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April 29, 2016 - ESP Update #1

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Hi Mates,

Just wanted to provide you with an update for deployments of ESPs in the Gulf of Maine...

ESPjake was just deployed in a wetlab setting at the Bowdoin College coastal facility on Orr's Island, Maine (near Lumbo's Hole, a ME DMR PSP site).  Jake is sipping raw seawater from a wetlab tray with the source water pumped up from Harpswell Sound. In an adjacent tray with the same source water, mussel bags were placed for harvest at a sampling rate of 2-3x times per week to determine shellfish toxicity while ESPjake will be sampling at 3-5x per week.

We'd like to thank Darcie Couture (Resource Access International, Inc), Nick Keeney (Bowdoin coastal facility manager) and Dr. Collin Roesler (Bowdoin professor) for making ESPjake's deployment in the wetlab a reality.

After an initial test, Jake's mission was started yesterday...early returns are indicating weak positive "hits" from the NA1 probe that targets Alexandrium fundyense. Estimates from the standard curve revealed concentrations at about 100 cells/L, close to the detection limit of the ESP. The early results agree with the low shellfish toxicity results at Lumbo's Hole just posted by Alison (ME DMR). Furthermore, the array also returned solid "hits" from a new Pseudo-nitzschia probe (muD2).

The data web server was just activated with a Google Earth map showing the 3 deployment sites for 2016:

Please click on the year and instrument to see the near real time plot...only ESPjake is currently returning field data.

General locations of the 3 ESPs:
ESPjake at Bowdoin wetlab on Harpswell Sound near ME DMR shellfish sampling site at Lumbo's Hole
ESPdon in Casco Bay near ME DMR shellfish sampling sites at Potts Point and Basin Points
ESPdennis located just upstream in the coastal flow from the ME DMR sampling site at Ogunquit

Meanwhile, ESPdon and ESPdennis are on deck in the LOSOS High Bay at WHOI. They are installed in their mooring systems and are undergoing a final systems check with deployment into the western Gulf of Maine scheduled for next week from the R/V Connecticut.

As the season starts, I want to gratefully acknowledge the support of our partners at MBARI, McLane Research, Inc, EOM offshore, Inc, the WHOI buoy group, and Neil McPhee (WHOI). Funding was provided through NOAA-MERHAB, NOAA-NERACOOS, and the NSF Partners for Innovation: Building Innovation Capacity (PFI:BIC) programs. Finally, I really appreciate the hard work of Liann Correia, a new hire in January into the ESP lab of Dr. Don Anderson. Liann has been working closely with me to prepare the ESP instruments and their moorings to make them fully operational for the season.

Another bloom season has begun, so check back for the latest ESP results,

Bruce Keafer
Research Associate (ESP lab - Dr. Don Anderson)
Laboratory for Ocean Sensors and Observing Systems (LOSOS)
Mail Stop 57
Woods Hole Oceanographic Instituion
Woods Hole, MA 02543
508-289-2509 (LOSOS office and ESP lab)

Last updated: July 1, 2019

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