Trocino Lecture 4

Question 1

Which stage involves the management, feeding, selection, and slaughtering in aquaculture?

A) Reproduction
B) Nursery
C) Seeding
D) Fattening

Answer 1

d

Question 2

What are the main characteristics that differ among production systems?

A) Type of feed used
B) Species farmed
C) Management intensity
D) All of the above

Answer 2

d

Question 3

Which water characteristic is considered when differentiating between freshwater and marine aquaculture?

A) pH levels
B) Salinity
C) Clarity
D) Flow rate

Answer 3

b

Question 4

In extensive aquaculture systems, what is typically used for feeding?

A) Natural trophic availability
B) Only aquafeed
C) Combination of aquafeed and natural food
D) Fertilization

Answer 4

a

Question 5

What is the primary oxygenation method used in intensive aquaculture systems?

A) Natural oxygenation
B) Optional aeration
C) Aeration systems and/or pure O2
D) No oxygenation needed

Answer 5

c

Question 6

Which type of aquaculture does not typically require waste water treatment?

A) Extensive
B) Semi-intensive
C) Intensive
D) None of the above

Answer 6

a

Question 7

What type of aquaculture involves using lagoons designed for fish to move with sea tides?

A) Intensive aquaculture in freshwaters
B) Extensive aquaculture in brackish waters
C) In-shore based installation for marine species
D) Water-based (sea cages) systems

Answer 7

b

Question 8

Which species are typically farmed in extensive aquaculture in brackish waters?

A) Carp and catfish
B) Salmon and trout
C) Seabass, sea bream, eels, and mullets
D) Tilapia and rainbow trout

Answer 8

c

Question 9

What is a characteristic feature of valliculture?

A) Using artificial tanks
B) Isolation of coastal water ecosystems by humans for fish production
C) Recirculating systems
D) Indoor aquaculture systems

Answer 9

b

Question 10

Which species is listed as critically endangered by the IUCN and farmed in valliculture?

A) Chelon labrosus
B) Liza aurata
C) Anguilla anguilla
D) Mugil cephalus

Answer 10

c

Question 11

What is the main method used to seed traditional valliculture systems?

A) Hatchery-produced fry
B) Artificial insemination
C) Wild fish entrance and seeding of fry
D) Genetic modification

Answer 11

c

Question 12

In extensive aquaculture in freshwaters, what is often used to stimulate the aquatic food pyramid?

A) Chemical additives
B) Cleaning and fertilizing ponds
C) Mechanical feeders
D) Antibiotics

Answer 12

b

Question 13

Which species are commonly farmed in extensive freshwater aquaculture ponds?

A) Carp, zander, pike, and catfish
B) Salmon, trout, and tilapia
C) Seabass and seabream
D) Shrimp and prawns

Answer 13

a

Question 14

What type of systems are used in intensive aquaculture in freshwaters for continuous water flow?

A) Closed recirculating systems
B) Tanks with stagnant water
C) Flow-through systems
D) Lagoons

Answer 14

c

Question 15

What is a key advantage of using recirculating aquaculture systems (RAS)?

A) Lower initial costs
B) High production per surface unit
C) Low pathogen control
D) High water requirements

Answer 15

b

Question 16

What is a common species farmed using recirculating systems in freshwater?

A) Seabass
B) Carp
C) Rainbow trout
D) Shrimp

Answer 16

c

Question 17

What type of aquaculture system holds fish in a net anchored to the bottom and maintained on the surface by a floating framework?

A) In-shore based systems
B) Sea-cages systems
C) Recirculating systems
D) Pond systems

Answer 17

b

Question 18

What is one factor to consider when selecting a site for sea-cages systems?

A) Water temperature
B) Type of feed
C) Bathymetry or site depth
D) Stocking density

Answer 18

c

Question 19

Which species are commonly farmed in sea-cages in the Mediterranean?

A) Carp and catfish
B) Seabass, seabream, and tuna
C) Trout and salmon
D) Tilapia and sturgeon

Answer 19

b

Question 20

Which type of cage is often used for farming high-value species like tuna?

