Rust tide returns to Shinnecock and Peconic bays

While the algae is harmless to humans, it is highly toxic to both finfish and shellfish.

While the algae is harmless to humans, it is highly toxic to both finfish and shellfish. (8/22/13)

HAMPTON BAYS - A toxic algae has returned to Long Island.

Rust tide is back in Long Island's eastern waterways for the 10th year. The organism is turning the blue waters of the Shinnecock and Peconic bays a murky orange color.

While rust tide is harmless to humans, scientists say it can kill some fish in a matter of hours.

Christopher Gobler, a professor at Stony Brook University School of Marine and Atmospheric Sciences, says rust ride is an explosion of algae fed by excess nitrogen in the water. The nitrogen comes from fertilizers and septic systems.

Experts say the rust tide could stick around for another month or two until the bays' temperatures dip below 60 degrees.

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Researchers say toxic levels of rust tide can Rust tide returns to Long Island

An unwelcome and potentially hazardous sight has returned to Long Island waters. Researchers at Stony

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