Effects of salinity and temperature on the biology of Daphnia menucoensis Paggi, 1996 (Crustacea, Cladocera)

IF 0.9 4区生物学 Q3 MARINE & FRESHWATER BIOLOGY

Marine and Freshwater Behaviour and Physiology Pub Date : 2022-03-04 DOI:10.1080/10236244.2022.2047965

A. Vignatti, S. Echaniz, G. Cabrera

引用次数: 3

Abstract

ABSTRACT Daphnia menucoensis is frequent in lakes of the central pampas and northern Patagonia in Argentina. It has ecological importance since its grazing on phytoplankton makes lake water transparent. As most of the information about the species comes from field studies, the objective was to determine the influence of salinity and temperature on its biology through laboratory bioassays. Treatments were carried out with 7, 12 and 17 g/L of salts at 15 and 22°C. Neonates were used and, every two days until their death, the medium was renewed; they were fed with Chlorella vulgaris, survivors and offspring were quantified and molts were measured. The optimal conditions were recorded with 12 and 7 g/L, at 15 and 22°C, respectively. In these combinations, the highest average longevity (33–35 days), number of molts (7–12), litters (2.50–4.07), offspring (27.70–26.20), and the largest specimens (> 3 mm) were recorded.

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盐度和温度对menucoensis Paggi生物特性的影响(甲壳纲，枝总目)

摘要:menuoensis是阿根廷潘帕斯草原中部和巴塔哥尼亚北部湖泊中常见的水蚤。它以浮游植物为食，使湖水透明，具有重要的生态意义。由于关于该物种的大多数信息来自实地研究，因此目的是通过实验室生物分析确定盐度和温度对其生物学的影响。分别用7、12和17 g/L的盐在15和22°C下处理。使用新生儿，每隔两天更新一次培养基，直到他们死亡;用普通小球藻喂养，定量观察成虫和子代，并测定脱皮率。最佳条件为12和7 g/L，温度分别为15°C和22°C。这些组合的平均寿命最高(33 ~ 35 d)，换毛数最高(7 ~ 12)，窝数最高(2.50 ~ 4.07)，子代最高(27.70 ~ 26.20)，标本最大(> 3 mm)。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Marine and Freshwater Behaviour and Physiology 生物-海洋与淡水生物学

CiteScore

2.10

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Marine and Freshwater Behaviour and Physiology is devoted to the publication of papers covering field and laboratory research into all aspects of the behaviour and physiology of all marine and freshwater animals within the contexts of ecology, evolution and conservation. As the living resources of the world’s oceans, rivers and lakes are attracting increasing attention as food sources for humans and for their role in global ecology, the journal will also publish the results of research in the areas of fisheries biology and technology where the behaviour and physiology described have clear links to the contexts mentioned above. The journal will accept for publication Research Articles, Reviews, Rapid Communications and Technical Notes (see Instructions for authors for details). In addition, Editorials, Opinions and Book Reviews (invited and suggested) will also occasionally be published. Suggestions to the Editor-In-Chief for Special Issues are encouraged and will be considered on an ad hoc basis. With the goal of supporting early career researchers, the journal particularly invites submissions from graduate students and post-doctoral researchers. In addition to recognising the time constraints and logistical limitations their research often faces, and their particular need for a prompt review process, accepted articles by such researchers will be given prominence within the journal (see Instructions for authors for details).