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Red Sea Species Hazardous To Humans
Although most species in the Red Sea pose no threat to humans, there are a few notable exceptions. Biting and wounding fish Image:Tiger Shark Mayan Temple Slides at Atlantis.jpg, The tiger shark is considered to be one of the most dangerous sharks to humans. Although it is found in the Red Sea it is not usually seen near reefs during the daytime. Image:Grey reef shark2.jpg, The Grey reef shark is territorial and may be aggressive, and has been involved in non-fatal attacks on divers.Lieske, E. and Myers, R.F. (2004) ''Coral reef guide; Red Sea'' London, HarperCollins Image:Titan triggerfish.jpg, Balistoides viridescens, the Titan triggerfish, will guard its nest aggressively if eggs are present. Attacks can be severe and leave wounds requiring stitches. Image:Pseudobalistesflavimarginatus.jpg, Pseudobalistes flavimarginatus, the Yellowmargin triggerfish, is another large triggerfish and should not be disturbed if tending to eggs. Image:G.Javanicus8.jpg, Moray eels such as the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red Sea
The Red Sea ( ar, البحر الأحمر - بحر القلزم, translit=Modern: al-Baḥr al-ʾAḥmar, Medieval: Baḥr al-Qulzum; or ; Coptic: ⲫⲓⲟⲙ ⲛ̀ϩⲁϩ ''Phiom Enhah'' or ⲫⲓⲟⲙ ⲛ̀ϣⲁⲣⲓ ''Phiom ǹšari''; Tigrinya: ቀይሕ ባሕሪ ''Qeyih Bahri''; ) is a seawater inlet of the Indian Ocean, lying between Africa and Asia. Its connection to the ocean is in the south, through the Bab el Mandeb strait and the Gulf of Aden. To its north lie the Sinai Peninsula, the Gulf of Aqaba, and the Gulf of Suez (leading to the Suez Canal). It is underlain by the Red Sea Rift, which is part of the Great Rift Valley. The Red Sea has a surface area of roughly 438,000 km2 (169,100 mi2), is about 2250 km (1398 mi) long, and — at its widest point — 355 km (220.6 mi) wide. It has an average depth of 490 m (1,608 ft), and in the central ''Suakin Trough'' it reaches its maximum depth of . The Red Sea also has exten ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pterois Miles
''Pterois miles'', the devil firefish or common lionfish, is a species of ray-finned fish native to the western Indo-Pacific region. It is frequently confused with its close relative, the red lionfish (''Pterois volitans''). The scientific name is from Greek ''pteron'', meaning "wing", and Latin ''miles'', meaning "soldier". Taxonomy ''Pterois miles'' was first formally described as ''Scorpaena miles'' in 1828 by the British naturalist John Whitchurch Bennett, with the type locality given as the south coast of Sri Lanka. A molecular study of this species, the red lionfish, the luna lionfish and Russell's lionfish found that the common lionfishes in the western Indian Ocean formed a lineage, that a second lineage consisted of both the luna lionfish and Russell's lionfish, suggesting these two taxa are conspecific, while the ref firefish formed a third lineage which appeared to have genetic contributions from the other two lineages. This suggests that the red lionfish arose fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ostracion Cubicus
''Ostracion'' is a genus of the boxfish family Ostraciidae. Fish in the genus are known as box puffers. It was first described by Carl Linnaeus in 1758 and makes a brief appearance in Jules Verne's maritime sci-fi novel Twenty Thousand Leagues Under The Sea. Species The following are species in this genus: * '' Ostracion cornutus'' Linnaeus, 1758 * '' Ostracion cubicus'' Linnaeus, 1758 (Yellow boxfish) * '' Ostracion cyanurus'' Rüppell, 1828 (Bluetail trunkfish) * ''Ostracion immaculatus'' Temminck & Schlegel, 1850 (Bluespotted boxfish) * '' Ostracion meleagris'' G. Shaw, 1796 (White-spotted boxfish) * '' Ostracion nasus'' Bloch, 1785 (Shortnose boxfish) * '' Ostracion rhinorhynchos'' Bleeker, 1851 (Horn-nosed boxfish) * '' Ostracion solorensis'' Bleeker, 1853 (Reticulate boxfish) * ''Ostracion trachys'' J. E. Randall, 1975 (Roughskin trunkfish) * ''Ostracion whitleyi ''Ostracion'' is a genus of the boxfish family Ostraciidae. Fish in the genus are known as box puffer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yellow Boxfish
