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La Plata Dolphin


Scientific Name:
Pontoporia blainvillei
Length:
male: 1.6 m (5.2 ft); female: 1.8 m (5.9 ft)
Weight:
50 kg (110 lbs)
Status:
data deficient
Prey:
Fish (sciaenids, engraulids, gadlids, carangids), squid and shrimp

Physical characteristics

They have the largest beak of any cetacean. The blowhole is crescent shaped and the dorsal fin has a long base and a rounded tip. They have large flippers.

Behavioral characterization

They move very smoothly and slowly.

Distribution

Coastal Atlantic waters of South America and the tropical waters of Capricorn to Argentina.

Population size

Unknown

Predators

Sharks

Migration/Dispersal patterns

Frequent sightings indicate that they do not migrate.

Social system/Group size

Usually seen in groups of 2 - 15.

Major threats

Pollution and habitat degradation.

Research efforts

N/A

Fun fact

They belong to the group of the river dolphins that live in oceans and saltwater estuaries.