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An anchialine system (/ ˈ æ ŋ k i ə l aɪ n /, from Greek ankhialos 'near the sea') is a landlocked body of water with a subterranean connection to the ocean.Depending on its formation, these systems can exist in one of two primary forms: pools or caves.
The smaller Dos Ojos became a part of Sac Actun, making the Sistema Sac Actun the longest known underwater cave system in the world. [2] Dos Ojos lies north of the rest of the Sac Actun cave system. As a separate system, Dos Ojos remained in the top ten, if not the top three, longest underwater cave systems in the world since the late 1980s. [3]
The Great Blue Hole, located near Ambergris Caye, Belize Dean's Blue Hole, Long Island, Bahamas Watling's Blue Hole, San Salvador Island, Bahamas. A blue hole is a large marine cavern or sinkhole, which is open to the surface and has developed in a bank or island composed of a carbonate bedrock (limestone or coral reef).
They are free-swimming crustaceans, typically living in low-oxygen, brackish waters of near-marine caves, and their distribution is linked to the ancient Tethys Sea. The feeding technique of X. tulumensis is unique among crustaceans, and its venom is a useful adaptation that to some extent compensates for being sightless in a nutrient-poor or ...
It is endemic to groundwater and anchialine systems in caves in the Cape Range, Australia. Like other cave-adapted fish, the blind gudgeon is entirely blind and lacks pigmentation, using sensory papillae on its head and body to move around and find food. [4] It has a reduced number of scales on its body and the head is almost scaleless. [5]
Ingolfiella longipes is a species of amphipod crustacean in the family Ingolfiellidae notable for its orange striped coloration. It is known from a single specimen held at the Naturalis Biodiversity Center.
Port Jackson, also referred to as Sydney Harbour, is a ria, or drowned river valley.The deeply indented shape of the ria reflects the dendritic pattern of drainage that existed before the rise in sea level that flooded the valley.
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