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Maghreb Barbel
The Maghreb barbel (''Luciobarbus maghrebensis'') is a ray-finned fish species in the family Cyprinidae. It is found in Morocco. The taxonomy and systematics of the Maghreb barbs are subject to considerable dispute. Some authors consider ''L. maghrebensis'' a distinct species, while others include it in the Algerian barb (''L. callensis''). Furthermore, some taxonomists consider '' B. labiosa'' conspecific with ''L. maghrebensis'' when the latter is considered distinct. It is found in the Sebou basin and rivers flowing into the Moulay Bouselham Lagoon on the Atlantic slope in north-central Morocco Morocco (),, ) officially the Kingdom of Morocco, is the westernmost country in the Maghreb region of North Africa. It overlooks the Mediterranean Sea to the north and the Atlantic Ocean to the west, and has land borders with Algeria to .... References Maghreb barbel Endemic fauna of Morocco Freshwater fish of North Africa Maghreb barbel Taxa named by Ignacio Doa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ray-finned Fish
Actinopterygii (; ), members of which are known as ray-finned fishes, is a class of bony fish. They comprise over 50% of living vertebrate species. The ray-finned fishes are so called because their fins are webs of skin supported by bony or horny spines (rays), as opposed to the fleshy, lobed fins that characterize the class Sarcopterygii (lobe-finned fish). These actinopterygian fin rays attach directly to the proximal or basal skeletal elements, the radials, which represent the link or connection between these fins and the internal skeleton (e.g., pelvic and pectoral girdles). By species count, actinopterygians dominate the vertebrates, and they constitute nearly 99% of the over 30,000 species of fish. They are ubiquitous throughout freshwater and marine environments from the deep sea to the highest mountain streams. Extant species can range in size from '' Paedocypris'', at , to the massive ocean sunfish, at , and the long-bodied oarfish, at . The vast majority of Actino ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can reproduction, produce Fertility, fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology (biology), morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a binomial nomenclature, two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specifi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyprinidae
Cyprinidae is a family of freshwater fish commonly called the carp or minnow family. It includes the carps, the true minnows, and relatives like the barbs and barbels. Cyprinidae is the largest and most diverse fish family and the largest vertebrate animal family in general with about 3,000 species, of which only 1,270 remain extant, divided into about 370 genera. Cyprinids range from about 12 mm in size to the giant barb (''Catlocarpio siamensis''). By genus and species count, the family makes up more than two-thirds of the ostariophysian order Cypriniformes. The family name is derived from the Greek word ( 'carp'). Biology and ecology Cyprinids are stomachless fish with toothless jaws. Even so, food can be effectively chewed by the gill rakers of the specialized last gill bow. These pharyngeal teeth allow the fish to make chewing motions against a chewing plate formed by a bony process of the skull. The pharyngeal teeth are unique to each species and are used ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morocco
Morocco (),, ) officially the Kingdom of Morocco, is the westernmost country in the Maghreb region of North Africa. It overlooks the Mediterranean Sea to the north and the Atlantic Ocean to the west, and has land borders with Algeria to the east, and the disputed territory of Western Sahara to the south. Mauritania lies to the south of Western Sahara. Morocco also claims the Spanish exclaves of Ceuta, Melilla and Peñón de Vélez de la Gomera, and several small Spanish-controlled islands off its coast. It spans an area of or , with a population of roughly 37 million. Its official and predominant religion is Islam, and the official languages are Arabic and Berber; the Moroccan dialect of Arabic and French are also widely spoken. Moroccan identity and culture is a mix of Arab, Berber, and European cultures. Its capital is Rabat, while its largest city is Casablanca. In a region inhabited since the Paleolithic Era over 300,000 years ago, the first Moroccan st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxonomy (biology)
In biology, taxonomy () is the scientific study of naming, defining ( circumscribing) and classifying groups of biological organisms based on shared characteristics. Organisms are grouped into taxa (singular: taxon) and these groups are given a taxonomic rank; groups of a given rank can be aggregated to form a more inclusive group of higher rank, thus creating a taxonomic hierarchy. The principal ranks in modern use are domain, kingdom, phylum (''division'' is sometimes used in botany in place of ''phylum''), class, order, family, genus, and species. The Swedish botanist Carl Linnaeus is regarded as the founder of the current system of taxonomy, as he developed a ranked system known as Linnaean taxonomy for categorizing organisms and binomial nomenclature for naming organisms. With advances in the theory, data and analytical technology of biological systematics, the Linnaean system has transformed into a system of modern biological classification intended to reflect the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Systematics
