Abstract:
:/ Time and money could be saved and better invested on environmental monitoring and assessment programs if redundant elements in biological communities were identified. Either aggregation of species into higher taxonomic groupings or selection of indicator taxa are known procedures to eliminate redundancy in large faunal data sets. One further step, the analysis of data without reference to a taxonomic scale, is proposed here. A nondestructive method to just count burrows on sediment surfaces proved adequately suitable to relate faunal responses to water dissolved-oxygen deficiencies along a severely polluted estuary. Consequently, not only taxonomic activities but also the classical destructive approaches separating biota from sediments could be deemed redundant when applied to this case study. Finally, we obtained an extensive benchmark of the situation before the impact is mitigated through the implementation of a sewerage plan promoted by the local water authority. This will serve to: (1) measure the potential recovery of defaunated sediments and (2) evaluate the efficacy of the vast engineering civil work in abating pollution in the near future.KEY WORDS: Redundancy; Faunal surveys; Burrow counts; Hypoxia; Cost effectivenesshttp://link.springer-ny.com/link/service/journals/00267/bibs/24n3p415.html
journal_name
Environ Managejournal_title
Environmental managementauthors
Saiz-Salinas JI,González-Oreja JAdoi
10.1007/s002679900243keywords:
subject
Has Abstractpub_date
1999-10-01 00:00:00pages
415-420issue
3eissn
0364-152Xissn
1432-1009pii
2025journal_volume
24pub_type
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