[env-trinity] Algae and primary production in the Trinity River

Brandt Gutermuth BGUTERMUTH at mp.usbr.gov
Wed Oct 24 10:30:28 PDT 2007


I have had several locals comment that they believe that there has been
more plant growth (macrophytes), attached to the Trinity River bottom
this year in areas above the Indian Creek delta all the way up to the
dam, than in the past.  When asked why - I can only suggest that perhaps
there are more nutrients available which may come from watersheds,
septic systems, runoff from fertilized lawns etc.  

For instance the Trinity River Restoration Program received this email
the other day:

Dear Sir:
I see a lot of moss on the bottom of the river that has never been
there before. Can you tell me what it is and how it is getting there?
Does this have anything to do with your project. I've a home on Poker
Bar Road. This seems to be changing the way that the fish hold.  

Can any of you offer any information to back up (or refute) these views
that more attached algae is in the river today than in the recent years
and/or that increased nutrients may be available in the Trinity now than
in the past.  

Any other observations on attached algae in the Trinity?  

Thanks for your input -
Brandt 






____________________________
Brandt Gutermuth
Environmental Specialist
Trinity River Restoration Program
PO Box 1300 (mailing)
1313 S. Main Street (physical)
Weaverville, CA  96093
530.623.1806 (voice)
530.623.5944 (fax)
www.trrp.net (website)
___________________________



More information about the env-trinity mailing list