A) Square floating cages
B) Circular floating cages
C) Submersible cages
D) Fixed inshore cages

Answer 20

b

Question 21

What type of impact is caused by sedimentation from organic particulates in aquaculture?

A) Geochemical processes
B) Alien species diffusion
C) Interaction with wild populations
D) Pathogen transmission

Answer 21

a

Question 22

Which is an origin of geochemical changes in aquaculture systems?

A) Use of chemicals
B) Escape of farmed species
C) Sedimentation from feces and uneaten feed
D) Diffusion of alien species

Answer 22

c

Question 23

Which is a potential impact of pathogen transmission in aquaculture?

A) Release of gametes
B) Capture of wild fry
C) Indigenous and newly introduced parasites
D) Use of wild fish

Answer 23

c

Question 24

What is one method used to mitigate the environmental impacts of aquaculture?

A) Reducing feeding rates
B) Increasing fish stocking density
C) Implementing integrated multi-trophic aquaculture (IMTA)
D) Using artificial light systems

Answer 24

c

Question 25

In IMTA, which type of species is typically used to recycle waste nutrients? A) Predatory fish B) Shellfish and algae C) Freshwater fish D) Herbivorous fish

Answer 25

b

Question 26

What type of farming system is used primarily for shellfish in Europe? A) Pond systems B) Bottom farming and floating systems C) Recirculating systems D) Sea-cages systems

Answer 26

b

Question 27

Which species are typically farmed in shellfish aquaculture? A) Oysters and mussels B) Salmon and trout C) Carp and catfish D) Seabass and seabream

Answer 27

a

Question 28

What is a common aquaculture practice for farming clams? A) Using recirculating systems B) Prefattening in lagoons C) Raising in sea-cages D) Feeding with artificial pellets

Answer 28

b

Question 29

Which farming method involves the use of longlines for shellfish? A) Bottom farming B) Raft farming C) Floating systems D) Intensive tank systems

Answer 29

c

Question 30

What is a significant advantage of aquaponics systems? A) High initial costs B) Integration of fish and plant farming C) High water requirements D) Limited species diversity

Answer 30

b

Question 31

What is the indicative surface/volume for extensive aquaculture systems? A) More than 20 ha B) Until 20 ha per basin C) 25-20,000 m3 D) Less than 1 ha

Answer 31

a

Question 32

Which type of aquaculture system uses tanks made of materials like concrete, plastic, or fiberglass? A) Extensive B) Semi-intensive C) Intensive D) Brackish water systems

Answer 32

c

Question 33

What is the typical stocking density for intensive aquaculture systems? A) Until 0.0025 kg/m3 B) Until 1 kg/m3 C) 20-30 kg/m3 D) Over 50 kg/m3

Answer 33

c

Question 34

In which type of aquaculture system is the use of drugs compulsory? A) Extensive B) Semi-intensive C) Intensive D) Valliculture

Answer 34

c

Question 35

What water supply method is typically used in semi-intensive aquaculture systems? A) Natural, differences of height or tides B) Natural or mixed C) Based on pumps D) Underground water

Answer 35

b

Question 36

Which system requires compulsory waste water treatment? A) Extensive B) Semi-intensive C) Intensive D) Traditional valliculture

Answer 36

c

Question 37

In the context of European aquaculture, what is a feature of water-based (sea cages) systems? A) Used for freshwater species B) Suitable for coastal and open waters C) Only used for shellfish farming D) Require low water quality

Answer 37

b

Question 38

Which species is commonly farmed in intensive in-shore based installations for marine species? A) Carp B) Rainbow trout C) Turbot D) Catfish

Answer 38

c Steinbutt

Question 39

What is a key factor in selecting a site for sea-cages systems? A) Proximity to urban areas B) Depth and current speed C) Availability of artificial feed D) Species diversity

Answer 39

b

Question 40

Which type of net is often used in the design of sea-cages? A) Cotton nets B) Nylon or polyamide nets C) Silk nets D) Paper nets

Answer 40

b

Question 41

What type of aquaculture system is used primarily for mussels in Europe? A) Sea-cages B) Ponds C) Longlines and rafts D) Recirculating systems

