Taxonomy
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Mammal
- Order
- Artiodactyla
- Family
- Pontoporiidae
- Genus
- Pontoporia
Habitat
La Plata dolphins inhabit coastal and estuarine waters of the western South Atlantic, primarily in the Río de la Plata estuary and along the coasts of Brazil, Uruguay, and Argentina. They prefer shallow waters less than 10 meters deep with muddy or sandy substrates, often near river mouths where freshwater mixes with seawater.
Diet
This species primarily feeds on small fish such as anchovies and sardines, as well as shrimp and squid. They hunt using echolocation, typically foraging in groups during the day in shallow waters. Feeding occurs mainly at dawn and dusk when prey is more active.
Behavior
La Plata dolphins are usually solitary or found in small groups of up to five individuals, showing little social interaction compared to other dolphins. They are active during the day, spending time swimming near the surface and using echolocation for navigation and hunting. They exhibit territorial behavior in feeding areas but are not highly migratory, staying within their coastal habitats.
Conservation Status
The IUCN status is Endangered, with population trends showing a decline due to bycatch in fishing nets and habitat degradation. Major threats include pollution and boat strikes in busy coastal areas.