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Topic: Isistius brasiliensis


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  ELASMO.COM Fossil Genera: Isistius - Cookiecutter Sharks
Isistius brasiliensis (QUOY and GAIMARD, 1824), Cookiecutter shark
Fossil teeth are generally ascribed to two extinct species; Isistius trituratus (WINKLER 1874) from the Palaeocene and Eocene of Europe and North Africa and I.
A predatory use of counterillumination by the squaloid shark, Isistius brasiliensis.
www.elasmo.com /genera/cenozoic/sharks/isistius.html   (647 words)

  
 Florida Museum of Natural History Ichthyology Department: Cookiecutter Shark   (Site not responding. Last check: 2007-11-07)
This name was later changed to Scymnus brasiliensis, followed by the currently valid Isistius brasiliensis (Quoy & Gaimard, 1824).
The genus name Isistius is derived from Isis, the Egyptian goddess of light; the species name brasiliensis refers to its presence in the waters off the coast of Brazil.
Isistius plutodus is a similar species to the cookiecutter shark, however I.
www.flmnh.ufl.edu /fish/Gallery/Descript/CookiecutterShark/CookiecutterShark.html   (1206 words)

  
 Shark Glossary: C - EnchantedLearning.com   (Site not responding. Last check: 2007-11-07)
The cigar shark (Isistius brasiliensis) is a small, large-eyed predator that lives in deep tropical ocean waters worldwide.
The cigar shark is also known as the cookiecutter shark (due to its color and shape), the luminous shark (because it emits a green glow from its belly), and the Brazilian shark.
The cookiecutter shark (Isistius brasiliensis) is a small, large-eyed predator that lives in deep tropical ocean waters worldwide.
www.nibbleuniversity.com /websites/enchantedlearning/enchanted/subjects/sharks/glossary/indexc.shtml.htm   (2726 words)

  
 Cookie-cutter Shark, Isistius brasiliensis - bite on submarine sonar dome
Cookie-cutter Shark, Isistius brasiliensis - bite on submarine sonar dome
The cookie-shaped divot is probably the result of a bite from a Cookie-cutter Shark, Isistius brasiliensis.
As the shark bit through the rubber dome it left tooth marks which are clearly visible.
www.austmus.gov.au /fishes/fishfacts/fish/ibrassub.htm   (94 words)

  
 Cookiecutter Shark
The Cookiecutter shark (Isistius brasiliensis) is a small, deep-water shark named for the cookie-shaped wounds it leaves on larger fish and marine mammals.
It is also known as Cookie-cutter shark or the Cigar shark, due to the cigar-like shape of its body.
Cookie cutter sharks live in the depths of all the oceans near the equator where the water is warm.
sharks.sharkyc.com /Cookiecutter_Shark.html   (277 words)

  
 Cookie-Cutter Shark - educational resources
or Isistius brasiliensis is listed on the IUCN Red list (1996) as Least Concern.
ADW: Chondrichthyes: Pictures:...bluntnose sixgill shark or sixgill shark Hexanchus griseus, spotted ratfish Hydrolagus colliei, cookie-cutter shark or cookiecutter shark Isistius brasiliensis.
cookie-cutter shark or cookiecutter shark Isistius brasiliensis, porbeagle Lamna nasus, megamouth shark Megachasma pelagios.
animals.mongabay.com /iucn/C/Cookie-Cutter_Shark.html   (217 words)

  
 Do Giant Cookiecutter Shark Exist?
But it is an interesting story, and highlights the fascinating cookiecutter sharks (Isistius sp.) and a related species, the sleeper sharks (Somniosus sp.).
There are two known species of cookiecutter sharks: the cookiecutter shark (Isistius brasiliensis) and the largetooth cookiecutter shark (Isistius plutodus).
The two Isistius species are epi- to mesopelagic creatures; it is thought that during the day they remain in the mesopelagic zone (from 200 m to 1000 m below sea level) and then at night they venture nearer to the surface.
www.ncf.carleton.ca /~bz050/HomePage.giantcookiecutter.html   (729 words)

