Instituto de Investigaciones Marinas y Costeras (IIMyC), FCEyN, UNMdP-CONICET, CC1260, 7600, Mar del Plata, Argentina.
Grupo de Estudio de Agroecosistemas y Paisajes Rurales (GEAP), Facultad de Ciencias Agrarias of the Universidad Nacional de Mar del Plata, Road 226 km 73.5, 7620, Balcarce, Argentina.
Ambio. 2020 Feb;49(2):541-556. doi: 10.1007/s13280-019-01222-w. Epub 2019 Jul 12.
Primary production hotspots in the marine environment occur where the combination of light, turbulence, temperature and nutrients makes the proliferation of phytoplankton possible. Satellite-derived surface chlorophyll-a distributions indicate that these conditions are frequently associated with sharp water mass transitions named "marine fronts". Given the link between primary production, consumers and ecosystem functions, marine fronts could play a key role in the production of ecosystem services (ES). Using the shelf break front in the Argentine Sea as a study case, we show that the high primary production found in the front is the main ecological feature that supports the production of tangible (fisheries) and intangible (recreation, regulation of atmospheric gases) marine ES and the reason why the provision of ES in the Argentine Sea concentrates there. This information provides support to satellite chlorophyll as a good indicator of multiple marine ES. We suggest that marine fronts could be considered as marine ES hot spots.
海洋环境中的初级生产热点出现在光、湍流、温度和营养物质的组合使浮游植物大量繁殖成为可能的地方。卫星衍生的表层叶绿素 a 分布表明，这些条件通常与被称为“海洋锋面”的急剧水团过渡有关。鉴于初级生产、消费者和生态系统功能之间的联系，海洋锋面可能在生态系统服务（ES）的产生中发挥关键作用。利用阿根廷海的陆架断裂锋作为研究案例，我们表明，锋面处的高初级生产是支持有形（渔业）和无形（娱乐、大气气体调节）海洋 ES 生产的主要生态特征，也是阿根廷海 ES 供应集中在那里的原因。这些信息为卫星叶绿素作为多种海洋 ES 的良好指标提供了支持。我们建议将海洋锋面视为海洋 ES 热点。