Biological systematics is the study of the diversification of living forms, both past and present, and the relationships among living things through time. Relationships are visualized as evolutionary trees (synonyms: cladograms, phylogenetic trees, phylogenies). Phylogenies have two components: branching order (showing group relationships) and branch length (showing amount of evolution). Phylogenetic trees of species and higher taxa are used to study the evolution of traits (e.g., anatomical or molecular characteristics) and the distribution of organisms ( biogeography). Systematics, in other words, is used to understand the evolutionary history of life on Earth. The word systematics is derived from the Latin word ''systema,'' which means systematic arrangement of organisms. Carl Linnaeus used 'Systema Naturae' as the title of his book. Branches and applications In the study of biological systematics, researchers use the different branches to further understand the relations ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maghreb
The Maghreb (; ar, الْمَغْرِب, al-Maghrib, lit=the west), also known as the Arab Maghreb ( ar, المغرب العربي) and Northwest Africa, is the western part of North Africa and the Arab world. The region includes Algeria, Libya, Mauritania (also considered part of West Africa), Morocco, and Tunisia. The Maghreb also includes the disputed territory of Western Sahara (controlled mostly by Morocco and partly by the Sahrawi Arab Democratic Republic) and the Spanish cities Ceuta and Melilla.Article 143. As of 2018, the region had a population of over 100 million people. Through the 18th and 19th centuries, English sources often referred to the region as the Barbary Coast or the Barbary States, a term derived from the demonym of the Berbers. Sometimes, the region is referred to as the Land of the Atlas, referring to the Atlas Mountains, which are located within it. The Maghreb is usually defined as encompassing much of the northern part of Africa, includi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barb (fish)
A barb is one of various ray-finned fish species in a non- phylogenetic group, with members in the family Cyprinidae, and especially the genera '' Barbus'' and ''Puntius'', but many others also. They were formerly united with the barbels in the subfamily Barbinae but that group is paraphyletic with the Cyprininae. If the Labeoninae are recognized as distinct, many small African "barbs" would probably, however, warrant recognition as a new subfamily. The root of the word "barb" is common in cyprinid names of European languages, from the Latin ''barba'' ("beard") ( COD): * ''barb'' from Catalan * ''barbi'' from Finnish * ''barbo'' from Spanish * ''barbeau'' from French * ''barbo'' from Italian and many others. This is in reference to the barbels which are prominently seen around the mouth of many "barbs". Genera Genera that contain species with common names including "barb": * '' Barbichthys'' * '' Barbodes'' * ''Barboides'' * '' Barbonymus'' – tinfoil barbs * '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Algerian Barb
The Algerian barb or Tunisian barb, (''Luciobarbus callensis'') is a ray-finned fish species in the family Cyprinidae. It is found in Algeria and Tunisia (and perhaps Morocco). Its natural habitats are rivers, freshwater lakes, and water storage areas. It is not considered a threatened species by the IUCN. The taxonomy and systematics of the Maghreb barbs are subject to considerable dispute. Some authors include '' B. antinorii'', '' B. figuigensis'', '' B. issenensis'', '' B. ksibi'', '' B. labiosa'', '' B. lepineyi'', '' B. massaensis'', '' Carasobarbus moulouyensis'', '' L. pallaryi'' and '' L. setivimensis'' in ''L. callensis'', while others consider them distinct. To further confuse matters, Fishbase considers ''B. labiosa'' to be conspecific with the Maghreb barbel (''L. maghrebensis''), ''B. lepineyi'' to be conspecific with ''L. pallaryi'' when the latter is considered a distinct species, and ''C. moulouyensis'' be placed in the genus ''Carasobarbus ''Carasobarbus'', ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barbus Labiosa
''Barbus labiosa'' is a doubtfully distinct ray-finned fish species in the family Cyprinidae. It is found only in Morocco. Its natural habitat is rivers. It is not considered a threatened species by the IUCN. The taxonomy and systematics of the Maghreb barbs are subject to considerable dispute. Some authors consider ''B. labiosa'' a distinct species, while others include it in the Algerian barb (''Luciobarbus callensis''), or Maghreb barbel The Maghreb barbel (''Luciobarbus maghrebensis'') is a ray-finned fish species in the family Cyprinidae. It is found in Morocco. The taxonomy and systematics of the Maghreb barbs are subject to considerable dispute. Some authors consider ''L. mag ... (''L. maghrebensis''). References {{Taxonbar, from=Q4859784 Cyprinidae Taxonomy articles created by Polbot Taxobox binomials not recognized by IUCN ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sebou River
Sebou (Berber: Asif en Sbu, ar, سبو) is a river in northern Morocco. At its source in the Middle Atlas mountains it is known as the Guigou River (Berber: Asif n Gigu). The river is 496 kilometers long and has an average water flow of 137 m3/s, which makes it the largest North African river by volume. It passes near the city of Fes and discharges to the Atlantic Ocean at Mehdya. Sebou is navigable for only 16 km as far as the city of Kenitra, which has the only river port in Morocco. Its most important tributaries are the Ouergha River, Baht River and Inaouen River. The river supports irrigation in Morocco's most fertile region: the Gharb. History Sebou was known in antiquity as Sububus. Pliny the Elder states that it was "magnificus et navigabilis" (grand and navigable), flowing near the towns of Banasa (near the city of Mechra Bel Ksiri) and Thamusida. There is scant historical reference to the Sebou being used for navigation after the Islamic conquest; nevertheles ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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