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<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'>Here is some recent observations I compiled concerning the
ongoing bloom. I encourage others of you to provide observations as you see
fit. </span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'>Scott Ridgeway provides the following general information as
of the morning of </span></font><font face=Arial><span style='font-family:Arial'>25
August 2006</span></font><font face=Arial><span style='font-family:Arial'>. </span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'>Scott is a fish farm technician with 18 years experience
observing and quantifying harmful algae in </span></font><font face=Arial><span
style='font-family:Arial'>Central Puget Sound</span></font><font face=Arial><span
style='font-family:Arial'> for the fish farming company, American Gold
Seafoods. </span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'>- Presently their daily observations (net tows and discrete
water bottle samples) show highest concentrations in the restricted channels
and bays west of </span></font><font face=Arial><span style='font-family:Arial'>Bainbridge</span></font><font
face=Arial><span style='font-family:Arial'> </span></font><font face=Arial><span
style='font-family:Arial'>Island</span></font><font face=Arial><span
style='font-family:Arial'> including </span></font><font face=Arial><span
style='font-family:Arial'>Brownsville</span></font><font face=Arial><span
style='font-family:Arial'>, Illahee, </span></font><font face=Arial><span
style='font-family:Arial'>Sinclair</span></font><font face=Arial><span
style='font-family:Arial'> </span></font><font face=Arial><span
style='font-family:Arial'>Inlet</span></font><font face=Arial><span
style='font-family:Arial'> and Dyes Inlet. </span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'>- Notable but lower densities are being seen in the main
body of </span></font><font face=Arial><span style='font-family:Arial'>CPS</span></font><font
face=Arial><span style='font-family:Arial'> at the sampling location east of </span></font><font
face=Arial><span style='font-family:Arial'>Bainbridge</span></font><font
face=Arial><span style='font-family:Arial'> </span></font><font face=Arial><span
style='font-family:Arial'>Island</span></font><font face=Arial><span
style='font-family:Arial'> near Blakely Rocks. </span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'>- Interestingly, the </span></font><font face=Arial><span
style='font-family:Arial'>Clam</span></font><font face=Arial><span
style='font-family:Arial'> </span></font><font face=Arial><span
style='font-family:Arial'>Bay</span></font><font face=Arial><span
style='font-family:Arial'> area (site of NOAA and EPA laboratories and 3 farm
sites) remains somewhat free of A. catenella. During the Heterosigma bloom of
early August it was also relatively free of that alga and in both cases
experiences cooler, clearer water than that of </span></font><font face=Arial><span
style='font-family:Arial'>CPS</span></font><font face=Arial><span
style='font-family:Arial'> and the associated backwaters mentioned above. This
morning near surface DO was 4.2 mg/L, typical of mixed, upwelled water often
seen there in the late summer. Water visibility is very high, as measured by
Secchi disk.</span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'>- Scott notes that cell densities of A. catenella were the
highest he has ever seen (in 18 years) about 4 weeks ago but have declined
since then. </span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'>- I collected a series of CTD casts and other data in the
area 4 weeks ago and noted some unusually warm near surface water temperatures in
the areas mentioned above, extending across the sound to </span></font><font
face=Arial><span style='font-family:Arial'>Seattle</span></font><font
face=Arial><span style='font-family:Arial'>. I have preserved samples from
throughout the area at that time. </span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'>Bill Clark, manager of the </span></font><font face=Arial><span
style='font-family:Arial'>Cypress</span></font><font face=Arial><span
style='font-family:Arial'> </span></font><font face=Arial><span
style='font-family:Arial'>Island</span></font><font face=Arial><span
style='font-family:Arial'> sites in </span></font><font face=Arial><span
style='font-family:Arial'>North Puget Sound</span></font><font face=Arial><span
style='font-family:Arial'> with experience in that area since the 1980s added
observations in NPS:</span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'>- Mixed diatom and dinoflagellate assemblages continue to
be present as they have since the cessation of the late June and early July
2006 Heterosigma bloom. </span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'>- A. catenella has been observed periodically during this
time period but not at high densities. </span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'>- Water temperatures have remained near 12°C except for a
few days of 13°C since the Heterosigma bloom there. Dissolved oxygen is
somewhat higher than seen near </span></font><font face=Arial><span
style='font-family:Arial'>Manchester</span></font><font face=Arial><span
style='font-family:Arial'>, mid 5 to 6 mg/L. Secchi disk is moderate. </span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'>Randy Hodgin, manager of the </span></font><font face=Arial><span
style='font-family:Arial'>Port Angeles</span></font><font face=Arial><span
style='font-family:Arial'> site near the </span></font><font face=Arial><span
style='font-family:Arial'>Strait of Juan de Fuca</span></font><font
face=Arial><span style='font-family:Arial'> and phytoplankton technician Brett Raemer
report only occasional A. catenella cells and typically cool water temperatures
of 10.5 to 11.5 in that area.</span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'>There is a working conceptual model of what causes
Heterosigma blooms in </span></font><font face=Arial><span style='font-family:
Arial'>Puget Sound</span></font><font face=Arial><span style='font-family:
Arial'> and approaches that can be developed into a numerical model. This
model was developed first by fish farmers and they use it in their management
every year. </span></font><font face=Arial><span style='font-family:Arial'>Laurie
Connell</span></font><font face=Arial><span style='font-family:Arial'> and I have
written about this in the past and this year’s experience is being used
to refine the model a bit more. </span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'>Hopefully as monitoring increases and recording or real time
moorings are placed in </span></font><font face=Arial><span style='font-family:
Arial'>Puget Sound</span></font><font face=Arial><span style='font-family:
Arial'> we can develop such models for other species that increasingly are
shown to affect both fish and shellfish, wild and cultured as well as the
entire food web. </span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'>Today’s local media story about the PSP bloom, complete
with a picture of Noctiluca blooming in Penn Cove at <a
href="http://seattlepi.nwsource.com/local/282565_redtide25.html">http://seattlepi.nwsource.com/local/282565_redtide25.html</a></span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>++++++++++++++++++++++++++</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>J.E. </span></font><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Jack Rensel</span></font><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> Ph.D.</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Rensel Associates Aquatic Sciences</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>4209 234th Street N.E.</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Arlington</span></font><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'> </span></font><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'>Wa</span></font><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> </span></font><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>98223</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><a href="mailto:jackrensel@att.net">jackrensel@att.net</a></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>360-435-3285</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Cell 360-631-6538</span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> </span></font></p>
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