Donya Gharib Khalkhal, Javid Imanpur namin, M. Sattari
ABSTRACT
抽象
{"title":"Concentration of heavy metals in different tissues (muscle, liver, gonad, skin, kidney) of Roach (Rutilus rutilus caspicus) in Guilan coasts of the Caspian Sea","authors":"Donya Gharib Khalkhal, Javid Imanpur namin, M. Sattari","doi":"10.52547/joc.13.51.8","DOIUrl":"https://doi.org/10.52547/joc.13.51.8","url":null,"abstract":"ABSTRACT","PeriodicalId":16640,"journal":{"name":"Journal of Oceanography","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46849842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"First record, taxonomy and temporal/spatial dispersion pattern of species in genus Pontella (Crustacea:Copepoda:Calanoida) from coastal/estuarine waters of Bushehr","authors":"R. Mousavi nadushan, منیر غیاث آبادی","doi":"10.52547/joc.13.51.6","DOIUrl":"https://doi.org/10.52547/joc.13.51.6","url":null,"abstract":"","PeriodicalId":16640,"journal":{"name":"Journal of Oceanography","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42758076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effectiveness of viscous damper on vibrations control of full -height lattice tower under wave and wind excitations in time-domain","authors":"Marzieh Emami, Reza Dezvareh, S. A. Mousavi","doi":"10.52547/joc.13.51.1","DOIUrl":"https://doi.org/10.52547/joc.13.51.1","url":null,"abstract":"ABSTRACT","PeriodicalId":16640,"journal":{"name":"Journal of Oceanography","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70690100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Analyzing Inter-Volatility Structure to Determine Optimum Hedging Ratio for the Ship Fuel","authors":"Mohmmad Amin Kouhbor, H. Yousefi","doi":"10.52547/joc.13.51.4","DOIUrl":"https://doi.org/10.52547/joc.13.51.4","url":null,"abstract":"ABSTRACT","PeriodicalId":16640,"journal":{"name":"Journal of Oceanography","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44923770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Background and Objectives: The Oligo-Miocene marine deposits (Qom Formation) have been widely spread in the Central Iran Zone. According to economic value of these marine deposits, this Formation studied by several researchers. While there are many differences opinion among researchers. For this reason, to solve the existing ambiguities, it is necessary to study with new tools and techniques. Therefore, the present study is the first study aimed at biostratigraphy based on calcareous nannoplankton that has been performed on all succession exposed from the Oligo-Miocene marine deposits (members a to f of the Qom Formation). Methods: The studied deposits are located in the middle part of the Central Iran Zone and more precisely in the Navab anticline (northeast of Kashan city), which has a thickness of 417 meters. Due to the location and expansion of all members in this section, it has been a very suitable area for biostratigraphic assessments comparable to world standard models. In this study, a total of 370 microscopic slides prepared from rock samples were studied to the determination of the calcareous nannoplankton and accurately separate world standard biological zones. Findings: The present study led to the identification of 72 species belonging to 18 genera of this valuable group of the planktonic micro-organisms. According to the identified index species, standard nannoplankton biozones of the NP25 and NN1-NN4 were separated from this surface section of the Qom Formation. In addition, the equivalent biozones such as CNO5-6, CNM1- CNM6 as well as zones and subzones CP19b, CN1a, b, c, CN2- CN3, which belonging to the newest biozonation patterns, were also separated in this study. Conclusion: Therefore, based on the geological time value of the separated biozones, the age of late Chattian to late Burdigalian-early Langhian was proposed for the Qom Formation in the Navab anticline section. In this study, for the first time, the important chronostratigraphic boundaries such as the Paleogene- Neogene system boundary (or Chattian-Aquitanian stage boundary) in the upper parts of sub-member "c1", the Aquitanian- Burdigalian stage boundary at the base of member "e" and Burdigalian- Langhian in the upper part of member "f", were disaggregated based on biostratigraphic criteria.
