|
List Of Endangered Fishes
As of September 2016, the International Union for Conservation of Nature (IUCN) lists 643 endangered fish species. 4.2% of all evaluated fish species are listed as endangered. The IUCN also lists ten fish subspecies as endangered. Of the subpopulations of fishes evaluated by the IUCN, 24 species subpopulations have been assessed as endangered. For a species to be considered endangered by the IUCN it must meet certain quantitative criteria which are designed to classify taxa facing "a very high risk of extinction". An even higher risk is faced by ''critically endangered'' species, which meet the quantitative criteria for endangered species. Critically endangered fishes are listed separately. There are 1098 fish species which are endangered or critically endangered. Additionally 3191 fish species (21% of those evaluated) are listed as '' data deficient'', meaning there is insufficient information for a full assessment of conservation status. As these species typically have sma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beastie Bot
Beastie may refer to: Entertainment * Beastie (Alton Towers), a roller coaster previously located at Alton Towers in Staffordshire, England * The Beastie (Kings Island), a previous name for the Woodstock Express roller coaster located at Kings Island in Mason, Ohio * The Beastie (Wonderland Sydney), a roller coaster that previously existed at Wonderland Sydney in Australia * The Beasties, a nickname for the hip hop musical group Beastie Boys * Beastie, a female professional wrestler from the Gorgeous Ladies of Wrestling * "Beastie", a song by Jethro Tull from ''Broadsword and the Beast'' Fiction * ''Beasties'' (film), a 1989 comedy horror film * ''The Beasties'' (book), a 2010 children's book by Jenny Nimmo * ''The Beasties'' (novel), a 1997 young-adult novel by William Sleator * Beasties, a type of creature in the role-playing game '' Changeling: The Dreaming'' * ''Beast Wars'' (Canadian title: ''Beasties''), a Transformers toy line and animated television series Other us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blackspotted Catshark
The blackspotted catshark (''Halaelurus buergeri'') is a catshark of the family Scyliorhinidae. It is found in the waters off the coasts of Japan, Korea, China, and Taiwan between latitudes 39° N and 20° N, at the depths of between 80 and 100 m. It can grow up to 49 cm in length. Description The blackspotted catshark has the appearance of a member of the catshark family, with a cylindrical and slender body, two dorsal fins of equal size, and a smaller anal fin. The body of the blackspotted catshark is thick-skinned and usually a light beige or dark grey color, with distinctive dark spots covering the entire body as well as the fins. Saddles on the side are not prominent, though darker in color compared to the rest of the body. The head is rounded and has a slight indentation, with a short snout. This species does not have barbels. Geographical distribution The blackspotted catshark is native to Japan, China, Korea, Taiwan and the Philippines. Their range is confine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Venezuelan Dwarf Smoothhound
The dwarf smooth-hound (''Mustelus minicanis'') is a houndshark of the family Triakidae. It is found on the continental shelves of the tropical western central Atlantic, off the coast of South America between Cabo de la Vela, Colombia and Rio Caribe, Venezuela Venezuela (; ), officially the Bolivarian Republic of Venezuela ( es, link=no, República Bolivariana de Venezuela), is a country on the northern coast of South America, consisting of a continental landmass and many islands and islets in th ..., at depths between 70 and 180 m. It can grow up to a length of 48 cm. The reproduction of dwarf smooth-hounds is ovoviviparous. References * dwarf smooth-hound Fish of Colombia Fish of Venezuela dwarf smooth-hound {{Shark-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Broadfin Shark
The broadfin shark (''Lamiopsis temminckii'') is a tropical whaler shark, characterized by the broad shape of its pectoral fins. They are classified as requiem sharks of the family Carcharhinidae. This is one of two species in the genus ''Lamiopsis'', the other being the Borneo broadfin shark (''Lamiopsis tephrodes''). The broadfin shark is native to the northern Indian Ocean, and is found close to shore. Its current status according to the IUCN is endangered. Description Females and males of the broadfin shark species are sexually dimorphic. Females, on average, are larger than males, and it is reported that males mature at a smaller size than females. The reported size of females has decreased when compared with previous recordings of the species, with the new maximum size of females being around , while the reported size of males has increased. Another way to tell males and females apart is by looking at the end of their pelvic fins, as males possess calcified claspers (exter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Borneo Broadfin Shark
The Borneo broadfin shark or broadfin shark (''Lamiopsis tephrodes'') is a species of requiem shark, and part of the family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ... Carcharhinidae. See also * List of sharks References Lamiopsis Fish described in 1905 {{shark-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whitecheek Shark
The whitecheek shark or widemouth blackspot shark (''Carcharhinus dussumieri'') is a requiem shark of the family Carcharhinidae, found in the Indo-West Pacific Ocean between latitudes 34°N and 25°S. It can reach a length of 1 m. It feeds mainly on fish, cephalopods, and crustaceans. It is a viviparous species, with the female giving birth to up to four live young. The specific name honours the French explorer and trader Jean-Jacques Dussumier (1792-1883). Description The whitecheek shark grows to a length around . It has a slender body and long head with a rounded snout. The eyes are oval and both jaws have multiple rows of backward-pointing, serrated teeth. The pectoral fins are long, narrow, and curved and have narrow, pointed tips. The first dorsal fin is triangular, uncurved, and moderately sized, and the second dorsal fin is much smaller than the first and bears a large black patch at its apex. The whitecheek shark's dorsal (upper) surface is grey or brownish-gre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sandbar Shark
