|
Labrus
''Labrus'' is a genus of wrasses native to the eastern Atlantic Ocean into the Mediterranean and Black Sea, Black seas. Biology Like most wrasses, ''Labrus'' species are Sequential hermaphroditism, protogynous, and can undergo sex change from female to male. The form of protogyny differs between species, e.g., ''Ballan wrasse, Labrus bergylta'' is monandric (all fish are born female but can develop into males), while ''Cuckoo wrasse, Labrus mixtus'' is diandric (individuals can be born either male or female, and females can develop into males). ''L. mixtus'' is sexually dimorphic in colouration, while ''L. bergylta'' is not. Species The four currently recognized species in this genus are: Fossil record Fossils of ''Labrus'' are found from the Eocene to the Quaternary (age range: from 55.8 to 0.781 million years ago.). They are known from various localities of France, Italy and the United Kingdom. References Labrus, Labridae Fauna of the Azores, Fauna of Made ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cuckoo Wrasse
The cuckoo wrasse (''Labrus mixtus'') is a species of wrasse native to the eastern Atlantic Ocean from Norway to Senegal, including the Azores and Madeira. It is also found in the Mediterranean Sea. They occur in weedy, rocky areas mostly between . This species is an occasional food fish for local populations but is also popular as a game fish. It is also a popular fish for display in public aquarium, aquaria. Taxonomy The cuckoo wrasse was formally described by Carolus Linnaeus in the 10th edition of his ''Systema Naturae'' published in 1758, Linnaeus gave the Type locality (biology), type locality as "Liburnia", which is modern Dalmatia, Croatia. Etymology The name cuckoo wrasse comes from Cornish people, Cornish fishermen who associated the blue markings with Hyacinthoides non-scripta, bluebell flowers. In the Cornish language, a bluebell is ''bleujenn an gog'', literally "the cuckoo flower".Zeitschrift für Anglistik und Amerikanistik, Volume 13, VEB Verlag Enzyklopädie, 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ballan Wrasse
The ballan wrasse (''Labrus bergylta'') is a species of marine ray-finned fish from the Family (biology), family Labridae, the wrasses. It is found in the eastern Atlantic Ocean, where it inhabits rocky areas. Like many wrasse species, it is a protogynous hermaphrodite—all fish start life as females, and some dominant fish later become males. It is used as a food fish in some areas and it is also finding use as a cleaner fish in the aquaculture of Atlantic salmon (''Salmo salar'') in northwestern Europe. Description The ballan wrasse is a large, heavy bodied wrasse with a relatively deep body and large head. It has a smallish mouth which is surrounded by thick, fleshy, rather wrinkled lips, and the jaws are armed with a single row of robust teeth which are sharp and pointed in young fish but blunter and more worn in older fish. It has a long dorsal fin which has 18–21 spines in its anterior portion and 9–13 branched rays in the rear part. The anal fin is markedly shorter a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Labrus Bergylta
The ballan wrasse (''Labrus bergylta'') is a species of marine ray-finned fish from the family Labridae, the wrasses. It is found in the eastern Atlantic Ocean, where it inhabits rocky areas. Like many wrasse species, it is a protogynous hermaphrodite—all fish start life as females, and some dominant fish later become males. It is used as a food fish in some areas and it is also finding use as a cleaner fish in the aquaculture of Atlantic salmon (''Salmo salar'') in northwestern Europe. Description The ballan wrasse is a large, heavy bodied wrasse with a relatively deep body and large head. It has a smallish mouth which is surrounded by thick, fleshy, rather wrinkled lips, and the jaws are armed with a single row of robust teeth which are sharp and pointed in young fish but blunter and more worn in older fish. It has a long dorsal fin which has 18–21 spines in its anterior portion and 9–13 branched rays in the rear part. The anal fin is markedly shorter and has three spin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Labrus
