The Environment Institute and School of Biological Sciences, University of Adelaide, Adelaide, South Australia, Australia.
Lancaster Environment Centre, Lancaster University, Lancaster, UK.
Nat Ecol Evol. 2022 Dec;6(12):1808-1817. doi: 10.1038/s41559-022-01878-w. Epub 2022 Oct 3.
The sustainability of coral reef fisheries is jeopardized by complex and interacting socio-ecological stressors that undermine their contribution to food and nutrition security. Climate change has emerged as one of the key stressors threatening coral reefs and their fish-associated services. How fish nutrient concentrations respond to warming oceans remains unclear but these responses are probably affected by both direct (metabolism and trophodynamics) and indirect (habitat and species range shifts) effects. Climate-driven coral habitat loss can cause changes in fish abundance and biomass, revealing potential winners and losers among major fisheries targets that can be predicted using ecological indicators and biological traits. A critical next step is to extend research focused on the quantity of available food (fish biomass) to also consider its nutritional quality, which is relevant to progress in the fields of food security and malnutrition. Biological traits are robust predictors of fish nutrient content and thus potentially indicate how climate-driven changes are expected to impact nutrient availability within future food webs on coral reefs. Here, we outline future research priorities and an anticipatory framework towards sustainable reef fisheries contributing to nutrition-sensitive food systems in a warming ocean.
珊瑚礁渔业的可持续性受到复杂且相互作用的社会-生态压力因素的威胁，这些因素破坏了它们对粮食和营养安全的贡献。气候变化已成为威胁珊瑚礁及其鱼类相关服务的主要压力因素之一。鱼类营养浓度如何对变暖的海洋做出响应仍不清楚，但这些响应可能受到直接（新陈代谢和营养动力学）和间接（栖息地和物种分布范围转移）效应的影响。气候驱动的珊瑚栖息地丧失会导致鱼类数量和生物量的变化，揭示了主要渔业目标中的潜在赢家和输家，可以使用生态指标和生物特征来预测这些变化。下一步的关键是将重点放在现有食物（鱼类生物量）数量的研究扩展到其营养价值，这与粮食安全和营养不良领域的进展有关。生物特征是鱼类营养含量的可靠预测因子，因此可能表明在未来珊瑚礁食物网中，气候驱动的变化将如何影响营养物质的可用性。在这里，我们概述了未来的研究重点和一个预期框架，以实现可持续的珊瑚礁渔业，为不断变暖的海洋中的营养敏感型食物系统做出贡献。
