A comparison of rapid bioassessment protocols used in 2 regions with Mediterranean climates, the Iberian Peninsula and South Africa

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dc.contributor.authorBONADA, NÚRIA
dc.contributor.authorDALLAS, HELEN
dc.contributor.authorRIERADEVALL, MARIA
dc.contributor.authorPRAT, NARCÍS
dc.contributor.authorDAY, JENNY
dc.date.accessioned2021-10-08T07:08:17Z
dc.date.available2021-10-08T07:08:17Z
dc.date.issued2006
dc.description.abstractAbstract. The ability of 2 Rapid Bioassessment Protocols (RBPs) to assess stream water quality was compared in 2 Mediterranean-climate regions. The most commonly used RBPs in South Africa (SAprotocol) and the Iberian Peninsula (IB-protocol) are both multihabitat, field-based methods that use macroinvertebrates. Both methods use preassigned sensitivity weightings to calculate metrics and biotic indices. The SA- and IB-protocols differ with respect to sampling equipment (mesh size: 1000 lm vs 250-300 lm, respectively), segregation of habitats (substrate vs flow-type), and sampling and sorting procedures (variable time and intensity). Sampling was undertaken at 6 sites in South Africa and 5 sites in the Iberian Peninsula. Forty-four and 51 macroinvertebrate families were recorded in South Africa and the Iberian Peninsula, respectively; 77.3% of South African families and 74.5% of Iberian Peninsula families were found using both protocols. Estimates of community similarity compared between the 2 protocols were .60% similar among sites in South Africa and .54% similar among sites in the Iberian Peninsula (Bray-Curtis similarity), and no significant differences were found between protocols (Multiresponse Permutation Procedure). Ordination based on Non-metric Multidimensional Scaling grouped macroinvertebrate samples on the basis of site rather than protocol. Biotic indices generated with the 2 protocols at each site did not differ. Thus, both RBPs produced equivalent results, and both were able to distinguish between biotic communities (mountain streams vs foothills) and detect water-quality impairment, regardless of differences in sampling equipment, segregation of habitats, and sampling and sorting procedures. Our results indicate that sampling a single habitat may be sufficient for assessing water quality, but a multihabitat approach to sampling is recommended where intrinsic variability of macroinvertebrate assemblages is high (e.g., in undisturbed sites in regions with Mediterranean climates). The RBP of choice should depend on whether the objective is routine biomonitoring of water quality or autecological or faunistic studies.
dc.identifier.apacitationBONADA, N., DALLAS, H., RIERADEVALL, M., PRAT, N., & DAY, J. (2006). A comparison of rapid bioassessment protocols used in 2 regions with Mediterranean climates, the Iberian Peninsula and South Africa. <i>Journal of the North American Benthological Society</i>, 25(2), 487 - 500. http://hdl.handle.net/11427/34545en_ZA
dc.identifier.chicagocitationBONADA, NÚRIA, HELEN DALLAS, MARIA RIERADEVALL, NARCÍS PRAT, and JENNY DAY "A comparison of rapid bioassessment protocols used in 2 regions with Mediterranean climates, the Iberian Peninsula and South Africa." <i>Journal of the North American Benthological Society</i> 25, 2. (2006): 487 - 500. http://hdl.handle.net/11427/34545en_ZA
dc.identifier.citationBONADA, N., DALLAS, H., RIERADEVALL, M., PRAT, N. & DAY, J. 2006. A comparison of rapid bioassessment protocols used in 2 regions with Mediterranean climates, the Iberian Peninsula and South Africa. <i>Journal of the North American Benthological Society.</i> 25(2):487 - 500. http://hdl.handle.net/11427/34545en_ZA
dc.identifier.issn0887-3593
dc.identifier.issn1937-237X
