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Home » Research Projects » Long-Term Key Species and Biodiversity Monitoring Using Stereo-BRUVs in the iSimangaliso Marine Protected Area (2025–2029)

Long-Term Key Species and Biodiversity Monitoring Using Stereo-BRUVs in the iSimangaliso Marine Protected Area (2025–2029)

    This long-term monitoring program focuses on key species and biodiversity within the iSimangaliso Marine Protected Area (MPA). Using advanced baited remote underwater video systems (Stereo-BRUVs), the program aims to track species abundance, biomass, and biodiversity while assessing the effectiveness of management zones. The data gathered will guide adaptive conservation strategies and ensure the sustainability of marine ecosystems.

    Program Coordinator: Dr. Welly Qwabe (Ezemvelo KZN Wildlife)
    Co-Workers: Grant Smith (Sharklife Conservation Group) Angus Van Wyk (Sharklife)
    Permit: Ezemvelo Project

    Objectives

    1. Measure the abundance and biomass of key species across diverse habitats.
    2. Track seasonal and annual trends in species populations and biodiversity.
    3. Map spatial distribution and habitat preferences of key species.
    4. Assess the effectiveness of management zones in conserving biodiversity.
    5. Provide actionable data to inform adaptive management strategies.

    Why It Matters

    The iSimangaliso MPA is a global biodiversity hotspot, home to critical marine species, including sharks, rays, and demersal fishes. As these ecosystems face threats from overfishing, habitat degradation, and climate change, effective monitoring is essential to safeguard their health and resilience.

    Monitoring Sites

    The program covers a range of habitats and depths within the MPA, using:

    • Inshore Sampling Zones: Targeting photic reefs (5–40 meters).
    • Mesophotic Sampling Blocks: Monitoring deeper reefs (40–200 meters).

    Research Methods

    The monitoring program uses:

    • Stereo-BRUVs: High-resolution video systems to collect abundance and biomass data.
    • Environmental Monitoring: Regular measurements of temperature, salinity, pH, dissolved oxygen, and turbidity.
    • Long-Term Analysis: Annual reports on key species, with comprehensive biodiversity assessments every five years.

    Collaborators

    This initiative is a collaboration between Ezemvelo KZN Wildlife, Sharklife Conservation Group, and the iSimangaliso Wetland Park Authority. Together, these partners are committed to preserving the unique marine ecosystems of iSimangaliso.