[Annelida] Deep sea worms...shallow marine worms

[Matthew Kuo]

Dear All,
A couple of unusual questions: is anyone familiar with burrowing 
invertebrate species that pelletize (fecal pellets of 3-5mm diameter) 
deep sea soft clay sediments; and if there are species that produce 
similar-sized pellets in shallow marine/tidal (mud flats) environments? 
Can these shallow marine species be readily 'obtained' and 'farmed' in 
the laboratory?
Many thanks for your help.
Matthew.

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Matthew Kuo
Research Student
Geotechnical and Environmental Engineering Group
Cambridge University Engineering Department
Phone  +44 (0) 1223 766686
Mobile +44 (0) 7902 788835
Website http://www2.eng.cam.ac.uk/~myhk2/
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