Colonizing macroinvertebrates in the Upper Mississippi River with a comparison of basket and multiplate samplers *

Hall, Thomas J.

doi:10.1111/j.1365-2427.1982.tb00616.x

Cited by 6 publications

(2 citation statements)

References 10 publications

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“…, 1988), depending on water depth and velocity. Techniques differ in their efficiency to sample invertebrates in a quantitative way (Elliott & Drake, 1981a,b; Hall, 1982), so technical details on sampling (e.g. dimensions of Surber sampler, volume of artificial substrates, sampling duration of kick sampling) were important to obtain abundance values that were comparable among studies.…”

Section: Invertebrate Abundances and Environmental Conditions In Largmentioning

confidence: 99%

Invertebrate traits for the biomonitoring of large European rivers: an initial assessment of alternative metrics

et al. 2003

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Summary 1. The application of environmental policy and legislation across large‐scale administrative units creates a growing need for standard tools to assess and monitor the ‘ecological health’ of rivers, a requirement that can be achieved through the description of ecological functions of lotic invertebrate species in river communities. 2. To assess alternative metrics, we tested how the functional structure (described by 14 biological traits) of invertebrate communities in 190 large river reaches differed with respect to differences in taxonomic resolution (species, genus, family), taxa weighting of traits (raw abundance, ln‐transformed abundance, presence–absence data) and consideration of alien species (inclusion or exclusion), and how these differences influenced the potential of functional descriptions to discriminate river reaches across a gradient of multiple human impacts. 3. Functional descriptions derived at the level of species, genera and families were very similar, whereas functional descriptions derived from raw abundances differed significantly from those derived from both ln‐transformed abundances and presence–absence data. Functional descriptions after the exclusion of alien species differed considerably from those including alien species. 4. Generally, the functional descriptions significantly discriminated river reaches according to the level of human impact. Taxonomic resolution scarcely influenced the discrimination of impact levels, whereas the use of raw abundances decreased impact discrimination in comparison with ln‐transformed abundances and presence–absence data. Exclusion of alien species also decreased discrimination of impact levels. 5. When considered separately, individual biological traits describing maximal size, number of descendants per reproductive cycle, number of reproductive cycles per individual, life duration of adults, reproductive method, parental care, body form and feeding habits had the highest potential to discriminate the level of human impact. 6. Our findings indicate that genus or perhaps family identifications are sufficient for large‐river biomonitoring using invertebrate traits. Although raw abundances could provide a better discrimination of low levels of human impact, presence–absence data should be sufficient to discriminate functional community changes caused by elevated levels of human impact across Europe.

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Section: Invertebrate Abundances and Environmental Conditions In Largmentioning

confidence: 99%

Invertebrate traits for the biomonitoring of large European rivers: an initial assessment of alternative metrics

et al. 2003

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“…The nature of the colonisation substrate is likely to have some effect on the composition of the colonising fauna, and this aspect has been examined in a number of studies (e.g. Mason, Weber, Lewis and Julian, 1973;Allan, 1975;McConville, 1975;Hall, 1982;Morin, 1985). Taxa also colonise at different rates depending both on their mode of movement and on their propensity to move.…”

Section: Introductionmentioning

confidence: 99%

Colonisation patterns of mayfly nymphs (Ephemeroptera) on implanted substrate trays of different size

Giller

Cambell

1989

Hydrobiologia

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Colonisation by nymphs of eight mayfly species was monitored in a small stream using implanted natural substrate trays of different area during a seven day period.All species colonised the trays, but to various degrees. Downstream drift and directed or random crawling over the substrate contributed equally to colonisation of the implanted substrates.The area of the implanted substrate trays had profound effects on the diversity, density and size frequency distributions of the colonising assemblage. Density declined, but overall diversity and mean size of most mayfly species increased as tray size increased.The influence of implanted substrate tray area on the above parameters indicates potential problems in the use of colonisation studies to examine the composition and dynamics of lotic invertebrate assemblages. This is especially so given the lack of standardisation of colonisation samplers between such studies.

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Colonization of artificial substrates by benthos in a second-order high altitude river in Kenya

Mathooko

1995

Hydrobiologia

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An investigation on the colonization of artificial substrate baskets by benthos was carried out in the Naro Moru River, a second-order high altitude river in Kenya, from November, 1986 to October, 1987. Simuliidae dominated the colonizing benthos. The mean (95% CL) maximum colonization time was achieved after 9.63±1.57 days. The highest mean diversity (H') occurred after 6 days of exposure whilst the highest mean H'maximum, evenness (J') and species richness (s) were achieved after 10, 8 and 10 days respectively.The benthos arrival rate (AR) declined exponentially with time. The changes in benthos departure rate (

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Colonizing macroinvertebrates in the Upper Mississippi River with a comparison of basket and multiplate samplers *

Cited by 6 publications

References 10 publications

Invertebrate traits for the biomonitoring of large European rivers: an initial assessment of alternative metrics

Invertebrate traits for the biomonitoring of large European rivers: an initial assessment of alternative metrics

Colonisation patterns of mayfly nymphs (Ephemeroptera) on implanted substrate trays of different size

Colonization of artificial substrates by benthos in a second-order high altitude river in Kenya

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