Aipysurus fuscus | |
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Scientific classification | |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Reptilia |
Order: | Squamata |
Suborder: | Serpentes |
Family: | Elapidae |
Genus: | Aipysurus |
Species: | A. fuscus |
Binomial name | |
Aipysurus fuscus (Tschudi, 1837) | |
Synonyms [2] | |
Stephanohydra fuscaTschudi, 1837 |
Aipysurus fuscus, commonly known as the dusky sea snake or Timor Reef snake, is a species of sea snake in the family Elapidae. [2] It is found in the Timor Sea between Australia, Indonesia and East Timor and has been classified as endangered. [1]
A. fuscus tends to be dark, colored purplish brown, brown, or blackish brown above. It occasionally has paler bands on the lower flanks. The center of each lateral scale is occasionally darker, giving the appearance of longitudinal striations. [3] It is a member of the subfamily Hydrophiinae, or marine elapid snakes. [2] The species name of A. fuscus derives from the Latin term fuscus, which translates to "dusky" or "dark," in reference to the snake's coloration. [2] The species is thought to not usually grow beyond 78 centimeters (31 in) in length, although substantially larger specimens have been found. It is thought to reach reproductive maturity after three or four years, have an average generation time of five years, and an average lifespan of ten. [1]
The snake is venomous. It is also viviparous, or live-bearing. [2] A 2006 study suggested that it was most closely related to Aipysurus laevis , with which it has been documented as hybridizing. [2] [4] It has been recorded as feeding on fish eggs and eels, as well as on wrasses and gobies. The species has a shallow depth range, generally from the surface down to 12 meters (39 ft). [1]
A. fuscus primarily inhabits reefs in shallow marine habitats. It has occasionally been recorded at depths of up to 30 metres (98 ft). [1] The only reliable reports of this species in the wild are from the Timor Sea, from the reefs of Ashmore, Cartier and Hibernia of the Ashmore and Cartier Islands, and the reefs of Scott and Seringapatam. Not more than five subpopulations are thought to exist, and the overall population is severely fragmented. The type specimen was reported as being collected off the coast of Sulawesi, but this location has been called into question. This, combined with the observation that the species only uses a small depth range, has led the International Union for Conservation of Nature to conclude that the snake has a range of less than 500 square kilometers (190 sq mi). [1]
Catch rates for the species declined drastically between 1998 and 2007, in which year no specimens were found. The estimated decline in the population of A. fuscus is at least 70%. [1] The specific threats to this snake are poorly understood, but they are suspected to have been affected by coral bleaching and general decreases in the health of their ecosystems. These data have led to its being classified as endangered. [1] Ashmore reef, one of five inhabited by A. fuscus, has been a nature reserve since 1983. [1]
Agkistrodon piscivorus is a species of pit viper in the subfamily Crotalinae of the family Viperidae. It is the world's only semiaquatic viper, and is native to the southeastern United States. As an adult, it is large and capable of delivering a painful and potentially fatal bite. When threatened, it may respond by coiling its body and displaying its fangs. Individuals may bite when feeling threatened or being handled in any way. It occurs in or near water, particularly in slow-moving and shallow lakes, streams, and marshes. It is a capable swimmer and, like several species of snakes, is known to occasionally enter bays and estuaries and swim between barrier islands and the mainland.
Aipysurus eydouxii, commonly known as the beaded sea snake, marbled seasnake, or spine-tailed seasnake, is a species of sea snake in the family Elapidae. This species of snake is unusual amongst sea snakes in that it feeds exclusively on fish eggs. As part of this unusual diet, this species has lost its fangs, and the venom glands are almost entirely atrophied.
The red morwong, also known as the sea carp, is a species of marine ray finned fish traditionally regarded as belonging to the family Cheilodactylidae, the members of which are commonly known as morwongs. It is found off southeast Australia and the North Island of New Zealand from shallow depths to at least 55 m, on rocky reef and coastal areas. Its length is between 30 and 60 cm.