  
 Karger Publishers
Retinal wholemounts are used to examine the topographic distribution of retinal cells within the ganglion cell layer in a range of elasmobranchs from different depths.
The retina is examined for regional specializations for acute vision in six species of selachians, Galeocerdo cuvieri, Hemiscyllium ocellatum, Scyliorhinus canicula, Galeus melastomus, Etmopterus spinax, Isistius brasiliensis, one species of batoid, Raja bigelowi and one species of chimaera, Hydrolagus mirabilis.
brasiliensis possesses a concentric arrangement of retinal iso-density contours in temporal retina or an area centralis, thereby increasing spatial resolving power in a more specialized part of the visual field, an adaptation for its unusual feeding behavior.
content.karger.com /ProdukteDB/produkte.asp?Aktion=ShowFulltext&ProduktNr=223831&Ausgabe=224672&ArtikelNr=6652   (387 words)

  
 Cookie Cutter Shark   (Site not responding. Last check: 2007-11-07)
Cookie-Cutter Shark - Isistius brasiliensis - profile of the shark named after the neat cookie-shaped wounds that...
Large-tooth Cookie-cutter Shark, Isistius plutodus - The Large-tooth Cookie-cutter Shark has a cigar-shaped body, a short conical snout and two low, spineless dorsal fins.
Cookie-cutter Shark, Isistius brasiliensis - The Cookie-cutter Shark is named after the neat cookie-shaped wounds that it leaves on the bodies of larger fishes and marine mammals.
kitchen-devices.com /cookie-cutter-shark.html   (997 words)

  
 Black dogfish
In West Greenland waters cephalopods, pelagic crustaceans, and medusae have been found in their stomachs, and females have been taken with embryos in February.
Perhaps they are luminescent, for their skins bear minute deeply pigmented dots, suggesting the light organs of the brilliantly luminescent shark Isistius brasiliensis.
Northern North Atlantic; Faroe Bank, Faroe-Shetland Channel and Iceland in the east; West Greenland; Davis Strait; and outer slopes of the fishing banks in the west, southward to Georges Bank; chiefly deeper than 150 fathoms.
octopus.gma.org /fogm/Centroscyllium_fabricii.htm   (303 words)

  
 Rhinoptera brasiliensis
The exception to this is the ticon cownose ray (Rhinoptera brasiliensis), which so closely resembles R. bonasus in both appearance and bodily proportions, that...
Rhinoptera: Rhinoptera brasiliensis Mìller, 1836 Raja brasiliensis Mìller and Henle, 1841; (valid as) Rhinoptera brasiliensis Castro-Aguirre and Espinosa P©rez, 1996...
Identificação de Rhinoptera bonasus (Mitchill, 1815) e Rhinoptera brasiliensis Müller and Henle, 1841 (Chondrichthyes, Myliobatiformes, Rhinopteridae) pela...
specieslist.com /fish_species/QR/Rhinoptera_brasiliensis.shtml   (359 words)

  
 Cookie-cutter Shark, Isistius brasiliensis
The entire ventral surface, with the exception of the dark collar, is covered in a dense network of tiny photophores, which in life produce an even greenish glow.
A second species of Isistius is the appropriately named Large-tooth Cookie-cutter Shark I.
Widder, E.A. A predatory use of counterillumination by the squaloid shark, Isistius brasiliensis.
www.amonline.net.au /fishes/fishfacts/fish/ibrasil.htm   (452 words)

  
 CDNN Eco News :: Rare Megamouth shark found in South Africa
Its feeding habits and habitat suggest that it may be a rare catch in the future.
Preyed on by the semiparasitic cookiecutter shark, Isistius brasiliensis.
A large, mainly deepwater filter-feeding species that is known from only a few bycaught or stranded specimens and is apparently very rare throughout its range.
www.cdnn.info /eco/e020421/e020421.html   (290 words)

  
 [No title]
All dogfish have large spiracles, two dorsal fins, often with a sharp defensive spine, and lack an anal fin. Most species are deep-water dwellers, inhabiting the 100—2000 m depth range, but some, like the White-Spotted Spurdog that lives on the southern coast, can be found in shallow bays.
It would be unusual for any diver or snorkeler to see a dogfish but anglers find them regularly and some species are an important component of the commercial catch. The 50 cm long Cookie Cutter Shark (Isistius brasiliensis) is a notorious hit-and-run merchant.
During the night it migrates from the depths to the surface and latches itself onto any large animal, such as a tuna, dolphin or whale.
www.psja.k12.tx.us /techcamp04/OceanLife/christopher/Report.doc   (442 words)

