Transcript Over-fishing - Schurger

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.