Marine protected areas (MPAs) are a fundamental tool for effective marine conservation and areas beyond national jurisdiction (ABNJ) prove most challenging for their designation. Largely to blame is the currently fragmented and sector-based governance framework under the United Nations Convention on the Law of the Sea (UNCLOS, 1982). In the face of rapidly deteriorating biodiversity in ABNJ, negotiations are underway for a new international legally binding instrument (ILBI) mandated to promote the conservation and sustainable use of biodiversity beyond national jurisdiction using tools including MPAs. The Southern Ocean, however, is a uniquely governed space, with two MPAs already established in ABNJ under the Antarctic Treaty System (ATS). This article critically examines the status quo for designating MPAs under the ATS and uses the findings to reflect on how the system might interact with the new United Nations ILBI. Despite this critique, complementary synergies between the two instruments are still possible. I therefore hypothesise that Antarctic Treaty Consultative Parties (ATCPs) and members of the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) must collectively engage with the ILBI process and across instruments within the ATS, to ensure the future interplay is one of opportunity, not conflict. The article concludes with recommendations to help ATCPs and CCAMLR members more proactively and effectively engage with progressions in the international law of the sea.
Remote, high-latitude oceans can prove challenging for the designation and implementation of marine protected areas (MPAs), partly due to issues in monitoring inaccessible localities and large spatial scales. A lack of protection combined with damage from growing human activities has contributed to the degradation of some of the Earth's richest marine biodiversity and highlights the urgent need to support improved marine conservation. High-resolution satellite imagery (VHR; 0.3-0.6 m spatial resolution) provides a much-needed tool for monitoring sentinel species in remote oceans, which would strengthen current and future MPA research and monitoring programs across the globe. This perspective specifies how recent advances in VHR studies have contributed to knowledge regarding occurrence, habitat suitability, and abundance of mesopredators in the Southern Ocean. We demonstrate how knowledge gained through VHR offers a cost-effective and easily accessible method for collecting previously unobtainable data to inform a representative network of Southern Ocean MPAs, and how the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) could utilize this technology. As VHR and automated detection algorithms continue to improve, we showcase a promising opportunity to use these methods to complement current research and monitoring efforts, thus strengthening MPA efforts in the Southern Ocean and beyond.
Antarctic and Southern Ocean environments are facing increasing pressure from multiple threats. The Antarctic Treaty System regularly looks to the Scientific Committee on Antarctic Research (SCAR) for the provision of independent and objective advice based on the best available science to support decision-making, policy development and effective environmental management. The recently approved SCAR Scientific Research Programme Ant-ICON - ‘Integrated Science to Inform Antarctic and Southern Ocean Conservation‘ - facilitates and coordinates high-quality transdisciplinary research to inform the conservation and management of Antarctica, the Southern Ocean and the sub-Antarctic in the context of current and future impacts. The work of Ant-ICON focuses on three research themes examining 1) the current state and future projections of Antarctic systems, species and functions, 2) human impacts and sustainability and 3) socio-ecological approaches to Antarctic and Southern Ocean conservation, and one synthesis theme that seeks to facilitate the provision of timely scientific advice to support effective Antarctic conservation. Research outputs will address the most pressing environmental challenges facing Antarctica and offer high-quality science to policy and advisory bodies including the Antarctic Treaty Consultative Meeting, the Committee for Environmental Protection and the Scientific Committee of the Commission for the Conservation of Antarctic Marine Living Resources.
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