Aquaculture

• China has increased aquaculture production with a large footprint
• production of aquaculture surpassed wild capture in 2014
• general decrease in aquatic plants and molluscs
• crustacean aquaculture has increased as it creates a higher profit
• other invertebrate aquaculture has also increased, mainly sea cucumbers
• aquaculture has increased in popularity
• richness in aquaculture has also increased
• in land aquaculture has a large amount of fin fish
• types of aquaculture in the UK

  A) suspended cages

  B) suspended rope culture

  C) trestles

  D) direct culture in sediment

  
• what are the types of aquaculture in the uk?

  suspended cages, suspended ropes, intertidal trestles, direct culture in sediment
• suspended cages

  
• suspended cages are used for salmon farming and ocean ranching
• rope culture

  
• rope culture are ropes soaked in planktonic larvae and then grown in ocean relying on already existing nutrients
• trestle tables are used in oyster farming
• intertidal trestle tables

  
• direct culture in sediment is often for manilla clams
• direct cultures place larvae in sediment and then harvest them when they are older
• direct culture in sediment often disturbs the mudflats
• for every 1kg of feed, you get 2.1kg of salmon
• suspended culture feed often comes from other animal proteins
• tuna cultures need live feed which is bought from developing countries
• suspended cages often produce large amounts of waste which make the environment anoxic
• suspended cages can cause eutrophication
• antibiotics from fed can bioaccumulate in the fish
• sea lice can be found on culture fish
• trestle tables often have large amounts of waste
• trestle tables reduce the surrounding biodiversity
• trestle tables limits the foraging area for wading birds
• Menai muscles are verified by the MSC
• as mussel density increases, number of diversity decreases