Informative Communications Newsletter for the week of June 24th through June 30th
Informative Communications Newsletter for the week of June 24th through June 30 th Informative Thoughts: Risso Dolphin (Grampus griseus) The Risso’s Dolphin (Grampus griseus), sometimes called the gray dolphin, is the only species of dolphin in the genus Grampus. Risso’s dolphins are cetaceans found worldwide in temperate and tropical waters, usually in deep waters rather than close to land. As well as the tropical parts of the Indian, Pacific and Atlantic Oceans, Rissos are also found in the Mediterranean and Red Seas, though are absent from the Black Sea. Their preferred environment is just off the continental shelf on steep banks, with water depths varying from 400 – 1000 metres and water temperature at least 10° Centigrade and preferably in excess of 15° Centigrade. Another common name for Risso’s dolphin is the ‘Grampus ’, although historically, it was the common name used to describe the orca (killer whale). The specific name griseus refers to the mottled (almos