نتایج جستجو برای: brachionus calyciflorus

تعداد نتایج: 581  

Journal: : 2022

The current state of the quantitative and qualitative development zooplankton in Kakhovka Reservoir is examined. species composition, representation taxonomic groups, number biomass summer period 2020–2021 were determined. average 2020 studied areas (Bilenke village, Bilenke-Malokaterynivka station, vicinity Malokaterynivka village) was 40.833 units/m3 with 0.245 g/m3, 2021 — 110,932 0.652 g/m3...

Journal: :Asian Journal of Fisheries and Aquatic Research 2023

A study of zooplankton diversity and water quality Lake Dogodogo located in West Burundi was carried out from April to July 2021 six sampling stations, with four selected the littoral zone two remaining pelagic one. The main objective assess using indices for a better management this fishery resource essential surrounding populations. collected twice month between 8 A.M 11 each time. samples we...

Journal: :Frontiers in Environmental Science 2022

Environmental pollution by microplastics has become a severe problem in terrestrial and aquatic ecosystems and, according to actual prognoses, problems will further increase the future. Therefore, assessing quantifying risk for biota is crucial. Standardized short-term toxicological procedures as well methods potential toxic effects over whole life span of an animal are required. We studied eff...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2006
Justin R Meyer Stephen P Ellner Nelson G Hairston Laura E Jones Takehito Yoshida

Using rotifer-algal microcosms, we tracked rapid evolution resulting from temporally changing natural selection in ecological predator-prey dynamics. We previously demonstrated that predator-prey oscillations in rotifer-algal laboratory microcosms are qualitatively altered by the presence of genetic variation within the prey. In that study, changes in algal gene frequencies were inferred from t...

Journal: :Proceedings. Biological sciences 2003
Gregor F Fussmann Stephen P Ellner Nelson G Hairston

Microevolution is typically ignored as a factor directly affecting ongoing population dynamics. We show here that density-dependent natural selection has a direct and measurable effect on a planktonic predator-prey interaction. We kept populations of Brachionus calyciflorus, a monogonont rotifer that exhibits cyclical parthenogenesis, in continuous flow-through cultures (chemostats) for more th...

Journal: :Acta Ecologica Sinica 2023

PDF HTML阅读 XML下载 导出引用 引用提醒 大型和小型萼花臂尾轮虫的遗传和生活史特征比较研究 DOI: 10.5846/stxb202109282719 作者: 作者单位: 作者简介: 通讯作者: 中图分类号: 基金项目: 国家自然科学基金项目(32070463);安徽省高校生物环境与生态安全省级重点实验室、重要生物资源保护和利用研究安徽省重点实验室专项基金;安徽省高校协同创新项目(GXXT-2020-075) Comparison of the genetic and life history characteristics between large small Brachionus calyciflorus morphs Author: Affiliation: Fund Project: National Natural Science Foundation Chi...

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