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Brazilian Electric Ray
''Narcine brasiliensis'', the Brazilian electric ray or lesser numbfish, is a species of electric ray in the family Narcinidae Narcinidae, or numbfishes, are a family of electric rays (order Torpediniformes). They are bottom-dwelling cartilaginous fishes with large, rounded pectoral fin discs and long tails. They can produce an electric discharge for defense, from whic .... It inhabits coastal waters of the Southwest Atlantic from souther Brazil through Uruguay to northern Argentina. Habitat This species is considered a “warm water species”. When there's a temperature gradient between an inshore and an offshore they will habituate at the depths with the highest temperature (Menni 2000). The density of this species had a higher concentration in temperatures that were greater than 20ºC (Vianna 2009). They prefer shallow waters because that is usually the warmest part of the water. During the summer, they are abundant in coastal water with depths that go to 20 meters and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ignaz Von Olfers
Ignaz Franz Werner Maria von Olfers (30 August 1793 – 23 April 1871) was a German naturalist, historian and diplomat. Olfers was born in Münster. In 1816 he travelled to Brazil as a diplomat. In 1839 he was made director of the royal art collections and had significant influence on Frederick William IV of Prussia for a re-development of the Museumsinsel, Berlin. Together with architect Friedrich August Stueler, he developed the concept of the Neues Museum, Berlin and had great influence on organisation and presentation of exhibits and interior. His daughter was the writer and illustrator Marie von Olfers. Olfers described a number of new mammal species in Wilhelm Ludwig von Eschwege's ''Journal von Brasilien'' (1818). In 1819, '' Olfersia'' which is a genus of ferns (in the family Dryopteridaceae) from South America, was published, then a species of South American snake Snakes are elongated, Limbless vertebrate, limbless, carnivore, carnivorous reptiles of the suborde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Ray
The electric rays are a group of rays, flattened cartilaginous fish with enlarged pectoral fins, composing the order Torpediniformes . They are known for being capable of producing an electric discharge, ranging from 8 to 220 volts, depending on species, used to stun prey and for defense. There are 69 species in four families. Perhaps the best known members are those of the genus ''Torpedo''. The torpedo undersea weapon is named after it. The name comes from the Latin , 'to be stiffened or paralyzed', from the effect on someone who touches the fish. Description Electric rays have a rounded pectoral disc with two moderately large rounded-angular (not pointed or hooked) dorsal fins (reduced in some Narcinidae), and a stout muscular tail with a well-developed caudal fin. The body is thick and flabby, with soft loose skin with no dermal denticles or thorns. A pair of kidney-shaped electric organs are at the base of the pectoral fins. The snout is broad, large in the Narcinidae, b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Narcinidae
Narcinidae, or numbfishes, are a family of electric rays (order Torpediniformes). They are bottom-dwelling cartilaginous fishes with large, rounded pectoral fin discs and long tails. They can produce an electric discharge for defense, from which their scientific name is derived (Greek , meaning 'paralysis'). Members of this family are commonly known as the numbfishes, and are found almost worldwide in warm temperate and tropical continental and continental insular waters. They are strictly marine, so are absent from rivers and lakes. They occur in sandy beaches, muddy enclosed bays, estuaries, off coral reefs and river mouths, and on the upper continental slope to a depth of 1,071 m.Compagno, L.J.V. and Last, P.R. (1999). Narcinidae. Numbfishes. p. 1433-1437. In: K.E. Carpenter and V.H. Niem (eds.) ''FAO identification guide for fishery purposes. The living marine resources of the Western Central Pacific.'' Rome: Food and Agriculture Organization. Description Small to medium- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abrolhos Marine National ParkRobertoCostaPinto16
Abrolhos or Abrolhos Islandsmay refer to two archipelagos: * Abrolhos Archipelago, off the north-east coast of Brazil ** Abrolhos Marine National Park The Abrolhos Marine National Park ( pt, Parque Nacional Marinho dos Abrolhos ) is a national park that was established in 1983 covering most of the Abrolhos Archipelago area in the state of Bahia, Brazil. Location The park was established on 6 A ..., at the Atlantic Ocean, off the East coast of Brazil * Houtman Abrolhos, a chain of islands in the Indian Ocean off the West coast of Australia {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Narcine
''Narcine'' is a genus of electric rays in the family Narcinidae. These species have a rounded pectoral fin disc and two dorsal fins, the first usually smaller than the second and placed behind the pelvic fin bases. The tail is longer than the disc and has a lateral fold. The spiracles are close behind the eyes, the nasal flaps are merged into a flap in front of the mouth. The teeth are nearly flat, with a central point. Species There are currently 21 recognized species in this genus: * '' Narcine atzi'' M. R. de Carvalho & J. E. Randall, 2003 (Atz's numbfish) * ''Narcine baliensis'' M. R. de Carvalho & W. T. White, 2016 Carvalho, M.R.d. & White, W.T. (2016): ''Narcine baliensis'', a new species of electric ray from southeast Asia (Chondrichthyes: Torpediniformes). ''Zootaxa, 4127 (1): 149–160.'' * '' Narcine bancroftii'' ( E. Griffith & C. H. Smith, 1834) (Lesser electric ray) * ''Narcine brasiliensis'' ( Olfers, 1831) (Brazilian electric ray) * ''Narcine brevilabiata'' B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Of The Western Atlantic
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. Most ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Of Brazil
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. Most fis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Of Uruguay
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] |
Fish Described In 1831
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. Most fis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
