Best Answer: Alien Registration Number (A #), if you have one, is your Personal Identification Number. it is a unique number assigned to you as to register you into a country ,and used for future references , such as a social security card , passport number ,driver's license.
Where do bluefin tuna live? Bluefin tuna live mainly in the North Atlantic pelagic ecosystem and its adjacent seas, especially in the Mediterranean Sea. Geographically, their population is distributed throughout the North Atlantic, from Ecuador to Norway and from the Black Sea to Mexico.
The Atlantic bluefin tuna is the largest of the tuna species. As large predators, bluefin tuna play an important role in pelagic ecosystems. Regulatory Overview. In May 2010, the Center for Biological Diversity (CBD) submitted a petition [pdf] to list Atlantic bluefin tuna under the Endangered Species Act (ESA).pecies: thynnus. Atlantic bluefin tuna are found throughout the North Atlantic Ocean and adjacent seas, including the Mediterranean Sea. They are pelagic , highly migratory species occupying coastal and open ocean areas up to depths of 650 feet (200 m).