当前位置: X-MOL 学术Aquat. Ecol. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Can the use of zooplankton dormant stages from natural wetlands contribute to restoration of mined wetlands?
Aquatic Ecology ( IF 1.7 ) Pub Date : 2021-03-24 , DOI: 10.1007/s10452-021-09854-5
Daiane Vendramin , Allana Gonçalves Piu , Ana Emília Brochado Schneider , Lidiane Martins , Pedro Henrique de Oliveira Hoffmann , Elvio S. F. Medeiros , Leonardo Felipe Bairos Moreira , Leonardo Maltchik , Cristina Stenert

Wetlands are among the most diverse environments on the planet and are strongly threatened by human activities. Their restoration and/or mitigation of human impacts, therefore, relies on information that can aid to the management of impacted wetlands so that they return to a (semi-) natural state. We investigate in this study the relationship between dormant stages of zooplankton and clay removal in areas subjected to mining. We evaluate whether a gradual increase in topsoil addition from donor natural wetlands to the sediment of mined wetlands influenced the zooplankton community. Eight wetlands were sampled in the Sinos River floodplain, four natural and four mined. In the laboratory, four field sediment samples were incubated for zooplankton hatching in five treatments comprising sediments from: mined wetlands, natural wetlands, and three treatments containing mined sediments added with low (5%), medium (20%) and high (40%) quantities of sediment from natural wetlands. Hatching consisted of 61 individuals distributed across eight zooplankton taxa. Copepod nauplii were the most abundant (31.1%) followed by Epiphanes sp. (29.5%) and Ovalona glabra (16.4%). While natural wetlands provided 42.6% of the hatched zooplankton, mined wetlands had just 6.5%. Zooplankton richness and abundance were higher in natural wetland sediments compared with mined and added sediment wetlands. To some degree, the sediment soil donation from natural to mined wetlands was considered viable. As long as prior studies are performed to test the size and quality of the dormant banks present in the sediment of candidate donor wetlands, sediment from donor wetlands may aid in the establishment of a more diverse community in disturbed systems.



中文翻译:

使用天然湿地浮游动物的休眠阶段是否有助于恢复已开采的湿地?

湿地是地球上最多样化的环境之一,受到人类活动的强烈威胁。因此,它们的恢复和/或缓解对人类的影响依赖于可帮助管理受影响湿地的信息,使它们恢复到(半)自然状态。在这项研究中,我们研究了浮游动物的休眠阶段与采矿区的粘土去除之间的关系。我们评估从供体自然湿地到开采湿地沉积物的表土添加量的逐渐增加是否影响了浮游动物群落。在Sinos河洪泛区取样了8个湿地,其中4个为自然矿区,4个为矿区。在实验室中,将四种田间沉积物样本在五种处理方法中进行孵化,以进行浮游动物孵化,这些处理包括来自以下地区的沉积物:采矿湿地,天然湿地,三种含矿物质沉积物的处理方法,其中天然湿地的沉积物含量低(5%),中(20%)和高(40%)。孵化由61个个体组成,分布在八个浮游动物类群中。pe足类无节幼体最多(31.1%),其次是Epiphanes sp。(29.5%)和Ovalona glabra(16.4%)。虽然自然湿地占孵化浮游动物的42.6%,但雷湿地仅占6.5%。天然湿地沉积物中的浮游动物的丰富度和丰度高于开采和增加的沉积物湿地。从某种程度上说,从自然湿地到采矿湿地的沉积物土壤捐赠被认为是可行的。只要进行了先前的研究以测试候选供体湿地沉积物中存在的休眠库的大小和质量,来自供体湿地的沉积物就可以帮助在受干扰的系统中建立更多样化的群落。

更新日期:2021-03-25
down
wechat
bug