This from the phycotoxins list. Shall I stop forwarding these? Elaine Harmon - eilidh_at_dc.seflin.org - eharmon_at_cs.miami.edu ---------- Forwarded message ---------- Date: Fri, 22 Oct 1999 18:00:16 -0300 (ADT) From: Bill Silvert <bill_at_ecology.bio.dfo.ca> Reply-To: Phycotoxins_at_lists.listquest.com To: Phycotoxins <phycotoxins_at_lists.listquest.com> Subject: PHYCOTOXINS: Red Tides in Florida More from CRS: In mid-October 1999, red tides were reported in a fourth area along the Atlantic Coast of central FL. Meanwhile, the bloom off southwest FL was reported to be diminishing. Several panhandle counties have been designated economic injury disaster areas due to the red tide. [Assoc Press, Jacksonville Times-Union, Tampa Tribune] *************************************************************************** PaddleWise Paddling Mailing List - All postings copyright the author and not to be reproduced outside PaddleWise without author's permission Submissions: paddlewise_at_lists.intelenet.net Subscriptions: paddlewise-request_at_lists.intelenet.net Website: http://www.paddlewise.net/ ***************************************************************************
hi Elaine, > > More from CRS: > > In mid-October 1999, red tides were reported in a fourth area along the > Atlantic Coast of central FL. Meanwhile, the bloom off southwest FL > was reported to be diminishing. Several panhandle counties have been > designated economic injury disaster areas due to the red tide. > [Assoc Press, Jacksonville Times-Union, Tampa Tribune] > do the articles suggest a cause of the red tides? bye bye bliven *************************************************************************** PaddleWise Paddling Mailing List - All postings copyright the author and not to be reproduced outside PaddleWise without author's permission Submissions: paddlewise_at_lists.intelenet.net Subscriptions: paddlewise-request_at_lists.intelenet.net Website: http://www.paddlewise.net/ ***************************************************************************
On Sat, 23 Oct 1999, Larry Bliven wrote: > do the articles suggest a cause of the red tides? Hi Larry, I just send them as they appear. But the causes of algae blooms are basically what you would expect: Favorable conditions for multiplication of the l'il critters. Warmer water, lots of nutrients, minerals they like. Algae blooms, and especially HAB's (harmful algae blooms) have increased a lot in recent years globally. Usually this is attributed to global warming affecting the coasts, where they are located, runoff of fertilizers, etc. HAB's have caused major kills of wild and farmed fish, kills of birds, manatees, seals, and of course illness or death of people through consumption of accumulated toxins in shellfish, mostly. Major categories: DSP, ASP, PSP ( diarrhetic, amnesic, paralytic shellfish poisoning), ciguatera, and the new kids on the block, Pfiesteria and relatives. HAB's of hepatotoxic freshwater cyanobacteria ("blue-green algae") are also increasing. In many cases, toxin production seems to be associated with, and maybe caused by, bacteria living in close relationship with the algae. That may explain why some species of algae have gotten to be toxic, or more toxic, than they had been, and why "new" toxins continue to be discovered. The capacity of bacteria for rapid evolution is marvelous to behold. e Elaine Harmon - eilidh_at_dc.seflin.org - eharmon_at_cs.miami.edu *************************************************************************** PaddleWise Paddling Mailing List - All postings copyright the author and not to be reproduced outside PaddleWise without author's permission Submissions: paddlewise_at_lists.intelenet.net Subscriptions: paddlewise-request_at_lists.intelenet.net Website: http://www.paddlewise.net/ ***************************************************************************
http://www.marinelab.sarasota.fl.us/~mhenry/WREDTIDE.phtml 'Although coastal pollution has enhanced red tide blooms in other areas of the world, the Florida red tides represent a natural process not caused by pollution. These blooms serve a purpose in the ecology of Florida Gulf coastal regions. Our responsibility is to understand the purpose and function of red tides, directing our efforts toward alleviating the adverse effects without causing further ecological damage. ' =========== does this website offer a realistic view of florida red tides? guess i need to read more about this subject. bye bye bliven *************************************************************************** PaddleWise Paddling Mailing List - All postings copyright the author and not to be reproduced outside PaddleWise without author's permission Submissions: paddlewise_at_lists.intelenet.net Subscriptions: paddlewise-request_at_lists.intelenet.net Website: http://www.paddlewise.net/ ***************************************************************************
