{"title":"黑海硫代硫酸盐和亚硫酸盐的垂直分布","authors":"M. N. Rimskaya-Korsakova, A. V. Dubinin","doi":"10.1134/s1028334x2460172x","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Data on the vertical distribution of thiosulfate and sulfite by derivatization with monobromobimane in the water column of the Black Sea were obtained for the first time. Thiosulfate and sulfite appeared in detectable quantities below the redox interface along with the appearance of hydrogen sulfide. On the continental slope, the concentration of sulfite reaches 1.12 µM, and that of thiosulfate 0.53 µM in sea water with a potential density of 16.40–16.80 kg/m<sup>3</sup>. In the deep part of the sea at a depth of 400 m (potential density 16.96 kg/m<sup>3</sup>), the concentrations of sulfite and thiosulfate reach their maximum values of 1.74 and 0.98 µM, respectively. The comparison of data on thiosulfate obtained after filtration and without filtration showed that in the upper part of the anaerobic layer, up to 100% of thiosulfate is associated with bacterioplankton; its proportion gradually decreases to a depth of 600 m. These data and the correlation with sulfite and particulate organic carbon suggest that, in the upper part of the anaerobic zone, thiosulfate and sulfite obtained as a result of activity of chemoautotrophic bacteria are dominant.</p>","PeriodicalId":11352,"journal":{"name":"Doklady Earth Sciences","volume":null,"pages":null},"PeriodicalIF":0.7000,"publicationDate":"2024-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Vertical Distribution of Thiosulfate and Sulfite in the Black Sea\",\"authors\":\"M. N. Rimskaya-Korsakova, A. V. Dubinin\",\"doi\":\"10.1134/s1028334x2460172x\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<h3 data-test=\\\"abstract-sub-heading\\\">Abstract</h3><p>Data on the vertical distribution of thiosulfate and sulfite by derivatization with monobromobimane in the water column of the Black Sea were obtained for the first time. Thiosulfate and sulfite appeared in detectable quantities below the redox interface along with the appearance of hydrogen sulfide. On the continental slope, the concentration of sulfite reaches 1.12 µM, and that of thiosulfate 0.53 µM in sea water with a potential density of 16.40–16.80 kg/m<sup>3</sup>. In the deep part of the sea at a depth of 400 m (potential density 16.96 kg/m<sup>3</sup>), the concentrations of sulfite and thiosulfate reach their maximum values of 1.74 and 0.98 µM, respectively. The comparison of data on thiosulfate obtained after filtration and without filtration showed that in the upper part of the anaerobic layer, up to 100% of thiosulfate is associated with bacterioplankton; its proportion gradually decreases to a depth of 600 m. These data and the correlation with sulfite and particulate organic carbon suggest that, in the upper part of the anaerobic zone, thiosulfate and sulfite obtained as a result of activity of chemoautotrophic bacteria are dominant.</p>\",\"PeriodicalId\":11352,\"journal\":{\"name\":\"Doklady Earth Sciences\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.7000,\"publicationDate\":\"2024-04-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Doklady Earth Sciences\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://doi.org/10.1134/s1028334x2460172x\",\"RegionNum\":4,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"GEOSCIENCES, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Doklady Earth Sciences","FirstCategoryId":"89","ListUrlMain":"https://doi.org/10.1134/s1028334x2460172x","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"GEOSCIENCES, MULTIDISCIPLINARY","Score":null,"Total":0}
Vertical Distribution of Thiosulfate and Sulfite in the Black Sea
Abstract
Data on the vertical distribution of thiosulfate and sulfite by derivatization with monobromobimane in the water column of the Black Sea were obtained for the first time. Thiosulfate and sulfite appeared in detectable quantities below the redox interface along with the appearance of hydrogen sulfide. On the continental slope, the concentration of sulfite reaches 1.12 µM, and that of thiosulfate 0.53 µM in sea water with a potential density of 16.40–16.80 kg/m3. In the deep part of the sea at a depth of 400 m (potential density 16.96 kg/m3), the concentrations of sulfite and thiosulfate reach their maximum values of 1.74 and 0.98 µM, respectively. The comparison of data on thiosulfate obtained after filtration and without filtration showed that in the upper part of the anaerobic layer, up to 100% of thiosulfate is associated with bacterioplankton; its proportion gradually decreases to a depth of 600 m. These data and the correlation with sulfite and particulate organic carbon suggest that, in the upper part of the anaerobic zone, thiosulfate and sulfite obtained as a result of activity of chemoautotrophic bacteria are dominant.
期刊介绍:
Doklady Earth Sciences is a journal that publishes new research in Earth science of great significance. Initially the journal was a forum of the Russian Academy of Science and published only best contributions from Russia. Now the journal welcomes submissions from any country in the English or Russian language. Every manuscript must be recommended by Russian or foreign members of the Russian Academy of Sciences.