Knife marks in sharks?

Sharks! The top predator in the ocean, but who are the true top predator now?
Humans are the main reason for the serious situation going on, sharks population is decreased by approximately 90% over the past few years. The decreasing population is really serious, but the most important thing is it give huge affect on the entire ocean. Sharks are the one who controls the ocean population in the food chain. When shark population decreases, the ones below the shark in the food chain increases, then the food pyramid is out of balance.
Then, what is the main reason for this crisis? Why are sharks dying? Sharks fin soup is a famous food in China, commonly ate during important meetings in companies and in weddings. Millions of sharks die because of sharks finning, their fins are cut off and thrown back into the ocean, to bleed to death. The main tool used for catching sharks is a method called long-lining. A line that goes on for miles in the ocean with a bait is hung every meters. Sharks, who are really intelligent in smell will eventually get caught, but they are not the only victims... Turtles and many different types of fish are also caught.
As a result, we global issues class planned to make an action project to show the awareness of the situation to people. We first studied about sharks and shark finning before we moved on to our plans. We watched movies and gathered sources to represent and show them to people. The movie we had watched left a really strong impression in me, where people are illegally shark finning, and still finning even though they know what is going on. It was also very interesting and shocking that there are like a Mafia group for the shark finning industry. The striking point of this video was when the government legalized shark finning. It also gave me an impression of how serious short term thinking is, where people think of their short term profit they will make, but not the long-term thinking about the sharks. This gave me a boost for letting the people aware of the situation. Presenting in assemblies, and in the actual action project, we will make games, food, posters and fundraising. The best part of the action project is, we are going to use environmentally friendly resources for fin sales.

Image source: http://raisingchildren.net.au