SoundHAB: Ceratium fusus bloom near Edmonds

[Hannach, Gabriela]

Ceratium fusus was dominant September 7 at the three stations we routinely monitor in the Sound: Point Jefferson, East Passage near Maury and Quartermaster Harbor, so definitely a pretty extensive bloom.  I saw no Heterosigma in these samples.  -Gabriela

Gabriela Hannach, Ph. D.
King County Environmental Lab
322 West Ewing St
Seattle, WA 98119
206-684-2301
cell 276-5686
gabriela.hannach at kingcounty.gov<mailto:gabriela.hannach at kingcounty.gov>


From: soundhab-bounces at whoi.edu [mailto:soundhab-bounces at whoi.edu] On Behalf Of Jack Rensel
Sent: Tuesday, September 13, 2011 5:43 PM
To: soundhab at whoi.edu
Subject: SoundHAB: Ceratium fusus bloom near Edmonds

Sample collected late this afternoon from the Edmunds Marina by Kevin Bright.  A red-brown dense bloom extending offshore and seen from the Washington State ferry. The full extent of the bloom not known.

I saw numerous very healthy and mobile Ceratium fusus  mixed with some other thecate dinoflagellates in a field microscope.

Ceratium fusus has been implicated in larval shellfish, shrimp and fish mortality and is very common this time of year in inlets and bays, particularly of Southern Puget Sound.

J.E. Jack Rensel Ph.D.
Rensel Associates Aquatic Sciences
Jackrensel at att.net<mailto:Jackrensel at att.net>

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