Answer 41

c

Question 42

Which aquaculture method is described by maintaining ponds to foster aquatic fauna development? A) Intensive aquaculture B) Extensive aquaculture C) Recirculating systems D) Sea-cages systems

Answer 42

b

Question 43

What is a common method used in valliculture for capturing and selecting fish? A) Using automatic feeders B) Pushing fish towards basins for collection C) Chemical sedation D) Genetic selection

Answer 43

b

Question 44

Which species is commonly farmed using in-shore based installations for marine species? A) Salmon B) Trout C) Gilthead sea bream D) Catfish

Answer 44

c

Question 45

What type of aquaculture system often involves the use of HDPE cages? A) Recirculating systems B) Extensive ponds C) Sea-cages D) Brackish water systems

Answer 45

c

Question 46

Which characteristic is important for nets used in sea-cages? A) Biodegradability B) Chemical resistance C) Elasticity D) Transparency

Answer 46

b

Question 47

Which type of species is often farmed using longlines in deeper waters? A) Shellfish B) Freshwater fish C) Marine mammals D) Herbivorous fish

Answer 47

a

Question 48

What type of farming involves growing oysters using bottom farming and raft methods? A) Aquaponics B) Integrated multi-trophic aquaculture C) Shellfish farming D) Valliculture

Answer 48

c

Question 49

What is a key feature of aquaponics systems? A) High initial costs B) Use of antibiotics C) Integration of plant and fish farming D) Limited to marine species

Answer 49

c

Question 50

Which production stage in aquaculture involves the hatchery and nursery phases? A) Fattening B) Grow-out C) Maturation and broodstock management D) Feeding

Answer 50

c

Question 51

What is one environmental impact caused by organic particulates in aquaculture? A) Geochemical processes B) Increased biodiversity C) Improved water clarity D) Reduced pathogen load

Answer 51

a

Question 52

Which impact is associated with the release of gametes from aquaculture systems? A) Sedimentation B) Pathogen transmission C) Interaction with wild populations D) Chemical contamination

Answer 52

c

Question 53

Which type of aquaculture has the lowest sedimentation impact according to the provided tables? A) Intensive shellfish farming (long lines) B) Semi-intensive shellfish farming (long lines) C) Ranching D) Intensive (fish, RAS)

Answer 53

c

Question 54

What is a major factor in the selection of a site for sea-cage aquaculture? A) Proximity to processing facilities B) Current speed and direction C) Availability of freshwater sources D) Local human population density

Answer 54

b

Question 55

Which species are typically farmed in recirculating aquaculture systems? A) Shellfish and algae B) Predatory fish and crustaceans C) Rainbow trout, catfish, and eel D) Herbivorous fish

Answer 55

c

Question 56

What type of farming system is used for integrating fish and plant farming? A) Aquaponics B) Shellfish farming C) Valliculture D) Sea-cages

Answer 56

a

Question 57

Which species is commonly farmed in intensive freshwater aquaculture systems? A) Carp B) Rainbow trout C) Seabass D) Mussels

Answer 57

b

Question 58

What is a key benefit of using recirculating aquaculture systems? A) Lower energy requirements B) High production per surface unit C) Reduced pathogen control D) Lower initial costs

Answer 58

b

Question 59

Which type of farming involves using earthen ponds in plain areas for thermophilic species? A) Intensive aquaculture B) Extensive aquaculture C) Recirculating systems D) Sea-cages systems

Answer 59

b

Question 60

What type of aquaculture system is characterized by floating cages? A) Valliculture B) Recirculating systems C) Sea-cages D) Extensive pond systems

Answer 60

c

Question 61

What is the primary use of longlines in shellfish farming? A) Feeding fish B) Suspending shellfish in deeper waters C) Creating artificial reefs D) Controlling algae growth

Answer 61

b

Question 62

Which species are commonly farmed using flow-through systems? A) Carp and catfish B) Salmon and trout C) Seabass and seabream D) Mussels and oysters

Answer 62

b

Question 63

Which type of cage is often used for in-shore fish farming? A) Submersible cages B) Fixed nets and floating platforms C) Recirculating tanks D) Earthen ponds

