A rare algal bloom has shut down shellfishing in Lake Tashmoo during a week where other Vineyard swimming spots were closed because of bacteria.
Seth’s Pond, the popular swimming hole in West Tisbury, has been closed to swimmers for more than a week because of high levels of enterococcus bacteria. The same bacteria led to a brief closure of Pay Beach in Oak Bluffs.
Starting Wednesday, Lake Tashmoo was closed to shellfishing because of a toxic algae bloom that some said is rare to Vineyard ponds.
It’s not July, but it seems like July. It used to be that some things that happen only began to happen in mid-summer, but not this year, no sir. Things are happening now. We can remember when the masses were blooming in the seventh month of the year, while this year, in the fifth month, they are congregating. From the Skiff avenue end of Lagoon Pond they have arrived — massive influxes of what appear to be brown clouds of death. The algae blooms are here.
Cochlodinium, the rust-colored algae bloom that has turned up in Cape Pogue and Sengekontacket Ponds, has now invaded Lagoon Pond, Martha’s Vineyard Shellfish Group director Rick Karney confirmed this week. The algae was found in the west arm of the Lagoon.
Sengekontacket Algae
The algae cochlodinium has been spotted in Sengekontacket Pond, Vineyard marine biologists confirmed last week.
The algae cochlodinium has been spotted in Sengekontacket Pond, Vineyard marine biologists confirmed.
Volunteer Edgartown shellfishermen worked the tides last week to transfer young bay scallops out of harm’s way at Cape Pogue Pond, after an algae bloom seen a year ago returned.
Cochlodinium polykrikoides, a single-cell dinoflagellate, staged a late-summer comeback in the large, pristine bay that lies north of the Dike Bridge on Chappaquiddick. The algae is not harmful to humans but can be toxic to shellfish.