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Arakelova, Katherine S.

doi:10.1023/a:1011446224456

Cited by 21 publications

(5 citation statements)

References 32 publications

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“…Tubificid feeding on lower-quality sludge would reduce their performance, but, as by both species together a larger part of the sludge was digested, this would also result in a higher total degradation of sludge. Trophic niche differentiation has been described before in competitive interactions between A. aquaticus and the snail Potamopyrgus antipodarum, which led to a shift in the trophic niche of the latter (Aberle et al 2005). Enhanced OM degradation through niche partitioning has also been observed in experiments with gammarids and caddisfly larvae (Tonin et al 2018).…”

Section: Macroinvertebrate Biotic Interactionsmentioning

confidence: 56%

Macroinvertebrate interactions stimulate decomposition in WWTP effluent-impacted aquatic ecosystems

et al. 2021

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Aquatic ecosystems worldwide are impacted by an influx of nutrients and sludge particles from wastewater treatment plant (WWTP) effluents, leading to a degradation of benthic habitats and a loss of associated macroinvertebrate taxa. Hence, in habitats impacted by WWTPs, only a few tolerant macroinvertebrate taxa remain. These tolerant detritivore macroinvertebrate taxa play an important role in the degradation of organic matter, and biotic interactions between these taxa may either enhance or reduce the rate of sludge degradation. Therefore, the aim of the present study was to examine if the interaction between asellids and tubificids, both highly abundant in systems impacted by WWTP effluent, enhances the degradation of sludge. To this end, growth and reproduction of both taxa, sludge degradation and nutrient concentrations in the overlying water were measured in a 28-day laboratory experiment, subjecting WWTP sludge to 4 treatments: a control without macroinvertebrates, a tubificid, an asellid, and an asellid + tubificid treatment. Sludge degradation, phosphate concentration in the overlying water and asellid reproduction were enhanced when asellids and tubificids were jointly present, whereas tubificid growth and reproduction were hampered in comparison to the tubificid treatment. Hence, our results suggest that the biotic interactions between these tolerant detritivores stimulate sludge degradation, and thus possibly mitigating the negative impacts of WWTP-derived sludge particles on the benthic environment.

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Section: Macroinvertebrate Biotic Interactionsmentioning

confidence: 56%

Macroinvertebrate interactions stimulate decomposition in WWTP effluent-impacted aquatic ecosystems

et al. 2021

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“…Females of A. aquaticus are females are assumed not to have a true spermatheca, rather a temporary pouch in the oviduct (i.e., seminal receptacle) that can collect sperm and that regresses after egg-laying without sperm storage (Wilson, 1986). Females can produce a variable number of eggs (between a few dozen to over a hundred; e.g., Lürig and Matthews, 2021) and large females tend to produce more eggs (Arakelova, 2001).…”

Section: Asellus Aquaticus As a Model System For Integrative Studiesmentioning

confidence: 99%

Building on 150 Years of Knowledge: The Freshwater Isopod Asellus aquaticus as an Integrative Eco-Evolutionary Model System

et al. 2021

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Interactions between organisms and their environments are central to how biological diversity arises and how natural populations and ecosystems respond to environmental change. These interactions involve processes by which phenotypes are affected by or respond to external conditions (e.g., via phenotypic plasticity or natural selection) as well as processes by which organisms reciprocally interact with the environment (e.g., via eco-evolutionary feedbacks). Organism-environment interactions can be highly dynamic and operate on different hierarchical levels, from genes and phenotypes to populations, communities, and ecosystems. Therefore, the study of organism-environment interactions requires integrative approaches and model systems that are suitable for studies across different hierarchical levels. Here, we introduce the freshwater isopod Asellus aquaticus, a keystone species and an emerging invertebrate model system, as a prime candidate to address fundamental questions in ecology and evolution, and the interfaces therein. We review relevant fields of research that have used A. aquaticus and draft a set of specific scientific questions that can be answered using this species. Specifically, we propose that studies on A. aquaticus can help understanding (i) the influence of host-microbiome interactions on organismal and ecosystem function, (ii) the relevance of biotic interactions in ecosystem processes, and (iii) how ecological conditions and evolutionary forces facilitate phenotypic diversification.

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“…The available food can be calculated as follows: Asellus aquaticus (of 3 mm length) possess a wet weight of 1.3 mg and have a median food intake of about 2% d −1 (wet weight/wet weight), or 0.03 mg d −1 . Larger Asellus aquaticus of 8 mm possess a wet weight of 6.3 mg, which leads to a daily food intake of 0.13 mg d −1 [12,41]. The biomass of biofilm is about 10 6 (10 4 -10 8 ) cells cm −2 , which is about 0.3 g m −3 pipe volume [7].…”

Section: Macroinvertebrates As Inhabitants Of Drinking Water Pipesmentioning

confidence: 99%

Water Lice and Other Macroinvertebrates in Drinking Water Pipes: Diversity, Abundance and Health Risk

Gunkel

Michels²,

Scheideler³

2021

Water

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Activities to ensure and maintain water quality in drinking water networks, including flushing, are presented after standardized hydrant sampling combined with a stainless-steel low pressure–high flow rate (NDHF) filter and a 100 µm mesh size was used to separate pipe inhabitants. A databank of more than 1000 hydrant samples in European lowland areas was developed and used to analyze the diversity and abundance of macroinvertebrates in drinking water networks. Load classes for water louse (Asellus aquaticus) and oligochaetes are given with three evaluation classes: normal colonization, increased colonization, and mass development. The response of Asellus aquaticus in drinking water networks to environmental conditions are presented as are their growth and reproduction, promotion of a third generation by climate change effects, food limitations, and the composition and stability of their feces. Finally, the health risks posed by dead water lice and water lice feces with bacterial regrowth and the promotion of microbe development on house filters are analyzed.

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Untitled

Cited by 21 publications

References 32 publications

Macroinvertebrate interactions stimulate decomposition in WWTP effluent-impacted aquatic ecosystems

Macroinvertebrate interactions stimulate decomposition in WWTP effluent-impacted aquatic ecosystems

Building on 150 Years of Knowledge: The Freshwater Isopod Asellus aquaticus as an Integrative Eco-Evolutionary Model System

Water Lice and Other Macroinvertebrates in Drinking Water Pipes: Diversity, Abundance and Health Risk

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