SoundHAB: Alexandrium catenalla bloom in NPS, ongoing Chaetoceros bloom CPS and Strait

[Jack Rensel]

Today in Bellingham Passage (between Guemes and Cypress Island) cell counts
of PSP-causing Alexandrium catenalla were approximately 0.25 million cells
per liter, one of the most dense blooms observed there for some time.
Surrounding areas have similar brownish water coloration suggesting a broad
distribution.   

 

Separately, harmful Chaetoceros convolutus cell numbers increased over past
few days in central Puget Sound and Port Angeles Harbor.  Lower
concentrations have been recorded in the Strait of Juan de Fuca near Ediz
Hook.  Depth distribution confirms that it is not just surface oriented, but
is generally higher near the surface.  The outlook for very hot weather
tomorrow may exacerbate these blooms or events, judging from past
experience. 

 

J.E. Jack Rensel Ph.D.

Rensel Associates Aquatic Sciences

Arlington WA 98223 USA

cell: 360-631-6538

jackrensel at att.net

 

 

 

 

 

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