A new song recorded from blue whales in the Corcovado Gulf, Southern Chile, and an acoustic link to the Eastern Tropical Pacific

Buchan, Susannah J.; Hucke‐Gaete, Rodrigo; Rendell, Luke; Stafford, Kathleen M.

doi:10.3354/esr00566

Cited by 37 publications

(81 citation statements)

References 29 publications

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“…brevicauda) and the Chilean blue whale (unnamed). Based on acoustic analyses of blue whale sounds, size differences and genetics, there could be additional distinct populations or subspecies [73,74]. Australian waters are home to at least two of these subspecies: the Antarctic blue whale and the pygmy blue whale.…”

Section: Balaenoptera Musculus-blue Whalementioning

confidence: 99%

“…Southern hemisphere blue whales have been acoustically recorded in the southeast Pacific, off Chile [73,81], in the southwest Pacific, off New Zealand [82,83], in the Indian Ocean [84,85], off Antarctica [76,86,87] and Australia [88][89][90]. They emit patterned and repetitive sequences of vocalisations, called "song", lasting up to hours at a time.…”

Section: Balaenoptera Musculus-blue Whalementioning

confidence: 99%

“…Three-and four-unit phrases are common in blue whale song [73,[81][82][83][84]. Unit precursors in the form of 0.7-1-s pulses with peak energy between 347 and 430 Hz have been recorded in Chilean blue whale song [73,81] and are similar to precursors recorded from blue whales in the North Pacific [92]. In addition to song, blue whales emit non-patterned sounds with FM sweeps being very common (e.g.…”

Section: Balaenoptera Musculus-blue Whalementioning

confidence: 99%

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Review of Underwater and In-Air Sounds Emitted by Australian and Antarctic Marine Mammals

et al. 2017

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The study of marine soundscapes is a growing field of research. Recording hardware is becoming more accessible; there are a number of off-the-shelf autonomous recorders that can be deployed for months at a time; software analysis tools exist as shareware; raw or preprocessed recordings are freely and publicly available. However, what is missing are catalogues of commonly recorded sounds. Sounds related to geophysical events (e.g. earthquakes) and weather (e.g. wind and precipitation), to human activities (e.g. ships) and to marine animals (e.g. crustaceans, fish and marine mammals) commonly occur. Marine mammals are distributed throughout Australia's oceans and significantly contribute to the underwater soundscape. However, due to a lack of concurrent visual and passive acoustic observations, it is often not known which species produces which sounds. To aid in the analysis of Australian and Antarctic marine soundscape recordings, a literature review of the sounds made by marine mammals was undertaken. Frequency, duration and source level measurements are summarised and tabulated. In addition to the literature review, new marine mammal data are presented and include recordings from Australia of Omura's whales (Balaenoptera omurai), dwarf sperm whales (Kogia sima), common dolphins (Delphinus delphis), short-finned pilot whales (Globicephala macrorhynchus), long-finned pilot whales (G. melas), Fraser's dolphins (Lagenodelphis hosei), false killer whales (Pseudorca crassidens), striped dolphins (Stenella coeruleoalba) and spinner dolphins (S. longirostris), as well as the whistles and burst-pulse sounds of Australian pygmy killer whales (Feresa attenuata). To date, this is the most comprehensive acoustic summary for marine mammal species in Australian waters.

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Section: Balaenoptera Musculus-blue Whalementioning

confidence: 99%

Section: Balaenoptera Musculus-blue Whalementioning

confidence: 99%

Section: Balaenoptera Musculus-blue Whalementioning

confidence: 99%

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Review of Underwater and In-Air Sounds Emitted by Australian and Antarctic Marine Mammals

et al. 2017

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“…By using a high spectral resolution when viewing spectrograms of whale calls, the 26 Hz tone of Unit A is sufficiently distinguishable from vocalisations produced by blue whales around New Zealand (McDonald 2006, pygmy blue whales in the Indian Ocean (Gavrilov et al 2011, Gavrilov & McCauley 2013, Samaran et al 2013, and those of Chilean blue whales in the southeast Pacific (Buchan et al 2010(Buchan et al , 2014; thus, the risk of misclassification would be minimal.…”

Section: Implications For Future Studies Of Antarctic Blue and Other mentioning

confidence: 99%

Validating the reliability of passive acoustic localisation: a novel method for encountering rare and remote Antarctic blue whales

Miller¹,

Barlow²,

Calderan³

et al. 2015

Endang. Species. Res.

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“…The species has been slow to recover from almost total decimation and hence a valuable discovery was made in 1993, when a small blue whale population of 232 individuals was found in the Gulf of Corcovado in the Chiloense Ecoregion of Southern Chile (Hucke-Gaete et al 2004). Genetic, acoustic and morphometric studies indicate that these blue whales are part of a wider Southeast Pacific population that is distinct from both the Antarctic (B. musculus intermedia) and "pygmy" (B. musculus brevicauda) blue whale subspecies (Branch et al 2007, Buchan et al 2014, Torres-Florez et al 2014. Further investigations are required to establish the degree of isolation of the population and the health and viability of the individuals within it.…”

Section: Introductionmentioning

confidence: 99%

A preliminary investigation into the ecology and behavior of blue whales (Balaenoptera musculus) in the Gulf of Corcovado, Chile

Bocconcelli¹,

Hickmott²,

Briones³

et al. 2014

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A joint effort between WHOI and the Melimoyu Ecosystem Research Institute (MERI) sought to gain a better understanding of a population of blue whales (Balaenoptera musculus) in the Gulf of Corcovado, Chile. A cruise in March 2014 resulted in the deployment of 5 DTAGs, which are miniature sound and orientation recording tags that are attached via suction cups. A total of five tag deployments on four individual whales were achieved, totaling 21 hr 11 min. Dives were predominantly between 10 and 50 m in depth, with a maximum of 139 m. Sloughed skin found on the suction cups of recovered tags and fecal samples were preserved to be used for genetic, dietary and pollutant analyses. Acoustic data on the tags revealed numerous calls from distant blue whales, and an apparent call exchange was recorded between a tagged juvenile whale and a distant animal. Photo-identification images and acoustic recordings of all marine mammal species encountered were obtained whenever possible; these included humpback whales (Megaptera novaeangliae), Peale's dolphins (Lagenorhynchus australis), Chilean dolphins (Cephalorhynchus eutropia), and bottlenose dolphins (Tursiops truncatus). Continuation of this collaboration has great potential to provide information to policy makers regarding how to protect the unique habitats in this region.

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A new song recorded from blue whales in the Corcovado Gulf, Southern Chile, and an acoustic link to the Eastern Tropical Pacific

Cited by 37 publications

References 29 publications

Review of Underwater and In-Air Sounds Emitted by Australian and Antarctic Marine Mammals

Review of Underwater and In-Air Sounds Emitted by Australian and Antarctic Marine Mammals

Validating the reliability of passive acoustic localisation: a novel method for encountering rare and remote Antarctic blue whales

A preliminary investigation into the ecology and behavior of blue whales (Balaenoptera musculus) in the Gulf of Corcovado, Chile

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