OCEAN
BY:
SHUN ITCHIGAWA
AQUACULTURE
• the use of agricultural techniques to breed and raise marine organisms.
• is the farming of freshwater or marine organisms.
-MONOCULTURE
-POLYCULTURE
what is the important of aquaculture? It supply commercial species to the world’s markets.
Common Aquaculture in the World
• Fish aquaculture- raising fish commercially in tanks, ponds, or ocean enclosures.
- carp, salmon, tilapia and catfish.
• Raft culture- aquaculture using floating rafts for shallow-sea farming.
-seaweeds and filtering organisms
FISH
AQUACULTURE
RAFT
CULTURE
• Shrimp Farming- raising of shrimp or prawn in tanks, ponds and ocean enclosure.
It is the second largest industry in Ecuador.
-shrimp and prawn
• Eco-friendly Aquaculture- using sewage waste, artificial upwelling to concentrate nutrients in the water.
• - oysters
SHRIMP
FARMING
ECOFRIENDLY
AQUACULTUR
E
Problem associated with
Aquaculture
• Conversion of mangrove ecosystem into agricultural sites like farms
• Pollution via accumulation of waste
• Disrupting ocean ecosystem
SALT AND
WATER
NONFISHERIES PRODUCTS:
• Salts (table salt)- is an ionic compound composed of one atom of sodium (Naˉ) and one atom of chlorine (Cl+) which is responsible in the salinity of seawater.
• (Naˉ) + (Cl+) = NaCl (table salt)
• Water- is composed of two atoms of hydrogen (Hˉ) and one atoms of oxygen (O+) bind together by hydrogen bond. • 2(Hˉ) + 1(O+) = H2O
SALT
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30% of the world’s supply sea salt is extracted and refined to produce table salt. processed commercially
Provides flavor to our daily meal.
WATER
• Sea provide vast reservoir of water when salt is removed.
• It can be used in irrigations
• Provide us a potable water
DESALINATION- process of removing salt from the sea water to produced water.
MINERAL
RESOURCES
• The oceans contain large amounts of minerals, but not all of them can be easily obtained for commercial use.
• About 60% of the world’s supply of