Polluted Waters

[Bcereus at thedosshouse.freeserve.co.uk]

Hello all

Does anyone know anything about either
Stigeoclonium
Nitschia pales
for instance are they chemoorganotrophic / photoheterotrophic?

>From a case study of an organically polluted stretch of stream.

I hope you can help

Thanks in advance

Shaun Jones