首页 > 最新文献

Indian Journal of Geo-Marine Sciences最新文献

英文 中文
New insight in the determination of thermodynamic equilibrium thickness using heat budget over Barents Sea 利用巴伦支海热收支确定热力学平衡厚度的新见解
IF 0.5 4区 地球科学 Q4 Earth and Planetary Sciences Pub Date : 2022-01-01 DOI: 10.56042/ijms.v51i11.3504
{"title":"New insight in the determination of thermodynamic equilibrium thickness using heat budget over Barents Sea","authors":"","doi":"10.56042/ijms.v51i11.3504","DOIUrl":"https://doi.org/10.56042/ijms.v51i11.3504","url":null,"abstract":"","PeriodicalId":51062,"journal":{"name":"Indian Journal of Geo-Marine Sciences","volume":"3 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75432551","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}
引用次数: 0
Spatial and temporal variation in the distribution and abundance of Synechococcus spp., picoeukaryotes, nanoeukaryotes and Chlorophyll-a in the Eastern Black Sea 黑海东部聚藻球菌、微真核、纳米真核和叶绿素-a分布及丰度的时空变化
IF 0.5 4区 地球科学 Q4 Earth and Planetary Sciences Pub Date : 2022-01-01 DOI: 10.56042/ijms.v51i03.43076
U. Dokuzparmak, A. Feyzioğlu
The abundance and distribution of Synechococcus spp., picoeukaryotes, nanoeukaryotes, and chlorophyll- a , were studied through the water column (from 0 – 100 m depth) during four different seasons along the Eastern Black Sea coast. Based on annual average values, Synechococcus spp. were numerically dominant with an annual average of 3.40×10 4 cells mL -1 , ranging between 0.51 and 9.93×10 4 cells mL -1 , followed by picoeukaryotes with an annual average of 0.79×10 3 cells mL -1 , ranging from 0.05 to 3.93×10 3 cells mL -1 . The nanoeukaryotes were the least abundant group in the region, with an annual average of 3.26×10 2 cells mL -1 ranging between 0.12 and 17.98×10 2 cells mL -1 . The minimum and maximum values of Synechococcus spp. and picoeukaryotes were found at stations from Fatsaand Arhavi, while nanoeukaryotes had their minimum-maximum abundance at stations from Yomraand Ordu. Overall, the Synechococcus spp. seasonal cycle exhibited a bimodal distribution, with one peak in summer and the other in autumn. In contrast, picoeukaryote and nanoeukaryote seasonal cycles had unimodal distributions, with peaks during winter. The abundance of Synechococcus spp. was significantly negatively correlated with depth during winter, while picoeukaryotes tended to notably correlate with depth during autumn and winter ( p < 0.05). Contrary, the abundance of nanoeukaryotes was considerably negatively correlated with depth in all seasons. The chlorophyll- a showed a striking negative correlation with depth during spring and autumn. There were particularly positive correlations among Synechococcus spp., picoeukaryotes, nanoeukaryotes and chlorophyll- a , implying their coexistence. However, the picoeukaryotes were significantly negatively-correlated with nanoeukaryotes.
