Distribution of planktonic microcrustaceans (Cladocera and Copepoda) in lentic and lotic environments from the semiarid region in northeastern Brazil

IF 0.5 4区生物学 Q4 ZOOLOGY

Iheringia Serie Zoologia Pub Date : 2020-01-01 DOI:10.1590/1678-4766e2020002

L. P. Diniz, Cláudio S. de Morais Júnior, Íttalo Luã Silva Medeiros, A. J. Silva, Alan P. Araújo, T. Silva, M. M. Melo Júnior

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引用次数: 8

Abstract

Abstract The present study aimed to inventory the biodiversity of planktonic microcrustaceans (Cladocera and Copepoda) in 44 environments from the semiarid region of Brazil, increasing the knowledge about zooplankton community, including phytophilous species. Between 2011 and 2017, organisms were collected in a non - systematic way in the states of Rio Grande do Norte, Pernambuco, Ceará and Paraíba. A total of 60 species of planktonic microcrustaceans were identified, of which 52 were cladocerans and eight were copepods. The basin that presented the highest richness was Pajeú River with 41 species. Nevertheless, the extrapolated number of species shows an increasing tendency for this basin. The genus composition was different between the basins, with Moxotó basin (Pernambuco) being isolated from the others, probably since lagoons were the only type of environment sampled in this basin. Richness and abundance patterns were higher for the basins where sampling was mainly performed in lentic environments, such as Pajeú and Moxotó. Microcrustacean inventories and long-term studies need to be conducted more frequently to better understand the biodiversity of continental aquatic ecosystems in the semiarid region of Brazil.

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巴西东北部半干旱区水生环境中浮游微甲壳类(枝足纲和桡足纲)的分布

摘要本研究旨在调查巴西半干旱区44种环境中浮游微甲壳类(枝足纲和桡足纲)的生物多样性，以增加对浮游动物群落的认识，包括对植物的了解。2011年至2017年期间，在北里奥格兰德州、伯南布哥州、塞埃尔州和Paraíba州以非系统方式收集了生物。共发现浮游微甲壳类60种，其中枝海洋类52种，桡足类8种。丰富度最高的流域为Pajeú River，共有41种。然而，外推的物种数量在该盆地显示出增加的趋势。不同盆地的属组成不同，Moxotó盆地(Pernambuco)与其他盆地分离，可能是因为泻湖是该盆地唯一采样的环境类型。当采样主要是在较慢的环境中进行时，例如Pajeú和Moxotó，丰富度和丰度模式更高。需要更频繁地进行微甲壳类清查和长期研究，以便更好地了解巴西半干旱地区大陆水生生态系统的生物多样性。

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来源期刊

Iheringia Serie Zoologia 生物-动物学

CiteScore

1.00

自引率

0.00%

发文量

审稿时长

6-12 weeks

期刊介绍： The journal Iheringia, Série Zoologia, edited by the “Museu de Ciências Naturais” of the “Fundação Zoobotânica do Rio Grande do Sul”, publishes original research findings in zoology with emphasis on taxonomy, systematics, morphology, natural history, and community or population ecology of species from current Neotropical fauna. Scientific notes will not be accepted for publication. Species lists without a taxonomic approach, or that are not the result of studies on the ecology or natural history of communities will not normally be accepted. The same applies to identification keys of groups of taxa defined by political boundaries. Authors wishing to inquire about the scope of the journal or the suitability of a particular topic are encouraged to contact the Editorial Board prior to submission. Furthermore, articles with a main focus on agronomy, veterinary, zootechny or other areas involving applied zoology will not be accepted. Its abbreviated title is Iheringia, Sér. Zool., which should be used in bibliographies, footnotes and bibliographical references and strips.