- 関
- Raja
WordNet
- move along on skates; "The Dutch often skate along the canals in winter"
- large edible rays having a long snout and thick tail with pectoral fins continuous with the head; swim by undulating the edges of the pectoral fins
- sports equipment that is worn on the feet to enable the wearer to glide along and to be propelled by the alternate actions of the legs
- type genus of the family Rajidae (同)genus Raja
- someone who skates
- an ice-skater who races competitively; usually around an oval course (同)speed skater
- cold-water bottom fish with spines on the back; to 40 inches (同)Raja radiata
- the sport of skating on a skateboard
- dance on skates
- the sport of gliding on skates
PrepTutorEJDIC
- =ice skate / =roller skate / 『スケートをする』,氷滑りをする
- ガンギエイ
- スケートをする人
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2013/03/08 16:00:55」(JST)
[Wiki en表示]
This article is about the fish. For other uses, see Skate (disambiguation).
Skates
Temporal range: Late Cretaceous–Recent
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New Zealand smooth Skate
Dipturus innominatus
Drawing by Dr Tony Ayling |
Scientific classification |
Kingdom: |
Animalia |
Phylum: |
Chordata |
Class: |
Chondrichthyes |
Subclass: |
Elasmobranchii |
Superorder: |
Batoidea |
Order: |
Rajiformes
Berg, 1940 |
Family: |
Rajidae
Bonaparte, 1831 |
Skates are cartilaginous fish belonging to the family Rajidae in the superorder Batoidea of rays. More than 200 species have been described, in 27 genera. The two subfamilies are Rajinae (hardnose skates) and Arhynchobatinae (softnose skates).
Contents
- 1 Genera
- 2 Conservation
- 3 Gallery
- 4 See also
- 5 References
- 6 External links
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Genera
- Amblyraja
- Arhynchobatis
- Atlantoraja
- Bathyraja
- Breviraja
- Brochiraja
- Cruriraja
- Dactylobatus
- Dentiraja
- Dipturus
- Fenestraja
- Gurgesiella
- Hongeo
- Insentiraja
- Irolita
- Leucoraja
- Malacoraja
- Neoraja
- Notoraja
- Okamejei
- Pavoraja
- Psammobatis
- Pseudoraja
- Raja
- Rajella
- Rhinoraja
- Rioraja
- Rostroraja
- Sympterygia
- Zearaja
Conservation
Skates have slow growth rates and, since they mature late, low reproductive rates. As a result, skates are vulnerable to overfishing and appear to have been overfished and are suffering reduced population levels in many parts of the world. The barndoor skate, Raja laevis, is currently listed with the IUCN as vulnerable due to being severely overfished.[2] However, population data are lacking to determine the exploitation of the big skate at this time.[citation needed]
In 2010, Greenpeace International added the barndoor skate, bottlenose skate, spotback skate, and maltese skate to its seafood red list. "The Greenpeace International seafood red list is a list of fish that are commonly sold in supermarkets around the world, and which have a very high risk of being sourced from unsustainable fisheries."[3]
Gallery
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Broad skate, Amblyraja badia
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A skate, half-buried beneath the sand
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A cut-away view of a skate egg case
See also
- Jenny Haniver, a fake sea monster created from a skate corpse
- Mokpo city of South Korea is famous for its skate cuisine.
References
- ^ Froese, Rainer, and Daniel Pauly, eds. (2009). "Rajidae" in FishBase. January 2009 version.
- ^ Florida Museum of Natural History
- ^ Greenpeace International Seafood Red list
External links
- ARKive - images and movies of the common skate (Dipturus batis)
- Kliman, Todd. "Skate Goes From Trash Fish to Treasure", Washingtonian, May 1, 2006.
UpToDate Contents
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English Journal
- DNA barcoding of Canada's skates.
- Coulson MW, Denti D, VAN Guelpen L, Miri C, Kenchington E, Bentzen P.SourceDepartment of Biology, Dalhousie University, Halifax, Nova Scotia, Canada B3J 4B2 Atlantic Reference Center, Huntsman Marine Science Centre, 1 Lower Campus Road, St. Andrews, New Brunswick, Canada E5B 2L7 Department of Fisheries and Oceans, Northwest Atlantic Fisheries Center, 80 East White Hills Road, St. John's, NL, Canada A1C 5X1 Department of Fisheries and Oceans, Bedford Institute of Oceanography, 1 Challenger Drive, Dartmouth, Nova Scotia, Canada B2Y 4A2.
- Molecular ecology resources.Mol Ecol Resour.2011 Nov;11(6):968-978. doi: 10.1111/j.1755-0998.2011.03034.x. Epub 2011 Jun 9.
- DNA-based identifications have been employed across broad taxonomic ranges and provide an especially useful tool in cases where external identification may be problematic. This study explored the utility of DNA barcoding in resolving skate species found in Atlantic Canadian waters. Most species were
- PMID 21658180
- The dependence of preferred competitive racing distance on muscle fibre type composition and ACTN3 genotype in speed skaters.
- Ahmetov II, Druzhevskaya AM, Lyubaeva EV, Popov DV, Vinogradova OL, Williams AG.Source1 Kazan State Medical University;
- Experimental physiology.Exp Physiol.2011 Sep 19. [Epub ahead of print]
- It is generally accepted that muscle fibre composition may influence physical performance. The α-actinin-3 (ACTN3) gene R577X polymorphism is suspected to be one of the contributing gene variations in the determination of muscle fibre type composition and athlete status. In the present study, we ex
- PMID 21930675
- Body fluid osmolytes and urea and ammonia flux in the colon of two chondrichthyan fishes, the ratfish, Hydrolagus colliei, and spiny dogfish, Squalus acanthias.
- Anderson WG, Nawata CM, Wood CM, Piercey-Normore MD, Weihrauch D.SourceDepartment of Biological Sciences, University of Manitoba, Winnipeg MB, Canada R3T 2N2.
- Comparative biochemistry and physiology. Part A, Molecular & integrative physiology.Comp Biochem Physiol A Mol Integr Physiol.2011 Sep 3. [Epub ahead of print]
- The present study has examined the role of the colon in regulating ammonia and urea nitrogen balance in two species of chondrichthyans, the ratfish, Hydrolagus colliei (a holocephalan) and the spiny dogfish, Squalus acanthias (an elasmobranch). Stripped colonic tissue from both the dogfish and ratfi
- PMID 21911071
Japanese Journal
- 乳輪乳頭同時再建による乳房再建 (特集 乳房再建術 私の方法)
- Molecular systematics of the skate subgenus Arctoraja (Bathyraja: Rajidae) and support for an undescribed species, the leopard skate, with comments on the phylogenetics of Bathyraja
- Spies Ingrid B.,Stevenson Duane E.,Orr James W. [他]
- Ichthyological research 58(1), 77-83, 2011-01-25
- NAID 40017445237
Related Links
- The world's number one resource for Japan's champion lady skaters.
- 2008年3月13日 ... skate.reelでは、ゲームからアップロードしたビデオ・スクリーンショットの確認や、世界中 の人たちがアップロードした作品の鑑賞を行える。驚くほど綺麗なトリック映像や、 思わず笑ってしまうような作品が多数公開されているので、ぜひ一度 ...
Related Pictures
★リンクテーブル★
[★]
ガンギエイ属、ラジャ属、Raja属
- 関
- skate
[★]
- 英
- skate
- 関
- スケート、ガンギエイ属
[★]
- 英
- skate
- 関
- ガンギエイ