Killer whales occurrences in Venezuelan waters 1982-2008 ...

• Main Author: Bolanos, Jaime
• Format: Dataset
• Language: English
• Published: OBIS-SEAMAP 2021
• Subjects: Occurrence,Vessels,Sightings,Killer whales,Venezuela,Distribution,Caribbean Sea; Observation; Occurrence; Jiménez; Killer Whale; Orca; Orcinus orca; Killer whale
• Online Access: https://dx.doi.org/10.15468/2vvyu7; https://www.gbif.org/dataset/dce19651-54bd-48a6-8975-104430cd44ff

Original provider: Jaime Bolaños-Jiménez Dataset credits: Jaime Bolaños-Jiménez Abstract: Reported occurrences of the killer whale ( Orcinus orca ) off Venezuela are scarce. Eighteen records were opportunistically collected from April 1982 through January 2008. Bottom depth for the sightings was 10-1,500 m (mean = 444 + SD = 405; mode = 400, n = 18). Five 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 = 2.67 + SD = 1.57; mode = 1, n = 18). Adult males were present during 67% of reported sightings; females/juveniles were present in 61% (n = 12 and 11, respectively). Pictures of two male killer whales were sent to researchers in Brazil and the Bahamas for comparison purposes. Adult males were present in 92% of reported sightings. Females and juveniles were observed during 67% of reported sightings. 83% of the records were from December through May. ...