Answer 63

b

Question 64

What type of aquaculture system involves using high water renewal rates and biomass fractioning? A) Extensive pond systems B) Recirculating aquaculture systems C) Sea-cages D) Longline shellfish farming

Answer 64

b

Question 65

Which characteristic is crucial for the fibers used in sea-cage nets? A) Elasticity B) Chemical resistance C) Biodegradability D) High density

Answer 65

b

Question 66

Which type of aquaculture is practiced primarily in the Sacca degli Scardovari lagoon? A) Intensive fish farming B) Recirculating systems C) Shellfish farming D) Valliculture

Answer 66

c

Question 67

Which species is farmed using integrated multi-trophic aquaculture (IMTA)? A) Salmon B) Carp C) Shellfish and algae D) Trout

Answer 67

c

Question 68

What is the primary purpose of using HDPE pipes in sea-cage farming? A) Feeding fish B) Providing buoyancy and structural support C) Filtering water D) Controlling temperature

Answer 68

b

Question 69

Which type of aquaculture system uses tanks with a central position for water discharge? A) Rectangular tanks B) Circular tanks C) Square tanks D) Open ponds

Answer 69

b

Question 70

Which characteristic is important for selecting sites for sea-cage systems? A) High human population density B) Bathymetry and current speed C) Availability of terrestrial feed D) Proximity to urban areas

Answer 70

b

Question 71

What is one major environmental impact of intensive aquaculture systems? A) Increased biodiversity B) Reduced pathogen load C) Sedimentation and geochemical changes D) Improved water clarity

Answer 71

c

Question 72

Which impact is associated with the interaction of farmed and wild populations? A) Sedimentation B) Pathogen transmission C) Geochemical changes D) Alien species diffusion

Answer 72

b

Question 73

What is a common method for mitigating the environmental impacts of aquaculture? A) Increasing stocking density B) Reducing feed rates C) Implementing integrated multi-trophic aquaculture (IMTA) D) Using artificial lights

Answer 73

c

Question 74

Which species are typically included in integrated multi-trophic aquaculture (IMTA) systems? A) Predatory fish B) Shellfish and algae C) Freshwater fish D) Herbivorous fish

Answer 74

b

Question 75

What type of system is used for farming shellfish in Europe? A) Pond systems B) Bottom farming and floating systems C) Recirculating systems D) Sea-cages systems

Answer 75

b

Question 76

What is the primary benefit of aquaponics systems? A) High initial costs B) Use of antibiotics C) Integration of fish and plant farming D) Limited species diversity

Answer 76

c

Question 77

Which production stage involves hatchery and nursery phases? A) Fattening B) Grow-out C) Maturation and broodstock management D) Feeding

Answer 77

c

Question 78

What is a major factor in selecting a site for sea-cages systems? A) Proximity to processing facilities B) Current speed and direction C) Availability of freshwater sources D) Local human population density

Answer 78

b

Question 79

Which species are commonly farmed in recirculating aquaculture systems? A) Shellfish and algae B) Predatory fish and crustaceans C) Rainbow trout, catfish, and eel D) Herbivorous fish

Answer 79

c

Question 80

Which system requires the lowest water renewal rate? A) Extensive ponds B) Recirculating aquaculture systems (RAS) C) Sea-cages D) Flow-through systems

Answer 80

b

Question 81

What is a key feature of longlines used in shellfish farming? A) Feeding fish B) Suspending shellfish in deeper waters C) Creating artificial reefs D) Controlling algae growth

Answer 81

b

Question 82

Which species are commonly farmed using flow-through systems? A) Carp and catfish B) Salmon and trout C) Seabass and seabream D) Mussels and oysters

Answer 82

b

Question 83

What type of cage is often used for in-shore fish farming? A) Submersible cages B) Fixed nets and floating platforms C) Recirculating tanks D) Earthen ponds

Answer 83

b

Question 84

Which type of farming involves using high water renewal rates and biomass fractioning? A) Extensive pond systems B) Recirculating aquaculture systems C) Sea-cages D) Longline shellfish farming

Answer 84

b

Question 85

Which characteristic is crucial for the fibers used in sea-cage nets? A) Elasticity B) Chemical resistance C) Biodegradability D) High density