The yellow boxfish (''Ostracion cubicum'') is a species of boxfish found in reefs throughout the Pacific Ocean and Indian Ocean as well as the southeastern Atlantic Ocean. Recorded occasionally since 2011 in the Levantine waters of the Mediterranean Sea which it likely entered via the Suez Canal, it is a species appreciated in the aquarium trade. ''O. cubicum'' reaches a maximum length of . As the name suggests, it is box-shaped. Boxfish are also known for their armored and rigid body which in most cases would inhibit locomotion. This disadvantage is offset by the boxfish's carapace shape which is much more advantageous for its adapted style of swimming, known as ostraciiform locomotion. When juvenile, it is bright yellow in color. As it ages, the brightness fades and very old specimens have blue-grey to black coloration with faded yellow. The yellow boxfish's diet consists mainly of marine algae, but it may also feed on worms, sponges, crustaceans, molluscs, and small fish. Whe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boxfish
Ostraciidae is a family of squared, bony fish belonging to the order Tetraodontiformes, closely related to the pufferfishes and filefishes. Fish in the family are known variously as boxfishes, cofferfishes, cowfishes and trunkfishes. It contains about 23 extant species in 6 extant genera. Description Members of this family occur in a variety of different colors, and are notable for the hexagonal or "honeycomb" patterns on their skin. They swim in a rowing manner. Their hexagonal plate-like scales are fused together into a solid, triangular or box-like carapace, from which the fins, tail, eyes and mouth protrude. Because of these heavy armoured scales, Ostraciidae are limited to slow movements, but few other fish are able to eat the adults. Ostraciid boxfish of the genus ''Lactophrys'' also secrete poisons from their skin into the surrounding water, further protecting them from predation. Although the adults are in general quite square in shape, young Ostraciidae are more rounded. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tetrodotoxin
Tetrodotoxin (TTX) is a potent neurotoxin. Its name derives from Tetraodontiformes, an order that includes pufferfish, porcupinefish, ocean sunfish, and triggerfish; several of these species carry the toxin. Although tetrodotoxin was discovered in these fish and found in several other animals (e.g., in blue-ringed octopuses, rough-skinned newts, and moon snails), it is actually produced by certain infecting or symbiotic bacteria like ''Pseudoalteromonas'', ''Pseudomonas'', and ''Vibrio'' as well as other species found in animals. Tetrodotoxin is a sodium channel blocker. It inhibits the firing of action potentials in neurons by binding to the voltage-gated sodium channels in nerve cell membranes and blocking the passage of sodium ions (responsible for the rising phase of an action potential) into the neuron. This prevents the nervous system from carrying messages and thus muscles from contracting in response to nervous stimulation. Its mechanism of action, selective blocking o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neurotoxin
Neurotoxins are toxins that are destructive to nerve tissue (causing neurotoxicity). Neurotoxins are an extensive class of exogenous chemical neurological insultsSpencer 2000 that can adversely affect function in both developing and mature nervous tissue.Olney 2002 The term can also be used to classify endogenous compounds, which, when abnormally contacted, can prove neurologically toxic. Though neurotoxins are often neurologically destructive, their ability to specifically target neural components is important in the study of nervous systems. Common examples of neurotoxins include lead, ethanol (drinking alcohol), glutamate,Choi 1987 nitric oxide, botulinum toxin (e.g. Botox), tetanus toxin,Simpson 1986 and tetrodotoxin. Some substances such as nitric oxide and glutamate are in fact essential for proper function of the body and only exert neurotoxic effects at excessive concentrations. Neurotoxins inhibit neuron control over ion concentrations across the cell membrane, or com ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Masked Puffer
