elasmobranch

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elasmobranch

elasmobranch , cartilaginous fish, member of the subclass Elasmobranchii of the vertebrate class Chondrichthyes (see Chordata ). This group includes sharks , skates, and rays .

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"elasmobranch." The Columbia Encyclopedia, Sixth Edition. 2008. Encyclopedia.com. 9 Feb. 2010 <http://www.encyclopedia.com>.

"elasmobranch." The Columbia Encyclopedia, Sixth Edition. 2008. Encyclopedia.com. (February 9, 2010). http://www.encyclopedia.com/doc/1E1-elasmobr.html

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Elasmobranchii

A Dictionary of Zoology | 1999 | | © A Dictionary of Zoology 1999, originally published by Oxford University Press 1999. (Hide copyright information) Copyright

Elasmobranchii (class Chondrichthyes) A subclass of shark-like fish that have five–seven gill slits, fairly rigid fins, placoid scales, a spiracular opening behind the jaws, numerous teeth, and claspers on the ventral fins of the male. Modern elasmobranchs have a cartilaginous skeleton. Apart from modern sharks and rays, the subclass also includes many fossil species.

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MICHAEL ALLABY. "Elasmobranchii." A Dictionary of Zoology. 1999. Encyclopedia.com. 9 Feb. 2010 <http://www.encyclopedia.com>.

MICHAEL ALLABY. "Elasmobranchii." A Dictionary of Zoology. 1999. Encyclopedia.com. (February 9, 2010). http://www.encyclopedia.com/doc/1O8-Elasmobranchii.html

MICHAEL ALLABY. "Elasmobranchii." A Dictionary of Zoology. 1999. Retrieved February 09, 2010 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O8-Elasmobranchii.html

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Elasmobranchii

A Dictionary of Earth Sciences | 1999 | | © A Dictionary of Earth Sciences 1999, originally published by Oxford University Press 1999. (Hide copyright information) Copyright

Elasmobranchii Subclass of shark-like fish. They have 5–7 gill slits, fairly rigid fins, placoid scales, a spiracular opening behind the jaws, numerous teeth, and claspers on the ventral fins of the male. Elasmobranchs have a cartilaginous skeleton and their fossil record consists mainly of teeth and fin rays. Well-known fossil genera include Cladoselache (Devonian), and Ctenacanthus (Upper Devonian to Lower Permian). See CARTILAGE; and CARTILAGINOUS FISH.

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AILSA ALLABY and MICHAEL ALLABY. "Elasmobranchii." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 9 Feb. 2010 <http://www.encyclopedia.com>.

AILSA ALLABY and MICHAEL ALLABY. "Elasmobranchii." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (February 9, 2010). http://www.encyclopedia.com/doc/1O13-Elasmobranchii.html

AILSA ALLABY and MICHAEL ALLABY. "Elasmobranchii." A Dictionary of Earth Sciences. 1999. Retrieved February 09, 2010 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-Elasmobranchii.html

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Free newspaper and magazine articles

	Elasmobranch landings for the Portuguese commercial fishery from 1986 to 2001. Magazine article from: Marine Fisheries Review; 1/1/2003
	Activities and catch composition of artisanal elasmobranch fishing sites on the Eastern Coast of Baja California Sur, Mexico.(Report) Magazine article from: Bulletin (Southern California Academy of Sciences); 12/1/2009
	Long-term trends in catch composition from elasmobranch derbies in Elkhorn Slough, California.(Elkhorn Slough National Estuarine Research Reserve) Magazine article from: Marine Fisheries Review; 1/1/2007

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Related articles from newspapers, magazines, and more

	Elasmobranch landings for the Portuguese commercial fishery from 1986 to 2001. Magazine article from: Marine Fisheries Review; 1/1/2003; ; 700+ words ; ...Musick, 1995). The delicate nature of elasmobranch populations emphasizes the need for...taxonomic group. In 1983, the Portuguese elasmobranch fishery expanded rapidly due to an...During the same period, the demand for elasmobranch flesh steadily increased, and at present...
	Feeding ecology of elasmobranch fishes in coastal waters of the Colombian Eastern Tropical Pacific.(Research article)(Report) Magazine article from: BMC Ecology; 9/18/2007; ; 700+ words ; ...2]; Alan Giraldo [2] Background Elasmobranch fishes are among the top predators...Despite the ecological importance of elasmobranch fishes for the marine ecosystem, resource...amount of data on the diet of different elasmobranch species has been reported to date...
	Activities and catch composition of artisanal elasmobranch fishing sites on the Eastern Coast of Baja California Sur, Mexico.(Report) Magazine article from: Bulletin (Southern California Academy of Sciences); 12/1/2009; ; 700+ words ; ...regarding the status and sustainability of elasmobranch populations in Mexican waters has prompted...Improved management of Mexican elasmobranch fisheries has been hampered, in part...most important regions in terms of elasmobranch and overall fisheries production...
	An elasmobranch assemblage from the terrestrial-marine transitional Lethbridge Coal Zone (Dinosaur Park Formation: Upper Campanian), Alberta, Canada Magazine article from: Journal of Paleontology; 5/1/1999; ; 700+ words ; ...reflects an increasing marine influence. Elasmobranch (sharks and rays) remains are the...extensive taphonomic reworking. The elasmobranch fauna collected from the Dinosaur Park...Formation. Although the presence of a rich elasmobranch fauna is described for the first time...
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	Smalltooth sawfish: the USA's first endangered elasmobranch? (Marine Matters). Newspaper article from: Endangered Species Update; 5/1/2002; ; 700+ words ; ...2002, the smalltooth sawfish would become the first elasmobranch on the US Endangered Species List. Introduction...Pristiformes: Pristidae) are a group of seven species of elasmobranch that have a distinctive elongate tooth rostrum...
	Central pathways mediating oculomotor reflexes in an elasmobranch, Scyliorhinus canicula. Magazine article from: The Biological Bulletin; 10/1/2002; ; 700+ words ; ...Anatomical studies of extraocular motoneurons in the adults of elasmobranch species have uniformly demonstrated that medial rectus...exclusively from Rhs 5 in frogs (16) and mammals (1). The elasmobranch developmental pattern is different yet, as Abd motoneurons...
	First Observations of Feeding on Thresher (Alopias vulpinus) and Hammerhead (Sphyrna zygaena) Sharks by Killer Whales (Orcinus orca) Specialising on Elasmobranch Prey Magazine article from: Aquatic Mammals; 1/1/2005; ; 700+ words ; ...this population. Key Words: Killer whale, Orcinus orca, elasmobranch, thresher shark, Alopias vulpinus, smooth-hammerhead...1). I describe killer whale predation on two additional elasmobranch prey Alopias vulpinus) and smooth-hammerhead (S. zygaena...