''Labrus'' is a genus of wrasses native to the eastern Atlantic Ocean into the Mediterranean and Black Sea, Black seas. Biology Like most wrasses, ''Labrus'' species are Sequential hermaphroditism, protogynous, and can undergo sex change from female to male. The form of protogyny differs between species, e.g., ''Ballan wrasse, Labrus bergylta'' is monandric (all fish are born female but can develop into males), while ''Cuckoo wrasse, Labrus mixtus'' is diandric (individuals can be born either male or female, and females can develop into males). ''L. mixtus'' is sexually dimorphic in colouration, while ''L. bergylta'' is not. Species The four currently recognized species in this genus are: Fossil record Fossils of ''Labrus'' are found from the Eocene to the Quaternary (age range: from 55.8 to 0.781 million years ago.). They are known from various localities of France, Italy and the United Kingdom. References Labrus, Labridae Fauna of the Azores, Fauna of Made ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Labrus Viridis France (cropped)
''Labrus'' is a genus of wrasses native to the eastern Atlantic Ocean into the Mediterranean and Black seas. Biology Like most wrasses, ''Labrus'' species are protogynous, and can undergo sex change from female to male. The form of protogyny differs between species, e.g., ''Labrus bergylta'' is monandric (all fish are born female but can develop into males), while ''Labrus mixtus'' is diandric (individuals can be born either male or female, and females can develop into males). ''L. mixtus'' is sexually dimorphic in colouration, while ''L. bergylta'' is not. Species The four currently recognized species in this genus are: Fossil record Fossils of ''Labrus'' are found from the Eocene to the Quaternary (age range: from 55.8 to 0.781 million years ago.). They are known from various localities of France, Italy and the United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northweste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Labrus Merula
The brown wrasse (''Labrus merula'') is a species of wrasse native to the Eastern Atlantic from Portugal to Morocco, including the Azores, as well as in the Mediterranean Sea. This species can reach in standard length, though most do not exceed more than . Description ''Labrus merula'' grows to a maximum length of . Body is moderately elongated, head is broad, shorter or equal to the body depth, with light blue spots. It has strong, canine-like teeth which are rounded in older specimens. Young specimens are green or brownish with light spots, belly is paler, yellow-greyish. Some specimens have a blue-white longitudinal stripe on sides. Old specimens are dark blue, sometimes dark green or brownish. Soft part of dorsal, anal and caudal fins are outlined with light blue stripe. Smaller specimens form small, loose schools, but larger and older specimens are found solitary. It feeds on sea urchins, ophiuroids, mollusks, crabs and worms. Maturity occurs after two years at length ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Labrus Viridis
''Labrus viridis'' (the green wrasse) is a species of wrasse native to the eastern Atlantic Ocean from Portugal to Morocco, as well as through the Mediterranean Sea to the Black Sea. This species is found around rocky reefs amongst the rocks or in eelgrass beds. It can reach in standard length, though most do not exceed . It is one of several species called green wrasse. Description The green wrasse grows to about and is a plump fish with a moderately large head. The eyes are large and the nostrils each have a double opening. The lips are thick and the mouth fairly small, with numerous large teeth. The back is slightly humped, and the belly is slightly convex. The skin is covered with large scales and is smooth and soft, being covered with mucus. The dorsal fin has 18 spines and 12 soft rays. The pectoral fins are large and the caudal fin undivided. In most individuals the colour is bright green with a blue line running along the flank, but some individuals are almost entir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wrasse
The wrasses are a family, Labridae, of marine ray-finned fish, many of which are brightly colored. The family is large and diverse, with over 600 species in 81 genera, which are divided into nine subgroups or tribes. They are typically small, most of them less than long, although the largest, the humphead wrasse, can measure up to . They are efficient carnivores, feeding on a wide range of small invertebrates. Many smaller wrasses follow the feeding trails of larger fish, picking up invertebrates disturbed by their passing. Juveniles of some representatives of the genera ''Bodianus'', '' Epibulus'', '' Cirrhilabrus'', '' Oxycheilinus'', and '' Paracheilinus'' hide among the tentacles of the free-living mushroom corals and '' Heliofungia actiniformis''. Etymology The word "wrasse" comes from the Cornish word ''wragh'', a lenited form of ''gwragh'', meaning an old woman or hag, via Cornish dialect ''wrath''. It is related to the Welsh ''gwrach'' and Breton ''gwrac'h''. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