{"title":"Biostratigraphy of Oligo-Miocene marine deposits of Central Iran basin based on calcareous nannoplanktons","authors":"M. Parandavar, F. Hadavi, Sayed Ali Aghanabati","doi":"10.52547/joc.13.51.2","DOIUrl":"https://doi.org/10.52547/joc.13.51.2","url":null,"abstract":"Background and Objectives: The Oligo-Miocene marine deposits (Qom Formation) have been widely spread in the Central Iran Zone. According to economic value of these marine deposits, this Formation studied by several researchers. While there are many differences opinion among researchers. For this reason, to solve the existing ambiguities, it is necessary to study with new tools and techniques. Therefore, the present study is the first study aimed at biostratigraphy based on calcareous nannoplankton that has been performed on all succession exposed from the Oligo-Miocene marine deposits (members a to f of the Qom Formation). Methods: The studied deposits are located in the middle part of the Central Iran Zone and more precisely in the Navab anticline (northeast of Kashan city), which has a thickness of 417 meters. Due to the location and expansion of all members in this section, it has been a very suitable area for biostratigraphic assessments comparable to world standard models. In this study, a total of 370 microscopic slides prepared from rock samples were studied to the determination of the calcareous nannoplankton and accurately separate world standard biological zones. Findings: The present study led to the identification of 72 species belonging to 18 genera of this valuable group of the planktonic micro-organisms. According to the identified index species, standard nannoplankton biozones of the NP25 and NN1-NN4 were separated from this surface section of the Qom Formation. In addition, the equivalent biozones such as CNO5-6, CNM1- CNM6 as well as zones and subzones CP19b, CN1a, b, c, CN2- CN3, which belonging to the newest biozonation patterns, were also separated in this study. Conclusion: Therefore, based on the geological time value of the separated biozones, the age of late Chattian to late Burdigalian-early Langhian was proposed for the Qom Formation in the Navab anticline section. In this study, for the first time, the important chronostratigraphic boundaries such as the Paleogene- Neogene system boundary (or Chattian-Aquitanian stage boundary) in the upper parts of sub-member \"c1\", the Aquitanian- Burdigalian stage boundary at the base of member \"e\" and Burdigalian- Langhian in the upper part of member \"f\", were disaggregated based on biostratigraphic criteria.","PeriodicalId":16640,"journal":{"name":"Journal of Oceanography","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42796894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Alimoradi, M. Baaghideh, A. Entezari, Mohsen Hamidianpour, Teimour Aminirad
Background and Objectives: Coral ecosystems, like other natural habitats, are under the influence of global warming. Every year we see the bleaching of corals in different parts of the world. Since the physical parameters of seawater are affected by meteorological phenomena, so in this study using ten-year data of oceanographic buoys, the effect of physical parameters of seawater including water surface temperature, salinity, acidity and electrical conductivity on the phenomenon of bleaching of branching corals in Chabahar Bay was investigated. Methods: For this purpose, the trend of multi-year data of marine parameters was determined by non-parametric Mann-Kendall test. In the next step, the Pearson correlation test showed the correlation between seawater parameters and choreographed Zooxanthellae algae color score data as a coral health index produced by the authors during long-term diving operations using the Coral Watch method. Findings: The results of this study showed that among the four parameters: water surface temperature, electrical conductivity, acidity and salinity, the highest correlation and the most effective independent variable in multivariate regression between coral health and seawater parameters is concern to EC. Conclusion: Due to the insignificance of the increasing trend of water surface temperature in previous years and the existence of a significant negative correlation at the level of 0.01 between the health status of corals and water surface temperature, fortunately, the branching corals of Chabahar Bay have been in good condition. As human and sea pollutants are controlled in the coming years. We will see the survival of this valuable ecosystem.
