Southern krill
Euphausia lucens
Euphausia lucens is a small shrimp-like crustacean known as krill, typically reaching about 1–2 cm in length.
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About this species
Species identity
Euphausia lucens is a small shrimp-like crustacean known as krill, typically reaching about 1–2 cm in length. It lives in the water column and swims actively using its thoracic legs, often forming dense swarms. Its semi-transparent body and light-producing organs are characteristic features of many krill species.
Where it lives
Euphausia lucens is found in the Southern Hemisphere, spanning the Atlantic, Indian and Pacific Oceans. It occurs mainly in coastal and shelf waters, where nutrient-rich conditions support high plankton productivity.
This species often concentrates in areas influenced by upwelling and can form large aggregations in productive zones.
Role in the ecosystem
Southern krill helps explain how marine food webs function through its ecological role, habitat use, and connection to broader ecosystem change.
Scientific reference
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Ocean Literacy Connections
This resource can be explored through Ocean biodiversity.
- How do ocean habitats support so many forms of life and interaction?
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