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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''. Taxonomy ''Crenidens'' was first proposed as a monospecific genus in 1830 by the French zoologist Achille Valenciennes with ''Crenidens forsskalii'' as its only species and the type species by monotypy. ''C. forsskalii'' is now considered to be a synonym of ''Sparus crenidens'', originally described by Peter Forsskål from the Red Sea of Saudi Arabia and Egypt in 1775. This genus is placed in the family Sparidae within the order Spariformes by the 5th edition of ''Fishes of the World''. Some authorities classify this genus in the subfamily Boopsinae, but the 5th edition of Fishes of the World does not recognise subfamilies within the Sparidae. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crenidens Crenidens
''Crenidens crenidens'', the karanteen seabream or karanteen, is a species of ray-finned fish from the sea bream family Sparidae which was described by the Swedish zoologist Peter Forsskål in 1775. It is native to the western Indian Ocean but has colonised the eastern Mediterranean Sea since 1970. It is one of only three species in genus ''Crenidens'', the others being the little known '' Crenidens macracanthus'' and the partially sympatric '' C. indicus''. Taxonomy ''Crenidens crenidens'' was first formally described as ''Sparus crenidens'' in 1775 by the Swedish-speaking Finnish explorer and naturalist Peter Forsskål with its type localites given as Jeddah the Red Sea in Saudi Arabia and the Gulf of Suez and Red Sea in Egypt. In 1830 Achille Valenciennes proposed the monospecific genus ''Crenidens'' for this species but unnecessarily renamed ''Sparus crenidens'', ''Crenidens forsskalii''. This species is, therefor, the type species of ''Crenidens'' by monotypy. The genus '' ... [...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''. Taxonomy ''Crenidens'' was first proposed as a monospecific genus in 1830 by the French zoologist Achille Valenciennes with ''Crenidens forsskalii'' as its only species and the type species by monotypy. ''C. forsskalii'' is now considered to be a synonym of ''Sparus crenidens'', originally described by Peter Forsskål from the Red Sea of Saudi Arabia and Egypt in 1775. This genus is placed in the family Sparidae within the order Spariformes by the 5th edition of ''Fishes of the World''. Some authorities classify this genus in the subfamily Boopsinae, but the 5th edition of Fishes of the World does not recognise subfamilies within the Sparidae. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crenidens Macracanthus
''Crenidens macracanthus'', Günther's karanteen, is a species of marine ray-finned fish belonging to the family Sparidae, which includes the seabreams and porgies. This fish is found in the Indian Ocean. Taxonomy ''Crenidens macracanthus'' was first formally described in 1874 by the German-born British herpetologist and ichthyologist Albert Günther with its type locality as Madras in India, on the Bay of Bengal. This taxon was previously treated as a synonym of ''Crenidens crenidens'' but was recognised as a valid species in 2013. The genus ''Crenidens'' is placed in the family Sparidae within the order Spariformes by the 5th edition of ''Fishes of the World''. Some authorities classify this genus in the subfamily Boopsinae, but the 5th edition of Fishes of the World does not recognise subfamilies within the Sparidae. Etymology ''Crenidens macracanthus'' has the specific name ''macracanthus'' which means "large spined", a reference to the larger spines in the dorsal and anal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crenidens Indicus
''Crenidens indicus''. Day's karanteen bream, is a species of marine ray-finned fish belonging to the family Sparidae, which includes the seabreams and porgies. This species is found in the Indian Ocean. Taxonomy ''Crenidens indicus'' was first formally described in 1873 by the English zoologist Francis Day with its type locality given as the northern Indian Ocean. This taxon was previously treated as a subspecies of ''Crenidens crenidens'' but was recognised as a valid species in 2013. The genus ''Crenidens'' is placed in the family Sparidae within the order Spariformes by the 5th edition of ''Fishes of the World''. Some authorities classify this genus in the subfamily Boopsinae, but the 5th edition of Fishes of the World does not recognise subfamilies within the Sparidae. Description ''Crenidens indicus'' has a dorsal fin which is supported by 11 spines and 11 soft rays while the anal fin contains3 spines and 10 soft rays. The shape of the body is a slightly compressed oblong ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seabream
Sparidae is a Family (biology), family of ray-finned fishes belonging to the Order (biology), order Spariformes, the seabreams and porgies, although they were traditionally classified in the order Perciformes. The over 150 species are found in shallow and deep marine waters in temperate through tropical regions around the world. Most species are Demersal fish, demersal carnivores. Taxonomy Sparidae was first proposed as a family in 1818 by the French polymath and naturalist Constantine Samuel Rafinesque. Traditionally the taxa within the Spariformes were classified within the Perciformes, with some authorities using the term "Sparoid lineage" for the families Centracanthidae, Nemipteridae, Lethrinidae and Sparidae. Since then the use of molecular phylogenetics in more modern classifications has meant that the Spariformes is recognised as a valid order within the Percomorpha containing six families, with Callanthidae, Sillaginidae and Lobotidae included. Other workers have found th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sparidae
Sparidae is a family of ray-finned fishes belonging to the order Spariformes, the seabreams and porgies, although they were traditionally classified in the order Perciformes. The over 150 species are found in shallow and deep marine waters in temperate through tropical regions around the world. Most species are demersal carnivores. Taxonomy Sparidae was first proposed as a family in 1818 by the French polymath and naturalist Constantine Samuel Rafinesque. Traditionally the taxa within the Spariformes were classified within the Perciformes, with some authorities using the term "Sparoid lineage" for the families Centracanthidae, Nemipteridae, Lethrinidae and Sparidae. Since then the use of molecular phylogenetics in more modern classifications has meant that the Spariformes is recognised as a valid order within the Percomorpha containing six families, with Callanthidae, Sillaginidae and Lobotidae included. Other workers have found that the Centracanthidae is synonymous with Spa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Suez Canal
