Grampus griseus

Distribution: Temperate and tropical waters. In Myanmar, recorded in the offshore waters of Bay of Bengal (Parnum 2019).

Sumber: Mammals of Myanmar: an annotated checklist

Conservation: CITES – Appendix II; IUCN – Data Deficient.

Sumber: Order Cetacea

Distribution: Worldwide: temperate to tropical waters.

Sumber: Order Cetacea

PROTECTED STATUS: CITES - Appendix II as Order Cetacea.

Sumber: Order Cetacea

DISTRIBUTION: Temperate and tropical waters of the world.

Sumber: Order Cetacea

Habitat. Primarily deep waters (400 - 1000 m) offshore from the continental slopes, where sea-surface temperature is 15 - 25 ° C. Risso’s Dolphin is rarely found in water less than 10 ° C, which results in seasonal population movements in some parts of the world. It prefers habitat over escarpments and steep seafloor topography, resulting in an overall patchy distribution that loosely outlines continents and major oceanic islands. There is evidence, however, that habitat use by Risso’s Dolphin is coordinated to avoid spatial overlap with Cuvier’s Beaked Whale (Ziphius cavirostris) or temporally with the Sperm Whale (Physeter macrocephalus). Risso’s Dolphin was once uncommon off southern California, but a permanent increase in its abundance occurred in the region after the 1982 - 1983 El Nino.

Sumber: Delphinidae