Surber and kick sampling: a comparison for the assessment of macroinvertebrate community structure in streams of south-western Australia

Storey, Andrew; Edward, D. H. D.; Gazey, P.

doi:10.1007/bf00037367

Cited by 58 publications

(49 citation statements)

References 18 publications

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“…While others have compared small numbers of qualitative to quantitative samples collected at a site (e.g. Storey et al 1991;Kerans et al 1992;Metzeling et al 2003), the relationship between qualitative RBA samples and a thoroughly sampled, and quantitative estimate of community structure has not been explored. Furthermore, there has been no exploration of the factors, such as the traits of taxa that may explain the omission or collection of a taxon, and consequently the variability among replicate RBA samples.…”

Section: Introductionmentioning

confidence: 98%

What do qualitative rapid assessment collections of macroinvertebrates represent? A comparison with extensive quantitative sampling

Gillies

Hose

Turak³

2008

Environ Monit Assess

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It is a fundamental tenet of Rapid Biological Assessments (RBA) that the samples collected reflect the community from which they are drawn. As with any biological sampling, RBA collections are subject to sampling error resulting in the omission of some taxa. The aim of this study is to compare the composition of RBA samples with an estimate of community structure based on extensive quantitative sampling. We used logistic regression to explore the relationships between the frequency of a taxon being collected in an RBA sample and its biological and ecological traits, namely its abundance, distribution, body size and habit. RBA samples and quantitative estimates of community structure were made in riffles in the Kangaroo and Nepean Rivers, New South Wales, Australia. Single RBA samples may collect up to 63% of the taxa that are collected by extensive quantitative sampling at a site. The frequency of a taxon being recorded in an RBA sample was significantly and positively related to all traits tested indicating a bias in the collection methods towards large, abundant and widely distributed taxa. Accordingly, taxa missed by RBA sampling were generally small, narrowly distributed or rare. These findings enhance our understanding of what RBA samples represent, and the bias and source of errors associated with RBA sampling. This study also quantifies the utility of RBA methods for biodiversity assessment.

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Section: Introductionmentioning

confidence: 98%

What do qualitative rapid assessment collections of macroinvertebrates represent? A comparison with extensive quantitative sampling

Gillies

Hose

Turak³

2008

Environ Monit Assess

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“…Thought not significant, the kick-net sampler recorded the greatest number of taxa but did significantly poorer than the Surber when densities were compared. Storey et al (1991) found that Surber samples contained fewer individuals and more taxa than kick-net samples, though the sampling device in this case consisted of a D-frame pond net and cannot be directly compared to the two-pole kick-net. The kick-net used in the present study covered the largest area but required considerable skill in raising the net to prevent organisms from passing under the net or rolling off the end.…”

Section: Discussionmentioning

confidence: 95%

Bootstrapping to investigate the effect of number of macroinvertebrate samples on confidence limits of the mean

Chiasson

2008

Environ Monit Assess

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A resampling technique (bootstrapping) was used to evaluate the effects of increasing sample number on the confidence limits of mean density and the mean number of taxa (Families) in addition to the performance of four different sampling devices used to collect macroinvertebrates in three streams of contrasting anthropogenic impact. The four sampling devices were a Hess sampler, a modified Hess sampler equipped with an internal water pump, a Surber sampler, and a two-pole kick-net. In general, confidence limits decreased predictably as the number of samples increased, most notably with the addition of a third sample. The density of organisms captured with the Surber sampler was significantly lower than that of the Hess sampler but greater than that of the kick-net sampler. No significant difference in the number of Families was found among sampling devices. Based upon a minimal 10% reduction in confidence limits compared to the previous sample, a minimum of four replicates was suggested when using the Surber sampler. In general, other methods required a greater number of replicates that the Surber to adequately represent density, but this did not hold when applied to the number of taxa. Despite the inconvenience of having to bend down to use the Surber sampler, this study found no evidence to reject its apparent popularity as a sampling method for macroinvertebrates.

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“…Decisions about the best sampling device to use in RBPs have been highly discussed in the literature, and Kick nets have been preferred in front of Surber samplers (Storey et al 1991). Kick methods have been recommended in biomonitoring surveys providing semiquantitative or qualitative data, and many environmental agencies decided to use it in their national RBP programmes.…”

Section: Discussionmentioning

confidence: 99%

Application of rapid bioassessment protocols (RBP) for benthic macroinvertebrates in Brazil: comparison between sampling techniques and mesh sizes

Buss¹,

Borges²

2008

Neotrop. entomol.

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As amostras coletadas com Kick-net apresentaram número de taxa e de valores do índice BMWP signifi cativamente maiores do que as coletadas com Surber, sem um aumento signifi cativo no esforço amostral medido em tempo despendido para análise da amostra. Não houve diferenças signifi cativas quanto à relação custo/efi cácia entre os coletores. Quanto ao tamanho da malha, em 125 μm e 250 μm foram encontradas maiores abundância de macroinvertebrados e necessário mais tempo para processar as amostras, no entanto sem produzir diferenças signifi cativas no número de taxa e em valores do índice BMWP. Assim, a malha de 500 μm foi considerada mais efi ciente do que as malhas mais fi nas. Portanto, recomenda-se o uso de coletores do tipo kick usando uma malha de 500μm, para PBRs ao nível taxonômico de família em rios de características similares às deste estudo no Brasil.PALAVRAS-CHAVE: Avaliação ambiental, inseto aquático, ecologia de rios, biomonitoramento, bioindicadorABSTRACT -This study is part of the effort to test and to establish Rapid Bioassessment Protocols (RBP) using benthic macroinvertebrates as indicators of the water quality of wadeable streams in south-east Brazil. We compared the cost-effectiveness of sampling devices frequently used in RBPs, Surber and Kick-net samplers, and of three mesh sizes (125, 250 and 500 μm). A total of 126,815 benthic macroinvertebrates were collected, representing 57 families. Samples collected with Kick method had signifi cantly higher richness and BMWP scores in relation to Surber, but no signifi cant increase in the effort, measured by the necessary time to process samples. No signifi cant differences were found between samplers considering the cost/effectiveness ratio. Considering mesh sizes, signifi cantly higher abundance and time for processing samples were necessary for fi ner meshes, but no signifi cant difference were found considering taxa richness or BMWP scores. As a consequence, the 500 μm mesh had better cost/effectiveness ratios. Therefore, we support the use of a kick-net with a mesh size of 500 μm for macroinvertebrate sampling in RBPs using family level in streams of similar characteristics in Brazil.KEY WORDS: Environmental assessment, aquatic insect, freshwater ecology, biomonitoring, bioindicatorThe original Rapid Bioassessment Protocols (RBPs) were designed as inexpensive screening tools for determining if a stream is supporting or not supporting a designated aquatic life use. However, RBP tools can also be applied to other program areas, like characterizing the existence and severity of impairment to the water resource; helping to identify sources and causes of impairment; evaluating the effectiveness of control actions and restoration activities; supporting use attainability studies and cumulative impact assessments and characterizing

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Surber and kick sampling: a comparison for the assessment of macroinvertebrate community structure in streams of south-western Australia

Cited by 58 publications

References 18 publications

What do qualitative rapid assessment collections of macroinvertebrates represent? A comparison with extensive quantitative sampling

What do qualitative rapid assessment collections of macroinvertebrates represent? A comparison with extensive quantitative sampling

Bootstrapping to investigate the effect of number of macroinvertebrate samples on confidence limits of the mean

Application of rapid bioassessment protocols (RBP) for benthic macroinvertebrates in Brazil: comparison between sampling techniques and mesh sizes

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