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Baer Pugolovka
The Baer pugolovka (''Benthophilus baeri'') is a species of goby widespread in the southern and central Caspian Sea, to Lenkoran Lankaran ( az, Lənkəran, ) is a city in Azerbaijan, on the coast of the Caspian Sea, near the southern border with Iran. As of 2021, the city had a population of 89,300. It is next to, but independent of, Lankaran District. The city forms a dis ... in south. Also near the Chechen Island, Tyuleniy Islands, and in Bakhtemirovskaya Borozdina in north. This species occurs at depths of from . Males can reach a length of TL while females only reach TL. References Benthophilus Fish of Western Asia Fish of the Caspian Sea Fish described in 1877 Endemic fauna of the Caspian Sea {{Gobiidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karl Fedorovich Kessler
Karl Fedorovich Kessler (19 November 1815 – 3 March 1881) was a German-Russian zoologist and author of zoological taxa signed ''Kessler'', who was mostly active in Kyiv, Ukraine. He conducted most of his studies of birds in Ukrainian regions of the Russian Empire: Kiev Governorate, Volyn Governorate, Kherson Governorate, Poltava Governorate and Bessarabia. He also studied the fish of the Dniester, Dnieper, and Southern Bug rivers, and on the Ukrainian coast of the Black Sea. Kessler was one of the first zoologists to propose that mutual aid, rather than mutual struggle, was the main factor in the evolution of a species. The anarchist Peter Kropotkin later developed this theory in his book '' Mutual Aid: A Factor of Evolution''. Tribute The Kessler's gudgeon ''(Romanogobio kesslerii)'' was named after him. See also * :Taxa named by Karl Kessler *Antoine Laurent Apollinaire Fée *Jean-Charles Houzeau Jean-Charles Houzeau de Lehaie (October 7, 1820 – July 12, 1888) wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of 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 produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, 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 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 specific name or the specific epithet (in botanical nomenclature, also sometimes i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Goby
Goby is a common name for many species of small to medium sized ray-finned fish, normally with large heads and tapered bodies, which are found in marine, brackish and freshwater environments. Traditionally most of the species called gobies have been classified in the order Perciformes as the suborder Gobioidei but in the 5th Edition of ''Fishes of the World'' this suborder is elevated to an order Gobiiformes within the clade Percomorpha. Not all the species in the Gobiiformes are referred to as gobies and the "true gobies" are placed in the family Gobiidae, while other species referred to as gobies have been placed in the Oxudercidae. Goby is also used to describe some species which are not classified within the order Gobiiformes, such as the engineer goby or convict blenny ''Pholidichthys leucotaenia''. The word goby derives from the Latin ''gobius'' meaning "gudgeon", and some species of goby, especially the sleeper gobies in the family Eleotridae and some of the dartfishes are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caspian Sea
The Caspian Sea is the world's largest inland body of water, often described as the world's largest lake or a full-fledged sea. An endorheic basin, it lies between Europe and Asia; east of the Caucasus, west of the broad steppe of Central Asia, south of the fertile plains of Southern Russia in Eastern Europe, and north of the mountainous Iranian Plateau of Western Asia. It covers a surface area of (excluding the highly saline lagoon of Garabogazköl to its east) and a volume of . It has a salinity of approximately 1.2% (12 g/L), about a third of the salinity of average seawater. It is bounded by Kazakhstan to the northeast, Russia to the northwest, Azerbaijan to the southwest, Iran to the south, and Turkmenistan to the southeast. The sea stretches nearly from north to south, with an average width of . Its gross coverage is and the surface is about below sea level. Its main freshwater inflow, Europe's longest river, the Volga, enters at the shallow north end. Two deep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lenkoran
Lankaran ( az, Lənkəran, ) is a city in Azerbaijan, on the coast of the Caspian Sea, near the southern border with Iran. As of 2021, the city had a population of 89,300. It is next to, but independent of, Lankaran District. The city forms a distinct first-order division of Azerbaijan. Etymology The old form of the name was "Langarkanan" that in Persian means "the place of pulling up the anchor(s)" : "Langar" (, anchor) + "kan" (, to pull) + "an"(, suffix of places). However, some sources state that Lankaran is said to come from the Talish words for 'Cane house', which sounds as 'Lan Kəon'. Alternatively, from Median ''*Lan(a)karan-'', where *''karan-'' means 'border, region, land' and ''Lan'' is probably a name of a Caspian tribe. History The city was built on a swamp along the northern bank of the river bearing the city's name. There are remains of human settlements in the area dating back to the Neolithic period as well as ruins of fortified villages from the Bronze and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gobiidae
