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Cotylorhiza tuberculata

Cotylorhiza tuberculata
Photo Information
Copyright: Selen Ediger (SelenE) Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 2249 W: 65 N: 4205] (13972)
Genre: Animals
Medium: Color
Date Taken: 2006-08-24
Categories: Cnidarians
Camera: Canon EOS 20D, Canon EF 70-300mm f/4-5.6 IS USM, HOYA Pro1 Digital 58mm MC PL-C
Exposure: f/5.6, 1/125 seconds
Photo Version: Original Version
Theme(s): JellyFish, Underwater World #2 [view contributor(s)]
Date Submitted: 2006-09-01 4:33
Viewed: 6815
Favorites: 1 [view]
Points: 22
[Note Guidelines] Photographer's Note
Cotylorhiza tuberculata.
Taken from the boat (not underwater) in Gokova Gulf -Turkey.

Phylum: Cnidaria
Class: Scyphozoa
Order: Rhizostomeae
Family: Cepheidae

This species is common to Aegean and Mediterranean sea. I have personally never seen them till now, in my 16 years of free diving and snorkelling experience in Turkey's Aegean and Mediterranean coast.

But when they occur in large numbers, something can be wrong... Mass occurences of the jellyfish can affect human activities in several ways. People who are not familiar with these animals can be easily stung and become frightened by the sudden pain and subsequent burned-like wound.

In the literature, a total of five scyphomedusan species (Aurelia aurita, Chrysaora hysoscella, Cotylorhiza tuberculata, Pelagia noctiluca and Rhizostoma pulmo) was reported to occur along the Turkish coasts (Balik, 1973; Bingel et al., 1991; Demir, 1952; Mutlu et al., 1994 and unpublished data of Dr A.C. Gücü).

Ecologists have warned that the sheer size of the jellyfish invasion this year is an indication of degradation and imbalance in the ecosystem of the Mediterranean Ocean. Jellyfish are 95 percent water. They feed on plancton, thrive in warm waters, and are eaten by marine reptiles such as turtles. According to marine biologists, global warming favours the proliferation of animals like jellyfish.

Meanwhile, the rise in population along the Mediterranean, as more and more people choose to buy property near the sea, has caused an increase in residual waters which are poured into the sea, creating an excess in certain nutrients which the jellyfish feed on. Finally, more than 25,000 sea turtles are trapped in illegal fishing nets each year, to such an extent that all kinds of sea turtles are now considered to be in danger of extinction. And there are less and less around to challenge the thriving community of Mediterranean jellyfish.

manyee, pat, red45, dew77, Adam73, gerhardt, egeerhan, ayk55, ecem35, mesquens has marked this note useful
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Critiques [Translate]

This jellyfish makes a very interesting and colourful picture full of textures and wonder. Good notes too.

  • Great 
  • manyee Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 3089 W: 230 N: 6774] (23770)
  • [2006-09-02 0:49]

What an amazing creature, Selen.
The details and colors are amazing. Such clarity, especially through water from above.
Definitely ominous... like a creature from outer space.
TFS. : )

  • Great 
  • pat Gold Star Critiquer/Gold Note Writer [C: 87 W: 0 N: 125] (414)
  • [2006-09-02 3:35]

Marvellous picture of this jellyfish with its so wonderful colours. These are amazing creatures, so fascinating to see alive when they glide through water just like dancing. The small fishes on the right are a net plus for this excellent composition.

Strange but beautiful...

Composition & POV : 10
Sharpness & DOF : 10
Light & color: 10
Creativity & Originality: 9

Best regards,
Radu Xplorator

  • Great 
  • red45 Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 2636 W: 74 N: 9091] (31094)
  • [2006-09-02 17:43]

You're very creative and surprising :-) Every picture shows us something different and new. This underwater creature is simply beautifull. Colours looks great on blue BG. I like it very much.

  • Great 
  • dew77 Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 4432 W: 248 N: 4028] (13270)
  • [2006-09-04 9:36]
  • [2]

Hello Selen,
Very nice and unusual capture.POV,colors,details,sharpness and your informative note are wonderful.Excellent work!

  • Great 
  • Adam73 Gold Star Critiquer/Gold Note Writer [C: 208 W: 5 N: 522] (2253)
  • [2006-09-06 14:45]

Very strange looking animal. :) Very nice colors and exposure here.

I am amazed by the clarity of the water shown in this capture and some others you have posted. This is a very intersting subject and given the fact that it was in the water I am nit sure I would have pulled off the exposure as correctly as you did. Very well done.

Bence tamamen kadraja girmesi digerine gore daha guzel olmus. Detaylar cok iyi, ufak baliklar da esantiyon :)

  • Great 
  • ayk55 Gold Star Critiquer [C: 144 W: 0 N: 4] (251)
  • [2006-11-10 13:26]

Kompozisyon,renkler,ışık hepsi çok iyi.Tebrikler Selen

Benzeri az görülen nefis bir çalışma. Suyun üzerinden çekildiğini söylemeseniz anlamazdım. Tebrikler Selen

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