dc.identifier.ris TY - Journal Article AU - BONADA, NÚRIA AU - DALLAS, HELEN AU - RIERADEVALL, MARIA AU - PRAT, NARCÍS AU - DAY, JENNY AB - Abstract. The ability of 2 Rapid Bioassessment Protocols (RBPs) to assess stream water quality was compared in 2 Mediterranean-climate regions. The most commonly used RBPs in South Africa (SAprotocol) and the Iberian Peninsula (IB-protocol) are both multihabitat, field-based methods that use macroinvertebrates. Both methods use preassigned sensitivity weightings to calculate metrics and biotic indices. The SA- and IB-protocols differ with respect to sampling equipment (mesh size: 1000 lm vs 250-300 lm, respectively), segregation of habitats (substrate vs flow-type), and sampling and sorting procedures (variable time and intensity). Sampling was undertaken at 6 sites in South Africa and 5 sites in the Iberian Peninsula. Forty-four and 51 macroinvertebrate families were recorded in South Africa and the Iberian Peninsula, respectively; 77.3% of South African families and 74.5% of Iberian Peninsula families were found using both protocols. Estimates of community similarity compared between the 2 protocols were .60% similar among sites in South Africa and .54% similar among sites in the Iberian Peninsula (Bray-Curtis similarity), and no significant differences were found between protocols (Multiresponse Permutation Procedure). Ordination based on Non-metric Multidimensional Scaling grouped macroinvertebrate samples on the basis of site rather than protocol. Biotic indices generated with the 2 protocols at each site did not differ. Thus, both RBPs produced equivalent results, and both were able to distinguish between biotic communities (mountain streams vs foothills) and detect water-quality impairment, regardless of differences in sampling equipment, segregation of habitats, and sampling and sorting procedures. Our results indicate that sampling a single habitat may be sufficient for assessing water quality, but a multihabitat approach to sampling is recommended where intrinsic variability of macroinvertebrate assemblages is high (e.g., in undisturbed sites in regions with Mediterranean climates). The RBP of choice should depend on whether the objective is routine biomonitoring of water quality or autecological or faunistic studies. DA - 2006 DB - OpenUCT DP - University of Cape Town IS - 2 J1 - Journal of the North American Benthological Society LK - https://open.uct.ac.za PY - 2006 SM - 0887-3593 SM - 1937-237X T1 - A comparison of rapid bioassessment protocols used in 2 regions with Mediterranean climates, the Iberian Peninsula and South Africa TI - A comparison of rapid bioassessment protocols used in 2 regions with Mediterranean climates, the Iberian Peninsula and South Africa UR - http://hdl.handle.net/11427/34545 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/34545
dc.identifier.vancouvercitationBONADA N, DALLAS H, RIERADEVALL M, PRAT N, DAY J. A comparison of rapid bioassessment protocols used in 2 regions with Mediterranean climates, the Iberian Peninsula and South Africa. Journal of the North American Benthological Society. 2006;25(2):487 - 500. http://hdl.handle.net/11427/34545.en_ZA
dc.language.isoeng
dc.publisher.departmentDepartment of Biological Sciences
dc.publisher.facultyFaculty of Science
dc.sourceJournal of the North American Benthological Society
dc.source.journalissue2
dc.source.journalvolume25
dc.source.pagination487 - 500
dc.source.urihttps://dx.doi.org/10.1899/0887-3593(2006)25[487:ACORBP]2.0.CO;2
dc.subject.otherQualitat de l'aigua
dc.subject.otherInvertebrats
dc.subject.otherSud-àfrica
dc.subject.otherPenínsula Ibèrica
dc.subject.otherCabal dels rius
dc.subject.otherWater quality
dc.subject.otherInvertebrates
dc.subject.otherSouthern Africa
dc.subject.otherIberian Peninsula
dc.subject.otherStreamflow
dc.subject.otherinfo:eu-repo/semantics/article
dc.subject.otherinfo:eu-repo/semantics/publishedVersion
dc.titleA comparison of rapid bioassessment protocols used in 2 regions with Mediterranean climates, the Iberian Peninsula and South Africa
dc.typeJournal Article
uct.type.publicationResearch
uct.type.resourceJournal Article
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