Ecosystem-based management approaches for watershed conservation and geosustainability

Area of Science:

• Marine Biology
• Fisheries Science
• Game Theory

Background:

• Implementing ethical fishing tactics is challenging due to varying contributor goals and political structures in global fisheries.
• Climate-driven dynamics and geographic shifts can disrupt collaborative aquaculture and lead to overfishing.
• Nations like Canada, the US, and Mexico fish anchovies in the California Current, highlighting the need for coordinated management.

Purpose of the Study:

• To expand on prior research by using a game theoretic model to analyze sardine fisheries under different climatic conditions.
• To investigate the ecological links and their impact on fisheries management.
• To determine how cooperative fishing strategies can enhance economic and environmental outcomes.

Main Methods:

• Utilized a game theoretic model to simulate sardine fisheries.
• Incorporated ecological links, specifically the role of sardines as prey for other species.
• Analyzed fisheries management strategies under varying climatic conditions.

Main Results:

• Cooperative fishing tactics that account for the ecological role of sardines yield greater economic benefits than nation-specific harvest value.
• Maximum environmental benefit is achieved at a fishing rate slightly below the sardine Fishery Management Safe Yield.
• Ecological-based fisheries control enhances sustainability and profitability when integrated into business-applicable models.

Conclusions:

• Ecosystem-based fisheries management is essential for increasing sustainability and profits.
• Policy makers and investors must incorporate ecological considerations into fisheries models.
• Adapting to climate change requires a greater emphasis on ecosystem-based governance for viable and lucrative fisheries.