Journal of Marine Science and Technology

Journal of Marine Science and Technology

Distribution and Frequency of Macrobenthic community in Southern Coasts of Caspian Sea (Astara-Chaboksar)

Document Type : Original Manuscript

Authors
Maryam GhasemiTirtash 1
Ahamd Savari 2
bita archangi 3
Nasrin Sakhaei 4
Neda Mehdipour 5
1 Khorramshahr Marine University of Marine Science and Technology
2 Khorramshahr Marine University
3 staff member- School of Marine Biology, Faculty of Marine Science and Oceanography, Khoramshahr University of Marine science and Technology
4 Khoramshahr University of Marine Science and Technology, Faculty of Marine Science
5 Iranian National Institute of Oceanography
10.22113/jmst.2017.50435
Abstract
Monitoring of benthic communities is important factor in ecosystem health studies. The Caspian Sea is considered as an independent zoogeographical region due to its diversity, specificity and endemism of its fauna. For studying frequency and distribution patterns of macrobenthic community, 5 transects along the Southern Coasts of Caspian Sea from Astara to Chaboksar were sampled. In each transect 3 stations with the depth of 1,5 and 10 meters were selected in perpendicular line to the beach .Physical parameters such as Temperature, Salinity, Dissolved Oxygen and pH were measured in addition to sediment grain size. Sampling has done twice a year (winter 2014 and summer 2015).Totally 38 macro benthos species were identified. Gastropods of Hydrobiidae family and polychaet Streblospio gynobranchiata were the dominant group with the contribution of 80% of total macrobenthos population. Average number of total benthos was 2250 individual/m2 in winter and 2630 individual/m2 in summer. Non-parametric statistical tests showed significant difference between number and frequency of species in different depths (p
Keywords
Benthic habitat
Macro benthos community
Caspian Sea

Subjects

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  • Receive Date 06 May 2017
  • Revise Date 14 September 2017
  • Accept Date 23 September 2017
  • Publish Date 21 November 2020