Response of sediment-dwelling annelida community in relation to geochemical parameters in the Gorgan Bay, Caspian Sea

This study aimed to investigate the population of annelida communities in relation to environmental factors and heavy metals accumulated in sediments of the Gorgan Bay. The pollution load index and potential ecological risk (PER) were calculated. The results indicated mean concentrations (ppm) of he...

Full description

Saved in:
Bibliographic Details
Published in:International journal of environmental science and technology (Tehran) 2014-10, Vol.11 (7), p.2025-2036
Main Authors: Bastami, K. D., Taheri, M., Bagheri, H., Foshtomi, M. Y., Ganji, S., Haghparast, S., Soltani, F., Hamzehpoor, A., Karimi, B.
Format: Article
Language:English
Subjects:
Annelida
Annelids
Aquatic Pollution
Earth and Environmental Science
Ecology
Ecotoxicology
Environment
Environmental Chemistry
Environmental Science and Engineering
Heavy metals
Nereis diversicolor
Original Paper
Sediments
Soil Science & Conservation
Streblospio gynobranchiata
Tubificidae
Tubificoides
Waste Water Technology
Water Management
Water Pollution Control
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This study aimed to investigate the population of annelida communities in relation to environmental factors and heavy metals accumulated in sediments of the Gorgan Bay. The pollution load index and potential ecological risk (PER) were calculated. The results indicated mean concentrations (ppm) of heavy metals were (mean ± SD) Pb: 11.5 ± 4.88, Cu: 18 ± 8.83, Zn: 42 ± 22.15, Ni: 29.20 ± 14.68, Co: 10.56 ± 14.68, As: 7.77 ± 2.12, Sr: 1,449 ± 902.59 and V: 26.64 ± 10.25. Considering PER, sediments of the Gorgan Bay had low ecological risk. Based on abundance data, dominant species were Streblospio gynobranchiata , Nereis diversicolor , Tubificoides fraseri and Tubificidae unknown, respectively. Results of redundancy analysis displayed that T. fraseri and N. diversicolor were associated with high values of Sr. All the species were negatively correlated with As. There were positive correlation between S. gynobranchiata and N. diversicolor with values of clay, salinity, depth and silt. The present study provided the relative importance of heavy metals and environmental variables which partly assist in structuring assemblages of annelida in a transitional area.
ISSN:1735-1472
1735-2630
DOI:10.1007/s13762-014-0658-0