Sea snakes, or coral reef snakes, are a subfamily of elapid snakes, the Hydrophiinae, that inhabit marine environments for most or all of their lives. Most are venomous, except the genus Emydocephalus, which feeds almost exclusively on fish eggs. Sea snakes are extensively adapted to a fully aquatic life and are unable to move on land, except for the genus Laticauda, which has limited land movement. They are found in warm coastal waters from the Indian Ocean to the Pacific and are closely related to venomous terrestrial snakes in Australia.
The brown shyshark or plain happy is a species of catshark, part of the family Scyliorhinidae. It is endemic to the shallow, coastal waters of South Africa from west of Cape Agulhas to KwaZulu-Natal. This benthic species is usually found over sandy or rocky bottoms. Measuring up to 73 cm (29 in) long, the brown shyshark is stoutly built, with a broad, flattened head and rounded snout. Unlike other shysharks, the brown shyshark has a plain brown color, though some individuals have faint "saddle" markings or light or dark spots. When threatened, this shark curls into a circle with its tail over its eyes, which is the origin of the name "shyshark". It feeds on bony fishes and lobsters, and is oviparous with females laying pairs of egg capsules. The International Union for Conservation of Nature (IUCN) has assessed this harmless species as Vulnerable. It is of no commercial or recreational interest, but its limited distribution makes its entire population vulnerable to increases in fishing pressure or habitat degradation.
Aipysurus laevis is a species of venomous sea snake found in the Indo-Pacific. Its common names include golden sea snake, olive sea snake, and olive-brown sea snake.
Desmognathus fuscus is a species of amphibian in the family Plethodontidae. The species is commonly called the dusky salamander or northern dusky salamander to distinguish it from populations in the southern United States which form a separate species, the southern dusky salamander. The northern dusky salamander is the most widespread representative of its genus in Canada. It can be found in eastern North America from extreme eastern Canada in New Brunswick south into the panhandle of Florida and west to Louisiana. The size of the species' total population is unknown, but is assumed to easily exceed 100,000. The species' habitat differs somewhat geographically; dusky salamanders in the northern part of the range prefer rocky woodland streams, seepages, and springs, while those in the south favor floodplains, sloughs, and muddy places along upland streams. They are most common where water is running or trickling. They hide under various objects, such as leaves or rocks, either in or near water. Alternatively, they may enter burrows for protection. The dusky salamander lays its eggs close to water under moss or rocks, in logs, or in stream-bank cavities. The larval stage which follows is normally aquatic.
The dusky tapaculo is a species of bird in the family Rhinocryptidae. It is endemic to Chile.
Hyporthodus nigritus, the Warsaw grouper is a species of marine ray-finned fish, a grouper from the subfamily Epinephelinae which is part of the family Serranidae, which also includes the anthias and sea basses. It is found in the Western Atlantic from Massachusetts to the Gulf of Mexico, Cuba, Trinidad, and south to Brazil. Its natural habitats are open seas, shallow seas, subtidal aquatic beds, and coral reefs. It is threatened by habitat loss.
Hippocampus kuda, also known as the common seahorse, estuary seahorse, yellow seahorse or spotted seahorse is a seahorse of the family Syngnathidae native to the Indo-Pacific. The common name sea pony has been used for this species under its synonym Hippocampus fuscus.
The longnose trevally, also known as the tea-leaf trevally, club-nosed trevally, grunting trevally or dusky trevally, is a species of inshore marine fish in the jack family, Carangidae. The species is distributed throughout the tropical and subtropical waters of the Indian and west Pacific Oceans from South Africa to New Zealand and Japan, inhabiting coastal waters, especially reefs, to a depth of 90 m. The longnose trevally is distinguished from similar species by a combination of a scaleless breast and the number of gill rakers and fin rays. It is a moderately large fish, growing to a maximum known length of 72 cm and 4.35 kg. The longnose trevally is a predatory fish, consuming small fish, crustaceans and molluscs. The species is of minor commercial importance throughout its range, and is considered to be a good table fish.
