November 11, 2020 — It’s not just the rising temperatures that should have Mainers concerned, according to experts. Kathy Mills, a scientist with the Gulf of Maine Research Institute, last week said there are major concerns for local wildlife and the economy that depends on it.

“What we’re looking at is trying to understand how species shift on the east coast,” said Mills, who specializes in ecosystem changes and how New England fisheries are impacted by climate change.

For Portland, she said, there’s “not great news” ahead in terms of the impacts climate change will have.

“Portland is dependent on lobstering and groundfish fisheries,” Mills said, “and for those species as weather warms, we expect to see declines.”

Groundfish, which includes species like cod and haddock, are expected to decline as a local economic staple, she said. Mills said this doesn’t mean the fish are necessarily in danger of dying out, but rather are being forced into deeper, colder waters, where local fishermen are likely not going to follow.

Likewise, she said GMRI expects the lobster industry to see up to a 30 percent decline in the coming years as waters continue to warm. Herring, another staple of the fishing economy, is also expected to enter a decline.

“These are not necessarily declines in the stock overall, but in the fishing footprint,” Mills said.

But while the traditional fishing staples may disappear, Mills said the warming waters may result in fish not typically seen in Maine coming up the coast from the south. For example, she said they expect to see more Atlantic mackerel, sea scallops, summer flounder, black sea bass, and squid now found in the mid-Atlantic region.

“So there is an opportunity for other commercially valuable species,” Mills said.

She said fishermen here are already seeing black sea bass and squid, and they are expected to become more abundant in the coming years.

“Another species I was surprised to see is the striped bass,” Mills said. “This is a really popular recreational species, so will that become more prominent for the needs on the waterfront?”

Part of GMRI’s role, she said, is to provide information about what species will be relevant to fisheries in the area, and what the needs of local waterfronts might be. For example, she said, perhaps Portland should brace for fewer lobster traps and counter that with more midwater trawl nets.

Read the full story at the Portland Phoenix