[Coral-List] Correction Toxins/Parrot Fish deaths
martin.pecheux at free.fr
Sat Aug 27 10:26:28 EDT 2005
Indeed a dinoflagellate produces palytoxin, Ostreopsis. Not in current
A little more at:
www.arvam.com, jpascal.quod at arvam.quod
Dr. Martin Pêcheux
Institut des Foraminifères Symbiotiques
16, rue de la Fontaine de l'Espérance, 92160 Antony, France
martin.pecheux at free.fr
+33(0) 8711 804 32
31 August, Uranus closest to Earth.
At 19.0573 AU, (Sun-Earth distance, 8 min 20 s light time). Magnitude 5.7,
difficult but visible. Apparent diameter 3.7", a pretty small green ball in
Aquarius constellation, right ascention 22 hour 42.8 min, declinaison -9°02'.
At the other side than the Sun.
One told me that the Dogon (Niger) have known her before colonisation.
XX % REDUCTION OF HUMAN CO2 SOURCES IN YEAR 20XX
Cadu a *crit :
> Dear Dr.Martin Pêcheux , in 1998 a bloom of Ostreopsis appeared covering
> huge areas over epilitic algae here in southeastern brazilian coast. At that
> time I was finishing my PhD thesis monitoring some sites. Urchins together
> with other herbivores were being quantitatively monitored. The Ostreopsis
> make urchins Echinometra lucunter to lose spines and die. In some locations,
> specially bays, fish was detected to also die. The toxin was sent to Belgiun
> and Japan and was identified as palytoxin. I have photos and a ms in
> development. I would appreciate any info about cases and related papers.
> Carlos Eduardo Leite Ferreira, Dr.
> IEAPM, Dept. de Oceanografia
> Rua Kioto 253, Arraial do Cabo, RJ
> Cep: 28930 000, Brazil
> Lab: + 55 22 26229016
> Fax: + 55 22 26229093
> Email: kadu at alternex.com.br
> Sent: Thursday, August 25, 2005 12:09 PM
> Subject: [Coral-List] Re: [C-L] Toxins/Parrot Fish deaths
> > Just a precision.
> > Harmful algae bloom of dinoflagellate do not produce palytoxins, but
> > maitotoxin (ciguatera), brevetoxin (Shellfish P, by ex-Gymnodinium as
> > Symbiodinium, somewhat distant), saxitoxin (Paralytic). They block
> > or open Na+ channels (four-domains six-trans-membrane clsse, in the family
> > with Ca+ and K+ voltage depedant, those of our muscle and brain). Some
> > diatoms and cyano produce other ones. See at:
> > www.bigelow.org/hab/toxin.html and up
> > and more general www.whoi.edu/redtide/index.html
> > Ah, ah, would Symbiodinium uses that during bleaching ? Low chance, a
> > jellyfish is insensitive to tetrodotoxin and saxitoxin (at >10e-5),
> > but....I didn't find somebody for analysis
> > Increasing Red Tide let one thick also on bleaching.Those one, CO2 lovers
> > ?
> > Happy holliday end,
> > -- Dr. Martin Pêcheux (IPCC Expert)
> > Institut des Foraminifères Symbiotiques
> > (Laboratoire de Biogéochimie et Chimie Marines, Jussieu, Université Paris
> > VI)
> > 16, rue de la Fontaine de l'Espérance, 92160 Antony, France
> > martin.pecheux at free.fr
> > +33(0) 8711 804 32
> > Publications at www.reefbase.org in which Review on Reef Bleaching, 214p.
> > XX % REDUCTION OF HUMAN CO2 SOURCES IN YEAR 20XX
> > 4567....Age ofSolar System in million years (+/-0.6, some say 0.7,
> > Science, 2002, 297, 1678-1683, Nature, 2004, 431, 275-278)
> > 3x4567....Age of Universe (13.7Gy+/- 0.2, WAMP data + model)
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