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WorksheetsAquaculture Quiz
Total questions: 30
Worksheet time: 15mins
How does freshwater aquaculture differ from marine aquaculture in terms of location and species cultivated?
Uses salt pans and Artemia salina
Located inland; cultivates tilapia and catfish
Uses open sea cages for sea bass
Requires high salinity levels
What environmental factors make brackish water suitable for milkfish and mangrove crabs?
Rich oxygen and plankton levels
High elevation and clay soil
Deep water and low salinity
Artificial reef structures
Compare the species cultivated in freshwater and marine aquaculture systems.
Marine uses catfish; freshwater uses sea bass
Both use mangrove crabs
Freshwater uses carps; marine uses rabbitfish
Both use tilapia
Which aquaculture environment requires careful site selection for salinity and depth?
Freshwater
Brackish
Marine
Metahaline
Analyze the suitability of rice paddies for aquaculture.
Ideal for seaweed farming
Effective for freshwater species like tilapia
Suitable for marine fish
Used for predator-prey systems
What distinguishes brackish water aquaculture from freshwater systems in terms of species and water composition?
Uses only saltwater
Uses deep lakes for catfish
Requires artificial reefs
Mixes seawater and freshwater
How does cage culture vary across fixed, floating, and submerged systems?
Only fixed cages are used in freshwater
Floating cages are used in salt pans
Each type adapts to different water conditions
Submerged cages are used for seaweed
Compare pole culture and long-line culture in terms of structure and species farmed.
Both use bamboo frames
Pole culture uses oak stakes; long-line suspends ropes
Long-line is for oysters; pole is for catfish
Both are used in freshwater ponds
What is the function of artificial reef culture in marine aquaculture?
To reduce salinity
To cultivate freshwater fish
To support biodiversity and ecosystem health
To manage predator-prey systems
How does raft culture differ from rack culture in terms of materials and species supported?
Raft uses steel racks; rack uses bamboo
Raft supports mussels; rack supports intertidal organisms
Both use floating cages
Rack culture is used in salt pans
Analyze the benefits of bottom culture for oyster farming.
Places oysters directly on seabed
Allows floating cages
Uses ropes and rafts
Requires high elevation
What distinguishes raft culture from pole culture in terms of farming technique?
Pole culture is for seaweed
Raft culture is used in freshwater
Raft uses floating ropes; pole uses stakes
Both use mesh bags
How does rack culture support intertidal organisms?
Uses floating cages
Uses bamboo rafts
Uses steel racks with mesh bags
Uses salt pans
Compare the adaptability of cage culture types to different aquatic environments.
Only fixed cages are used in marine systems
Submerged cages are used for freshwater fish
Moveable cages are used in salt pans
Floating and submerged cages adapt to salinity and depth
How does metahaline culture utilize seasonal changes for aquaculture?
Uses tidal ponds
Uses bamboo rafts
Cultivates Artemia salina in salt pans during off-season
Requires artificial reefs
What makes brackish water culture suitable for mangrove crabs?
Deep water and clay soil
Uses bamboo rafts
Rich plankton and oxygen levels
High salinity and low oxygen
Compare the flexibility of aquaculture methods in brackish water systems.
Only cage culture is used
Multiple methods like raft, pen, and tidal pond are applicable
Only bottom culture is effective
Uses only salt pans
How does water quality management affect species growth in brackish systems?
Reduces biodiversity
Increases predator-prey conflict
Enhances growth and prevents disease
Limits oxygen levels
What distinguishes metahaline culture from traditional marine aquaculture?
Uses open sea cages
Cultivates sea bass
Depends on seasonal salt pan availability
Uses bamboo rafts
Analyze the role of salinity variation in metahaline aquaculture.
Increases oxygen levels
Supports predator-prey systems
Optimizes Artemia production
Reduces fish growth
How does composite fish culture reduce competition in ponds?
Uses only predators
Uses salt pans
Combines species with varied diets
Cultivates seaweed
Compare monosex and monospecies culture in terms of management benefits.
Monosex uses predators
Monospecies reduces oxygen needs
Monosex improves growth; monospecies simplifies disease control
Both increase biodiversity
What makes air-breathing fish culture suitable for low-oxygen environments?
Requires high salinity
Uses bamboo rafts
Supports catfish that tolerate poor water quality
Uses floating cages
How does predator-prey culture maintain ecological balance?
Uses salt pans
Cultivates seaweed
Balances species like Murrel and Tilapia
Uses only herbivores
Analyze the advantages of monospecies culture in freshwater aquaculture.
Requires high salinity
Promotes predator-prey balance
Simplifies management and disease control
Increases biodiversity
What site conditions are essential for mollusk farming?
Freshwater and bamboo rafts
Salt pans and oak stakes
Salinity 15–35 ppt and depth 1–10 meters
High elevation and clay soil
Compare seaweed farming techniques across different countries.
Uses clay ponds
Uses cages and nets
Uses ropes, rafts, and stakes in coastal waters
Uses salt pans
How do Eucheuma and Gracilaria contribute to economic development?
Used in predator-prey systems
Cultivated in freshwater ponds
Cultivated for carrageenan and agar
Used for fish feed
What historical evidence supports the long-standing use of fishponds?
Introduced in modern aquaculture
Used only in marine systems
Practiced since Yin Dynasty (1400–1137 B.C.)
Originated in Ming Dynasty
Analyze the importance of site selection in fishpond culture.
Promotes predator-prey balance
Reduces oxygen levels
Determines species compatibility and water quality
Ensures biodiversity