对黑海东部沿岸4个季节水体(0 ~ 100 m深度)中聚珠球菌、微真核生物、纳米真核生物和叶绿素- a的丰度和分布进行了研究。从年平均值来看,聚珠球菌在数量上处于优势地位,年平均值为3.40×10 4个细胞mL -1,范围在0.51 ~ 9.93×10 4个细胞mL -1之间,其次是皮真核生物,年平均值为0.79×10 3个细胞mL -1,范围在0.05 ~ 3.93×10 3个细胞mL -1之间。纳米真核生物是该地区最不丰富的群体,年平均3.26×10 2 cells mL -1介于0.12和17.98×10 2 cells mL -1之间。聚球菌和微真核生物丰度的最大值和最小丰度出现在fatsai和Arhavi站点,而纳米真核生物丰度的最大值和最小丰度出现在yomrai和Ordu站点。总体而言,聚珠球菌的季节周期呈夏季和秋季的双峰分布。微真核生物和纳米真核生物的季节周期呈单峰型分布,在冬季达到高峰。聚球菌丰度在冬季与深度呈显著负相关,而微真核生物丰度在秋冬季与深度呈显著相关(p < 0.05)。相反,纳米真核生物的丰度在所有季节都与深度呈显著负相关。叶绿素- a在春季和秋季与深度呈显著负相关。聚珠球菌与微真核、纳米真核和叶绿素- a之间存在显著正相关关系,表明它们是共存的。而微真核细胞与纳米真核细胞呈显著负相关。
{"title":"Spatial and temporal variation in the distribution and abundance of Synechococcus spp., picoeukaryotes, nanoeukaryotes and Chlorophyll-a in the Eastern Black Sea","authors":"U. Dokuzparmak, A. Feyzioğlu","doi":"10.56042/ijms.v51i03.43076","DOIUrl":"https://doi.org/10.56042/ijms.v51i03.43076","url":null,"abstract":"The abundance and distribution of Synechococcus spp., picoeukaryotes, nanoeukaryotes, and chlorophyll- a , were studied through the water column (from 0 – 100 m depth) during four different seasons along the Eastern Black Sea coast. Based on annual average values, Synechococcus spp. were numerically dominant with an annual average of 3.40×10 4 cells mL -1 , ranging between 0.51 and 9.93×10 4 cells mL -1 , followed by picoeukaryotes with an annual average of 0.79×10 3 cells mL -1 , ranging from 0.05 to 3.93×10 3 cells mL -1 . The nanoeukaryotes were the least abundant group in the region, with an annual average of 3.26×10 2 cells mL -1 ranging between 0.12 and 17.98×10 2 cells mL -1 . The minimum and maximum values of Synechococcus spp. and picoeukaryotes were found at stations from Fatsaand Arhavi, while nanoeukaryotes had their minimum-maximum abundance at stations from Yomraand Ordu. Overall, the Synechococcus spp. seasonal cycle exhibited a bimodal distribution, with one peak in summer and the other in autumn. In contrast, picoeukaryote and nanoeukaryote seasonal cycles had unimodal distributions, with peaks during winter. The abundance of Synechococcus spp. was significantly negatively correlated with depth during winter, while picoeukaryotes tended to notably correlate with depth during autumn and winter ( p < 0.05). Contrary, the abundance of nanoeukaryotes was considerably negatively correlated with depth in all seasons. The chlorophyll- a showed a striking negative correlation with depth during spring and autumn. There were particularly positive correlations among Synechococcus spp., picoeukaryotes, nanoeukaryotes and chlorophyll- a , implying their coexistence. However, the picoeukaryotes were significantly negatively-correlated with nanoeukaryotes.","PeriodicalId":51062,"journal":{"name":"Indian Journal of Geo-Marine Sciences","volume":"390 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76596671","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}
引用次数: 1
Volatile bioactive compounds from marine macro-algae and their pharmacological properties 海洋巨藻挥发性生物活性化合物及其药理性质
IF 0.5 4区 地球科学 Q4 Earth and Planetary Sciences Pub Date : 2022-01-01 DOI: 10.56042/ijms.v51i10.2932
R. Vijayaraj, K. Altaff, N. Sri, Kumaran Swarnakala
The present study is aimed at identification of bioactive compounds and their pharmacological properties of four macro-algae ( Hydropuntia edulis , Halymenia venusta , Ulva lactuca and Padina gymnospora ) from the Hare Island, Tuticorin district of Tamil Nadu, India. The characterization of ethanol extracted compounds was done using GC-MS techniques. The major secondary metabolites such as alkaloids, phenol, saponins, flavonoids, steroids, terpenoids and tannins were recorded from all the algal samples. The numbers of major volatile compounds recorded in the GC-MS analysis are 32, 19, 8 and 14 in H. edulis , H. venusta , U. lactuca and P. gymnospora , respectively. All these identified compounds could be of therapeutic values for many acute and chronic diseases and disorders. These secondary metabolites belong to alkanes, aliphatic amines, aromatics, aldehydes, 1°, 2° amines and ketone groups. Many of these characterized compounds could be used for therapeutic purposes.
