African angelshark explained

The African angelshark (Squatina africana) is an angelshark of the family Squatinidae.

Measurements

Born: 28–30 cm TL; Mature: ~ 80 cm (M), 90 cm (F) TL; Max: ~ 122 cm TL.

Identification

Color: Are a greyish or a reddish-brown, there are many light and dark spots, which are often large granular-centered ocelli in young fish. Obtains larger symmetrical dark bands or saddles, blotches on a broad, angular, high pectoral fins. It has a dark tail base, with white margins. Body: Has simple flat nasal barbels, with its tips tapering or spatulate. The anterior nasal flaps smooth or are slightly fringed. There are no angular lobes on lateral dermal flaps. Enlarged thorns on its head, and not back. Obtains a concave between its eyes.

Distribution and range

Western Indian Ocean: found in east and southern Africa; South Africa to Mozambique, Tanzania and Madagascar, and possibly Somalia. Nominal west African records possibly based on another species. 4°S - 32°S.

Climate and habitat

Subtropical; continental shelf and upper slope, demersal, marine. Usually found in sand and mud. From surfing too? - 494 m, but usually occurs at 60–300 m down.

Behavior

Lies in wait buried underneath sand or mud to ambush its prey with lightning-fast reflexes and great precision.

Biology

Diet: Feeds on small bony fishes, squid and octopuses, and including shrimp. Reproduction: Is ovoviviparous and gives birth to at least 7 or 11 pups per litter.

Status

IUCN Red List

near threatened. It is common only on the east coast of South Africa. Trawl fishery bycatch.

Threat to humans

Traumatogenic.

Resilience and vulnerability

Very low, minimum population doubling time more than 14 years; high vulnerability.

References