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Porgies
The Sparidae are a family of fish in the order Perciformes, commonly called sea breams and porgies. The sheepshead, scup, and red seabream are species in this family. Most sparids are deep-bodied compressed fish with a small mouth separated by a broad space from the eye, a single dorsal fin with strong spines and soft rays, a short anal fin, long pointed pectoral fins and rather large firmly attached scales. They are found in shallow temperate and tropical waters and are bottom-dwelling carnivores. There are hermaphrodites in the Sparidae. Protogyny and protandry appear sporadically through this lineage of fish. Simultaneous hermaphrodites and bi-directional hermaphrodites do not appear as much since Sparidae are found in shallower waters. Species of fish that express a hermaphroditic condition usually "lack a genetic hardwire", therefore ecological factors play a role in sex determination. Most species possess grinding, molar-like teeth. Eating the head is known to cause hall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Protogyny
Sequential hermaphroditism (called dichogamy in botany) is a type of hermaphroditism that occurs in many fish, gastropods, and plants. Sequential hermaphroditism occurs when the individual changes its sex at some point in its life. In particular, a sequential hermaphrodite produces eggs (female gametes) and sperm (male gametes) at different stages in life. Species that can undergo these changes from one sex to another do so as a normal event within their reproductive cycle that is usually cued by either social structure or the achievement of a certain age or size. In animals, the different types of change are male to female (protandry or protandrous hermaphroditism), female to male (protogyny or protogynous hermaphroditism), bidirectional (serial or bidirectional hermaphroditism). Both protogynous and protandrous hermaphroditism allow the organism to switch between functional male and functional female. Bidirectional hermaphrodites have the capacity for sex change in either directi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calamus (fish)
''Calamus'' is a genus of porgies in the family Sparidae. It contains thirteen described species. Species '' Calamus arctifrons'', Grass porgy ''Calamus bajonado'', Jolthead porgy '' Calamus brachysomus'', Pacific porgy '' Calamus calamus'', Saucereye porgy '' Calamus campechanus'', Campeche porgy '' Calamus cervigoni'', Spotfin porgy '' Calamus leucosteus'', Whitebone porgy '' Calamus mu'', Flathead porgy ''Calamus nodosus'', Knobbed porgy ''Calamus penna'', Sheepshead porgy ''Calamus pennatula'', Pluma porgy ''Calamus proridens'', Littlehead porgy ''Calamus taurinus Calamus may refer to: Botany and zoology * ''Calamus'' (fish), a genus of fish in the family Sparidae * ''Calamus'' (palm), a genus of rattan palms * Calamus, the hollow shaft of a feather, also known as the quill * ''Acorus calamus'', the swee ...'', Galapagos porgy References * Extant Rupelian first appearances Marine fish genera Taxa named by William John Swainson Rupelian genus first appearanc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Protandry
Sequential hermaphroditism (called dichogamy in botany) is a type of hermaphroditism that occurs in many fish, gastropods, and plants. Sequential hermaphroditism occurs when the individual changes its sex at some point in its life. In particular, a sequential hermaphrodite produces eggs (female gametes) and sperm (male gametes) at different stages in life. Species that can undergo these changes from one sex to another do so as a normal event within their reproductive cycle that is usually cued by either social structure or the achievement of a certain age or size. In animals, the different types of change are male to female (protandry or protandrous hermaphroditism), female to male (protogyny or protogynous hermaphroditism), bidirectional (serial or bidirectional hermaphroditism). Both protogynous and protandrous hermaphroditism allow the organism to switch between functional male and functional female. Bidirectional hermaphrodites have the capacity for sex change in either directi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diplodus Cervinus
''Diplodus cervinus'', the zebra sea bream, is a species of seabream belonging to the family Sparidae. Description The zebra seabream has a high compressed laterally body with a pointed snout and thick lips. It is a medium-sized fish which can reach a maximum length of 55 cm, with an average length of 35 cm. Its background color is silvered with dark vertical bands, the first five ones run across the body from the caudal peduncle to the pectoral fins level, another characteristic dark band cross the space between the eyes while crossing them. Distribution & habitat ''Diplodus cervinus'' is found in eastern Atlantic Ocean from Gulf of Biscay to South Africa and also in Mediterranean Sea. Youth, it prefers shallow and quiet living areas like rocks, piers and grass beds. Adult, it usually lives rocky slopes and wrecks. Biology According to the fishing pressure which undergoes on the zebra seabream living area, it has a solitary or gregarious behaviour. The zebra seabrea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amamiichthys
