Tuna Fish are now being reported to be less endangered. Their numbers are growing. This is both good and bad. Simply put, once they are at their normal numbers (what ever that means), they will be hunted again. Tuna is a very popular food!
As for the sharks, this one is surprising to me. I had no idea they were on the endangered list. I am not sure which sharks they are talking about though. But if a predator becomes endangered, then the prey begin to grow out of normal food chain standards. This is something that has happened many times with different animal species around the world. Human interference is a huge factor in these causes. But sadly, very few pay attention.
Here is the article: