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Why Sea Turtles Are Washing Up on New York’s Beaches

At New York State’s only sea turtle rehabilitation center, workers are nursing a record number of sick patients back to health.

On a recent Thursday morning, Maxine Montello was at work making breakfast for 48 hungry diners.

She had a stack of numbered plastic trays, and a clipboard with a list of corresponding menu orders. Methodically, she placed each tray on a scale, cut up pieces of frozen squid and cold raw herring and added them — including heads and tails — measuring just the right amount.

Pills were hidden inside some of the fish, and Ms. Montello referred to notes about her customers. “Some of them don’t like the tails,” she said. “And Number 7 doesn’t like the squid.”

When it comes to wildlife associated with the New York region, you might think of the beaver, a rodent on the official seal of New York City; the rat, which quietly scuttles among us; or the deer, which frolics in the Bronx and on Staten Island as well as across Long Island.

The sea turtle swims under the radar. “Even people that might spend a fair amount of time on the water in the Northeast might never see a sea turtle,” said Barbara Schroeder, the sea turtle coordinator for National Oceanic and Atmospheric Administration Fisheries. “But they do use Northeast waters extensively.” Ms. Montello recently heard about one being caught and released by fishermen between the Bronx-Whitestone Bridge and Robert F. Kennedy Bridge.

The rescue center mainly sees two types of sea turtles: green and Kemp’s ridley. Both varieties generally travel north in the summer and spend winters in warmer waters down south.

Climate change has created new challenges to the turtles’ survival. Warming waters mean that “turtles and other species are expanding their normal territory,” Ms. Montello explained. “So more and more turtles are going further north.” Then, when cold weather arrives, often suddenly, the turtles are stranded. “If they travel too far north, then that migration back south is just a little bit further.”

Sea turtles are coldblooded, so when the water temperature drops, so does their body temperature. They become cold-stunned — similar to hypothermia — and go into a state of shock, washing up on beaches.

The rescue center, founded in 1996, usually treats about 30 or 40 cold-stunned sea turtles during the winter. Ms. Montello has looked at records dating back to 1980, and said this year’s numbers are concerning. “Historically, our biggest year was 2019, where we had 85 turtles strand in that short window of six to eight weeks,” Ms. Montello said. “But this year we had 95.”

Of the 95 turtles found cold-stunned this season, 48 are still alive and in the care of the rescue center. The others were either dead when they washed up or perished soon after. “Their survival is dependent on how quickly they’re found,” said Ms. Montello.

A lot is unknown about these creatures’ lives in the New York area, and much of the data comes from stranded turtles, not thriving ones. Ms. Montello’s research plans involve recording turtle behavior using customized video cameras that will be attached with suction cups to the backs of healthy turtles when they are released. “I think we’re going to capture some of the first videos of turtles underwater here in New York, specifically,” she said.

But first: Everyone’s got to eat. Feeding dozens of sea turtles requires teamwork. It takes an hour to prepare the meals — “I’m probably the fastest in town,” said Ms. Montello — and another hour or so to distribute them.

After the raw fish was loaded onto plastic trays, Victoria Gluck, a biologist on staff, carried a tray over to a turtle tank and doled out the meals with tongs, piece by piece, to the corresponding patients, whose numbers were written on their backs with nontoxic paint.

Two volunteers, Britney Dowling and Cecilia Gonzalez, used nets to keep the other hungry turtles away as Ms. Gluck placed fish in front of each turtle, ensuring that they all got their allotted share; a turtle is supposed to eat 2 percent of its body weight a day.

In the wild, sea turtles are solitary, so being in a tank alongside others in the rescue center makes some of the residents grumpy. On a whiteboard in the kitchen, the team had compiled a list of “tank bullies”: turtles known to push their tank mates or try to steal their food.

Last week, there were two different temperature-controlled tanks with elaborate filtration systems holding swarms of green sea turtles between 3 and 5 years old. Other tanks held several juvenile Kemp’s ridley sea turtles.

(There was also one gray seal pup in the facility that was estimated to be about 4 weeks old, and had been found lethargic on a beach in Southampton the day before Valentine’s Day.)

The animals that arrive with cold body temperatures are slowly brought up to a more sustainable 75 degrees. Their shells are routinely inspected and disinfected, they have blood work done, and they are placed on a scale regularly to make sure they’re gaining weight. They tend to flap their flippers angrily when pulled from the water, making a persistent, sulky slapping sound.

But with summer still months away, the priority now is for these sea turtles to be kept healthy until they can return to the depths of the ocean to lead their secretive lives.

If it’s not too busy, after the turtle breakfast is served, Ms. Montello, who is in the midst of earning a Ph.D. from the School of Marine and Atmospheric Sciences at Stony Brook University, will have her own lunch — usually a salad.

“I haven’t eaten anything from the sea since, I think, middle school,” she said. That was when she fell in love with the ocean. “I just didn’t want it to circle back that I was, you know, eating anybody’s friends.”

Category: Science

Source: NYTimes Science

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