Common Dolphin

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Related to Short-beaked common dolphin: Delphinus capensis, Arabian Common Dolphin, Long-beaked Common Dolphin

Common Dolphin

 

(Delphinus delphis), a mammal of the Delphinidae family belonging to the Odontoceti suborder. Body length, up to 2.5 m. The upper part of the body and head are blackish, and the belly and sides are white (hence the name in Russian of belobochka, white-side). The dorsal and pectoral fins are sickle-shaped. The nose is narrow, long, and beak-shaped. The teeth are small and numerous (up to 240). The common dolphin is widely distributed in seas of the equatorial and temperate zones; it lives in the open sea. It feeds on anchovies, sprats, herring, capelin, and other small fish living in the upper layers of the seas. It congregates in schools which number up to several thousand individuals. In the Black Sea the common dolphin mates in July and August, and the gestation period lasts from ten to 11 months. Usually the female bears one young, whose body length is about 90 cm.

The common dolphin is a commercial fish; its fat and skin are used. The numbers of common dolphin have fallen sharply; only Turkey hunts it commercially. The USSR and Bulgaria have forbidden the commercial catching of dolphins for a ten-year period beginning in 1966.

REFERENCES

Kleinenberg, S. E. Mlekopitaiushchie Chernogo i Azovskogo morei. Moscow, 1956.
Tomilin, A. G. Kitoobraznye. Vol. 9 of the series Zveri SSSR i prilezhashchikh stran. Moscow, 1957.
Tomilin, A. G. Kitoobraznye fauny morei SSSR. Moscow, 1962.
References in periodicals archive ?
The similarities in the model results for both common dolphins and the short-beaked common dolphin indicate that the data for the combined category likely are dominated by sightings of short-beaked common dolphins.
Experimental results demonstrated that entanglement rates of short-beaked common dolphins, Delphinus delphis, and California sea lions, Zalophus californianus, were significantly reduced in pingered nets (Barlow and Cameron, 2003).
Fifth, we did not correct for reactions to vessel approach by small cetaceans--an issue that is primarily a concern with the Dali's porpoise and vessel-attracted dolphin species, like the short-beaked common dolphin.
Of the cetaceans inhabiting the study area, bottlenose dolphins were the most often observed, followed by long-beaked and short-beaked common dolphins, as previously recorded for the Southern California Bight (Bonnell and Dailey, 1993; Forney and Barlow, 1998; Carretta et al.
Group sizes of pantropical spotted (Stenella attenuata), spinner (Stenella longirostris), and short-beaked common dolphins in the eastern Pacific Ocean have been observed to mirror the diurnal group-size fluctuations of yellowfin tuna (Thunnus albacares), one of their common prey (Scott and Cattanach, 1998).
Short-beaked common dolphins dominated the abundance estimates for all regions except Oregon-Washington (Table 5), both because of the large number of sightings and the large group sizes for this species.
Habitat partitioning by bottlenose dolphins (Tursiops truncatus), short-beaked common dolphins (Delphinus delphis), and long-beaked common dolphins (D.
Bottlenose dolphins are the most commonly known, in addition to the short-beaked common dolphins and striped dolphins.
The rise in strandings in the past five years is mostly accounted for by the winter strandings of short-beaked common dolphins and harbour porpoises in the southwest of England.
The last five years in particular, have shown a dramatic increase, mainly due to winter strandings of short-beaked common dolphins and harbour porpoises in southwest England.
Twenty-six short-beaked common dolphins were found beached in Falmouth Bay on June 9, 2008.