Dissemin is shutting down on January 1st, 2025

Published in

Faculdade de Letras, Brazilian Journal of Oceanography, 4(63), p. 363-378, 2015

DOI: 10.1590/s1679-87592015074606304

Links

Tools

Export citation

Search in Google Scholar

Performance comparison of biotic indices measuring the ecological status base on soft-bottom macroinvertebrates: A study along the shallow Gomishan lagoon (Southeast Caspian Sea)

Journal article published in 2015 by Nabee Basatnia, Seyed Abbas Hosseini, Rasoul Ghorbani, Pablo Muniz ORCID
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

Full text: Download

Green circle
Preprint: archiving allowed
Green circle
Postprint: archiving allowed
Green circle
Published version: archiving allowed
Data provided by SHERPA/RoMEO

Abstract

Abstract This paper aims to test the suitability of some biotic indices for their application in Southeast Caspian Sea. For this purpose, the ecological quality of the Gomishan lagoon was assessed using three biotic indices (AMBI, BENTIX, BOPA) during summer and autumn 2010. The results from the application of the biotic indices do not highlight a clear distinction between the stations. The results show that two of the indices (AMBI and BENTIX) are very close in terms of diagnosis (good and high) and seem to generally perform better than BOPA. In addition, Principal Component Analysis (PCA) based on abiotic parameters showed clear spatial and temporal differences in environmental variables. However, at this shallow sites with low human pressure and high water residence times, such benthic community composition can be associated with physical stress due to salinity increase and to changes in environmental characteristics, triggered by conventional seasonal variations. Natural variability of transitional waters is a crucial factor for a correct evaluation of the ecological condition of macroinvertebrate communities across the lagoonal system.