Answer 85

b

Question 86

What is one impact caused by sedimentation from organic particulates in aquaculture? A) Geochemical processes B) Increased biodiversity C) Improved water clarity D) Reduced pathogen load

Answer 86

a

Question 87

Which farming method uses bottom farming and raft methods for oysters? A) Aquaponics B) Integrated multi-trophic aquaculture C) Shellfish farming D) Valliculture

Answer 87

c

Question 88

What is a significant advantage of aquaponics systems? A) High initial costs B) Use of antibiotics C) Integration of plant and fish farming D) Limited to marine species

Answer 88

c

Question 89

Which type of aquaculture system is used primarily for growing mussels in Europe? A) Sea-cages B) Ponds C) Longlines and rafts D) Recirculating systems

Answer 89

c

Question 90

What type of farming involves growing oysters using bottom farming and raft methods? A) Aquaponics B) Integrated multi-trophic aquaculture C) Shellfish farming D) Valliculture

Answer 90

c

Question 91

Which production stage in aquaculture involves the hatchery and nursery phases? A) Fattening B) Grow-out C) Maturation and broodstock management D) Feeding

Answer 91

c

Question 92

What is a major environmental impact of intensive aquaculture systems? A) Increased biodiversity B) Reduced pathogen load C) Sedimentation and geochemical changes D) Improved water clarity

Answer 92

c

Question 93

Which impact is associated with the interaction of farmed and wild populations? A) Sedimentation B) Pathogen transmission C) Geochemical changes D) Alien species diffusion

Answer 93

b

Question 94

What is a common method for mitigating the environmental impacts of aquaculture? A) Increasing stocking density B) Reducing feed rates C) Implementing integrated multi-trophic aquaculture (IMTA) D) Using artificial lights

Answer 94

c

Question 95

Which species are typically included in integrated multi-trophic aquaculture (IMTA) systems? A) Predatory fish B) Shellfish and algae C) Freshwater fish D) Herbivorous fish

Answer 95

b

Question 96

What type of system is used for farming shellfish in Europe? A) Pond systems B) Bottom farming and floating systems C) Recirculating systems D) Sea-cages systems

Answer 96

b

Question 97

What is the primary benefit of aquaponics systems? A) High initial costs B) Use of antibiotics C) Integration of fish and plant farming D) Limited species diversity

Answer 97

c

Question 98

Which production stage involves hatchery and nursery phases? A) Fattening B) Grow-out C) Maturation and broodstock management D) Feeding

Answer 98

c

Question 99

What is a major factor in selecting a site for sea-cages systems? A) Proximity to processing facilities B) Current speed and direction C) Availability of freshwater sources D) Local human population density

Answer 99

b

Question 100

Which species are commonly farmed in recirculating aquaculture systems? - A) Shellfish and algae - B) Predatory fish and crustaceans - C) Rainbow trout, catfish, and eel - D) Herbivorous fish

Answer 100

c

Question 101

Which impact is primarily caused by the release of uneaten feed in aquaculture? - A) Increased biodiversity - B) Sedimentation and organic matter accumulation - C) Improved water quality - D) Reduction in water temperature

Answer 101

b

Question 102

What type of aquaculture impact involves the escape of farmed species? - A) Pathogen transmission - B) Interaction with wild populations - C) Chemical contamination - D) Sedimentation

Answer 102

b

Question 103

What environmental impact is associated with the use of Cu compounds in aquaculture? - A) Pathogen transmission - B) Chemical contamination - C) Sedimentation - D) Geochemical changes

Answer 103

b

Question 104

Which type of environmental impact results from the capture of wild fry for aquaculture? - A) Geochemical changes - B) Interaction with wild populations - C) Sedimentation - D) Chemical contamination

Answer 104

b

Question 105

What is a potential consequence of releasing farmed fish gametes into the wild? - A) Reduced water clarity - B) Enhanced biodiversity - C) Interaction with wild populations - D) Increased sedimentation

Answer 105

c

Question 106

Which type of impact is caused by N and P from excretion processes in aquaculture? - A) Sedimentation - B) Geochemical changes - C) Pathogen transmission - D) Chemical contamination