On Sat, 23 Oct 1999, Larry Bliven wrote: > http://www.marinelab.sarasota.fl.us/~mhenry/WREDTIDE.phtml (quote snipped) > does this website offer a realistic view of florida red tides? I just looked at it. Seems OK. Bear in mind that while Gymnodinium breve is the usual culprit around here, there are LOTS of other species involved in HAB's. Fla. has had red tides since at least as far back as 1844, so we can't blame pollution here. One theory was that red tides occurred when the freshwater inflow to the Gulf was between certain limits. I don't know how well that one has checked out. My own interest has been more in shipping ballast water transfer of foreign species, because of my involvement in an environmental brouhaha in NW Scotland (proposed major coastal superquarry in my neighborhood). I'm not a marine biologist. e Elaine Harmon - eilidh_at_dc.seflin.org - eharmon_at_cs.miami.edu *************************************************************************** PaddleWise Paddling Mailing List - All postings copyright the author and not to be reproduced outside PaddleWise without author's permission Submissions: paddlewise_at_lists.intelenet.net Subscriptions: paddlewise-request_at_lists.intelenet.net Website: http://www.paddlewise.net/ ***************************************************************************
At 06:39 AM 10/23/99 -0400, Larry Bliven wrote: >http://www.marinelab.sarasota.fl.us/~mhenry/WREDTIDE.phtml > >'Although coastal pollution has enhanced red tide blooms in other areas of >the world, the Florida red tides represent a natural process not caused by >pollution. These blooms serve a purpose in the ecology of Florida Gulf >coastal regions. Our responsibility is to understand the purpose and >function of red tides, directing our efforts toward alleviating the adverse >effects without causing further ecological damage. ' > >=========== > >does this website offer a realistic view of florida red tides? > >guess i need to read more about this subject. > >bye bye bliven > yup it does and it also stinks but after a couple hours away or in air condition it should stop bothering you. Ours in NE Fla is just about gone thanks to Irene. Dana *************************************************************************** PaddleWise Paddling Mailing List - All postings copyright the author and not to be reproduced outside PaddleWise without author's permission Submissions: paddlewise_at_lists.intelenet.net Subscriptions: paddlewise-request_at_lists.intelenet.net Website: http://www.paddlewise.net/ ***************************************************************************
From: "Larry Bliven" <foxhill_at_shore.intercom.net> > http://www.marinelab.sarasota.fl.us/~mhenry/WREDTIDE.phtml <snip> > =========== > > does this website offer a realistic view of florida red tides? > > guess i need to read more about this subject. That's the Mote Marine Laboratory. I would guess it would be fairly realistic :-) You might check out the GASP website on red tide which has several links to info about red tide, what it is and its impact on the environment and humans as well as red tide up-dates at http://www.gasp-seakayak.net/red-tide.html Jackie *************************************************************************** PaddleWise Paddling Mailing List - All postings copyright the author and not to be reproduced outside PaddleWise without author's permission Submissions: paddlewise_at_lists.intelenet.net Subscriptions: paddlewise-request_at_lists.intelenet.net Website: http://www.paddlewise.net/ ***************************************************************************
hi Elaine and Jackie, thanks for the explanation and links. red tide stuff as a function of local/global human activity, weather&climate, and rapid evolution should keep me reading for quite a while.... bye bye bliven *************************************************************************** PaddleWise Paddling Mailing List - All postings copyright the author and not to be reproduced outside PaddleWise without author's permission Submissions: paddlewise_at_lists.intelenet.net Subscriptions: paddlewise-request_at_lists.intelenet.net Website: http://www.paddlewise.net/ ***************************************************************************
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