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The Cons of Overfishing:

earth science project... interesting topic
by

Tai Garside

on 23 March 2011

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Transcript of The Cons of Overfishing:

The Cons of Overfishing Background Information: Overfishing is defined as catching too much fish
It is also when one catches fish faster than nature can replenish the fish
It is also define as a non-sustainable use of the oceans -As of 2007, 25% of the world's fish
stocks are either overexploited or depleted.
-As of 2010, over 70% of the world's fish stocks are either fully exploited or depleted. Some Facts: as of 2008 Reasons behind overfishing: advances in fishing technology in the last 50 years has contributed to overfishing.
industries now have bigger boats
bigger boats means that they can stay out at sea for weeks at a time rather than days, they can hold more fish than before and the have the resources to store, gut and freeze the fish. Fish used to be so hard to Fish used to be extreme The dangers involved with fishing more often then not, fish are caught using some kind mesh net.
when the nets "skim" the water that is known as drift netting. for the fish that hang out on the ocean floor, nets scrape the floor and catch fish that way
mesh nets, however, are getting smaller so that fishermen can catch smaller fish. they are crushed up and put into fertilizers and animal food. Dangerous to others: other species are at risk when fishermen put their nets in the water.
an estimated 100 million sharks and rays are killed every year Fishermen's nets also harm other animals such as turtles! Overfishing Today In Newfoundland, Canada the most profitable fish was cod.
in 1992, there was no more cod due to overfishing
more than 40,000 people lost their jobs
even today, the fish have not been fully replenished Bibliography Pictures:
http://eco-generation.org/activities/news/userfiles/overfishing.gif

http://www.zunal.com/myaccount/uploads/introduction_wordle.jpg

http://www.choosewisely.ae/images/world-fish-stocks-graph.gif

http://www.hickerphoto.com/data/media/164/commercial-fishing-boat_15053.jpg

http://www.teara.govt.nz/files/p6281atl.jpg

http://www.mcaorals.co.uk/Photos/Fraserburgh%20Boats/Use/201%20-%20250/images/FR-217-Drift%20net%20(2)_jpg.jpg

http://skew.dailyskew.com/uploaded_images/15B-775879.gif

http://www.smh.com.au/ffximage/2006/04/24/Turtle_dead_3_wideweb__470x309,2.jpg

http://www.huntfishcampwisconsin.com/nfmap.gif

Websites:

http://www.america.gov/st/washfile-english/2007/January/20070129115024mlenuhret0.1799127.html

http://overfishing.org/pages/why_is_overfishing_a_problem.php

http://overfishing.org/pages/what_is_overfishing.php

http://www.ypte.org.uk/environmental/over-fishing/29

http://www.greenpeace.org/international/en/campaigns/oceans/overfishing/

http://animal.discovery.com/guides/endangered/fish/overfishing-consumer-guide.html
Full transcript