I love finding out new research studies about the ocean. Just recently at sciencedaily.com there was an interesting article about how over the past 100 years, larger fish have declined in numbers while smaller fish have increased in numbers. So I sat down in a comfy chair, grabbed a couple of mini cheesecakes and read some more.
It appears that scientists are blaming overfishing to the cause of the larger fish disappearing and when those fish disappeared, the smaller fish thrived. This they estimate will contribute to the end of many larger fish like tuna.
If you get a chance, pop on over to the science daily website and read some of the interesting articles they have on marine biology.