Answer 106

b

Question 107

What is a significant impact of pathogen transmission in aquaculture systems? - A) Reduced water temperature - B) Increased biodiversity - C) Interaction with wild populations - D) Enhanced sedimentation

Answer 107

c

Question 108

Which impact involves the use of disinfectants and chemotherapeutics in aquaculture? - A) Sedimentation - B) Chemical contamination - C) Interaction with wild populations - D) Geochemical changes

Answer 108

b

Question 109

What is the primary source of soluble organic matter in aquaculture systems? - A) Chemical treatments - B) Decomposing uneaten feed - C) Fish respiration - D) Predator control measures

Answer 109

b

Question 110

What environmental impact can result from the use of wild fish in aquafeed? - A) Geochemical changes - B) Pathogen transmission - C) Reduced natural fish populations - D) Enhanced sedimentation

Answer 110

c

Question 111

Which impact is associated with the release of farmed fish for restocking purposes? - A) Sedimentation - B) Chemical contamination - C) Pathogen transmission - D) Interaction with wild populations

Answer 111

d

Question 112

Which type of impact involves the exchange of parasites between farmed and wild populations? - A) Chemical contamination - B) Pathogen transmission - C) Sedimentation - D) Geochemical changes

Answer 112

b

Question 113

What is one of the origins of trace elements in aquaculture systems? - A) Fish respiration - B) Uneaten feed and feces - C) Natural water sources - D) Predator control

Answer 113

b

Question 114

What impact can result from high-density aquaculture operations in open systems? - A) Enhanced biodiversity - B) Increased pathogen load - C) Reduced sedimentation - D) Improved water quality

Answer 114

b

Question 115

Which environmental impact is intensified by the voluntary introduction of alien species in aquaculture? - A) Sedimentation - B) Geochemical changes - C) Interaction with wild populations - D) Diffusion of alien species

Answer 115

d

Question 116

What type of contamination is associated with the use of Zn compounds in aquaculture? - A) Geochemical changes - B) Chemical contamination - C) Sedimentation - D) Pathogen transmission

Answer 116

b

Question 117

Which impact is primarily caused by the use of anti-fouling treatments in aquaculture? - A) Pathogen transmission - B) Chemical contamination - C) Increased biodiversity - D) Improved water clarity

Answer 117

b

Question 118

What is a common origin of N and P contributing to geochemical changes in aquaculture? - A) Fish feeding - B) Water evaporation - C) Excretion processes - D) Predator control measures

Answer 118

c

Question 119

Which environmental impact involves the accidental introduction of parasites in aquaculture? - A) Sedimentation - B) Geochemical changes - C) Pathogen transmission - D) Chemical contamination

Answer 119

c

Question 120

What is a potential impact of predator control measures in aquaculture? - A) Increased sedimentation - B) Chemical contamination - C) Interaction with wild populations - D) Enhanced biodiversity

Answer 120

c

Question 121

What is the sedimentation impact level in intensive shellfish farming (long lines)? - A) High - B) Moderate - C) Low - D) Negligible

Answer 121

b

Question 122

What is the geochemical processes impact level in semi-intensive shellfish farming (long lines)? - A) High - B) Moderate - C) Low - D) Negligible

Answer 122

d

Question 123

How is the impact of alien species diffusion rated in ranching systems? - A) High - B) Moderate - C) Low - D) Negligible

Answer 123

c

Question 124

What is the impact level of interactions with wild species in intensive shellfish farming (long lines)? - A) High - B) Moderate - C) Low - D) Negligible

Answer 124

d

Question 125

What is the impact level of chemical use in ranching systems? - A) High - B) Moderate - C) Low - D) None

Answer 125

d

Question 126

How is the impact of pathogen transmission rated in semi-intensive shellfish farming (long lines)? - A) High - B) Moderate - C) Low - D) Negligible

Answer 126

d

Question 127

What is the impact level of fish for aquafeed in ranching systems? - A) High - B) Moderate - C) Low - D) None

Answer 127

d

Question 128

What is the sedimentation impact level in intensive fish cage systems? - A) High - B) Moderate - C) Low - D) Negligible

