A comparison of seasonal variability of Arabian Gulf and the Sea of Oman pelagic ecosystems

IF 0.8 4区 环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES Aquatic Ecosystem Health & Management Pub Date : 2019-04-03 DOI:10.1080/14634988.2019.1621133
S. Piontkovski, W. Hamza, Nader M. Al-Abri, Saud S. Al-Busaidi, K. Al-Hashmi
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引用次数: 4

Abstract

This overview compares algal blooms and pelagic fisheries of the Arabian Gulf with the Sea of Oman. The data consist of remotely sensed characteristics, directly sampled and modeled. Elucidated seasonal trends were based on 15-year seasonal means, as well as weekly time series of physical parameters. The environmental characteristics (namely photosynthetically available radiation, atmospheric pressure, temperature, wind, aerosol optical thickness, surface currents, surface temperature, salinity, concentration of dissolved oxygen, nitrates, phosphates, chlorophyll-a, net primary production, phytoplankton, zooplankton biomass, fish larvae abundance, small and large pelagic fish catches) were compared between regions. In Sea of Oman, high concentrations of chlorophyll-a were associated with relatively high concentrations of nitrates and phosphates, as well as kinetic energy of surface currents which exceeded that in Arabian Gulf. The dinoflagellate Noctiluca scintillans is one dominat alga in the Sea of Oman, whereas diatom species are more common in the Arabian Gulf blooms. In general, the phytoplankton and zooplankton species diversity during winter was higher than in summer periods. Catches of small pelagic fish (in particular sardines) in the Sea of Oman exceeded that in the Arabian Gulf. This might be associated, in part, with differences in trophic levels interactions. The turnover rate of the net primary production through zooplankton in Sea of Oman was found to be much higher than in Arabian Gulf waters.
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阿拉伯湾和阿曼海上层生态系统季节变化的比较
本概述比较了阿拉伯湾和阿曼海的藻华和中上层渔业。数据由直接采样和建模的遥感特征组成。阐明的季节趋势是基于15年的季节平均值以及物理参数的每周时间序列。环境特征(即光合有效辐射、大气压力、温度、风、气溶胶光学厚度、地表流、地表温度、盐度、溶解氧浓度、硝酸盐、磷酸盐、叶绿素a、净初级生产力、浮游植物、浮游动物生物量、鱼类幼虫丰度、小型和大型远洋鱼类捕获量)区域之间的比较。在阿曼海,高浓度的叶绿素a与相对高浓度的硝酸盐和磷酸盐以及超过阿拉伯湾的地表流动能有关。甲藻夜光藻是阿曼海的主要藻类之一,而硅藻在阿拉伯湾水华中更为常见。总体而言,冬季浮游植物和浮游动物的物种多样性高于夏季。阿曼海的小型中上层鱼类(特别是沙丁鱼)捕捞量超过了阿拉伯湾。这在一定程度上可能与营养级相互作用的差异有关。阿曼海浮游动物净初级生产力的周转率远高于阿拉伯湾水域。
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来源期刊
Aquatic Ecosystem Health & Management
Aquatic Ecosystem Health & Management 环境科学-海洋与淡水生物学
CiteScore
1.70
自引率
0.00%
发文量
1
审稿时长
18-36 weeks
期刊介绍: The journal publishes articles on the following themes and topics: • Original articles focusing on ecosystem-based sciences, ecosystem health and management of marine and aquatic ecosystems • Reviews, invited perspectives and keynote contributions from conferences • Special issues on important emerging topics, themes, and ecosystems (climate change, invasive species, HABs, risk assessment, models)
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