occurrence of this species in Venezuelan waters.