The coastal trevally, also known as the onion trevally, Japanese trevally or bluefin kingfish, is a species of inshore marine fish in the jack family Carangidae. The species is distributed throughout the tropical and subtropical waters of the Indian and west Pacific Oceans, from South Africa in the west to Japan and New Caledonia in the east, reaching as far south as Australia. The species is found on deep coastal reefs, both in schools and as solitary individuals, where they prey on small midwater organisms including crustaceans, small fish and cephalopods. The species is taken as bycatch in a number of fisheries throughout its range by a number of fishing methods and is of little commercial value, but is considered to be a good table fish. A mistype in the original volume in which Eduard Rüppell named the species led to the combination Carangoides caeruleopinnatus, which has incorrectly spread through the literature.
The barcheek trevally, also known as the barcheek kingfish, shortridge trevally or oblique-banded trevally, is a species of moderately large marine fish of the jack family Carangidae. The barcheek trevally is distributed throughout the tropical waters of the Indo-west Pacific region, ranging from South Africa in the west to Japan, Australia and a number of small central Pacific islands in the east. The species inhabits inshore and offshore waters, found along the slopes of lagoons and out to deeper reefs on the continental shelf, where it preys on small fish and benthic crustaceans. It is a moderately large fish, growing to a maximum recorded length of 50 cm, and can be distinguished from similar species by its somewhat protruding lower jaw and the dark banding on its operculum. It is of minor importance to fisheries throughout its range, taken by trawling, hook and line methods and various inshore fish netting methods.
The Australian blenny is a small marine blennioid fish of the genus Ecsenius. They are small and reddish brown with a white ventral side. Australian blennies inhabit the shallow marine waters of the tropics. They are often found along the Great Barrier Reef and Coral Sea of Australia.
Aipysurus duboisii, also known as the Dubois' sea snake or reef shallows sea snake, is a species of venomous sea snake. Its geographic range includes Papua New Guinea, New Caledonia and the northern, eastern and western coastal areas of Australia, that is the Coral Sea, Arafura Sea, Timor Sea and Indian Ocean. They live at depths up to 80 meters in coral reef flats, sandy and silty sediments which contain seaweed, invertebrates and corals or sponges that can serve as shelter. These snakes feed on moray eels and various fish that live on the seafloor, up to 110 cm in size. They are viviparous, giving birth to live young rather than laying eggs. They have medium aggressiveness, i.e., will bite if provoked, but not spontaneously. The fangs are 1.8 mm long, which are relatively short for a snake, and the venom yield is 0.43 mg. Aipysurus duboisii is a crepuscular species, meaning that they are most active at dawn and dusk.
Stegastes fuscus, the dusky damselfish, is a species of bony fish in the family Pomacentridae found near the seabed in shallow waters on the western fringes of the Atlantic Ocean.
Emydocephalus annulatus, commonly known as the turtleheaded sea snake or egg-eating sea snake, is a species of sea snake that can be found in waters of Oceania near Australia and some Pacific Islands such as the Philippines and the Loyalty Islands of New Caledonia. The geographic range is sporadic, for example, with populations distributed near the eastern and western coasts of Australia in the Great Barrier Reef and the Timor Sea reefs, respectively. They do not, however, occur in the Gulf of Carpentaria along the north coast.
Aipysurus foliosquama, also known as the leaf-scaled sea snake, is a critically endangered species of venomous sea snake in the family Elapidae. It was formerly endemic to the Ashmore and Cartier Islands of Australia, having thought to have become extinct there. In 2015, the snake was discovered in seagrass beds of Shark Bay off Western Australia.
Aipysurus apraefrontalis, commonly known as the short-nosed sea snake or Sahul reef snake, is a critically endangered species of venomous sea snake in the family Elapidae, which occurs on reefs off the northern coast of Western Australia. English herpetologist Malcolm Arthur Smith described the species in 1926 from a specimen collected on the Ashmore Reef.
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