  
 Fish and Cetacean Mutilation by Cookiecutter Shark - Unexplained Mysteries Discussion Forums
Cookiecutter sharks (Isistius braziliensis) are primarily invertebrate feeders, but are known to attack larger fish and whales, leaving behind holes as they gouge out chunks of flesh.
Fish and cetacean mutilation by cookiecutter shark Isistius Braziliensis (Squaliformes: Squalidae) in Sao Paulo coast, southeastern Brazil.
The cookie-shaped divot is probably the result of a bite from a Cookie-cutter Shark Isistius brasiliensis (Quoy and Gaimard, 1824).
www.unexplained-mysteries.com /forum/index.php?showtopic=47233   (561 words)

  
 Wildlifeonline - Natural History of the Megamouth Shark
Indeed, Yamaguchi and Nakaya concluded that this female Megamouth had been bitten by a small Cookiecutter Shark (Isistius brasiliensis).
Isistius brasiliensis is one of three similar species placed in the Dalatiidae family (Sleeper sharks) and is a smallish shark – growing to a maximum of about 56cm (nearly 2ft) – that spends much of its days in deep waters (below 1000m / 3289ft), migrating up to the surface at night.
Morphological study of this little shark found it to possess specialized suctorial lips and a strongly modified pharynx, allowing it to attach to its victim (much like a plunger), sink its impressive batch of razor sharp teeth in and rotate around its axis.
www.wildlifeonline.me.uk /megamouth.html   (2955 words)

  
 NUPEC - Núcleo de Pesquisa e Estudo em Chondrichthyes - Sobre Ataque de Tubarão Charuto, Isistius brasiliensis, ...
GASPARINI, J.L. A stranded melon-headed whale, Peponocephala electra, in southeastern Brazil, with comments on wounds from the cookiecutter shark, Isistius brasiliensis.
GONZALEZ, M.M.B & C. Diferentiation of the Mutilation of Isistius brasiliensis (Quoy & Gaimard, 1824) and Squaliolus laticaudus Smith & Radcliffe, 1912 (Chondrichthyes, Squalidae) Through the Morphologic analysis of the mouth.
STRASBURG, D.W. The diet and dentition of Isistiu brasiliensis, with rmarks on tooth replacement in other sharks.
www.nupec.com.br /modules.php?name=News&file=article&sid=38   (350 words)

  
 Cookiecutter or cigar shark - Isistius brasiliensis
...cookie-cutter shark or cookiecutter shark Isistius brasiliensis, greenland shark
Sobre la presencia de Isistius brasiliensis (Qouy y Gaimard)
Isistius brasiliensis (Quoy and Gaimard, 1824) Taxonomic Serial No.: 160683.
sharks.wildmadagascar.org /species/links/Isistius_brasiliensis.html   (214 words)

  
 Do Giant Cookiecutter Shark Exist?
There are two known species of cookiecutter sharks: the cookiecutter shark (Isistius brasiliensis) and the largetooth cookiecutter shark (Isistius plutodus).
The two Isistius species are epi- to mesopelagic creatures; it is thought that during the day they remain in the mesopelagic zone (from 200 m to 1000 m below sea level) and then at night they venture nearer to the surface.
This behaviour is known as diel (influenced by day-night changes) vertical migration, and many other mesopelagic creatures, from fishes to shrimps, perform this behaviour.
web.ncf.ca /bz050/HomePage.giantcookiecutter.html   (729 words)

  
 Shark - MSN Encarta
The megamouth shark makes up its own family, Megachasmidae, and is classified as Megachasma pelagios.
The cookie-cutter shark is a member of the luminous shark family, Dalatiidae, and is classified as Isistius brasiliensis.
The horn shark belongs to the horn shark family, Heterondontidae, and is classified as Heterodontus francisci.
encarta.msn.com /encyclopedia_761552860_2/Shark.html   (2479 words)

