Dialects and Usage Patterns of Weddell Seal 'Leptonychotes weddelli' Underwater Vocalisations

• Other Authors: AADC (owner), AADC, DATA OFFICER (distributor), AADC, DATA OFFICER (custodian), AU/AADC > Australian Antarctic Data Centre, Australia (hasAssociationWith), Australian Antarctic Data Centre (publisher), Australian Antarctic Division (sponsor), TERHUNE, JOHN MOORE (collaborator), TERHUNE, JOHN MOORE (hasPrincipalInvestigator), TERHUNE, JOHN MOORE (author), Terhune, J.M. (originator)
• Format: Dataset
• Language: unknown
• Published: Australian Ocean Data Network
• Subjects: biota; oceans; EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES; ANIMALS/VERTEBRATES > MAMMALS; ANTARCTICA; CALL DURATION; CALL NUMBER; CALL SHAPE; CALL TYPE; CASSETTE; DATE; DURATION BETWEEN SEQUENTIAL CALLS; ELEMENT DURATION; ELEMENT NUMBER; FREQUENCY; INTERVAL DURATION; LARESMANN HILLS; LEPTONYCHOTES WEDDELLII; LOCATION; NUMBER OF ELEMENTS; OVERLAP; SOUTHERN OCEAN; UNDERWATER VOCALISATIONS; VESTFOLD HILLS; WAVEFORM; YEAR; AMD/AU; CEOS; AMD; CONTINENT > GEOGRAPHIC REGION > POLAR; Antarc*; Antarctica; Leptonychotes weddelli; McMurdo Sound; Southern Ocean; Weddell Seal; Weddell Seals
• Online Access: https://researchdata.edu.au/dialects-usage-patterns-underwater-vocalisations/2820648

Progress Code: completed Statement: The analogue and digital format underwater recordings were made on an opportunistic basis within fjords and along the coastline near Davis and at the Larsemann Hills. All recordings were made near groups of breeding seals (20 mother-pup pairs). The numbers of males and females in the water, under the ice, were unknown. Underwater recordings of vocalisations of Weddell seals were obtained at 8 locations within the Vestfold Hills (7) and Larsemann Hills (1). The recordings were made near groups of seals on the ice during the mid to late part of the breeding season. Recordings were obtained using a variety of hydrophones and both Sony Digital Audio Tape (130 during 1992 season) and standard analogue cassette (60 during 1991 season) formats. Over 11,000 vocalizations were analyzed. The calls were classified into 12 major call types (Pahl et al. 1997 Australian Journal of Zoology 45:171-187). The underwater repertoire is different than that of the seals at McMurdo Sound or the Palmer Penninsula (Thomas et al. 1988 Hydrobiologica 165:279-284). The Weddell seals at the Vestfold Hills do not exhibit the between-fjord vocal differences reported by Morrice et al. (1994 Polar Biology 14:441-446). The relative usage of each call type did not vary between the earlier and later recordings (Pahl et al. 1996 Australian Journal of Zoology 44:75-79). The recordings are currently being used to support other studies on Weddell seal vocalizations. Legend for ASAC_556.csv - csv text format. The following legend describes the 39 variables in this file. The codes for some of the variables are presented in the 1997 publication: Pahl, B.C., Terhune, J.M., and Burton, H.R. 1997. Repertoire and geographic variation in underwater vocalisations of Weddell seals (Leptonychotes weddellii, Pinnipedia: Phocidae) at the Vestfold Hills, Antarctica. Australian Journal of Zoology 45: 171-187. The fields in this dataset are: VariableSubject or code 1LOCATION; recording location; see AJZ article, Figure 1 2DATE; ...