Gobiidae or gobies is a family of bony fish in the order Gobiiformes, one of the largest fish families comprising more than 2,000 species in more than 200 genera. Most of gobiid fish are relatively small, typically less than in length, and the family includes some of the smallest vertebrates in the world, such as '' Trimmatom nanus'' and ''Pandaka pygmaea'', ''Trimmatom nanus'' are under long when fully grown, then ''Pandaka pygmaea'' standard length are , maximum known standard length are . Some large gobies can reach over in length, but that is exceptional. Generally, they are benthic or bottom-dwellers. Although few are important as food fish for humans, they are of great significance as prey species for other commercially important fish such as cod, haddock, sea bass and flatfish. Several gobiids are also of interest as aquarium fish, such as the dartfish of the genus ''Ptereleotris''. Phylogenetic relationships of gobiids have been studied using molecular data. Descript ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chechen Island
, image_name = , image_caption = , image_size = , map_image = Caspian5CHN.png , map_caption = Location of Chechen Island , location = Caspian Sea , coordinates = , area_km2 = 55 , length_km = 15 , width_km = 10 , highest_mount = , elevation_m = , population = No permanent residents , population_as_of = , density_km2 = , country = Russia , country_admin_divisions_title = Republic , country_admin_divisions = Dagestan Chechen Island (russian: Остров Чечень; Ostrov Chechen') is a coastal island on the western shore of the Caspian Sea. It is located 20 km east of Krainovka right off the headland on the northern tip of the Agrakhan Peninsula. This island belongs to the Republic of Dagestan, a federal subject of the Russian Federation. The island has a length of and a maximum width of 10 km. The sea around Chechen Island usually freezes between January and March. Adja ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tyuleniy Archipelago (Kazakhstan)
, native_name = , image_name = Tyuleni-ostrova2.png , image_caption = Islands of the Tyuleniy Archipelago , image_size = , map_image = Caspian5TYU2.png , map_caption = Location of the Tyuleniy Archipelago in the Caspian Sea. , nickname = , location = Caspian Sea, , coordinates = , archipelago = , total_islands = , major_islands = , area_km2 = 130 , length_km = , width_km = , highest_mount = , elevation_m = 2 , population = 5 , population_as_of = , density_km2 = , ethnic_groups = , country = Kazakhstan , country_admin_divisions_title = Region , country_admin_divisions = Mangystau Region , country_admin_divisions_title_1 = , country_admin_divisions_1 = , additional_info = The Tyuleniy Archipelago ( kk, Түлен аралдары ''Tülen araldary'', russian: Тюленьи острова), is an island group in the north-eastern Caspian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Measurement
Fish measurement is the measuring of individual fish and various parts of their anatomies. These data are used in many areas of ichthyology, including taxonomy and fisheries 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. Simply put, 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 (sharks and rays), as well as some other fishes. Total length meas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Benthophilus
The tadpole-gobies (''Benthophilus''), also called pugolovkas (which means "tadpole" in Ukrainian), are a genus of Ponto-Caspian fishes in the family Gobiidae. They are distributed in the fresh and brackish waters of basins of the Black Sea, Caspian Sea and the Sea of Azov, up to salinities of about 20 ‰. They typically live in habitats such as the deep waters of the Caspian (salinity about 13 ‰) and in the deltas, estuaries and coastal waters of the Ponto-Caspian. Tadpole-gobies are small fish, never larger than 15 cm, and usually smaller. Their life span is about one year. After spawning they die. Species There are currently 20 recognized species in this genus:Boldyrev V.S., Bogutskaya N.G. (2007) Revision of the tadpole-gobies of the genus ''Benthophilus'' (Teleostei: Gobiidae). Ichthyol. Explor. Freshwaters, 18(1): 31-9[First page]/ref> * '' Benthophilus abdurahmanovi'' Ragimov, 1978 (Abdurahmanov's pugolovka) * '' Benthophilus baeri'' Kessler, 1877 (Bae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Of Western Asia
Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Approximately 95% of living fish species are ray-finned fish, belonging to the class Actinopterygii, with around 99% of those being teleosts. The earliest organisms that can be classified as fish were soft-bodied chordates that first appeared during the Cambrian period. Although they lacked a true spine, they possessed notochords which allowed them to be more agile than their invertebrate counterparts. Fish would continue to evolve through the Paleozoic era, diversifying into a wide variety of forms. Many fish of the Paleozoic developed external armor that protected them from predators. The first fish with jaws appeared in the Silurian period, after which many (such as sharks) became formidable marine predators rather than just the prey of arthropods. Mos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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