Passive acoustic monitoring of killer whales in the northern Gulf of Alaska ...

Original provider: Hannah Myers Dataset credits: Hannah Myers, University of Alaska Fairbanks Abstract: Killer whales (Orcinus orca) are top predators throughout the world’s oceans. In the North Pacific, the species is divided into three ecotypes—resident (fish-eating), transient (mammal-eating), an...

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Bibliographic Details
Main Author: Myers, Hannah
Format: Dataset
Language:English
Published: OBIS-SEAMAP 2021
Subjects:
Occurrence,Marine Animal Survey,Marine Biology,Marine mammals,Acoustic precense/absence,Ocean-based Platforms
Observation
Occurrence
Fairbanks
Gulf of Alaska
Hannah
Montague
Myers
Pacific
Orca
Orcinus orca
Alaska
Online Access:https://dx.doi.org/10.15468/9e4dyf
https://www.gbif.org/dataset/dc274911-6d14-4aa7-9c27-d17833d51a5d
Description
Summary:Original provider: Hannah Myers Dataset credits: Hannah Myers, University of Alaska Fairbanks Abstract: Killer whales (Orcinus orca) are top predators throughout the world’s oceans. In the North Pacific, the species is divided into three ecotypes—resident (fish-eating), transient (mammal-eating), and offshore (largely shark-eating)—that are genetically and acoustically distinct and have unique roles in the marine ecosystem. We deployed hydrophones in the northern Gulf of Alaska to examine the year-round distribution of killer whales from 2016 to 2020 using passive acoustic monitoring. Highest year-round acoustic presence occurred in Montague Strait, with strong seasonal patterns in Hinchinbrook Entrance and Resurrection Bay. Passive acoustic monitoring revealed that both resident and transient killer whales used these areas much more extensively than previously known and provided novel insights into high use locations and times for each population. These results may be driven by seasonal foraging ...

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