The sandbar shark (''Carcharhinus plumbeus'') also known as the brown shark or thickskin shark, is a species of requiem shark, and part of the family Carcharhinidae, native to the Atlantic Ocean and the Indo-Pacific. It is distinguishable by its very high first dorsal fin and interdorsal ridge. It is not to be confused with the similarly named sand tiger shark, or ''Carcharias taurus.'' Description The sandbar shark is one of the biggest coastal sharks in the world, and is closely related to the dusky shark, the bignose shark, and the bull shark. Its dorsal fin is triangular and very high, and it has very long pectoral fins. Sandbar sharks usually have heavy-set bodies and rounded snouts that are shorter than the average shark's snout. Its upper teeth have broadly uneven cusps with sharp edges. Its second dorsal fin and anal fin are close to the same height. Females reach sexual maturity around the age of 13 with an average fork-length (tip of the nose to fork in the tai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sicklefin Lemon Shark
The sicklefin lemon shark (''Negaprion acutidens'') or sharptooth lemon shark is a species of requiem shark belonging to the family Carcharhinidae, widely distributed in the tropical waters of the Indo-Pacific. It is closely related to the better-known lemon shark (''N. brevirostris'') of the Americas; the two species are almost identical in appearance, both being stout-bodied sharks with broad heads, two dorsal fins of nearly equal size, and a plain yellow-tinged coloration. As its common name suggests, the sicklefin lemon shark differs from its American counterpart in having more falcate (sickle-shaped) fins. This large species grows up to long. It generally inhabits water less than deep in a variety of habitats, from mangrove estuaries to coral reefs. A slow-moving predator feeding mainly on bony fishes, the sicklefin lemon shark seldom travels long distances and many individuals can be found year-round at certain locations. Like other members of its family, this species is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Night Shark
The night shark (''Carcharhinus signatus'') is a species of requiem shark, in the family Carcharhinidae, found in the temperate and tropical waters of the Atlantic Ocean. An inhabitant of the outer continental shelf and upper continental slope, this shark most commonly occurs at depths of and conducts a diel vertical migration, spending the day in deeper water and moving into shallower waters at night. Off northeastern Brazil, large numbers congregate around seamounts of varying depths. A slender, streamlined species, the night shark typically reaches a length of . It can be identified by its long, pointed snout and large, green eyes (when alive), and is dark grayish blue or brown above and white below. Night sharks are quick, nocturnally active, schooling predators that feed mainly on small bony fishes and squid. Reproduction is viviparous as with the other members of its family; females mate during the summer and give birth to litters of usually 12–18 pups afte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blacknose Shark
The blacknose shark (''Carcharhinus acronotus'') is a species of requiem shark, belonging to the family Carcharhinidae, common in the tropical and subtropical waters of the western Atlantic Ocean. This species generally inhabits coastal seagrass, sand, or rubble habitats, with adults preferring deeper water than juveniles. A small shark typically measuring long, the blacknose has a typical streamlined "requiem shark" shape with a long, rounded snout, large eyes, and a small first dorsal fin. Its common name comes from a characteristic black blotch on the tip of its snout, though this may be indistinct in older individuals. Blacknose sharks feed primarily on small bony fishes and cephalopods, and in turn fall prey to larger sharks. Like other members of their family, they exhibit a viviparous mode of reproduction in which the developing embryos are sustained by a placental connection. The females give birth to three to six young in late spring or early summer, either annually ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whitenose Shark
The whitenose shark (''Nasolamia velox'') is a species of shark of the family Carcharhinidae. The only member of the genus ''Nasolamia'', it is found in the tropical waters of the eastern Pacific Ocean between latitudes 31° N and 18° S, between depths of 15 to 200 m. It can grow up to a length of 1.5 m. The whitenose shark is viviparous Among animals, viviparity is development of the embryo inside the body of the parent. This is opposed to oviparity which is a reproductive mode in which females lay developing eggs that complete their development and hatch externally from the ..., with 5 young in a litter, and a birth size around 53 cm. Nasolamia velox jaws.jpg, Jaws Nasolamia velox upper teeth.jpg, Upper teeth Nasolamia velox lower teeth.jpg, Lower teeth References {{DEFAULTSORT:shark, whitenose whitenose shark Viviparous fish Western Central American coastal fauna Fish of Colombia Fish of Ecuador Fish of Peru whitenose shark ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smoothtooth Blacktip Shark
The smoothtooth blacktip shark (''Carcharhinus leiodon'') is a species of requiem shark in the family Carcharhinidae. It is known only from the type specimen caught from the Gulf of Aden, off eastern Yemen, and a handful of additional specimens caught from the Persian Gulf, off Kuwait. Reaching in length, this species has a stocky greenish-colored body, a short snout, and black-tipped fins. It can be distinguished from similar species by its teeth, which are narrow, erect, and smooth-edged. Little is known of the smoothtooth blacktip shark's natural history; it likely inhabits shallow waters and feeds on small bony fishes. It is presumably viviparous like other members of its family. The International Union for Conservation of Nature last assessed this species as endangered. Although more specimens have since been discovered, the conservation status of this species remains precarious due to heavy fishing and habitat degradation within its range. Taxonomy and phylogeny The fir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
