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The range of depths in which this fish is found extends from 0 to 913 m (0 to 2,995 ft) below sea level, but it is most common between 50 and 400 m (160 and 1,310 ft). [3] Spotted ratfish typically live closer to the shore in the northern part of their range than in the southern, but it is also found as shallow as 30 m (98 ft) off California. [ 1 ]
The gill arches are condensed into a pouch-like bundle covered by a sheet of skin (an operculum), with a single gill-opening in front of the pectoral fins. [5] The pectoral fins are large enough to generate lift at a relaxed forward momentum, giving the chimaera the appearance of "flying" through the water.
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Most species are restricted to depths below 200 m (660 ft), [3] but a few, notably the spotted ratfish and rabbit fish, can locally be found at relatively shallow depths. They range from 38 to 150 cm (1.25 to 4.92 ft) in maximum total length, depending on species.
The Polynesian rat, Pacific rat or little rat (Rattus exulans), or kiore, is the third most widespread species of rat in the world behind the brown rat and black rat.Contrary to its vernacular name, the Polynesian rat originated in Southeast Asia, and like its relatives has become widespread, migrating to most of Polynesia, including New Zealand, Easter Island, and Hawaii.
This species is found in the Pacific and Southern Oceans, with records from near New Caledonia, New Zealand, and southern Australia; records from South Africa refer to other species. It is a deep-water species that has been recorded on deep continental and insular slopes at depths between 610 and 2,000 metres (2,000 and 6,560 ft), but more ...
The ridge scaled rattail [2] or ridge-scaled grenadier, [3] Macrourus carinatus, is a species of deep-water fish in the family Macrouridae. [1] [2] It has southern circumglobal distribution in temperate to subantarctic waters (34°S–65°S) and is found in the Southern Atlantic, Indian and Pacific Oceans and in the Southern Ocean [1] [2] at depths of about 200–1,200 m (660–3,940 ft).
The rabbit fish can grow up to 1.5 m (5 ft) long, and weigh 2.5 kg (5.5 lb). [2] More specifically, this chimaera species is characterized by a slow-growth rate, and a long life expectancy. In the study of one population, the theoretical asymptotic length of this fish was estimated at 78.87 cm with a yearly growth rate of 6.73% per year. With ...