Aquaculture Methods and Environmental Impact

Seafood is a crucial protein source for billions, but overfishing and unsustainable aquaculture practices pose significant challenges. While aquaculture is growing rapidly, it often mirrors the issues seen in industrial agriculture, such as pollution and disease spread. Innovative solutions like land-based systems and restorative ocean farming offer hope for sustainable practices. These methods can improve water quality, combat climate change, and support local communities. By focusing on lower food chain species like shellfish and seaweeds, aquaculture can become more sustainable and beneficial for the environment.

What percentage of wild fisheries are currently overfished according to recent studies?

• 10%

• 33%

• 50%

• 75%

Which aquaculture method involves using large pens made of nets?

• Net pens

• Raceways

• Coastal ponds

• Tanks

What is a major environmental concern associated with net pens?

• They do not produce enough fish.

• They are too expensive to maintain.

• They produce excessive waste.

• They require too much land.

What is a significant challenge faced by land-based aquaculture systems?

• High cost of antibiotics

• Lack of water filtration

• Dependence on fishmeal

• Limited space availability

What alternative fish feed are researchers currently exploring?

• Recycled fish waste

• Synthetic proteins

• Insects and plant-based proteins

• Genetically modified algae

What is a key benefit of farming shellfish and seaweed?

• They are more profitable.

• They grow faster than fish.

• They need less space.

• They require no feeding.

How do shellfish and seaweed farms help combat climate change?

• By reducing water usage

• By absorbing carbon through photosynthesis

• By using renewable energy

• By increasing fish populations

What is the potential production of seaweed and shellfish from 4,000 square meters of ocean in 5 months?

• 30 tons of seaweed and 300,000 shellfish

• 25 tons of seaweed and 250,000 shellfish

• 15 tons of seaweed and 150,000 shellfish

• 10 tons of seaweed and 100,000 shellfish

What is a potential benefit of shifting to restorative ocean farming?

• It requires more antibiotics.

• It increases the carbon footprint.

• It decreases biodiversity.

• It provides jobs for coastal communities.

What is the ultimate goal of regenerative ocean farming?

• To help our oceans, climate, and ourselves

• To reduce the cost of seafood

• To increase fish production

• To eliminate the need for aquaculture