You're looking at this too literally. See my decode above.

"I think what you’re seeing is the result of some really excellent resource management strategies that have increased not only the shark populations somewhat modestly but also their prey. So this is really a success story for conservation..."

"Shark" populations are increasing due to better "asset" management. There are more "sharks" going after their "prey." Sharks are also finding more prey. This is a success story.

More "sharks," due to better asset management, means they're finding more "prey." This is your "conservation."