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By: Alyssa George
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What is Fishery?What is Overfishing?
• Fishery – An area with a large population of valuable ocean organisms.
• Overfishing – To fish to such a degree as to upset the ecological balance or cause depletion of living creatures.
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Where are the major fisheries?
• Grand Banks off Newfoundland
• Georges Bank off New England
• Monterey Canyon off California
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What is Sustainable Yield?
• Sustainable Yield – A regular amount of a renewable resource that can be harvested without reducing the future supply.
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Fisheries can maintain a sustainable yield by people not overfishing in lakes, oceans, rivers or ponds.
For example trees are being cut down to make paper. The best way is to replant the trees that were cut down so we won’t run out of trees in the future.
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What is Commercial fishing?
• Commercial fishing – is the activity of capturing fish and other seafood for commercial profit.
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Equipment used for commercial fishing
Equipment used for commercial fishing
• Harpoons
• Anchors and chains
• Crab and shrimp traps
• Bait
• Buoys and fenders
• Cutting tools
• Hooks
• Longline reels
• Rope
• Bottom fishing reels
• Gaffs
• Cutlery (knives)
Gear that the Fishermen wear
• Gloves
• Rain Gear
• Boots
• Crab and Shrimp Gear
Miscellaneous items on the boat
• Electronics
• Electronic lures
• Light sticks
• Lead Weights
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What is Aquaculture?
• Aquaculture – The practice of raising fish and other water organisms for food.
A farm but…. with fish
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Pros about aquaculture• The fish live and are
raised in artificial ponds or bays
• Salmon, catfish, and shrimp are farmed in the fish farm way (aquaculture)
Cons about aquaculture• Not the perfect solution• The artificial ponds and
bays replace their natural habitats
• Maintaining these farms can cause pollution
• Spread diseases into wild fish populations
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Fisheries powerpoint by:
Alyssa George
Special thanks to
Powerpoint 2003
and
Ms. Balogh for this project
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