本研究旨在鉴定印度泰米尔纳德邦Tuticorin地区Hare岛的四种大型藻类(Hydropuntia edulis, Halymenia venusta, Ulva lactuca和Padina gymnospora)的生物活性化合物及其药理特性。采用气相色谱-质谱技术对乙醇提取的化合物进行表征。记录了所有藻类样品的主要次生代谢产物,如生物碱、酚、皂苷、黄酮类、类固醇、萜类和单宁。经GC-MS分析,edulis、H. venusta、U. lactuca和P. gymnospora中主要挥发性化合物的数量分别为32、19、8和14。所有这些已鉴定的化合物可能对许多急慢性疾病和失调具有治疗价值。这些次生代谢物属于烷烃、脂肪胺、芳烃、醛、1°、2°胺和酮基。许多这些特征化合物可用于治疗目的。
{"title":"Volatile bioactive compounds from marine macro-algae and their pharmacological properties","authors":"R. Vijayaraj, K. Altaff, N. Sri, Kumaran Swarnakala","doi":"10.56042/ijms.v51i10.2932","DOIUrl":"https://doi.org/10.56042/ijms.v51i10.2932","url":null,"abstract":"The present study is aimed at identification of bioactive compounds and their pharmacological properties of four macro-algae ( Hydropuntia edulis , Halymenia venusta , Ulva lactuca and Padina gymnospora ) from the Hare Island, Tuticorin district of Tamil Nadu, India. The characterization of ethanol extracted compounds was done using GC-MS techniques. The major secondary metabolites such as alkaloids, phenol, saponins, flavonoids, steroids, terpenoids and tannins were recorded from all the algal samples. The numbers of major volatile compounds recorded in the GC-MS analysis are 32, 19, 8 and 14 in H. edulis , H. venusta , U. lactuca and P. gymnospora , respectively. All these identified compounds could be of therapeutic values for many acute and chronic diseases and disorders. These secondary metabolites belong to alkanes, aliphatic amines, aromatics, aldehydes, 1°, 2° amines and ketone groups. Many of these characterized compounds could be used for therapeutic purposes.","PeriodicalId":51062,"journal":{"name":"Indian Journal of Geo-Marine Sciences","volume":"692 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76849200","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}
引用次数: 1
First record of Bengal reticulated puffer Chelonodontops bengalensis (Tetraodontiformes: Tetraodontidae) from Odisha coast, north-western Bay of Bengal with taxonomic notes 孟加拉湾西北部奥里萨邦海岸首次记录孟加拉网纹河豚(四齿兽目:四齿兽科)并附分类笔记
IF 0.5 4区 地球科学 Q4 Earth and Planetary Sciences Pub Date : 2022-01-01 DOI: 10.56042/ijms.v51i04.34695
S. K. Roul, S. Ghoshb, P. Rohitc
The present study reports the first record of Bengal reticulated puffer, Chelonodontops bengalensis from Odisha coast in the north-western Bay of Bengal based on two specimens (226 – 301 mm SL), each collected from Paradeep and Bahabalpur in 2018 and 2019, respectively. The detailed morphological features of C. bengalensis are provided and compared with its previous records. The species is distinguished from its congeners by having 12 dorsal fin rays, 10 anal fin rays, 18 – 19 pectoral fin rays, 10 – 11 caudal fin rays, nasal organ cup shaped with unequal sized flaps, and dorsal profile of body covered with white spots of various shape and size and ventral side silvery white. Our study indicated the range extension of C. bengalensis from its known geographical range i.e. Bangladesh and West Bengal towards south in the northern Bay of Bengal.
