Lombok Strait

The Lombok Strait (Indonesian: Selat Lombok) is a strait of the Bali Sea connecting to the Indian Ocean, and is located between the islands of Bali and Lombok in Indonesia. The Gili Islands are on the Lombok side. Its narrowest point is at its southern opening, with a width of about 20 km (12 miles) between the islands of Lombok and Nusa Penida, in the middle of the strait. At the northern opening, it is 40 km (25 miles) across. Its total length is about 60 km (37 miles). As it is minimum 250 m (820 feet) deep—much deeper than the Strait of Malacca—ships that draw too much water to pass through the Malacca Strait (so-called "post Malaccamax" vessels) often use the Lombok Strait instead. The Lombok Strait is notable as one of the main passages for the Indonesian Throughflow (ITF) that exchanges water between the Indian Ocean and the Pacific Ocean. It is also part of the biogeographical boundary between the fauna of the Indomalayan realm and the distinctly different fauna of Australasia. The boundary is known as the Wallace Line, for Alfred Russel Wallace, who first remarked upon the striking difference between animals of Indomalaya and those of Australasia, and how abrupt the boundary was between the two biomes. Biologists believe it was the depth of the Lombok Strait itself that kept the animals on either side isolated from one another. When sea levels dropped during the Pleist

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