  
 Squaliformes: Dogfish Sharks
All squaloids are predators and opportunistic scavengers, but none has achieved the notoriety of the Cookie-cutter Shark (Isistius brasiliensis).
The most brightly bioluminescent of all sharks, the Cookie-cutter acts like a pint-sized vampire: seducing its unsuspecting prey with its curious greenish glow, latching onto its prey with specialized suctorial lips and large, mobile basihyal ('tongue'), then using its bandsaw-like lower teeth to scoop out a conical plug of flesh.
The diminutive Cookie-cutter Shark (Isistius brasiliensis) grows to a length of about 1.5 feet (50 centimetres) and is brilliantly bioluminescent.
www.elasmo-research.org /education/shark_profiles/squaliformes.htm   (1725 words)

  
 Shark Species
This glowing may draw animals close so the shark can attack.
The scientific name, Isistius, is from the Egyptian goddess of light Isis.
The sharks name comes from the bite marks it leaves on its prey.
savethesharks.tripod.com /sharks/id1.html   (3671 words)

  
 Cookie cutter shark   (Site not responding. Last check: 2007-11-07)
10-inch long shark, known as a "Cookie-Cutter Shark" (Isistius brasiliensis).
The 50 cm long Cookie Cutter Shark (Isistius brasiliensis) is a notorious hit-and-run merchant.
During the night it migrates from the depths to the surface...
www.bigcreditreport.com /cookie-cutter-shark.html   (1031 words)

  
 Isistius brasiliensis on Fish Mapper | Practical Fishkeeping magazine
home » tools » fish mapper » isistius brasiliensis distribution map
Examine the distribution of Isistius brasiliensis on a satellite image produced from data held by FishBase from museum collections then click the pins for information on the accessions data, or click here to see one of over 16473 recently mapped fish.
Some of these may be synonyms of Isistius brasiliensis
www.practicalfishkeeping.co.uk /pfk/pages/fish_mapper.php?user_genus=Isistius&user_species=brasiliensis   (198 words)

  
 Cookiecutter Shark, Isistius brasiliensis at MarineBio.org   (Site not responding. Last check: 2007-11-07)
The cookiecutter shark, Isistius brasiliensis (Quoy and Gaimard, 1824), aka cookie-cutter shark or cigar shark (due to the cigar-like shape of its body), is a small, deep-water shark named for the cookie-shaped wounds it leaves on larger fish and marine mammals.
There is a second species of cookiecutter shark, Isistius plutodus, which is commonly known as the large-tooth cookiecutter shark.
Isistius brasiliensis: Animal Diversity Web, University of Michigan Museum of Zoology
marinebio.org /species.asp?id=491   (993 words)

  
 Fish Species in the Genus Isistius | Fish Database | Practical Fishkeeping
To search for more information on these fish, either enter their scientific name, or select the family they belong to, then select the genus.
According to the Integrated Taxonomic Information Service there are currently 2 species in the genus Isistius.
Enter a keyword to search the site, or use the advanced search to search by section.
www.practicalfishkeeping.co.uk /pfk/pages/browser.php?utsn=160681   (118 words)

  
 Cookie-cutter Shark, Isistius brasiliensis - feeding scars on Pygmy Sperm Whale
Cookie-cutter Shark, Isistius brasiliensis - feeding scars on Pygmy Sperm Whale
Scarring on the body of a Pygmy Sperm Whale presumably resulting from Cookie-cutter Shark bites.
The cookie-shaped wounds presumably resulted from the bites of a Cookie-cutter Shark, Isistius brasiliensis.
www.austmus.gov.au /fishes/fishfacts/fish/ibraspyg.htm   (123 words)

  
 Living Light - National Zoo| FONZ
As far as the eye reached, the crest of every wave was bright, and the sky above the horizon, from the reflected glare of these livid flames, was not so utterly obscure as over the vault of the heavens," he wrote in The Voyage of the Beagle.
The small cookiecutter shark (Isistius brasiliensis), which feeds on big, speedy tunas and swordfish by biting off chunks of their flesh, capitalizes on its camouflaged belly in an unusual way.
The shark's underside glows with densely packed photophores to camouflage its silhouette, but does not have any photophores on a small band at its neck.
nationalzoo.si.edu /Publications/ZooGoer/2006/1/bioluminescence.cfm   (2370 words)

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