Feeding in the dark: are stonefly nymphs good indicators of reference conditions for cave streams? A case study using gut content analysis in Brazilian quartzite caves

IF 1.2 4区环境科学与生态学 Q4 LIMNOLOGY

Limnetica Pub Date : 2021-01-15 DOI:10.23818/limn.40.06

Bárbara Goulart Costa, Rodrigo Lopes Ferreira, T. G. Pellegrini

引用次数: 0

Abstract

Feeding in the dark: are stonefly nymphs good indicators of reference conditions for cave streams? A case study using gut content analysis in Brazilian quartzite caves Benthic macroinvertebrates are considered important bioindicators of water quality, and their distribution is influenced by several factors, including food availability. This feeding is an essential factor for all living beings and determines aspects of temporal and spatial population dynamics and relations between individuals and their respective habitats. The present work aimed to analyze the diet of nymphs of the order Plecoptera associated with quartzite caves located in southern Minas Gerais state, Brazil. The stomach contents of 79 specimens were analyzed, and many were empty (40.5 %). Among the nymphs with stomach contents, the most frequent content was fine particulate organic matter. The high amount of individuals with empty content may indicate a low tolerance of these organisms to subterranean environments.

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在黑暗中进食:石蝇若虫是洞穴溪流参考条件的良好指标吗?巴西石英岩洞穴肠道成分分析的案例研究

在黑暗中觅食：石蝇若虫是洞穴溪流参考条件的良好指标吗？在巴西石英岩洞穴中使用肠道含量分析的案例研究底栖大型无脊椎动物被认为是水质的重要生物指标，其分布受到几个因素的影响，包括食物供应。这种喂养是所有生物的一个重要因素，决定了种群的时空动态以及个体与其各自栖息地之间的关系。本工作旨在分析与巴西米纳斯吉拉斯州南部石英岩洞穴有关的丛翅目若虫的饮食。对79个标本的胃内容物进行了分析，其中许多是空的（40.5%）。在有胃内容物的若虫中，最常见的内容物是细颗粒有机物。具有空含量的大量个体可能表明这些生物体对地下环境的耐受性较低。

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

Limnetica LIMNOLOGY-MARINE & FRESHWATER BIOLOGY

CiteScore

3.70

自引率

7.10%

发文量

审稿时长

>12 weeks

期刊介绍： Limnetica publishes original research articles on the ecology of inland waters. The scope of Limnetica includes the ecology of rivers, lakes, reservoirs, coastal lagoons and wetlands, as well as biogeochemistry, paleolimnology, development of new methodologies, taxonomy, biogeography and any aspect of theoretical and applied continental aquatic ecology such as management and conservation, impact assessment, ecotoxicology and pollution. Limnetica will accept for its publication scientific articles presenting advances in knowledge or technological development, as well as as papers derived from new practical approaches on the topics covered by the journal.