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Fishing Regulator Rejects Lifting Ban on Female Crab Harvest

A fisheries regulator on Thursday unexpectedly extended a ban on harvesting female horseshoe crabs from the Delaware Bay to help protect a vital food source for the red knot, a threatened shorebird that migrates via the bay’s beaches.

A board at the Atlantic States Marine Fisheries Commission voted to maintain a decade-old zero-quota on female crabs at a closely watched meeting that set next year’s crab catch by the fishing industry in New Jersey, Delaware, Maryland and Virginia.

The decision rejected a plan that would have allowed the industry to catch about 150,000 female crabs in 2023, the first proposed female harvest in 10 years.

The plan had been attacked by conservationists who argued that resuming the female harvest would further reduce food for the red knot and other migrating shorebirds that depend on the bay’s crab eggs to complete a long-distance flight each spring from South America to breeding grounds in the Canadian Arctic.

In 2021, the commission proposed restarting the 2023 harvest, saying that the bay’s population of female crabs had more than doubled to about 11 million. The planned catch of female crabs would represent less than 2 percent of the population and so would damage neither crabs nor birds, the commission argued in its proposal.

On Thursday, it recognized the birds’ dependence on crab eggs, and the board set a harvest limit of 475,000 male-only horseshoe crabs for the 2023 season.

Conservationists welcomed the decision, saying that it would improve prospects for the knot’s survival and for other shorebirds including the semipalmated sandpiper and the ruddy turnstone, whose numbers have also suffered from the crab harvest over the last 20 years.

“We are grateful that the commission listened to the public and did not authorize a harvest that would put the red knot at even greater risk and further deplete the Delaware Bay ecosystem,” said Ben Levitan, an attorney for Earthjustice, a nonprofit law firm representing conservation groups that had criticized the commission’s plan.

Mr. Levitan urged the commission to disclose the details of its computer modeling if it revisited the female harvest.

“Going forward, the commission should allow full public involvement and respond to scientific critiques before any harvest expansion is again considered,” he said.

Allowing female crabs to be harvested again would have accelerated the knots’ path toward extinction, said Christian Hunt of the advocacy group Defenders of Wildlife. “Red knots depend on horseshoe crab eggs during their long migration. With fewer eggs, there will be fewer birds,” he said.

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