Study of diversity and abundance of Chironomidae larvae in Sefidroud estuary (south Caspian Sea)

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Tavol Koteri Meysam; MOSAVI NADOSHAN REZVAN

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Journal: JOURNAL OF MARINE BIOLOGY Year:2019 | Volume:10 | Issue:40 Page(s): 59-74

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Title

Study of diversity and abundance of Chironomidae larvae in Sefidroud estuary (south Caspian Sea)

Author(s)

Tavol Koteri Meysam | MOSAVI NADOSHAN REZVAN | Issue Writer Certificate

Keywords

Chironomidae larvaeQ1

DistributionQ2

AbundanceQ2

SefidroudQ2

Caspian SeaQ2

Abstract

Diversity and Abundance of Chironomidae larvae in Sefidroud estuary (south Caspian Sea basin), in order to determine of diversity and Distribution pattern and how their relationship with environmental conditions were studied. Sampling of substrate sediments was carried out bimonthly from November 2014 to September 2015, using Van Veen grab (0. 03 m2). Sampling was carried out at three stations (S1 in the river, S2 in estuary and S3 in the marine), with three replicates. Environmental factors in water such as temperature and salinity and sediment relevant factors such as grain size and total organic matter percentage (TOM) were measured. In the present study, 11 genera belong to three subfamilies, including Chironominae (5 genera), Orthocladinae (5 genera) and Tanypodinae (1 genera) were identified. The highest average Abundance was related to procladius (300 ± 165 ind. m-2) in river station (S1) in March and the lowest for Paratendipes (11± 6 ind. m-2) in estuary station (S2) in July. Results of temporal Distribution showed that the highest and lowest Abundance of Chironomidae larvae were in March (149 ± 75 ind. m-2) and in July (25. 6 ± 14. 6 ind. m-2), respectively which showed significant difference (P<0. 05). Spatial Distribution of Chironomidae larvae among sampling stations showed significant difference (P<0. 05), as river station (S1) was higher Abundance (96. 8 ± 52. 5 ind. m-2) than estuary station (S2) (54. 6 ± 27. 8 ind. m-2) and marine station (S3) (0 ± 0 ind. m-2). At the marine station (S3) no specimen of Chironomidae larvae was found. A significant correlation (P<0. 05) between the Abundance of Chironomidae larvae and environmental variables in water and sediment were not observed. Among the studied environmental factors, water salinity and sediment grain size have the most effective on the Distribution and Abundance of Chironomidae larvae.

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APA: Copy

Tavol Koteri, Meysam, & MOSAVI NADOSHAN, REZVAN. (2019). Study of diversity and abundance of Chironomidae larvae in Sefidroud estuary (south Caspian Sea). JOURNAL OF MARINE BIOLOGY, 10(40 ), 59-74. SID. https://sid.ir/paper/372209/en

Vancouver: Copy

Tavol Koteri Meysam, MOSAVI NADOSHAN REZVAN. Study of diversity and abundance of Chironomidae larvae in Sefidroud estuary (south Caspian Sea). JOURNAL OF MARINE BIOLOGY[Internet]. 2019;10(40 ):59-74. Available from: https://sid.ir/paper/372209/en

IEEE: Copy

Meysam Tavol Koteri, and REZVAN MOSAVI NADOSHAN, “Study of diversity and abundance of Chironomidae larvae in Sefidroud estuary (south Caspian Sea),” JOURNAL OF MARINE BIOLOGY, vol. 10, no. 40 , pp. 59–74, 2019, [Online]. Available: https://sid.ir/paper/372209/en

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