SEA STAR WALKING
|Copyright: Kathy Davis (kedavis)
|Date Taken: 2004-05-11|
|Camera: Nikon Coolpix 3200|
|More Photo Info: [view]|
|Photo Version: Original Version|
|Date Submitted: 2006-09-05 11:44|
|Favorites: 1 [view]|
|[Note Guidelines] Photographer's Note|
It has been a while since I have been able to post. I have been looking over your latest posts and they are wonderful! Can't wait to comment! :-)
I tried to find a picture that you do not see everyday. This is what I found in my archives. SEA STAR WALKING is close up of one of the legs of a starfish (as we call them in the states). Each leg has MANY MANY little legs that can extend out from the bottom. They use these many little legs to run about. OK OK...Run is not quite accurate but they do move right along (see below) As always, critiques appreciated.
Thanks for sharing all your wonderful pictures.
How They Move..
Starfish may well be the most unusual well-known creature. They have no front or back: they can move in any direction without turning. Starfish use a complex hydraulic system to move their hundreds of tiny legs to move around or cling to rocks. The intake valve for this system is generally located on the top of the Starfish, just off center With so many little legs, starfish can reach enormous speeds . Some can go over 30 centimeters per minute! (That's 60 feet per hour....) And some species, go even faster.
The well-known species of starfish tend to be generalist predators, eating pretty much anything that's too slow to escape. Many prey heavily on bivalves (mussels, clams, and oysters). Starfish that eat bivalves can use their tube feet to hang on to the shell while pulling the two halves of the shell apart. As soon as a gap opens, even a small one, they extend their stomach into the shell and digest the mussel inside! Many starfish share this ability to extend ("evert") their stomach, whether for eating bivalves or in less specialized ways as an alternative to swallowing their food. Some species are more specialized and feed on sponges, or the infamous crown-of-thorns which feeds on coral. Some groups are adapted for suspension feeding (trapping and eating plankton suspended in the water).
Oxygen enters mainly by diffusion into the tube feet (and thus into the water vascular system) or the papulae, which are little sacs all over the upper surface of the body.
Regeneration of Arms
Among the amazing abilities of starfish is a remarkable talent for regeneration. A starfish that loses a ray can grow a whole new one, given time. Most species can only regenerate if the central part of the body is intact, but a few species can grow back even from a single ray. Those species will regenerate several whole starfish from a single starfish that gets torn apart.
Source: www.vsf.cape.com/~jdale/science/ecology.htm www.perspective.com/nature/animalia/starfish.html
extramundi, marhowie, liquidsunshine, jeanpaul, SunToucher, scottevers7, taba has marked this note useful
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wow, such a close shot of this Sea-star, I have never seen such wonderful details.
Brilliant colours and excellent sharpness, very well done, thanks
Sabine - wishnugaruda
I think you have captured an excellent and original picture here. Surprised with the clarity and details. Very good lighting too.
For my taste, the frame spoils the great elegance of the picture, but of course that is only a personal opinion.
I liked a lot, TFS.
Very nice close-up Kathy,
Luv the color, light, and detail I see..Definitely something you don't see every day :)
Very well done & TFS!
A nice and original picture. Quite colourful as well. I like it.
Well seen and well done.
Fantastic close up Kathy,
The details are nice, clear and sharp.
superb colours, lighting and exposure. The POV is good.
Well composed and excellent notes to accompany this unusual shot.
Thanks for posting, have a great week.
La prise est tres belle avec une jolie composition et un superbe macro de cette belle chenille.La prise est très nette, très détaillée.
les couleurs sont superbes.
bravo et merci du partage...JP
- [2006-09-05 20:40]
Very very sharp details, Kathy.
The color are gorgeous.
I like the way you cropped it.
Great job and TFS. : )
If seen them alive before, but never this close. Great to see all the little legs. Colors and sharpness are excellent. Where did you take this shot?
This is a very original and informative post. This is a great macro and I like the way that you composed it. Details are perfect with good colors and exposure. I never saw those details from so close...TFS,
Very Cool!! ;-} The colors and detail in this are superb. I really lie your choice of composition and tight cropping really shows some great intricate detail.
- [2006-09-08 7:04]
very interesting shot, very detailed and very well captured. POV, lighting and sharpness are excellent. Very well composed and presented.
- [2006-09-11 19:00]
Wow, great macro, Kathy! Great color and light. The only thing that I could suggest is to show the head or eyes.
- [2008-01-08 3:13]
very good capture and colors.
fine details and sharpness, I really like the POV of your photo.
great idea for a macro..