|Copyright: Grzegorz Wieczorek (red45)
|Date Taken: 2005-09|
|Camera: Olympus 765UZ|
|Exposure: f/8, 1/320 seconds|
|Photo Version: Original Version|
|Date Submitted: 2006-01-02 4:13|
|[Note Guidelines] Photographer's Note|
|End of old year, start of new one - good moment for some memoirs from passed 2005. Today shot from hot and beautifull Bulgarian beach. Off line crab resting with company of some algaes and empty shells [like Klingons used to say ;-)]. September was very good month and Bulgaria showed us its beauty. I hope there will be another opportunity to visit these great places again.|
The term crab is often applied to several different groups of short (nose to tail) decapods with thick exoskeletons, but only members of the Brachyura are true crabs; other taxa, such as hermit crabs, porcelain crabs, king crabs, and horseshoe crabs are, despite superficial similarities, not crabs at all. Hermit crabs, king crabs and porcelain crabs belong to the Anomala and can be distinguished from true crabs by counting the legs - in Anomala, the last pair of pereiopods (walking legs) is hidden inside the carapace and so only four pairs are visible (counting the claws), whereas uninjured true crabs always have five visible pairs.
True crabs are crustaceans in the infraorder Brachyura, in the order Decapoda. They have five pairs of walking legs (the first of which is modified into a pair of claws or chelae) and typically a flattened shell. In all but a few crabs (for example, Raninoida), the abdomen is folded under the cephalothorax. The form of the abdomen usually reveals the sex of the crab - males have a narrow abdomen, while females have a much wider abdomen, under which they carry their eggs. Crabs are a very diverse group, mostly found in salt water, but with some groups living in freshwater or on land. Although famed for their tendency to walk sideways, crabs are in fact able to walk in any direction. Classification within the crabs is traditionally based on the position of the gonopores: whether they are found on the legs or on the thorax. In the two "primitive" sections (sometimes called collectively the "Podotremata"), the gonopores are found on the legs (as in all other decapods); in the Heterotremata, the male gonopores are on the legs, and the female gonopores are on the sternum; in the Thoracotremata, the gonopores are on the sternum in both males and females.
Janice, livios, Dave, marhowie, dew77, petrudamsa, cedryk has marked this note useful
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|To Jancie: Crabs||red45
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- [2006-01-02 4:38]
Are the good old Klingons still around Greg?
You have a good sharp photo here, the crab stands out well against the seaweed and shells. Good memories for you. Well shown, thank you...
Looking at the shells, this fellow doesn't look too big - you weren't scared of him, I hope!!
I'm afraid of crabs! :-)
- [2006-01-02 9:08]
Grzegorz, as usual, perfect sharness.
I like colors and exposure too - you did an excellent job with the whites.
- [2006-01-02 9:15]
Excellent note with a beautiful picture Greg!
Great sharpness and detail and an interesting frame Greg. Excellent note, Well done!
- [2006-01-02 14:16]
Very nice and unusual capture.Details are crisp clear and razorsharp.POV,framing and composition are wonderful.TFS..:-)
Nice composition with many elements. Good photo.
(By the way, I'm just having the well deserved New Year hangover, two days later :-))
- [2006-01-08 6:36]
The species is Carcinus maenas of family Portunidae. The English name is European Green Shore Crab. It is very common along the Atlantic and Mediterranean coasts of Europe.