Adjusting the management of the Antarctic krill fishery to meet the challenges of the 21st century

• 成果类型: Article
• 署名作者: Meyer, Bettina; Arata, Javier A.; Atkinson, Angus; Bahlburg, Dominik; Bernard, Kim; Cardenas, Cesar A.; Grant, Susie M.; Hill, Simeon L.; Huppe, Lukas; Ichii, Taro; Kawaguchi, So; Krafft, Bjorn A.; Labrousse, Sara; Maschette, Dale; Pinones, Andrea; Reiss, Christian; Siebenhuner, Bernd; Sylvester, Zephyr; Ziegler, Philippe
• 署名单位: Helmholtz Association; Alfred Wegener Institute, Helmholtz Centre for Polar & Marine Research; Carl von Ossietzky Universitat Oldenburg; Carl von Ossietzky Universitat Oldenburg; Oregon State University; UK Research & Innovation (UKRI); Natural Environment Research Council (NERC); NERC British Antarctic Survey; University of Wurzburg; Australian Antarctic Division; University of Tasmania; University of Tasmania; Institute of Marine Research - Norway; Institut de Recherche pour le Developpement (IRD); Universite Paris Saclay; Museum National d'Histoire Naturelle (MNHN); Centre National de la Recherche Scientifique (CNRS); CNRS - National Institute for Earth Sciences & Astronomy (INSU); Sorbonne Universite; Universidad Austral de Chile; Universidad de Concepcion; Carl von Ossietzky Universitat Oldenburg; Nelson Mandela University; University of Colorado System; University of Colorado Boulder
• 刊物名称: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
• ISSN/ISSBN: 0027-13764
• DOI: 10.1073/pnas.2412624122
• 发表日期: 2025-09-16
• 关键词: euphausia-superba; DYNAMICS

摘要

Antarctic krill (Euphausiasuperba) is the central prey species in the Southern Ocean food web, supporting the largest and fastest-growing fishery in the region, managed by the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR). Climate change is threatening krill populations and their predators, while current catch limits do not take into account climate variability or krill population dynamics. In 2024, CCAMLR was unable to renew its spatial catch limits, highlighting the urgent need for improved management of the krill fishery to prevent any harm to the Southern Ocean ecosystem. To address this, we propose a management framework that integrates variability in krill recruitment and key pathways between spawning and nursery areas-a krill stock hypothesis-to inform decisions on catch limits and conservation measures. Implementing this approach will require targeted data collection, which we propose can be achieved through a multisector collaborative network that combines traditional and new technologies, including the use of fishing vessels as data collection platforms. We use case studies to demonstrate how fisheries can contribute to data collection while promoting sustainable management. A major challenge in this effort is securing long-term funding for data collection, which is critical for managing climate-sensitive populations of high commercial interest. We therefore recommend using the industry as a source of funding, research platform and data provider, alongside national research funding opportunities. Given the fundamental role of krill in the Southern Ocean ecosystem, its decline would have cascading effects on predators and essential ecosystem services.