Using asymmetrical designs for environmental impact assessment of unplanned disturbances

• Type: Article in International Scientific Journal
• Date: 2006

Authors

queiroz, n (Author) Other; lima, fp (Author) Other; ribeiro, pa (Author) Other; pereira, sg (Author) Other; santos, am (Author) FCUP

Journal

Title: Hydrobiologia

Vol. 555

Pages: 223-227

ISSN: 0018-8158

Publisher: Springer Nature

Indexing

ISI Web of Knowledge - 9 Citations

Scopus - 10 Citations

Scientific classification

FOS: Natural sciences > Earth and related Environmental sciences

Other information

Authenticus ID: P-004-NEE

DOI: 10.1007/s10750-005-1118-0

Abstract (EN): Environmental impact assessment of unplanned disturbances is often difficult to accomplish due to the absence of 'before' data for the impacted sites. In an attempt to overcome this problem, a beyond BACI model is used in order to detect possible changes in the temporal patterns of variation when no previous data are available. The model attempted to detect changes in the abundance of macroinvertebrate species inhabiting the intertidal mussel matrix after an oil spill which occurred in northern Portugal. The detection of a significant impact failed, most probably due to low temporal replication. An extension of the analysis, including the hierarchical arrangement of temporal variability in periods, suggests that increasing the number of sampling times may result in a higher efficiency of the model.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 5