‘Ban on shark fin might not help species’

September 24, 2017 09:33 pm | Updated 09:34 pm IST - Portland

A blacktip shark is seen in this undated handout image released to Reuters October 10, 2008. Scientists using DNA testing have confirmed the second-known instance of "virgin birth" in a shark--a female of this species named Tidbit that produced a baby without a male shark. The shark died after being removed from the tank at a Virginia aquarium for a veterinary examination, and a subsequent necropsy revealed that Tidbit was carrying a fully developed shark pup nearly ready to be born. Virgin birth, known scientifically as parthenogenesis, also has been documented in Komodo dragons, snakes, birds, bony fish and amphibians.   REUTERS/Matthew D. Potenski-Handout (UNITED STATES)  .  NO SALES. NO ARCHIVES. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. MAGAZINES OUT. NOT FOR SALE TO MAGAZINE PUBLISHERS.

A blacktip shark is seen in this undated handout image released to Reuters October 10, 2008. Scientists using DNA testing have confirmed the second-known instance of "virgin birth" in a shark--a female of this species named Tidbit that produced a baby without a male shark. The shark died after being removed from the tank at a Virginia aquarium for a veterinary examination, and a subsequent necropsy revealed that Tidbit was carrying a fully developed shark pup nearly ready to be born. Virgin birth, known scientifically as parthenogenesis, also has been documented in Komodo dragons, snakes, birds, bony fish and amphibians. REUTERS/Matthew D. Potenski-Handout (UNITED STATES)  . NO SALES. NO ARCHIVES. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. MAGAZINES OUT. NOT FOR SALE TO MAGAZINE PUBLISHERS.

As lawmakers propose banning the sale of shark fins in the U.S., a pair of scientists is pushing back, saying the effort might actually harm attempts to conserve the marine predators.

Democratic Sen. Cory Booker of New Jersey introduced a bill this year designed to prevent people from possessing or selling shark fins in America, much to the delight of conservation groups such as Oceana. But marine scientists like David Shiffman and Robert Hueter said this approach could be headed in the wrong direction.

Shiffman and Hueter authored a study that appears in the November issue of the journal Marine Policy, saying that the U.S. has long been a leader in shark fisheries management and that shutting down the U.S. fin trade entirely would remove a model for sustainability for the rest of the world.

The U.S. is a minor contributor to the worldwide shark fin trade, and countries with less regulated fisheries may step in to fill the void if U.S.left the business altogether, Shiffman said.

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