UNDERWATER SOUNDS OF BLUE WHALES, <i>BALAENOPTERA MUSCULUS</i>, IN THE GULF OF CALIFORNIA, MEXICO

Thompson, P. O.; Findley, Lloyd T.; Vidal, Omar; Cummings, William C.

doi:10.1111/j.1748-7692.1996.tb00578.x

Cited by 83 publications

(78 citation statements)

References 4 publications

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“…The sounds of blue whales have fundamental frequencies in the 14 to 36Hz band, below what humans can hear, and these moans last several tens of seconds (Cummings and Thompson 1971;Edds 1982;McDonald et al 1995;Thompson et al 1996;Clark and Fristrup 1997;Stafford et al 1998). There are predictable differences in the calls of blue whales from different ocean basins (Clark and Fristrup 1997).…”

Section: Blue and Fin Whalesmentioning

confidence: 98%

“…The first part of a phrase is an amplitude-modulated tone with a strong fifth harmonic evident as a band of energy around 90 Hz; the second part is a harmonically rich frequency-modulated tone with a 1705Hz fundamental. These two sounds are referred to as the A and B types, respectively (Thompson et al 1996). This whale produced a sequence of pulses typical of blue whales in the eastern North Pacific, where the pulse sequence includes an amplitudemodulated 90Hz downsweep followed by three calls at about 17Hz, then a 90 Hz downsweep followed by one 17 Hz call.…”

Section: Blue and Fin Whalesmentioning

confidence: 99%

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Communication and Acoustic Behavior of Dolphins and Whales

Tyack¹,

Clark²

2000

Hearing by Whales and Dolphins

177

159

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Section: Blue and Fin Whalesmentioning

confidence: 98%

Section: Blue and Fin Whalesmentioning

confidence: 99%

Communication and Acoustic Behavior of Dolphins and Whales

Tyack¹,

Clark²

2000

Hearing by Whales and Dolphins

177

159

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“…The 12-h interval used here equates to an average straight line travel speed of 3.25km/h and an estimated average detection zone radius of 45 km. Kibblewhite et al 1967;McDonald et al in press Sirovic et al 2004;McDonald et al in press Cummings & Thompson 1971;McDonald et al 2001;Oleson 2005Thompson et al 1996Thode et al 2000Watkins et al 1987Croll et al 2002Thompson et al 1992McDonald et al 1995;McDonald & Fox 1999Kibblewhite et al 1967Winn et al 1981;Cerchio et al 2001Heiweg 1998Oleson et al 2003;Heimlich et al 2005 522 New …”

Section: Whale Call Identification and Occurrencementioning

confidence: 99%

An acoustic survey of baleen whales off Great Barrier Island, New Zealand

McDonald¹

2006

New Zealand Journal of Marine and Freshwater Research

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Acoustic recordings of baleen whale calls were analysed for the calendar year 1997 from a pair of fixed hydrophones located 5 km east of Great Barrier Island, New Zealand. The primary goal of the study was to examine blue whale seasonally and song type as part of a larger worldwide study. Calls were recorded from blue whales of two song types, fin whales, humpback whales, Bryde's whales, and of two unknown call types, each probably produced by Bryde's whales. The peak of calling density was May through September for the blue, fin, and humpback whales. The known Bryde's whale calls occurred year-round and the probable Bryde's whale calls occurred from May through December. Blue whale songs of a type so far known only from New Zealand waters were detected within 2 km of shore and occurred four times from June to December, whereas the Southern Ocean blue whale songs were detected only further offshore in mid-winter. Bryde's whale calls were the most abundant type and often occurred near the hydrophones. These data provide a baseline from which future recordings from the same hydrophones could be compared.

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“…ABABAB or ABCABC, where A, B and C represent different song units); (2) the inter-unit time interval; (3) total song phrase duration; and (4) song unit characteristics (frequency, duration, modulation) (e.g. Cummings & Thompson 1971, Thompson et al 1996, Stafford et al 1999b, McDonald et al 2006.…”

Section: Introductionmentioning

confidence: 99%