Todd Morrison, OES member
Intrepid OES mentors, Drs. Todd and Hilary Morrison, once again traveled to the Outer Banks of North Carolina to meet with the Phyto-Finders of First Flight High School. OES has been supporting this student club since 2010. We arrived in the middle of April, knowing that the last experienced member of the club, one of the attendees at OCEANS 2022 Hampton Roads, would be graduating in June, leaving the future of various proposed research and development projects uncertain.
To our delight, Hilary and I were introduced to a new core of sophomore and freshman women, all extraordinarily enthusiastic about the Phyto-Finders and ready to forge ahead.
Working with these new students in the science lab, Hilary was able to begin trialing a new eDNA processing technique. The club’s main target species, Pseudo nitzschia, produces domoic acid, a potent and potentially fatal neurotoxin. The new approach promises to enable same day detection, with very high sensitivity, of Pseudo nitzschia in tow samples. Notably, this would be by the students and in their classroom lab. There would no longer be a need to ship extracted eDNA to Woods Hole for sequencing, an approach the Phyto-Finders previously used. This change greatly reduces the response time should a potentially toxic bloom be imminent.
On another front, one long-standing problem has been getting the sample bottle at the end of the plankton tow net to reliably flood as it enters the water. This issue, which has been discussed in previous Beacon articles, had been orphaned during COVID. Working with Todd, these new students were able to resolve the problem with a rigid extension to the tow frame that was successfully tested during our trip.
Students are also restarting their use of two sensors, measuring temperature, depth, and dissolved oxygen. The sensors were very kindly donated by RBR, a regular exhibitor at OCEANS. Correlating changes in the makeup of the phytoplankton community with these water characteristics is a future goal of the Phyto-Finders.
A return to the Outer Banks is tentatively planned for this fall, once school is in session. The future once again looks bright.