The masked puffer (''Arothron diadematus'') is a pufferfish in the family Tetraodontidae. Distribution Red Sea only. Description Maximum length 30 cm, olive-green/grey with a black mask over the eyes and pectoral fins, mouth has a black border.Siliotti, A. (2002) ''fishes of the red sea'' Verona, Geodia Usually solitary but schools during mating period. Some authors believe this to be a variation of the species ''Arothron nigropunctatus''. Habitat Associated with coral reefs, from surface to 20m depth. Gallery Image:Masked_Pufferfish.JPG, Masked puffer face detail Image:Arothron diademata sleeping.JPG, Masked puffer at night, resting (sleeping?) on a coral Corals are marine invertebrates within the class Anthozoa of the phylum Cnidaria. They typically form compact colonies of many identical individual polyps. Coral species include the important reef builders that inhabit tropical oceans and sec ... outcrop References External links * {{Taxonbar, from=Q17547 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pufferfish
Tetraodontidae is a family of primarily marine and estuarine fish of the order Tetraodontiformes. The family includes many familiar species variously called pufferfish, puffers, balloonfish, blowfish, blowies, bubblefish, globefish, swellfish, toadfish, toadies, toadle, honey toads, Haaris Anwar fish, sugar toads, and sea squab. They are morphologically similar to the closely related porcupinefish, which have large external spines (unlike the thinner, hidden spines of the Tetraodontidae, which are only visible when the fish have puffed up). The scientific name refers to the four large teeth, fused into an upper and lower plate, which are used for crushing the hard shells of crustaceans and mollusks, their natural prey. The majority of pufferfish species are toxic and some are among the most poisonous vertebrates in the world. In certain species, the internal organs, such as the liver, and sometimes the skin, contain tetrodotoxin, and are highly toxic to most animals when ea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taeniura Lymma
The bluespotted ribbontail ray (''Taeniura lymma'') is a species of stingray in the family Dasyatidae. Found from the intertidal zone to a depth of , this species is common throughout the tropical Indian and western Pacific Oceans in nearshore, coral reef-associated habitats. It is a fairly small ray, not exceeding in width, with a mostly smooth, oval pectoral fin disc, large protruding eyes, and a relatively short and thick tail with a deep fin fold underneath. It can be easily identified by its striking color pattern of many electric blue spots on a yellowish background, with a pair of blue stripes on the tail. At night, small groups of bluespotted ribbontail rays follow the rising tide onto sandy flats to root for small benthic invertebrates and bony fishes in the sediment. When the tide recedes, the rays separate and withdraw to shelters on the reef. Reproduction is aplacental viviparous, with females giving birth to litters of up to seven young. This ray is capable of inj ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stingray
Stingrays are a group of sea rays, which are cartilaginous fish related to sharks. They are classified in the suborder Myliobatoidei of the order Myliobatiformes and consist of eight families: Hexatrygonidae (sixgill stingray), Plesiobatidae (deepwater stingray), Urolophidae (stingarees), Urotrygonidae (round rays), Dasyatidae (whiptail stingrays), Potamotrygonidae (river stingrays), Gymnuridae (butterfly rays) and Myliobatidae (eagle rays). There are about 220 known stingray species organized into 29 genera. Stingrays are common in coastal tropical and subtropical marine waters throughout the world. Some species, such as the thorntail stingray (''Dasyatis thetidis''), are found in warmer temperate oceans and others, such as the deepwater stingray (''Plesiobatis daviesi''), are found in the deep ocean. The river stingrays and a number of whiptail stingrays (such as the Niger stingray (''Fontitrygon garouaensis'')) are restricted to fresh water. Most myliobatoids are demersa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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