Spatial variation of periphytic desmid community structure on emergent macrophytes in a tropical urban watershed

IF 1.7 4区环境科学与生态学 Q3 ECOLOGY

Aquatic Ecology Pub Date : 2023-07-06 DOI:10.1007/s10452-023-10045-7

Fabiana de Matos Costa, Carla Ferragut, Nadson Ressyé Simões, Geraldo José Peixoto Ramos, Daniela Mariano Lopes da Silva, Carlos Wallace do Nascimento Moura

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Abstract

Desmids are one of the most representative groups of algae in oligo-mesotrophic aquatic environments. They respond to environmental changes and can be used as indicators of water quality. We evaluated changes in the structure of desmid communities on emergent macrophytes in relation to environmental conditions at a spatial scale in two rivers in a tropical urban basin in the State of Bahia, Brazil. Sampling was carried out every two months for one year at five fixed stations. Changes in the desmid community structure were associated with variations in limnological conditions, which differed between the sampling stations. We observed increases in total phosphorus concentration and conductivity from upstream to downstream, which influenced the changes in desmid community structure. Desmid richness and total density were higher in urban, recreational, and more preserved areas. In conclusion, phosphorus availability associated with land use and urbanization influenced desmid community structure variability in coastal plain rivers.

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热带城市流域突发性大型植物周边植物群落结构的空间变异

Desmids是寡-中营养水生环境中最具代表性的藻类群体之一。它们对环境变化作出反应，可以用作水质指标。我们在巴西巴伊亚州的一个热带城市盆地的两条河流中，在空间尺度上评估了与环境条件相关的挺水大型植物结垢群落结构的变化。每两个月在五个固定站取样一次，为期一年。结蛋白群落结构的变化与水文条件的变化有关，水文条件在采样站之间有所不同。我们观察到总磷浓度和电导率从上游到下游的增加，这影响了结蛋白群落结构的变化。在城市、娱乐和保存更完好的地区，沙漠的丰富度和总密度更高。总之，与土地利用和城市化相关的磷有效性影响了沿海平原河流中结垢群落结构的变异性。

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来源期刊

Aquatic Ecology 环境科学-海洋与淡水生物学

CiteScore

3.90

自引率

0.00%

发文量

审稿时长

3 months

期刊介绍： Aquatic Ecology publishes timely, peer-reviewed original papers relating to the ecology of fresh, brackish, estuarine and marine environments. Papers on fundamental and applied novel research in both the field and the laboratory, including descriptive or experimental studies, will be included in the journal. Preference will be given to studies that address timely and current topics and are integrative and critical in approach. We discourage papers that describe presence and abundance of aquatic biota in local habitats as well as papers that are pure systematic. The journal provides a forum for the aquatic ecologist - limnologist and oceanologist alike- to discuss ecological issues related to processes and structures at different integration levels from individuals to populations, to communities and entire ecosystems.