SoundHAB: Noctiluca vs brown

[William P Cochlan]

Although most of you already know this Noctiluca is 100% heterotrophic, but often has a photosynthetic symbiont inside.  Regarding suspected ammonia/ammonium toxicity. ..if one wants to see if this is the case here in PS,  fresh samples can be analyzed very quickly for ammonium at FHL by my RTC team (there until June 29) using a very precise and accurate fluorescence assay.  Samples should be collected wearing gloves in a clean, well-rinsed container (PP or HDPE) and stored in the dark and chilled...do not freeze.
Bill

William Cochlan, PhD

Senior Research Scientist
Romberg Tiburon Center
San Francisco State University
3152 Paradise Drive
Tiburon, CA 94920

Office:  415-338-3541
Fax:  415-435-7120
Cell:  808-640-8552

E-mail: cochlan at sfsu.edu<mailto:cochlan at sfsu.edu>


On Jun 13, 2012, at 7:09 AM, Krembs, Christopher (ECY) wrote:

Quarter Master Harbor Noctiluca from the air. Tuesday 4:15 PM

Christopher

-----Original Message-----
From: soundhab-bounces at whoi.edu<mailto:soundhab-bounces at whoi.edu> [mailto:soundhab-bounces at whoi.edu] On Behalf Of Karlista Rickerson
Sent: Tuesday, June 12, 2012 4:44 PM
To: soundhab at whoi.edu<mailto:soundhab at whoi.edu>
Subject: SoundHAB: Noctiluca vs brown


Quarter Master Harbor at 12:30 today
Away from the mass of Noctiluca piled at the north end or the  windward corner of the float.
Does Noctiluca comsum other plankton or just use up all other nutrients?  The sample gathered in a qt jar had the heavy orange scum at the top, this morning the scum had piled up on the bottom of the jar (in the frig.)?Reading the other posts I remember that when I sampled from QMH yesterday I could see tan blobs at different depth drifting by under the faint orange scum.
I took a sample of just the  tan blobs - looks like bits and pieces of Cheatoceros!
The net tow sample that we took at 12:30 was very "clean"!    Chaetoceros rare,  Dinophyses total of 3 and no PN or Alex. Total math not yet done.
All too interesting and I need to move on to other items!
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