Passive acoustic monitoring of killer whales in the Gulf of Alaska 2019-2021

Hannah Myers

doi:10.15468/5a6ng9

Passive acoustic monitoring of killer whales in the Gulf of Alaska 2019-2021

Citation

Myers H, OBIS-SEAMAP (2023). Passive acoustic monitoring of killer whales in the Gulf of Alaska 2019-2021. OBIS-SEAMAP. Occurrence dataset https://doi.org/10.15468/5a6ng9 accessed via GBIF.org on 2024-12-15.

Description

Original provider: Hannah Myers Dataset credits: Hannah Myers, University of Alaska Fairbanks Abstract: Defining a marine mammal population’s calling rate can enable acoustic density estimation. We used killer whale dialects, long-term photo-identification, and year-round acoustic data across multiple locations to establish calling rates for three killer whale populations. This dataset includes acoustic detections of the AD8 and AD16 pods of southern Alaska resident (fish-eating) killer whales, as well as detections of the Gulf of Alaska transient (mammal-eating) and AT1 transient (mammal-eating) populations. These populations and pods were recognized using published call catalogues as well as field recordings during which the animals present were photographically identified. The number of discrete calls in each four- or five-min recording was counted. For resident killer whales, the number of animals present is the number of animals photographically documented that year in the pod; for transients, it is the mean number of animals documented over long-term vessel survey efforts. Purpose: Establish calling rates for passive acoustic density estimation of three populations of killer whales. Supplemental information: This dataset includes some overlap with "Passive acoustic monitoring of killer whales in the northern Gulf of Alaska" which collects data from 2016 - 2020 while this dataset collects data from June 2019 - Aug 2021. For transient populations, the mean number (non-integer) of animals in vessel survey encounters was calculated and stored in number_of_animals. obs_count for these records is blank, indicating presence-only.

Purpose

Establish calling rates for passive acoustic density estimation of three populations of killer whales.

Sampling Description

Study Extent

NA

Sampling

NA

Method steps

NA

Additional info

marine, harvested by iOBIS

Taxonomic Coverages

Scientific names are based on the Integrated Taxonomic Information System (ITIS).

Orcinus orca
common name: Killer whale rank: species

Geographic Coverages

Alaska,Gulf of Alaska

Bibliographic Citations

Contacts

Hannah Myers
originator
position: Primary contact
University of Alaska Fairbanks
email: hmyers8@alaska.edu
homepage: https://uaf.edu/cfos/people/student/detail/hannah-myers.php

OBIS-SEAMAP
metadata author
Marine Geospatial Ecology Lab, Duke University
A328 LSRC building
Durham
27708
NC
US
email: seamap-contact@duke.edu
homepage: https://seamap.env.duke.edu

OBIS-SEAMAP
distributor
Marine Geospatial Ecology Lab, Duke University
A328 LSRC building
Durham
27708
NC
US
email: seamap-contact@duke.edu
homepage: https://seamap.env.duke.edu

Hannah Myers
owner
position: Primary contact
University of Alaska Fairbanks
email: hmyers8@alaska.edu
homepage: https://uaf.edu/cfos/people/student/detail/hannah-myers.php

Hannah Myers
administrative point of contact
position: Primary contact
University of Alaska Fairbanks
email: hmyers8@alaska.edu
homepage: https://uaf.edu/cfos/people/student/detail/hannah-myers.php