November 15, 2022 — Usually during November, veteran scalloper Chris Tehan would be on the Peconics — his boat dredging for the prized mollusk living in the pair of bays squeezed between Long Island’s North Fork and South Fork.
But in 2022, Tehan is hardly finding any because the Peconic scallop population is crashing. Scientists blame the climate crisis, but they’re also hopeful the marine animal could be saved before the fishing community goes bust.
This year represents the fourth in a row of record die-offs for Peconic Bay scallops. Their population density has dropped more than 90% since 2018, according to new survey data from the Cornell Cooperative Extension of Suffolk County that is yet to be published.
“We monitor 21 different sites. And in total, we found only 19 adult scallops in those 21 surveys,” said Harrison Tobi, an aquaculture specialist who helped lead the study. Recent counts have been so low that the federal government issued a disaster declaration in 2021 promising federal relief to the fishery.
Tobi said climate change-induced warmer waters are causing better conditions for a parasite that harms the scallops and impedes their reproduction. He added that Peconic scallops are essential to the bay’s ecosystem, given their position in the food web and their ability to filter algae and bacteria from the water.