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In Taiwan, cobia of 100 to 600 g are cultured for 1.0 to 1.5 years until they reach 6 to 8 kg. They are then exported to Japan, China, North America, and Europe. Around 80% of marine cages in Taiwan are devoted to cobia culture. [11] In 2004, the FAO reported that 80.6% of the world's cobia production was in China and Taiwan. [13]
The sucking disc begins to show when the young fish are about 1 cm (0.4 in) long. When the remora reaches about 3 cm (1.2 in), the disc is fully formed and the remora can then attach to other animals. The remora's lower jaw projects beyond the upper, and the animal lacks a swim bladder. [9] Some remoras associate with specific host species.
In Taiwan cobia weighing 100–600 grams are cultured for 1–1.5 years to reach the 6–8 kilograms (13–18 lb) needed for export to Japan. Currently, around 80% of marine cages in Taiwan are devoted to cobia culture. [2] In 2004, the FAO reported that 80.6% of the world's cobia production was by China and Taiwan. [4]
The common remora (Remora remora) is a pelagic marine fish [3] belonging to the family Echeneidae. The dorsal fin, which has 22 to 26 soft rays, acts as a suction cup , creating a vacuum [ 4 ] to allow the fish to attach to larger marine animals, such as whales, dolphins, sharks, and sea turtles.
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Image Scientific name Common name Distribution Remora albescens (Temminck & Schlegel, 1850): white suckerfish: western Indian Ocean including Réunion and Mauritius, in the eastern Pacific Ocean from San Francisco to Chile (but is rare north of Baja California), and in the western and eastern central Atlantic Ocean from Florida and the Gulf of Mexico to Brazil and St. Paul's Rocks.
One of the whalesucker's most outstanding traits, shared among the Echeinedae family, is an adhesive disk. The adhesive disk is a round, oval, sucking disk located on the top of a remora's head, with two layers of lamellae that allow for the remora to stick and unstick to the epidermal surfaces of larger fish, mainly cetaceans.
Unlike some other remora species, parasitic copepods comprise a negligible part of the diet of the white suckerfish, suggesting it may not have a mutualistic relationship with its host. [6] The white suckerfish responds to a touch on its belly by forcefully erecting its pelvic fins, possibly an adaptation to avoid crushing by its host. [5]