Answer 128

b

Question 129

How is the impact of geochemical processes rated in semi-intensive fish pond systems? - A) High - B) Moderate - C) Low - D) Negligible

Answer 129

b

Question 130

What is the impact level of alien species diffusion in extensive fish lagoon systems? - A) High - B) Moderate - C) Low - D) Negligible

Answer 130

c

Question 131

What is the impact level of interactions with wild species in intensive fish tank systems? - A) High - B) Moderate - C) Low - D) Negligible

Answer 131

b

Question 132

How is the chemical use impact rated in semi-intensive fish pond systems? - A) High - B) Moderate - C) Low - D) Negligible

Answer 132

c

Question 133

What is the impact level of pathogen transmission in extensive fish lagoon systems? - A) High - B) Moderate - C) Low - D) Negligible

Answer 133

c

Question 134

What is the impact level of fish for aquafeed in intensive fish cage systems? - A) High - B) Moderate - C) Low - D) Negligible

Answer 134

c

Question 135

What is the sedimentation impact level in intensive fish recirculating aquaculture systems (RAS)? - A) High - B) Moderate - C) Low - D) Negligible

Answer 135

d

Question 136

How is the impact of geochemical processes rated in intensive fish RAS? - A) High - B) Moderate - C) Low - D) Negligible

Answer 136

c

Question 137

What is the impact level of alien species diffusion in intensive fish RAS? - A) High - B) Moderate - C) Low - D) Negligible

Answer 137

c

Question 138

What is the impact level of interactions with wild species in intensive fish RAS? - A) High - B) Moderate - C) Low - D) Negligible

Answer 138

d

Question 139

How is the chemical use impact rated in intensive fish RAS? - A) High - B) Moderate - C) Low - D) Negligible

Answer 139

c

Question 140

What is the impact level of pathogen transmission in intensive fish RAS? - A) High - B) Moderate - C) Low - D) Negligible

Answer 140

b

Question 141

What is the impact level of fish for aquafeed in intensive fish RAS? - A) High - B) Moderate - C) Low - D) Negligible

Answer 141

a

Question 142

Which system has the lowest sedimentation impact? - A) Intensive shellfish farming (long lines) - B) Intensive fish cage systems - C) Intensive fish RAS - D) Semi-intensive fish pond systems

Answer 142

c

Question 143

Which system has the highest impact on geochemical processes? - A) Intensive shellfish farming (long lines) - B) Intensive fish cage systems - C) Intensive fish RAS - D) Semi-intensive fish pond systems

Answer 143

d

Question 144

Which system has negligible impact on interactions with wild species? - A) Intensive fish cage systems - B) Intensive fish RAS - C) Semi-intensive fish pond systems - D) Extensive fish lagoon systems

Answer 144

b

Question 145

Which system has low impact on chemical use? - A) Intensive fish cage systems - B) Semi-intensive fish pond systems - C) Intensive fish RAS - D) Intensive shellfish farming (long lines)

Answer 145

c

Question 146

Which system has a moderate impact on pathogen transmission? - A) Intensive shellfish farming (long lines) - B) Semi-intensive fish pond systems - C) Intensive fish RAS - D) Extensive fish lagoon systems

Answer 146

c

Question 147

Which system has no impact on the use of fish for aquafeed? - A) Intensive fish cage systems - B) Intensive fish RAS - C) Ranching systems - D) Semi-intensive fish pond systems

Answer 147

c

Question 148

Which system has the highest sedimentation impact? - A) Intensive shellfish farming (long lines) - B) Intensive fish cage systems - C) Intensive fish RAS - D) Semi-intensive fish pond systems

Answer 148

b

Question 149

Which system has negligible impact on alien species diffusion? - A) Intensive shellfish farming (long lines) - B) Intensive fish cage systems - C) Intensive fish RAS - D) Ranching systems

Answer 149

d

Question 150

Which system has low impact on pathogen transmission? - A) Intensive fish RAS - B) Intensive fish cage systems - C) Intensive shellfish farming (long lines) - D) Semi-intensive fish pond systems

Answer 150

c