1. By the person who made this, also known as Mad Molly
2. IntroductionIn this slideshow you will hopefully find out
things you never knew:What is over fishingWhat causes itThe
consequencesWhat is bycatchAnimals in dangerWhat we can do
3. What causes overfishing?PEOPLE LIKEEATING FISHTOOMUCH! Yeah
Im watching you!!!!!
4. What is overfishing?Overfishing is when so many fish are
caught that thepopulation cant reproduce fast enough to replace
them.Overfishing started in the early 1950s. Since then fishnumbers
have declined.Most of the overfishing is done by big industrial
trawlers.
5. TrawlersCatch thousands of tons of fishBottom trawling is
the most destructive fishing practice in theworld as it catches
many species of seafood that are not meant tobe eaten. Trawls are
pulled along the seabed by boats and alsodestroy the seabed and
coral.After a trawler has cleared an area, it may take years for
theecosystem to even partially recover.Undiscovered species living
at the bottom of the ocean may bewiped out.
6. Fish stocks The UN estimates that 70% of the worlds fish
stock have been wiped out. Stocks might collapse by 2050
7. Animals Being Overfished. Crabs . Hump head wrass. Chilean
sea bass . Turtles. Eels. Dugongs / manatees. Flatfish. Seals.
Rockfish . Salmon. Parrotfish . Vanquita. Surgeon fish. Southern
sea otters. Tuna, especially Blue Fin Tuna.Black atbalone. All
whales . Dolphins. Sharks
8. There are billions of animals caught each year asbycatch by
large trawler boats.In 1994 scientists estimated that between
17.9-39.5million tonnes of marine animals were caught anddiscarded
as bycatch.Animals such as dolphins get stuck in nets, struggleand
die.If bycatch fish are too small they are either put backin the
ocean or made into something else e.g.fertilizer.
9. Blue Fin Tuna. One of the top animals indanger is the blue
finnedtuna. Might be extinct by 2013. It is near extinctionbecause
:1 People are destroying itshabitat2 We are overfishing itbecause
people love toeat it especially in sushi
10. Sharks. Are on the brink of extinction because:1 People
still like shark fin soup2 Overfishing is taking their main
sourceof food away from them. Take the sharks away and the
oceansdont stand a chance. They controlthe populations of many
fish. Sharks are at the top of the list ofmarine animals likely to
becomeextinct. Shark numbers have declined by 90% inthe past 30
years
11. Shark Finning. The sharks get capturedin a huge net. The
sharks are put on thedeck to have their finsand tails sawn off
whilethey are conscious. If they wriggle they areleft to die a slow
andpainful death
12. Depleted fish stocks Changes in marine food web Removal of
species Destruction of habitat The ecosystem will crumble and the
oceans will die.
13. What we can do. Ask for MSC-certified (marine stewardship
council-certified) seafood.Dont eat fish. Dont go fishing. Buy
dolphin safe tinned tuna. Sign any petitions against overfishing.
DONT EAT TUNA SUSHI.Tell others what to do. And anything else that
you might think of
14.
ReferencesWebsiteshttp://bis.gmu.edu/system/documents/8386/original/Walter%202012%20project%20Award.pdf?1333384359http://www.greenpeace.org/international/en/campains/oceans/overfishing/http://www.treehugger.com/green-food/how-bad-is-overfishing-what-can-do-to-stop-it.htmlhttp://www.ypte.org.uk/environmental/over-fishing/29#whatdonehttp://www.ehow.com/facts-5796925-effect-overfishing/ecosystem.htmlMagazinesMarine
Conservation (2009)Secrets of the sea (2001)BooksEncyclopedia of
Environment (1994)
