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Hint
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Answer
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Fish group A (2)
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Salmon, Trout
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Fish A profiles
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High Oxygen
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Fish A profiles
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Cool temperatures
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Fish A profiles
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Carnivores
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Fish A profiles
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IMTA
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Fish A profiles
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Polyculture predators
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Fish group B (2)
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Carp, Tilapia
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Fish B profiles
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Low Oxygen
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Fish B profiles
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Warm temperatures
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Fish B profiles
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Herbivores
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Fish B profiles
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Aquaponics
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Fish B profiles
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Polyculture non-competitors
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Warmer temperatures increase...
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Metabolic rates
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Warmer temperatures increase...
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Growth
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Warmer temperatures decrease...
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Dissolved oxygen
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Increasing dissolved oxygen
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Lower temperatures
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Increasing dissolved oxygen
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Lower stocking density
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Increasing dissolved oxygen
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Food waste removal
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Increasing dissolved oxygen
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Faeces removal
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Increasing dissolved oxygen
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Aeration
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Increasing dissolved oxygen
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Water sprays
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Increasing dissolved oxygen
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Weirs
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Some farms _______ ______ _______ to _____ ______ and increase _____
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Artificially extend daylength, delay maturity, growth
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Water fish swim...
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Against flow direction
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Circular tanks reduce...
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Collisions
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Circular tanks allow...
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High stocking density
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Circular tanks maintain...
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High yields
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Collisions cause...
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Injuries
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Collisions cause...
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Infections
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Species selection factors
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Local conditions
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Species selection factors
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Species adaptations
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Species selection factors
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Market demand
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Market demands
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Carnivores in MEDCs
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Market demands
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Herbivores in LEDCs
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Herbivore food
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Naturally occuring algae/plants
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Herbivore food
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Plant nutrients
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Herbivore food
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Crop waste
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Carnivore food
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Fishmeal pellets of lower economic value fish
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Disease control
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Circulating tanks
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Disease control
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Water flow from old to young
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Disease control
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Lower stocking density
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Desireable characteristics
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Rapid growth
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Desireable characteristics
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Disease resistance
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Desireable characteristics (2)
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Appearance, flavour
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Gender control
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Young treated with hormones
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_________ _____ fish treated with _________ are _________ _____ producing sperm, but __ chromosomes only produce _____ ______
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Genetically female, testosterone, functioning males, XX, female offspring
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Rainbow trout:
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Females have better flavour
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Tilapia:
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Males are more energy efficient
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Triploid fish
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High pressure or temperatures cause eggs to retain a chromosome it would normally expel
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Intensive systems prioritise
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Productivity
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Intensive systems prioritise
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Profitability
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Polyculture examples
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Non-competitors
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Polyculture examples
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Larger predators prevent over reproduction
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Polyculture examples
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Bottom feeders resuspend nutrients
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Polyculture examples
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Wrasse eat lice
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IMTA features
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Fed aquaculture
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IMTA features
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Inorganic extractive
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IMTA features
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Organic extractive
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______ ____ and ______ ____ fall to ____ ______
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Organic waste, uneaten food, filter feeders
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_________ absorb _______ and _________ from decomposition
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Macroalgae, ammonia, phosphates
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Fed aquaculture example (2)
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Salmon, shrimp
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Aquaponics
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Circulates water between hydroponics and aquaculture systems
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Aquaculture provides...
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Organic matter
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Aquaculture provides...
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Inorganic nutrients
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Crops reduce...
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Nutrients that would cause deoxygenation
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Fish farm location impacts
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Habitat destruction
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Fishmeal overfishing caused...
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Predator decline
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Fishmeal species
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Sandeel
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Predator species
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Puffins
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Overfishing controls
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Herbivore cultivation
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Overfishing controls
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Plant-based pellets
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Plant-based diets may reduce
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Flavour
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Predator controls
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Culling
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Predator controls
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Decoys
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Predator controls
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Netting
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Antibiotic resistant bacteria controls
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Lower stocking density
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Parasitic lice reduce...
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Fish growth
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Parasitic lice increase...
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Risk of infections
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Lice controls
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Pesticides
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Lice controls
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Wrasse
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Pesticide controls
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BCA
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Pesticide controls
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Mechanical cage cleaning
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Pesticide controls
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Pesticide choice
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Organochlorides :(
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B+B
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Organophosphates :)
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Low persistance
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Organophosphates :)
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Low B+B
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Pyrethroids :(
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High fish toxicity
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Neonicotinoids :(
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Water soluble
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Neonicotinoids :(
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Relatively persistant
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Organic waste impacts
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Deoxygenation
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Organic waste impacts
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Eutrophication
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Organic waste controls
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Avoid over-feeding
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Organic waste controls
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Bacteria in reed beds
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Organic waste controls
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Location where currents disperse
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Escapee controls
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Cage design
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Escapee controls
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Triploid fish
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Escapee controls
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Species selection
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_________ ______ cannot breed in the UK because it is too ___
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Japanese oysters, cold
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