orange things on glass?

To show the scale of these things....

 

Thats what she said.. lol

 

Oh my god. lol...

 

Clown fish parts after hitting a MP60w?

This thread is going downhill fast

 

haha. No clowfish. No MP60.

Serious IDs please? :

 

Seano not sure what the are but if you keep an eye on them they will move. I get them to and they come and go.

 

Huh...that sounds really strange. Are you sure they aren't just moving in the water flow ( i.e. powerheads) or are they actually moving slowly on the glass? Are yours on the glass as well?

 

yes i get them on the glass as well. i have never seen them move i just assume it. i seen them in one spot in the morning and three inches from there in the afternoon.

 

hmm.. that's odd. it dosn't really look like a sponge to me, but the fragility would tend to suggest it isn't a bryozoan or foram. However, some sponges can move, so maybe...

J Exp Zool. 1988 Jun;246(3):271-84.
Locomotion of sponges and its physical mechanism.
Bond C, Harris AK.
Source

Department of Biology, University of North Carolina, Chapel Hill 27599-3280.
Abstract

Active locomotion by individual marine and freshwater sponges across glass, plastic and rubber substrata has been studied in relation to the behavior of the sponges' component cells. Sequential tracing of sponge outlines on aquarium walls shows that sponges can crawl up to 160 microns/hr (4 mm/day). Time-lapse cinemicrography and scanning electron microscopy reveal that moving sponges possess distinctive leading edges composed of motile cells. Sponge locomotion was found to be mechanically similar to the spreading of cell sheets in tissue culture both with respect to exertion of traction (which causes the wrinkling of rubber substrata) and with respect to the patterns of adhesive contacts formed with the substratum (as observed by interference reflection microscopy). Other similarities include the orientation of sponge locomotion along grooves and the preferential extension onto more adhesive substrata. Neither the patterns of wrinkling produced in rubber substrata nor the distributions of adhesive contacts seen by interference reflection microscopy show evidence of periodic, propagating waves of surface contractions, such as would be expected if the sponges' mechanism of locomotion were by peristalsis or locomotory waves. Our observations suggest that the displacement of sponges is achieved by the cumulative crawling locomotion of the cells that compose the sponge's lower surface. This mode of organismal locomotion suggests new explanations for the plasticity of sponge morphology, seems not to have been reported from other metazoans, and has significant ecological implications..

 

Thanks for the info. That's very cool!