''Amamiichthys matsubarai'' also known as the hoshierenko is a species of fish in the family Sparidae found only in Amami Island, Ryukyu Islands in Japan. This species is the only known member of the genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nom ... ''Amamiichthys''.Tanaka, F. & Iwatsuki, Y. (2015): ''Amamiichthys'', a new genus for the sparid fish ''Cheimerius matsubarai'' Akazaki 1962, and redescription of the species, with designation of a neotype. ''Zootaxa 4007 (2): 195–206.'' References Sparidae Monotypic marine fish genera {{Perciformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cymatoceps
The black musselcracker (''Cymatoceps nasutus'') is a South African species of marine fish in the family Sparidae. It is the only species of its genus ''Cymatoceps''. It reaches in length and almost in weight. It is found in coastal rocky areas to depths of , and feeds on hard-shelled invertebrates such as crabs and sea urchin Sea urchins () are spiny, globular echinoderms in the class Echinoidea. About 950 species of sea urchin live on the seabed of every ocean and inhabit every depth zone from the intertidal seashore down to . The spherical, hard shells (tests) of ...s. The black musselcracker is a popular sport fish in South Africa. Because it is eagerly sought after, this species experiences a lot of over harvesting, which diminishes its chances of a stable population. The reason that black musselcracker is vulnerable to over harvesting is mainly because they have a slow growth rate, which means that they are most likely being harvested before they are old enough to r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crenidens
''Crenidens'' is a small genus of three species of seabream from the family Sparidae from the western Indian Ocean. It was previously regarded as monotypic, with the sole species being the Karenteen sea bream '' Crenidens crenidens'' but two other species are now accepted as valid species, separate from the type species, ''C. crenidens''. Species ''Crenidens'' contains three recognised species. It was considered to be monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispec ... but a second and third species are now regarded as valid. * '' Crenidens crenidens'' ( Forsskål, 1775) (Karanteen seabream) * '' Crenidens indicus'' Day,1873 * '' Crenidens macracanthus'' Günther (1874 (Günther’s seabream) References {{Taxonbar, from=Q2341414 Sparidae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cheimerius
''Cheimerius nufar'', also known as the Santer seabream, is a species in the family Sparidae and is found in the Indian Ocean, from the Red Sea, down to the southern Cape coast in South Africa and as far east as India and Sri Lanka. This species is the only known member of the genus ''Cheimerius''. Unlike other members of the sparid family, ''C. nufar'' is gonochoric In biology, gonochorism is a sexual system where there are only two sexes and each individual organism is either male or female. The term gonochorism is usually applied in animal species, the vast majority of which are gonochoric. Gonochorism c ... (does not change sex after birth). References Sparidae Monotypic ray-finned fish genera Monotypic marine fish genera Fish described in 1930 Taxa named by J. L. B. Smith {{Perciformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
François-Louis Laporte, Comte De Castelnau
François-Louis Nompar de Caumont Laporte, comte de Castelnau (born ''François-Louis Nompar de Caumont La Force''; 24 December 1802 – 4 February 1880) was a French naturalist, known also as François Laporte or Francis de Castelnau. The standard author abbreviation Castelnau is used to indicate him when citing a botanical name and zoological names other than insects. Laporte is typically used when citing an insect name, or Laporte de Castelnau. Life Born in London, Castelnau studied natural history in Paris. From 1837 to 1841 he traveled in the United States, Texas, and Canada. He visited Middle Florida from November 1837 until March 1838, publishing "Essai sur la Floride du Milieu" in 1843. In Canada he studied the fauna of the Canadian lakes and the river systems of Upper and Lower Canada (roughly corresponding to the modern provinces of Ontario and Quebec) and of the United States. Castelnau, a French savant, was sent by Louis Philippe, in 1843, with two botanists and a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
