Ecosystem responses to biogeochemical fronts in the South Brazil Bight
Ecosystem responses to biogeochemical fronts in the South Brazil Bight
复制标题
南巴西湾生态系统对生物地球化学前沿的响应
DOI：
10.1016/j.pocean.2018.04.012
复制
发表时间：
2018
影响因子：
4.1
通讯作者：
P. P. Santos
中科院分区：
文献类型：
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作者：
F. Brandini;P. Tura;P. P. Santos
在这里，我们描述了一般的水文学在巴西南部湾（23-28°S），重点是锋面过程及其在区域陆架生态系统的结构和功能的作用。生态系统动力学前沿的关键作用之一是将营养物质注入透光层，增加初级生产力。锋面系统也影响浮游生物的生物多样性和渔业。在这一地区的锋生背后的物理机制是类似的大洋盆地的西侧，其规模和季节动态，但是，可能会有所不同，由于特殊性在大陆架形态，风场，潮汐环流和大陆排水。在这里，我们提供了一个重新评估的早期和最近的生态和水文研究，以更好地评估的空间和时间动态的前线及其区域生态影响。虽然在一个支离破碎的方式，我们给出了一个更详细的概念框架，生态系统的复杂的锋面系统在巴西南部湾的反应。
Here we described the general hydrography in the South Brazil Bight (23–28°S) with emphasis on frontal processes and their role in the structure and functioning of the regional shelf ecosystem. One of the key roles of fronts for ecosystem dynamics is the injection of nutrients into the euphotic zone increasing primary production. Frontal systems also affect plankton biodiversity and fisheries. Physical mechanisms behind frontogenesis in this region are similar in the analogous western side of oceanic basins; their magnitude and seasonal dynamics, however, may differ due to peculiarities in shelf morphology, wind field, tidal circulation and continental drainage. Here we provide a reassessment of earlier and recent ecological and hydrographic studies for a better evaluation of the spatial and temporal dynamics of fronts and their regional ecological implications. Albeit in a fragmented manner, we give a more detailed conceptual framework about the ecosystem responses to the complex frontal system in the South Brazil Bight.