Suggested Sampling Methodology for Lake Benthic Macroinvertebrates under the Requirements of the European Water Framework Directive
Autor: | Maria Lazaridou, Dimitra Bobori, Chrysoula Ntislidou |
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Jazyk: | angličtina |
Rok vydání: | 2021 |
Předmět: |
0106 biological sciences
Geography Planning and Development taxa richness sampling effort 010501 environmental sciences Aquatic Science 01 natural sciences Biochemistry modelling Ecoregion Sampling design Profundal zone TD201-500 0105 earth and related environmental sciences Water Science and Technology Hydrology Water supply for domestic and industrial purposes 010604 marine biology & hydrobiology Sampling (statistics) Hydraulic engineering Benthic zone biomonitoring Rarefaction (ecology) Environmental science Spatial variability precision Species richness TC1-978 Greek lakes |
Zdroj: | Water Volume 13 Issue 10 Water, Vol 13, Iss 1353, p 1353 (2021) |
ISSN: | 2073-4441 |
DOI: | 10.3390/w13101353 |
Popis: | The estimation of the number of samples required for reliably monitoring lakes’ benthic macroinvertebrates is difficult due to the natural variability and cost and time constraints. To determine a statistically robust and effective sampling design, we collected benthic macroinvertebrate samples from 15 Greek natural lakes. We compared the spatial and temporal variability of the benthic macroinvertebrate community composition to identify differences among lakes, between lake zones (sublittoral and profundal) and sampling periods. Furthermore, we examined the sampling precision and determined the number of required samples to attain maximum taxa richness. The diminution of the sampling effort was estimated and the desired precision level, considering different benthic macroinvertebrate abundances, was modelled. No temporal or spatial variation between lake zones was observed in communities’ compositions. The precision of our sampling design was adequate, and rarefaction curves revealed an adequate taxa richness (> 70%). The developed model could be applied to assess the required sampling effort in lakes within the Mediterranean ecoregion with similar benthic macroinvertebrate abundances. |
Databáze: | OpenAIRE |
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