{"title":"Investigation of the effect of physical parameters of seawater on the health of branching corals in Chabahar Bay","authors":"M. Alimoradi, M. Baaghideh, A. Entezari, Mohsen Hamidianpour, Teimour Aminirad","doi":"10.52547/joc.13.51.3","DOIUrl":"https://doi.org/10.52547/joc.13.51.3","url":null,"abstract":"Background and Objectives: Coral ecosystems, like other natural habitats, are under the influence of global warming. Every year we see the bleaching of corals in different parts of the world. Since the physical parameters of seawater are affected by meteorological phenomena, so in this study using ten-year data of oceanographic buoys, the effect of physical parameters of seawater including water surface temperature, salinity, acidity and electrical conductivity on the phenomenon of bleaching of branching corals in Chabahar Bay was investigated. Methods: For this purpose, the trend of multi-year data of marine parameters was determined by non-parametric Mann-Kendall test. In the next step, the Pearson correlation test showed the correlation between seawater parameters and choreographed Zooxanthellae algae color score data as a coral health index produced by the authors during long-term diving operations using the Coral Watch method. Findings: The results of this study showed that among the four parameters: water surface temperature, electrical conductivity, acidity and salinity, the highest correlation and the most effective independent variable in multivariate regression between coral health and seawater parameters is concern to EC. Conclusion: Due to the insignificance of the increasing trend of water surface temperature in previous years and the existence of a significant negative correlation at the level of 0.01 between the health status of corals and water surface temperature, fortunately, the branching corals of Chabahar Bay have been in good condition. As human and sea pollutants are controlled in the coming years. We will see the survival of this valuable ecosystem.","PeriodicalId":16640,"journal":{"name":"Journal of Oceanography","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45727950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mostafa Mahdavi̇fard, Shahin Jafari, Yeganeh Chookhachian, S. Karimzadeh
ABSTRACT
摘要
{"title":"Observation of maritime traffic in southern Iran during the Covid-19 outbreak using Sentinel-1 images In the Google Earth Engine Platform","authors":"Mostafa Mahdavi̇fard, Shahin Jafari, Yeganeh Chookhachian, S. Karimzadeh","doi":"10.52547/joc.13.51.5","DOIUrl":"https://doi.org/10.52547/joc.13.51.5","url":null,"abstract":"ABSTRACT","PeriodicalId":16640,"journal":{"name":"Journal of Oceanography","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41862119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-09-24DOI: 10.1007/s10872-022-00662-5
Akiyuki Kenmochi, Daisuke Takahashi, Hiroyuki Matsuura, T. Yoshikawa, R. Sohrin, Y. Obayashi, H. Kuroda, J. Nishikawa
{"title":"Cladoceran communities in offshore Suruga Bay, Japan: How are they formed?","authors":"Akiyuki Kenmochi, Daisuke Takahashi, Hiroyuki Matsuura, T. Yoshikawa, R. Sohrin, Y. Obayashi, H. Kuroda, J. Nishikawa","doi":"10.1007/s10872-022-00662-5","DOIUrl":"https://doi.org/10.1007/s10872-022-00662-5","url":null,"abstract":"","PeriodicalId":16640,"journal":{"name":"Journal of Oceanography","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2022-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43215351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-09-24DOI: 10.1007/s10872-022-00663-4
K. Sugino, A. Oka
{"title":"Zinc and silicon biogeochemical decoupling in the North Pacific Ocean","authors":"K. Sugino, A. Oka","doi":"10.1007/s10872-022-00663-4","DOIUrl":"https://doi.org/10.1007/s10872-022-00663-4","url":null,"abstract":"","PeriodicalId":16640,"journal":{"name":"Journal of Oceanography","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2022-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48955826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-09-21DOI: 10.1007/s10872-022-00661-6
Nan Yuan, H. Mitsudera
{"title":"Cross-shelf overturning in geostrophic-stress-dominant coastal fronts","authors":"Nan Yuan, H. Mitsudera","doi":"10.1007/s10872-022-00661-6","DOIUrl":"https://doi.org/10.1007/s10872-022-00661-6","url":null,"abstract":"","PeriodicalId":16640,"journal":{"name":"Journal of Oceanography","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2022-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45648203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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