The Suez Canal (; , ') is an artificial sea-level waterway in Egypt, Indo-Mediterranean, connecting the Mediterranean Sea to the Red Sea through the Isthmus of Suez and dividing Africa and Asia (and by extension, the Sinai Peninsula from the rest of Egypt). The canal is a key trade route between Europe and Asia. In 1858, French diplomat Ferdinand de Lesseps formed the Suez Canal Company, Compagnie de Suez for the express purpose of building the canal. Construction of the canal lasted from 1859 to 1869. The canal officially opened on 17 November 1869. It offers vessels a direct route between the Atlantic Ocean#North Atlantic, North Atlantic and northern Indian Ocean, Indian oceans via the Mediterranean Sea and the Red Sea, avoiding the South Atlantic and southern Indian oceans and reducing the journey distance from the Arabian Sea to London by approximately , to 10 days at or 8 days at . The canal extends from the northern terminus of Port Said to the southern terminus of Port ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lessepsian Migration
The Lessepsian migration (or Erythrean invasion) is the migration of marine species along the Suez Canal, usually from the Red Sea to the Mediterranean Sea, and more rarely in the opposite direction. When the canal was completed in 1869, fish, crustaceans, mollusks, and other marine animals and plants were exposed to an artificial passage between the two naturally separate bodies of water, and cross-contamination was made possible between formerly isolated ecosystems. The phenomenon is still occurring today. It is named after Ferdinand de Lesseps, the French diplomat in charge of the canal's construction. The term was coined by Francis Dov Por in his 1978 book. The migration of invasive species through the Suez Canal from the Indo-Pacific region has been facilitated by many factors, both abiotic and anthropogenic, and presents significant implications for the ecological health and economic stability of the contaminated areas; of particular concern is the fisheries industry in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Standard Length
Fish measurement is the measuring of individual fish and various parts of fish anatomy, their anatomies, for data used in many areas of ichthyology, including Taxonomy (biology), taxonomy and fishery biology. Overall length Standard length (SL) is the length of a fish measured from the tip of the snout to the posterior end of the last vertebra or to the posterior end of the midlateral portion of the Glossary of ichthyology#H, hypural plate. This measurement excludes the length of the caudal fin, caudal (tail) fin. Total length (TL) is the length of a fish measured from the tip of the snout to the tip of the longer lobe of the caudal fin, usually measured with the lobes compressed along the midline. It is a straight-line measure, not measured over the curve of the body. Standard length measurements are used with Teleostei (most Actinopterygii, bony fish), while total length measurements are used with Myxini (hagfish), Petromyzontiformes (lampreys) and usually Elasmobranchii (shark ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Total Length
Fish measurement is the measuring of individual fish and various parts of their anatomies, for data used in many areas of ichthyology, including taxonomy and fishery biology. Overall length Standard length (SL) is the length of a fish measured from the tip of the snout to the posterior end of the last vertebra or to the posterior end of the midlateral portion of the hypural plate. This measurement excludes the length of the caudal (tail) fin. Total length (TL) is the length of a fish measured from the tip of the snout to the tip of the longer lobe of the caudal fin, usually measured with the lobes compressed along the midline. It is a straight-line measure, not measured over the curve of the body. Standard length measurements are used with Teleostei (most bony fish), while total length measurements are used with Myxini (hagfish), Petromyzontiformes ( lampreys) and usually Elasmobranchii (shark Sharks are a group of elasmobranch cartilaginous fish characterized by a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Incisor
Incisors (from Latin ''incidere'', "to cut") are the front teeth present in most mammals. They are located in the premaxilla above and on the mandible below. Humans have a total of eight (two on each side, top and bottom). Opossums have 18, whereas armadillos, anteaters and other animals in the order Edentata have none. Structure Adult humans normally have eight incisors, two of each type. The types of incisors are: * maxillary central incisor (upper jaw, closest to the center of the lips) * maxillary lateral incisor (upper jaw, beside the maxillary central incisor) * mandibular central incisor (lower jaw, closest to the center of the lips) * mandibular lateral incisor (lower jaw, beside the mandibular central incisor) Children with a full set of deciduous teeth (primary teeth) also have eight incisors, named the same way as in permanent teeth. Young children may have from zero to eight incisors depending on the stage of their tooth eruption and tooth development. Typic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phil Heemstra
Phillip Clarence Heemstra (9 December 1941 – 29 August 2019) was an American-South African ichthyologist. He was born in Melrose Park, Illinois, United States as the son of Clarence William Heemstra and his wife, Lydia (born Epcke). He attended school in Ottawa, Illinois, and completed a B.Sc. Zoology in 1963 at the University of Illinois at Urbana, Illinois, as well as his MSc degree (1968) and doctorate (1974) in marine biology at the University of Miami in Miami, Florida. He moved to live in South Africa in 1978. At the time of his death, Heemstra was a curator emeritus of the South African Institute of Aquatic Biodiversity (SAIAB, formerly the J.L.B. Smith Institute of Ichthyology). He specialized in ichthyology and marine fish taxonomy. Career Heemstra was, among other things, a biologist at the marine laboratory of the U.S. Department of Natural Resources in Florida, and from 1978 to 2001 a curator of fish at J.L.B. Smith Institute of Ichthyology in Grahamstown (now ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
