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Over-fishing The pros, cons, and other information about how over-fishing affects the world. Summary • Without fish, the whole world could dramatically change • Fishermen should care because their jobs are on the line • A lot of other people should care because they eat the fish • Species like the blue fin tuna and some sharks are disappearing The Pros and Cons • Pros – When all of the fish is sold to a market or any store, people can ingest vital nutrients. • Cons – Without a lot of fish, larger fish can go hungry and that can ruin the food chain. – When there is a small number of fish, fishermen lose jobs. – After the fish are hauled on a boat, the fish have trouble replenishing their numbers. How The Fish are Used • People eat the fish after they are sold to a store or market (36 million tons a year). • Natural predators also eat the fish. Who is Affected? • The North Sea, Canada’s East Coast, and the U.S. are experiencing low amounts of fish. • Some communities that depend on fishing to meet their needs. Our Opinions • We should stop our relentless fishing. • We should also look to a more abundant species of fish as an alternative. • These fish have populations of over 1 million individual fish. • However, we should fish these alternative species carefully. Solutions and Feelings About Them • Find a booming population of fish like the veiled anglemouth (showed last slide). • Fishermen will regain jobs. • People will have a new exotic fish to eat. • But, we should fish these abundant species in small pockets, only fishing when absolutely needed. • Fishermen wouldn't like this because they probably won’t get paid as much (the usual 80 billion a year). • People will most likely have and increasing demand for the new fish. Other Information and Facts • The blue fin tuna, an over-fished species, could become extinct in a few years. • Japanese fishermen catch the blue fin more than any other country. • Many species of shark are also being over-fished. • When sharks disappear, so do scallops. • There aren’t enough sharks to eat rays and skates that eat the scallops. • Then, when the rays dig up the clams, shrimp and other shellfish’s eggs are destroyed. • All because we over-fished sharks.