Integrating larval connectivity into the marine conservation decision-making process across spatial scales

Area of Science:

• Marine Conservation
• Ecology
• Spatial Planning

Background:

• Implementing marine conservation strategies at local scales presents challenges.
• Larval dispersal connectivity is crucial for effective spatial planning but often applied at broader scales.

Purpose of the Study:

• To integrate regional and local larval dispersal connectivity for designing no-take marine reserve networks.
• To inform conservation decisions for commercially important reef species in Southeast Sulawesi, Indonesia.

Main Methods:

• Utilized biophysical larval dispersal models and remote sensing data for coral reef habitats.
• Employed Marxan software with connectivity, complemented by decision trees for local reserve boundary design.
• Incorporated stakeholder input through consensus-based workshops.

Main Results:

• Marine reserve network solutions and priority areas for protection varied significantly among the four studied species.
• Little overlap was found in the reserve network designs for different species.
• Reef quality and degradation levels were identified as critical factors influencing conservation outcomes.

Conclusions:

• Integrating multi-scale connectivity data enhances the design of marine reserve networks.
• Decision trees and stakeholder engagement are valuable tools for local-scale conservation planning.
• Reef degradation must be considered when interpreting dispersal patterns and assessing conservation benefits.