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Ray


Ray
Photo Information
Copyright: Paulo Tcr (tcr) Gold Star Critiquer/Gold Note Writer [C: 158 W: 8 N: 538] (3384)
Genre: Animals
Medium: Color
Date Taken: 2009-04-06
Categories: Fish
Camera: Canon 1000D, Canon EF-S 18-55mm f/3.5-5.6 IS
Exposure: f/3.5, 1/250 seconds
Photo Version: Original Version
Theme(s): Underwater World #2 [view contributor(s)]
Date Submitted: 2010-04-22 8:16
Viewed: 3510
Points: 8
[Note Guidelines] Photographer's Note
Oceanarium / aquarium photo.

Batoidea.

Batoidea is a superorder of cartilaginous fish commonly known as rays, containing more than 500 described species in thirteen families. They are closely related to sharks, from which they can be distinguished by their flattened bodies, enlarged pectoral fins that are fused to the head, and gill slits that are placed on their ventral surfaces.

Batoids are flat-bodied, and, like sharks, are a species of cartilaginous marine fish, meaning they have a boneless skeleton made of a tough, elastic substance. Most batoids have five ventral slot-like body openings called gill slits that lead from the gills, but the Hexatrygonidae have six. Batoid gill slits lie under the pectoral fins on the underside, whereas a shark's are on the sides of the head. Most batoids have a flat, disk-like body, with the exception of the guitarfishes and sawfishes, while most sharks have a streamlined body. Many species of batoid have developed their pectoral fins into broad flat wing-like appendages. The anal fin is absent.

The eyes and spiracles are located on top of the head.

Habitat.
Most species live on the sea floor, in a variety of geographical regions - many in coastal waters, few live in deep waters to at least 3,000 metres (9,800 ft), most batoids have a somewhat cosmopolitan distribution, in tropical and subtropical marine environments, temperate or cold-water species. Only a few species, like manta rays, live in the open sea, and only a few live in freshwater. Some batoids can live in brackish bays and estuaries. Bottom-dwelling batoids breathe by taking water in through the spiracles, rather than through the mouth as most fishes do, and passing it outward through the gills.

Feeding.
Most batoids have developed heavy, rounded teeth for crushing the shells of bottom-dwelling species such as snails, clams, oysters, crustaceans, and some fish, depending on the species. Manta rays feed on plankton.


Wikipedia.


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To ana974: Local.tcr 1 01-19 15:05
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Critiques [Translate]

Hola Paulo

Bonita toma de esta pequeña raya, que se ven en muchos acuarios, son animales muy originales.

Has conseguido una captura muy buena, el difuminado oscuro da más fuerza a la imagen.

Un saludo Antonio

Hello! Neat post!! What an interesting POV on this ray! TFS!

  • Great 
  • foozi Gold Star Critiquer/Gold Note Writer [C: 2791 W: 0 N: 6696] (25839)
  • [2010-04-23 3:57]

Hi Paulo,
wow...this is a magnificent shot. The artistic view is well composed. I like its elegance and the contrasting effect.
nice shot.

Regards,
Foozi

Oi Paulo !
Mais um brasileiro aqui no TN ! Que prazer! Obrigada por seu comentário em minha fot "Água-viva".
Visitei sua galeria e escolhi esssa linda raia para deixar meu comentário e te dar mais dois pontos pela bela composição, nitidez,
bom contraste com o fundo. Belo trabalho!Apenas gostaria de saber se foi tirada num aquário ou é uma foto submarina.
Um abraço ,
aNa

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