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DMF presents eDNA pilot showing winter flounder presence across Cape embayments; agencies flag data gaps and request more monitoring
Summary
Massachusetts Division of Marine Fisheries described a multi‑year environmental DNA pilot that detected winter flounder DNA across sampled embayments and recommends continued monitoring to inform time‑of‑year restrictions and permit waivers for dredging.
The Massachusetts Division of Marine Fisheries (DMF) told summit attendees it has found winter flounder environmental DNA (eDNA) in multiple Cape Cod embayments and is expanding sampling and paired net surveys to better inform time‑of‑year (TOY) restrictions tied to spawning windows.
"We actually found winter flounder eDNA in all the embayments that we sampled," DMF presenter Dan McKernan said, reporting results from a multi‑year pilot that included twelve months of sampling in 2021–22 and follow‑up years with paired fyke‑net surveys.
DMF described the pilot as a step to…
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