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Caspian Journal of Enviromental Sciences، جلد ۲۰، شماره ۱، صفحات ۱۰۱-۱۰۶
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عنوان انگلیسی Spatial variability in strontium to calcium in the Caspian Sea: Recognition of starry sturgeon stocks from the pectoral fin spine chemistry
چکیده انگلیسی مقاله One of the fundamental hypotheses in aquatic ecology deals with the recognition of fish stocks. The present study tested the spatial dynamics of starry sturgeon stocks across environmental gradients by spatial variability in strontium to calcium in the pectoral fin spine. Forty samples of starry sturgeon were collected from the north and south of the Caspian Sea. A quantitative method was used to examine stocks using digested pectoral fin spine, reflecting habitat characters of fish. Parts of pectoral fin spines from adult starry sturgeon were separated and analyzed using Inductively Coupled Plasma- Mass Spectrometry (ICP-MS). Comparisons of Sr/Ca ratios in digested spines of the fish from north and south of the Caspian Sea demonstrated that Sr/Ca varied in the region and this significance was reflected in the spine as well. Our results for starry sturgeon support the use of spine Sr/Ca as a proxy for ambient levels throughout their life-history, confident interpretation of life history from spine Sr/Ca chronologies, however likely require matching time series of ambient Sr/Ca in the water bodies of interest.
کلیدواژه‌های انگلیسی مقاله Trace element, Caspian Sea, Sr/Ca, Habitat, Starry sturgeon
نویسندگان مقاله Shima Bakhshalizadeh |
Department of Marine Science, Caspian Sea Basin Research Center, University of Guilan, Rasht, Iran

Botagoz Murasovna Nasibulina |
Faculty of Geology & Geography/Innovative Natural Institute, Astrakhan State University, Shaumyana Str. 1, Astrakhan, Russia

Tatyana Fedorovna Kurochkina |
Faculty of Geology & Geography/Innovative Natural Institute, Astrakhan State University, Shaumyana Str. 1, Astrakhan, Russia

Attaala Muhaysin Ali |
Faculty of Environmental Sciences and Marine Biology, Hadhramout University, Mukalla, Yemen

Mohammad Sodagar |
Department of fishery Sciences, University of Agricultural Sciences and Natural Resources of Gorgan, Iran

Leonid Alexandrovich Zykov |
Faculty of Geology & Geography/Innovative Natural Institute, Astrakhan State University, Shaumyana Str. 1, Astrakhan, Russia

نشانی اینترنتی https://cjes.guilan.ac.ir/article_5396_60499c9a8af9d1a88b2d937e64805ac4.pdf
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