A Reappraisal of Needham and Usinger's Data on the Variability of a Stream Fauna When Sampled With a Surber Sampler

Chutter, F. M.

doi:10.4319/lo.1972.17.1.0139

Cited by 50 publications

(26 citation statements)

References 3 publications

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“…A considerable number of replicates is evidently necessary to estimate invertebrate abundance and biomass with high levels of confidence ( Table 2). The number of samples required to determine mean abundance is approximately twice that generally required for stream riffle invertebrate sampling (e.g., Chutter 1972). Because of the difficulty of obtaining the macrophyte samples and the time required for sample preparation and sorting, it was necessary to restrict the number of samples to 3 per macrophyte taxon, thus allowing a mean estimate of the invertebrate abundance to within ±80%, with 95% confidence.…”

Section: Methodsmentioning

confidence: 99%

Macroinvertebrates associated with various aquatic macrophytes in the backwaters and lakes of the upper Clutha Valley, New Zealand

Biggs

Malthus

1982

New Zealand Journal of Marine and Freshwater Research

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The invertebrate communities associated with 3 native aquatic macrophytes (Potamogeton cheesemanii, Myriophyllum propinquum and Characeae) and 3 adventive species (Elodea canadensis, Lagarosiphon major, and Ranunculus fluitans) in Lakes Wanaka and Roxburgh and several backwaters of the Upper Clutha River were studied in February-March 1980. Underwater divers obtained a total of 24 × 1 m 2 macrophyte samples, from which the invertebrates were removed. 26 invertebrate taxa were identified, several of which had not previously been recorded from macrophyte communities in New Zealand. The communities were all dominated by the gastropod Potamopyrgus antipodarum, with Physa sp. (Mollusca) or Chironomidae (Diptera) being sub-dominant. Overall, the mean abundance of invertebrates was 1585 m -2 , and the mean biomass of invertebrates was 0.994 g m -2 . The Characeae had the highest mean abundance and biomass of invertebrates, and P. cheesemanii the lowest. Significant differences in invertebrate abundance and biomass occurred between some of the macrophyte habitats, but there appeared to be no preference by the invertebrate fauna for either indigenous or adventive macrophyte species as a habitat.

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Section: Methodsmentioning

confidence: 99%

Macroinvertebrates associated with various aquatic macrophytes in the backwaters and lakes of the upper Clutha Valley, New Zealand

Biggs

Malthus

1982

New Zealand Journal of Marine and Freshwater Research

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“…A high degree of variability is observed in the abundance of benthos within heterogeneous substrates (Chutter, 1972;Townsend, 1989;Jowett and Richardson, 1990;Beisel et al, 2000), although community composition can be constant within mesohabitat types (Armitage et al, 1995). Davis and Barmuta (1989) associate this variability or patchiness with the variety of hydraulic conditions that can exist around substrate elements, and suggest that patchiness will be greatest where the water depth is small relative to the substrate size and the particle Reynolds number Re Ã is high.…”

Section: Patchinessmentioning

confidence: 99%

Hydraulic constraints on habitat suitability for benthic invertebrates in gravel‐bed rivers

Jowett

2003

River Research & Apps

146

114

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The primary components of the physical habitat in a stream are water depth, velocity and substrate size, and these appear to be the best predictors of benthic invertebrate distribution within a stream. Substrate stability and fine sediment deposition also influence benthic invertebrate abundance, with reduced abundance where substrates are frequently disturbed or where fine sediment accumulates. Substrate stability and deposition of fine sediment provide hydraulic constraints on habitat suitability and their limits can be predicted by hydraulic formulae. Hydraulic conditions near or at the surface of the stream bed may have a more direct influence on benthic invertebrates than either water depth or mean velocity in the water column above them. If benthic invertebrates have 'preferred' near-bed conditions, hydraulic considerations suggest that optimum mean water velocities for benthic invertebrates should increase with average stream depth and substrate size. Examination of three sets of field data from rivers of varying size showed that benthic invertebrate abundance was strongly related to mean velocity and substrate size, with large differences in habitat use between species. However, although there were large differences in preferred mean velocities between rivers of different size and depth, there was little evidence that this occurred within rivers of similar size and hence little support for the hypothesis that near-bed hydraulics can provide a generalized method of predicting invertebrate habitat suitability between rivers of different size.

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“…The effects on production estimates of a prolonged recruitment period (less synchronous development) and differential size-specific mortality (Benke 1976) were not considered. Problems associated with stream benthos sampling methods (Chutter 1972;Gaufin et al 1956;Kroger 1972) may well dwarf errors arising from the production calculation. The instantaneous-growth method was sensitive to both the sampling regime and the growth curve.…”

mentioning

confidence: 99%

The effect of growth curve and sampling regime on instantaneous‐growth, removal‐summation, and Hynes/Hamilton estimates of aquatic insect production: A computer simulation 1

Cushman

Shugart

Hildebrand

et al. 1978

Limnology & Oceanography

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Hypothetical populations of aquatic insects were periodically sampled, using a computer model, to estimate production by the instantaneous‐growth, removal‐summation, and Hynes/Hamilton methods. These estimates were compared with the production values calculated from the daily growth of all individuals in the populations. The removal‐summation method yielded the most accurate estimates for a variety of growth curves and sampling regimes and appeared to be the least sensitive to violations of the growth assumptions of the method.

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A Reappraisal of Needham and Usinger's Data on the Variability of a Stream Fauna When Sampled With a Surber Sampler

Cited by 50 publications

References 3 publications

Macroinvertebrates associated with various aquatic macrophytes in the backwaters and lakes of the upper Clutha Valley, New Zealand

Macroinvertebrates associated with various aquatic macrophytes in the backwaters and lakes of the upper Clutha Valley, New Zealand

Hydraulic constraints on habitat suitability for benthic invertebrates in gravel‐bed rivers

The effect of growth curve and sampling regime on instantaneous‐growth, removal‐summation, and Hynes/Hamilton estimates of aquatic insect production: A computer simulation 1

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