Common dolphin

Common Dolphin

Delphinus capensis

CD 3

Common dolphins (Delphinus delphis) adult and juvenile Sagres

Common Dolphin of genus Delphinus

Common Dolphin (Delphinus delphis) is a widely distributed species of dolphin found in warm and tropical seas. Known for its distinctive crisscross or hourglass pattern on its side, the common dolphin is one of the most abundant and familiar dolphins in the world. This article provides an overview of the common dolphin, including its physical characteristics, behavior, diet, and conservation status.

Description

The common dolphin has a slender body, with a long beak and a dorsal fin that is slightly curved back. Adults can reach lengths of up to 2.5 meters (8.2 ft) and weigh between 100-140 kilograms (220-310 lb). The species is notable for its striking color pattern; the back is dark grey, and the sides exhibit a complex pattern of light grey, yellow, and white, with a distinctive hourglass or crisscross pattern.

Behavior

Common dolphins are highly social animals, often found in large groups called pods, which can number in the hundreds or even thousands. These pods are dynamic, with dolphins frequently joining or leaving. Common dolphins are known for their acrobatic displays, including leaping from the water, riding waves, and bow-riding in front of ships.

Diet

The diet of the common dolphin consists mainly of small schooling fish and squid. They are skilled hunters, working together in pods to herd fish into dense balls, which they then take turns feeding on.

Reproduction

Females reach sexual maturity at around 5-7 years of age, while males mature slightly later, at around 10-12 years. The gestation period is about 10-11 months, after which a single calf is born. Calves are nursed for up to 18 months, although they may begin to eat fish as early as 6 months old.

Conservation Status

The International Union for Conservation of Nature (IUCN) currently lists the common dolphin as Least Concern (LC). However, they face threats from various human activities, including accidental capture in fishing gear (bycatch), pollution, and habitat degradation. Efforts to mitigate these threats include the implementation of safer fishing practices and the establishment of marine protected areas.

See Also

• Dolphin
• Marine biology
• Conservation status

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