endangered marine species include the manatee, seals, sea lions, turtles, and whales; drift net fishing is hastening the decline of fish stocks and contributing to international disputes; municipal sludge pollution off eastern US, southern Brazil, and eastern Argentina; oil pollution in Caribbean Sea, Gulf of Mexico, Lake Maracaibo, Mediterranean Sea, and North Sea; industrial waste and municipal sewage pollution in Baltic Sea, North Sea, and Mediterranean Sea

Geography - note:

major chokepoints include the Dardanelles, Strait of Gibraltar, access to the Panama and Suez Canals; strategic straits include the Strait of Dover, Straits of Florida, Mona Passage, The Sound (Oresund), and Windward Passage; the Equator divides the Atlantic Ocean into the North Atlantic Ocean and South Atlantic Ocean

Economy ::Atlantic Ocean

Economy - overview:

The Atlantic Ocean provides some of the world's most heavily trafficked sea routes, between and within the Eastern and Western Hemispheres. Other economic activity includes the exploitation of natural resources, e.g., fishing, dredging of aragonite sands (The Bahamas), and production of crude oil and natural gas (Caribbean Sea, Gulf of Mexico, and North Sea).

Transportation ::Atlantic Ocean

Ports and terminals:

Alexandria (Egypt), Algiers (Algeria), Antwerp (Belgium), Barcelona
(Spain), Buenos Aires (Argentina), Casablanca (Morocco), Colon
(Panama), Copenhagen (Denmark), Dakar (Senegal), Gdansk (Poland),
Hamburg (Germany), Helsinki (Finland), Las Palmas (Canary Islands,
Spain), Le Havre (France), Lisbon (Portugal), London (UK), Marseille
(France), Montevideo (Uruguay), Montreal (Canada), Naples (Italy),
New Orleans (US), New York (US), Oran (Algeria), Oslo (Norway),
Peiraiefs or Piraeus (Greece), Rio de Janeiro (Brazil), Rotterdam
(Netherlands), Saint Petersburg (Russia), Stockholm (Sweden)

Transportation - note: