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:: Volume 30, Issue 1 (4-2021) ::
isfj 2021, 30(1): 25-36 Back to browse issues page
Density and biomass different species of Amphipoda in the southern of Caspian Sea (Goharbaran region)
Mohammad Ali Afraei Bandpei , Gholamreza Salarvand, Hassan Nasrolahzade saravi, Matin Shakori, Mehdi Naderi, Abolghasem Roohi, Reza Daryanabard, Fariba Vahedi, Iraj Rajabi
Iranian Fisheries Science Research Institute
Abstract:   (230 Views)
This study was carried out in line with the Caspian Sea Central Plateau Water Transmission Program in the southern shores of the Caspian Sea and Goharbaran region in 2013-2014. Sampling was carried out monthly at 8 stations at depths of 5, 10 and 15 meters in 2 transects. The purpose of this study was to investigate the relationships between some physico-chemical parameters of water and TOM (total organic matter), distribution, abundance and biomass of different species of Amphipoda in half-lines, depths, stations and seasons. Overall, one species of Niphargoides caspius from the Gammaridae and four species of Stenogammarus similis, Stenogammaus macrorus, Stenogammarus carausuii and Stenogammarus compenus of Pontogammaridae were identified. A total of 15118 individuals of the benthic organisms were counted, in which, S. compresus and N. caspius with 68 and 2 percentages, respectively. Overall, the mean (± standard error) density and biomass of benthic organisms during the period were 128±14.08 ind.m-2 and 0.15±0.01 g.m-2, respectively. According to Spearman test, density of S. carausuii, S. macrorus and S. similis was significantly correlated with sedimentation (sand) (p<0.01). Multivariate cluster analysis based on Spearman's correlation coefficient on the relationship between density and biomass of different species of Amphipoda with some environmental parameters, grain size and total organic matter (TOM) of bed sediments showed that the members of this group belonged to a sand bed and dissolved oxygen are more strongly correlated in which could be due to ecological origin of Amphipoda groups.
Keywords: Density, Biomass, Amphipoda, Goharbaran, Caspian Sea
Full-Text [PDF 742 kb]   (43 Downloads)    
Type of Study: Research | Subject: اكولوژي محيطهاي آبي
Received: 2019/12/8 | Accepted: 2021/04/30 | Published: 2021/04/30
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Afraei Bandpei M A, Salarvand G, Nasrolahzade saravi H, Shakori M, Naderi M, Roohi A, et al . Density and biomass different species of Amphipoda in the southern of Caspian Sea (Goharbaran region). isfj. 2021; 30 (1) :25-36
URL: http://isfj.ir/article-1-2340-en.html


Volume 30, Issue 1 (4-2021) Back to browse issues page

با کسب مجوز از دفتر کمیسیون بررسی نشریات علمی وزارت علوم، تحقیات و فنآوری مجله علمی شیلات بصورت آنلاین می باشد و تعداد محدودی هم به چاپ می رساند. شماره شاپای جدید آن ISSN:2322-5998 است

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