Nematodes, including a new record of Tobrilus diversipapillatus in Australia, as potential indicators of sewage effluent pollution

Arthington, AH; Yeates, G. W.; Conrick, DL

doi:10.1071/mf9860159

Cited by 16 publications

(5 citation statements)

References 12 publications

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“…It is well established that nematodes are sensitive indictors for a range of environmental conditions [26,27]; however, their size and difficulties associated with identification often preclude them from benthic monitoring programs below the level of phylum [28]. In the present study, both the traditionally obtained and molecular data clearly showed that nematode survivorship was impaired in the high group, which contained samples only from the high triclosan treatment [9].…”

Section: Molecular Endpoints For Characterizing Ecological Effectsmentioning

confidence: 43%

A molecular‐based approach for examining responses of eukaryotes in microcosms to contaminant‐spiked estuarine sediments

Chariton

Proestou

et al. 2014

Enviro Toxic and Chemistry

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Ecotoxicological information for most contaminants is limited to a small number of taxa, and these are generally restricted to comparatively hardy organisms that are readily extractable from test media and easily identifiable. Advances in DNA sequencing can now provide a comprehensive view of benthic invertebrate diversity. The authors applied 454 pyrosequencing to examine the responses of benthic communities in microcosms exposed to sediments with elevated concentrations of triclosan, the endpoint being eukaryl communities that have successfully vertically migrated through the manipulated sediments. The biological communities associated with the 3 treatments (control triclosan, low triclosan [14 mg/kg], and high triclosan [180 mg/kg]) clustered into 3 groups: control/low (n = 6 controls and 4 low), moderate (n = 2 low), and high (n = 5 high). One sample was discarded as an outlier. The most pronounced change as a response to triclosan was the loss of number of metazoan operational taxonomic units (OTUs), indicative of the control/low and moderate groups, with this being most evident in the range of taxa associated with the classes Chromadorea and Bivalvia and the phylum Kinorhyncha. The authors also describe a range of other taxa that aided discrimination between the groups; compare findings with traditionally obtained meio- and macrofaunal communities obtained from the same experiment; and illustrate some of the advantages and limitations associated with both the molecular and traditional approaches. The described approach illustrates the capacity for amplicon sequencing to provide ecologically relevant information that can be used to strengthen an understanding of how sedimentary communities respond to a range of environmental stressors.

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Section: Molecular Endpoints For Characterizing Ecological Effectsmentioning

confidence: 43%

A molecular‐based approach for examining responses of eukaryotes in microcosms to contaminant‐spiked estuarine sediments

Chariton

Proestou

et al. 2014

Enviro Toxic and Chemistry

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“…These ſndings are consistent with the results of a study by Heininger et al (2007), in which Monhystera was associated with low heavy metal pollution of river sediments and Tobrilus was associated with high heavy metal concentrations. Arthington et al (1986) also found high abundances of T. diversipapillatus in freshwater sediments containing high levels of heavy metals from sewage efƀuents. Although hydromorphological factors might also inƀuence the nematode community structure (Heininger et al 2007), there is evidence that heavy metals shift nematode communities towards predator-and omnivore-dominated communities (Bergtold et al, 2007).…”

Section: Discussionmentioning

confidence: 81%

Invertebrate communities in soft sediments along a pollution gradient in a Mediterranean river (Llobregat, NE Spain)

López-Doval¹,

Großschartner²,

Höss³

et al. 2010

Limnetica

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Invertebrate communities in soft sediments along a pollution gradient in a Mediterranean river (Llobregat, NE Spain)The Llobregat is a highly-perturbed Mediterranean river affected by a wide range of pollutants. High concentrations of soluble reactive phosphorus and chloride are the clearest indicators of pollution in this basin. Seven sites in the mid and lower Llobregat basin were sampled in June 2005 to examine the invertebrate community inhabiting the soft sediments along this pollution gradient. Spatial distribution analysis revealed differences in chemical parameters, and in the composition and biomass of the invertebrate community. Most of the taxa found are opportunistic and reƀect low or unacceptable biological water quality. Nevertheless, changes in their abundance, biomass and diversity reƀect the longitudinal pollution gradient in the river.

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“…Tobrilus diversipapillatus has been reported from a freshwater creek near Brisbane, Australia (Arthington, Yeates & Conrick, 1986). As freshwater inhabitants they are not included in Jensen's review of feeding categories, but their wide buccal cavities containing an internal tooth suggest scavengers.…”

Section: Discussionmentioning

confidence: 99%

The nematode fauna of the Murray River estuary, South Australia; the effects of the barrages across its mouth

et al. 1992

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The littoral nematode fauna of the Murray River, South Australia, above and below the barrages that control the outflow of the river into the Southern Ocean has been investigated by taking cores of the sediment at monthly intervals for one year. Samples of river water were taken at the same time for chemical analysis and sediment particle size has also been investigated.At two sites below the barrages the salinity varied depending on the volume of water discharged through the barrages. It rose almost to that of sea water while they remained closed, but fell to that of the river water when they were all open and discharging large volumes of river water.

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Nematodes, including a new record of Tobrilus diversipapillatus in Australia, as potential indicators of sewage effluent pollution

Cited by 16 publications

References 12 publications

A molecular‐based approach for examining responses of eukaryotes in microcosms to contaminant‐spiked estuarine sediments

A molecular‐based approach for examining responses of eukaryotes in microcosms to contaminant‐spiked estuarine sediments

Invertebrate communities in soft sediments along a pollution gradient in a Mediterranean river (Llobregat, NE Spain)

The nematode fauna of the Murray River estuary, South Australia; the effects of the barrages across its mouth

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