Evidence of fin whale (Balaenoptera physalus velifera) recovery in the Canadian Pacific DOI Creative Commons

Lynn Rannankari,

Rianna E. Burnham,

David A. Duffus

et al.

Frontiers in Conservation Science, Journal Year: 2024, Volume and Issue: 5

Published: Aug. 26, 2024

Pacific fin whales ( Balaenoptera physalus velifera ), once the most abundant cetacean species in British Columbia (BC), were also one of heavily targeted by commercial whaling. Much what we know about their phenology and ecology is from catch records, but current status has not yet been summarized Canadian waters. Here, collated evidence dedicated surveys, opportunistic sightings, passive acoustic records that had reported before reviewed them context past data. This was to add new findings known, establish if population showing signs recovery. particularly relevant considering discussions downlisting Canada endangered threatened . We then asked this rebounding consistent with known pre-whaling presence movement patterns, or changes whale distribution reflected altered oceanic regimes, prey availability, increased anthropogenic pressures. The suggested populations northeast Ocean are repopulating areas along BC coast recognized as part historic range. However, they recovering a different ocean than removed from, which makes increasingly vulnerable threats. sightings data that, at least for west Vancouver Island, repopulation occurred over relatively short period, still absent regular surveys recent early 2000’s. recordings transitory, may be using locales feeding breeding activities.

Language: Английский

Assessing the potential acoustic impact of floating offshore wind farms in the Central Mediterranean Sea DOI
Marzia Baldachini, Federica Pace, Giuseppa Buscaino

et al.

Marine Pollution Bulletin, Journal Year: 2025, Volume and Issue: 212, P. 117615 - 117615

Published: Jan. 28, 2025

Language: Английский

Citations

0
Fin whale song recordings by onshore seismometers open new horizons for cetacean coastal monitoring DOI Creative Commons
Martin Möllhoff, Christopher J. Bean

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: April 18, 2025

Fin whales, the second largest animal on Earth, produce one of most intense vocalisations in kingdom. Monitoring these songs using ocean-deployed hydrophones plays an important role study fin whale distribution and social behaviour, though obtaining real-time data remains challenging. In this feasibility we investigate if vocalising near-coastal whales can be widely detected located with onshore seismometers. Inspecting from pre-existing seismic installations establish that song seismometers up to 5.5 km inland, across multiple marine environments, globally. Individual creatures tracked through analysis wave properties. Furthermore, show citizen science seismometers, such as affordable deployed 'Raspberry Shake' devices, reliably detect song. These instruments, often placed coastal areas, provide data, offering a cost-effective accessible method for monitoring activity. The revelation human living spaces are ensonified by offers potential enhance public engagement oceans presents new opportunities global monitoring. vulnerable noise pollution, shipping strikes entanglement fishing gear. use terrestrial could improve early warning systems contribute richer datasets near vocalisations. This demonstrates that, globally, holds significant untapped

Language: Английский

Citations

0
Evidence of fin whale (Balaenoptera physalus velifera) recovery in the Canadian Pacific DOI Creative Commons

Lynn Rannankari,

Rianna E. Burnham,

David A. Duffus

et al.

Frontiers in Conservation Science, Journal Year: 2024, Volume and Issue: 5

Published: Aug. 26, 2024

Pacific fin whales ( Balaenoptera physalus velifera ), once the most abundant cetacean species in British Columbia (BC), were also one of heavily targeted by commercial whaling. Much what we know about their phenology and ecology is from catch records, but current status has not yet been summarized Canadian waters. Here, collated evidence dedicated surveys, opportunistic sightings, passive acoustic records that had reported before reviewed them context past data. This was to add new findings known, establish if population showing signs recovery. particularly relevant considering discussions downlisting Canada endangered threatened . We then asked this rebounding consistent with known pre-whaling presence movement patterns, or changes whale distribution reflected altered oceanic regimes, prey availability, increased anthropogenic pressures. The suggested populations northeast Ocean are repopulating areas along BC coast recognized as part historic range. However, they recovering a different ocean than removed from, which makes increasingly vulnerable threats. sightings data that, at least for west Vancouver Island, repopulation occurred over relatively short period, still absent regular surveys recent early 2000’s. recordings transitory, may be using locales feeding breeding activities.

Language: Английский

Citations

0