Some of the species being protected are the world's fastest shark (the mako shark), wedgefishes and guitarfishes.

受保护的物种包括世界上最快的鲨（灰鲭鲨）、圆犁头鳐科以及犁头鳐。

They argued that there was not enough evidence to show that the mako was disappearing as a result of fishing.

为没有足够的证证明灰鲭鲨正在而消失。

One conservation group said this figure could be as high as 273 million. Forty countries disagreed that the mako shark was in danger.

一家保护组织称，这个数字可能高达2.73亿。有40个国家不为灰鲭鲨面临危险。

We'll be tagging hammerhead sharks, tiger sharks and mako sharks trying to understand how they're leveraging the Gulf and their birthing, mating and full migratory patterns.

我要追踪双髻鲨，虎鲨还有灰鲭鲨，设法搞清楚它如何影响海湾，它如何出生、如何交配、如何迁徙。