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@ARTICLE{Schenk:910684,
      author       = {Schenk, Janina and Höss, Sebastian and Kleinbölting, Nils
                      and Traunspurger, Walter},
      title        = {{S}uitability of molecular taxonomy for assessing polluted
                      sediments using the ${N}ema{SPEAR}[\%]$ index},
      journal      = {Ecological indicators},
      volume       = {137},
      issn         = {1470-160X},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2022-04056},
      pages        = {108761 -},
      year         = {2022},
      abstract     = {Assessing the ecological consequences of marine and
                      freshwater contamination is an important use of biological
                      indicators. The $NemaSPEAR[\%]$ index is a nematode-based
                      index for the evaluation of sediment quality and an
                      expedient complement to macroinvertebrate-based indicator
                      systems, especially for fine, cohesive sediments. While the
                      $NemaSPEAR[\%]$ index in its original form is
                      morphologically based, in this study the nematode
                      communities of 38 locations with known sediment
                      contamination were analyzed by light microscopy and
                      metabarcoding to demonstrate the validity of a
                      molecular-taxonomy-based $NemaSPEAR[\%]$ index. The results
                      showed that the molecular-based index can reliably
                      distinguish between sites of good, moderate, and bad
                      pollution status. Moreover, a greater congruence with
                      molecular read abundances were obtained after the
                      morphology-based $NemaSPEAR[\%]$ index was corrected for
                      differences in the biomass of different nematode species.
                      However, incomplete reference databases hamper a full
                      congruence between the species inventories recorded in
                      morphological and molecular datasets. Another source of
                      variability is the substantial difference in the biomass
                      (and thus also of gene copies) of different species, thus
                      evidencing a bias in abundance-based calculations of the
                      $NemaSPEAR[\%]$ index. Despite these limitations, the
                      molecular approach provides an expertise-free means of
                      reliable bioindication using one of the most abundant and
                      diverse components of benthic macroinvertebrate communities.
                      Moreover, due to the ubiquity of nematodes, application of
                      the index can be extended to wastewater, biofilm, and other
                      lotic and lentic waters that require regular monitoring.},
      cin          = {IBG-5},
      ddc          = {630},
      cid          = {I:(DE-Juel1)IBG-5-20220217},
      pnm          = {899 - ohne Topic (POF4-899)},
      pid          = {G:(DE-HGF)POF4-899},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000778350200003},
      doi          = {10.1016/j.ecolind.2022.108761},
      url          = {https://juser.fz-juelich.de/record/910684},
}