Year-Round Acoustic Presence of Beaked Whales (Ziphiidae) Far Offshore off Australia’s Northwest Shelf
Beaked whales are a cryptic pelagic species, rarely sighted at sea. In a ~2.5-year passive acoustic monitoring program on Australia’s Northwest Shelf, a variety of marine mammal sounds were detected, including beaked whale (Ziphiidae) clicks. An automatic detection routine for beaked whale clicks wa...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-05-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/13/5/927 |
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| author | Evgenii Sidenko Iain Parnum Alexander Gavrilov Robert McCauley Christine Erbe |
| author_facet | Evgenii Sidenko Iain Parnum Alexander Gavrilov Robert McCauley Christine Erbe |
| author_sort | Evgenii Sidenko |
| collection | DOAJ |
| description | Beaked whales are a cryptic pelagic species, rarely sighted at sea. In a ~2.5-year passive acoustic monitoring program on Australia’s Northwest Shelf, a variety of marine mammal sounds were detected, including beaked whale (Ziphiidae) clicks. An automatic detection routine for beaked whale clicks was developed, tested, and run on these recordings. The detection workflow included: (1) the extraction of impulsive signals from passive acoustic recordings based on an auto-regression model, (2) the calculation of a set of features of extracted signals, and (3) binary signal classification based on these features. Detector performance (Precision, Recall, and F1-score) was assessed using a manually annotated dataset of extracted clicks. This automated routine allows for quick analysis of animal (acoustic) presence and distribution spatially and temporally. In our study, beaked whales were present all year round at six deep-water (>1000 m) sites, but no clicks were detected at the shallow-water (~70 m) site. No seasonal or diurnal patterns of beaked whale clicks were identified. |
| format | Article |
| id | doaj-art-86519a63694e48d9bc04c43fa8e1903c |
| institution | DOAJ |
| issn | 2077-1312 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj-art-86519a63694e48d9bc04c43fa8e1903c2025-08-20T03:14:31ZengMDPI AGJournal of Marine Science and Engineering2077-13122025-05-0113592710.3390/jmse13050927Year-Round Acoustic Presence of Beaked Whales (Ziphiidae) Far Offshore off Australia’s Northwest ShelfEvgenii Sidenko0Iain Parnum1Alexander Gavrilov2Robert McCauley3Christine Erbe4Centre for Marine Science and Technology, Curtin University, Perth, WA 6102, AustraliaCentre for Marine Science and Technology, Curtin University, Perth, WA 6102, AustraliaCentre for Marine Science and Technology, Curtin University, Perth, WA 6102, AustraliaCentre for Marine Science and Technology, Curtin University, Perth, WA 6102, AustraliaCentre for Marine Science and Technology, Curtin University, Perth, WA 6102, AustraliaBeaked whales are a cryptic pelagic species, rarely sighted at sea. In a ~2.5-year passive acoustic monitoring program on Australia’s Northwest Shelf, a variety of marine mammal sounds were detected, including beaked whale (Ziphiidae) clicks. An automatic detection routine for beaked whale clicks was developed, tested, and run on these recordings. The detection workflow included: (1) the extraction of impulsive signals from passive acoustic recordings based on an auto-regression model, (2) the calculation of a set of features of extracted signals, and (3) binary signal classification based on these features. Detector performance (Precision, Recall, and F1-score) was assessed using a manually annotated dataset of extracted clicks. This automated routine allows for quick analysis of animal (acoustic) presence and distribution spatially and temporally. In our study, beaked whales were present all year round at six deep-water (>1000 m) sites, but no clicks were detected at the shallow-water (~70 m) site. No seasonal or diurnal patterns of beaked whale clicks were identified.https://www.mdpi.com/2077-1312/13/5/927beaked whaleZiphiidaeclick detectorpassive acoustic monitoring |
| spellingShingle | Evgenii Sidenko Iain Parnum Alexander Gavrilov Robert McCauley Christine Erbe Year-Round Acoustic Presence of Beaked Whales (Ziphiidae) Far Offshore off Australia’s Northwest Shelf Journal of Marine Science and Engineering beaked whale Ziphiidae click detector passive acoustic monitoring |
| title | Year-Round Acoustic Presence of Beaked Whales (Ziphiidae) Far Offshore off Australia’s Northwest Shelf |
| title_full | Year-Round Acoustic Presence of Beaked Whales (Ziphiidae) Far Offshore off Australia’s Northwest Shelf |
| title_fullStr | Year-Round Acoustic Presence of Beaked Whales (Ziphiidae) Far Offshore off Australia’s Northwest Shelf |
| title_full_unstemmed | Year-Round Acoustic Presence of Beaked Whales (Ziphiidae) Far Offshore off Australia’s Northwest Shelf |
| title_short | Year-Round Acoustic Presence of Beaked Whales (Ziphiidae) Far Offshore off Australia’s Northwest Shelf |
| title_sort | year round acoustic presence of beaked whales ziphiidae far offshore off australia s northwest shelf |
| topic | beaked whale Ziphiidae click detector passive acoustic monitoring |
| url | https://www.mdpi.com/2077-1312/13/5/927 |
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