Why aquaculture may not conserve wild fish

Area of Science:

• Ecology
• Environmental Economics
• Fisheries Science

Background:

• Aquaculture's rise presents potential benefits but also risks to wild fisheries.
• The Jevons paradox describes how efficiency gains can increase consumption, hindering conservation.
• The displacement paradox notes that substitutes may not reduce consumption of the original resource proportionally.

Purpose of the Study:

• To review literature on the displacement and Jevons paradoxes.
• To analyze their implications for aquaculture's impact on wild fisheries.
• To provide theoretical explanations for these paradoxes in fisheries and aquaculture systems.

Main Methods:

• Literature review of the displacement and Jevons paradoxes.
• Theoretical analysis drawing on the tragedy of the commodity.
• Examination of aquaculture's role in fisheries conservation.

Main Results:

• The Jevons paradox suggests efficiency in aquaculture may increase overall fish consumption.
• The displacement paradox indicates farmed fish may not significantly reduce wild fish consumption.
• These paradoxes can lead to unintended negative consequences for wild fisheries conservation.

Conclusions:

• Aquaculture development may have unforeseen detrimental effects on wild fisheries.
• Understanding these paradoxes is crucial for sustainable fisheries and aquaculture management.
• The tragedy of the commodity framework helps explain these paradoxical outcomes.