Animals Make a Difference Response

Overfishing is depleting many fish populations, and because of fishers’ preferences for large predator fish and practices that favor the removal of large predator fish, the fish population is starting to become small fish over larger. 

Studies show that with fewer big fish, there is less carbon stored in the ocean which can really impact our climate. "The less fish there are, means less net uptake of atmospheric carbon dioxide by surface waters and more greenhouse gases to warm the atmosphere."
http://blogs.nicholas.duke.edu/thegreengrok/animals-make-a-difference/

A Tug Would Be Thrilling: Where Are the Fish? Response

This article talks about how studies project  that the planned construction of several hydropower dams on the Mekong’s main stem and major tributaries  will result in a considerable reduction in the fish harvest, jeopardizing the food source of millions of rural people. Fishing is a big part of how people all over the world feed themselves, and without it, there will be a huge surplus of food. 


Just like everything, too much of it can be a bad thing. It used to be that fishing was done for feeding purposes, but is has become people's pass times and hobbies. It is possible that we are slowly killing the fish, not just by fishing them, but by constructing hydropower dams. It seems like we can never win. We build dams to provide water for domestic, industry and irrigation purposes, but by having those things,we're giving up other resources as well. 

http://green.blogs.nytimes.com/2013/02/28/a-tug-would-be-thrilling-where-are-the-fish/