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wrasse |
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wrasse (răs), common name for a member of the large family Labridae, brilliantly colored fishes found among rocks and kelp in tropical seas. Wrasses, related to the parrotfishes, feed on mollusks and are equipped with shell-crushing teeth in both the mouth and throat. The lips are fleshy, and some wrasses are able to extend the mouth and jaws forward to engulf their prey. Well known on the N Atlantic coast are the cunners (about 1 ft/30 cm long), which are useful scavengers. The tautog, or blackfish, an important food fish of the S New England coast, is a sluggish fish that hibernates in cold weather. Southern wrasses, found off the West Indies and Florida coasts, include the hogfish, a large, showy red fish with a piglike snout, and the puddingwife. The California redfish, or Pacific sheepshead, is a large wrasse reaching up to 3 ft (91 cm) and 30 lb (13.5 kg) and most abundant S of Monterey. The female is a dull red and the male is boldly patterned in crimson and black. The flesh of wrasses is sometimes poisonous to human consumers. Most wrasses belong to the genus Labrus. Wrasses are classified in the phylum Chordata Chordata (kôrdā`tə,–dä`–) ..... Click the link for more information. , subphylum Vertebrata, class Osteichthyes, order Perciformes, family Labridae. wrasseAny of some 300 species (family Labridae) of slender, often brilliantly coloured, fishes, found worldwide in tropical and temperate seas, often on coral reefs. Species range from 2 in. (5 cm) to 7 ft (2 m) long. Wrasses have thick lips, large scales, long fins, and large, often protruding, canine teeth. Most eat invertebrates; some species, called cleaner wrasses, pick off and eat the external parasites of larger fishes. The tautaug (Tautoga onitis) is an edible species. wrasse any marine percoid fish of the family Labridae, of tropical and temperate seas, having thick lips, strong teeth, and usually a bright coloration: many are used as food fishes How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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We collected 32 young female ornate wrasses (body weight, 20-25 g; length, ~ 16-18 cm) from the Tyrrhenian Sea; they were acclimated to laboratory conditions for 1 week. When genuine cleaner wrasses were removed from a test plot, the former look-alikes changed color, his team reports in the August Oecologia. Grober makes a compelling case for the usefulness of fish in understanding mammalian sexuality, noting that in both wrasses and primates individuals are sensitive to social status, social status and increased population density affects reproduction through stress, multiple phenotypes are present within a sex, environmental variation generates variation in the social system, brain structures are correlated with variation in sexual phenotype, and complete behavioral sex reversal takes place. |
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