The vicinity of reservoirs and type of environment contribute to the occurrence of an exotic cladoceran, Daphnia lumholtzi (Sars, 1885), in a Neotropical drainage basin
Ariadine H. Nunes, Tatiane Mantovano, Clemerson R. Pedroso, Gabriela N. Tanaka dos Santos, Claudia C. Bonecker
{"title":"The vicinity of reservoirs and type of environment contribute to the occurrence of an exotic cladoceran, Daphnia lumholtzi (Sars, 1885), in a Neotropical drainage basin","authors":"Ariadine H. Nunes, Tatiane Mantovano, Clemerson R. Pedroso, Gabriela N. Tanaka dos Santos, Claudia C. Bonecker","doi":"10.1002/iroh.202002069","DOIUrl":null,"url":null,"abstract":"<p>Biological invasions are one of the major threats to the integrity of aquatic ecosystems worldwide. We examined the influence of reservoirs, availability of food resources, abiotic resistance, and biotic resistance on the distribution of <i>Daphnia lumholtzi</i>, a non-native cladoceran that is spreading through habitats in the upper Paraná River basin, Brazil. We sampled 48 sites distributed in four habitat types: reservoirs, lakes, tributaries, and the main river. <i>D. lumholtzi</i> densities were higher in reservoirs than in other habitat types (lentic and lotic). We found a significant correlation between a higher density of <i>D. lumholtzi</i> and the distance from reservoirs to the other sampling points. Additionally, a relationship between <i>D. lumholtzi</i> and types of environments was noted. It is known that cladocerans, including <i>D. lumholtzi</i>, have a reduced swimming ability, which makes it difficult for them to overcome currents and consequently establish or maintain large populations in lotic environments. Further research is needed to identify other factors responsible for the species' occurrence in this system and to determine the possible effects this species may have on the native community.</p>","PeriodicalId":54928,"journal":{"name":"International Review of Hydrobiology","volume":null,"pages":null},"PeriodicalIF":0.9000,"publicationDate":"2021-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/iroh.202002069","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Review of Hydrobiology","FirstCategoryId":"99","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/iroh.202002069","RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MARINE & FRESHWATER BIOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Biological invasions are one of the major threats to the integrity of aquatic ecosystems worldwide. We examined the influence of reservoirs, availability of food resources, abiotic resistance, and biotic resistance on the distribution of Daphnia lumholtzi, a non-native cladoceran that is spreading through habitats in the upper Paraná River basin, Brazil. We sampled 48 sites distributed in four habitat types: reservoirs, lakes, tributaries, and the main river. D. lumholtzi densities were higher in reservoirs than in other habitat types (lentic and lotic). We found a significant correlation between a higher density of D. lumholtzi and the distance from reservoirs to the other sampling points. Additionally, a relationship between D. lumholtzi and types of environments was noted. It is known that cladocerans, including D. lumholtzi, have a reduced swimming ability, which makes it difficult for them to overcome currents and consequently establish or maintain large populations in lotic environments. Further research is needed to identify other factors responsible for the species' occurrence in this system and to determine the possible effects this species may have on the native community.
期刊介绍:
As human populations grow across the planet, water security, biodiversity loss and the loss of aquatic ecosystem services take on ever increasing priority for policy makers. International Review of Hydrobiology brings together in one forum fundamental and problem-oriented research on the challenges facing marine and freshwater biology in an economically changing world. Interdisciplinary in nature, articles cover all aspects of aquatic ecosystems, ranging from headwater streams to the ocean and biodiversity studies to ecosystem functioning, modeling approaches including GIS and resource management, with special emphasis on the link between marine and freshwater environments. The editors expressly welcome research on baseline data. The knowledge-driven papers will interest researchers, while the problem-driven articles will be of particular interest to policy makers. The overarching aim of the journal is to translate science into policy, allowing us to understand global systems yet act on a regional scale.
International Review of Hydrobiology publishes original articles, reviews, short communications, and methods papers.