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The adipose fin is a soft, fleshy fin found on the back behind the dorsal fin and just forward of the caudal fin. It is absent in many fish families, but found in nine of the 31 euteleostean orders ( Percopsiformes , Myctophiformes , Aulopiformes , Stomiiformes , Salmoniformes , Osmeriformes , Characiformes , Siluriformes and Argentiniformes ...
While replacing propellers is most efficient on ships that are currently under construction, the benefits from newer propeller materials may outweigh the costs of replacing current marine propellers. [3] Despite the initial cost of the propellers, this solution is significantly cheaper to operate, allowing lower cost long distance transit.
Dorsal fin of a shark. A dorsal fin is a fin located on the back of most marine and freshwater vertebrates within various taxa of the animal kingdom.Many species of animals possessing dorsal fins are not particularly closely related to each other, though through convergent evolution they have independently evolved external superficial fish-like body plans adapted to their marine environments ...
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The key distinguishing feature is the dolphin's coloration—a white to pale-yellow patch is found behind the dorsal fin on both sides of the body. [4] The white-sided dolphin's color variations are unique amongst the standard hues of white, grey, black and blue seen on other pelagic cetaceans. [ 4 ]
Adult Chinese white dolphin swimming off the coast of Lantau Island, Hong Kong. In Hong Kong, boat trips to visit the Indo-Pacific humpback dolphins have been running since the 1990s. [22] The dolphins mainly live in the waters of Lantau North, Southeast Lantau, the Soko Islands and Peng Chau. A code of conduct regulates dolphin-watching ...
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