本研究报告了孟加拉湾西北部奥里萨邦海岸的孟加拉网状河豚Chelonodontops bengalensis的首次记录,该记录基于两个标本(226 - 301毫米SL),分别于2018年和2019年在Paradeep和Bahabalpur收集。提供了bengalensis的详细形态特征,并与以往的记录进行了比较。该物种与同类的区别在于有12条背鳍,10条肛鳍,18 - 19条胸鳍,10 - 11条尾鳍,鼻器官杯状,大小不等的皮瓣,身体背部覆盖着各种形状和大小的白色斑点,腹部为银白色。我们的研究表明,C. bengalensis的分布范围在孟加拉湾北部从其已知的地理范围孟加拉国和西孟加拉邦向南扩展。
{"title":"First record of Bengal reticulated puffer Chelonodontops bengalensis (Tetraodontiformes: Tetraodontidae) from Odisha coast, north-western Bay of Bengal with taxonomic notes","authors":"S. K. Roul, S. Ghoshb, P. Rohitc","doi":"10.56042/ijms.v51i04.34695","DOIUrl":"https://doi.org/10.56042/ijms.v51i04.34695","url":null,"abstract":"The present study reports the first record of Bengal reticulated puffer, Chelonodontops bengalensis from Odisha coast in the north-western Bay of Bengal based on two specimens (226 – 301 mm SL), each collected from Paradeep and Bahabalpur in 2018 and 2019, respectively. The detailed morphological features of C. bengalensis are provided and compared with its previous records. The species is distinguished from its congeners by having 12 dorsal fin rays, 10 anal fin rays, 18 – 19 pectoral fin rays, 10 – 11 caudal fin rays, nasal organ cup shaped with unequal sized flaps, and dorsal profile of body covered with white spots of various shape and size and ventral side silvery white. Our study indicated the range extension of C. bengalensis from its known geographical range i.e. Bangladesh and West Bengal towards south in the northern Bay of Bengal.","PeriodicalId":51062,"journal":{"name":"Indian Journal of Geo-Marine Sciences","volume":"29 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72989982","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}
引用次数: 0
The biology of a newly discovered sardine: Length-weight relationship and condition factor of Amblygaster indiana Mary, Balasubramanian, Selvaraju & Shiny, 2017 from the South-west coast of India 新发现沙丁鱼的生物学:Amblygaster indiana Mary, Balasubramanian, Selvaraju & Shiny, 2017来自印度西南海岸的长-重关系和条件因素
IF 0.5 4区 地球科学 Q4 Earth and Planetary Sciences Pub Date : 2022-01-01 DOI: 10.56042/ijms.v51i01.36673
T. Jayakumara, K. K. Lala, S. Muralia, A. A. Maryc, T. T. A. Kumara, A. MishraA, M. Singha
Length-weight relationship (LWR) was estimated for Amblygaster indiana from Eraviputhenthurai, south-west coast of India. The fish samples were collected from to February 2019 from the fish landing centres and fish markets of Eraviputhenthurai, Kanyakumari district of Tamil Nadu. Altogether, 82 specimens were collected from gill nets and shore seines during the period. The value of parameter b in the equation of LWR was estimated to be 3.36 and provides the first estimate of LWR for A. indiana. The value of the condition factor K (1.15) and relative condition factor K n (1.003) in the present study indicates that the fish is in good condition in terms of health, growth, physical, and biological environmental conditions and there seems to be no adverse factor for A. indiana in its current habitat. The current study is also one of the first documented reports on the biological aspects of A. indiana and will be helpful for future research, conservation and sustainable management of the species.
估计了印度西南海岸Eraviputhenthurai的Amblygaster的长度-重量关系(LWR)。鱼类样本于2019年2月至2019年2月从泰米尔纳德邦坎亚库马里地区Eraviputhenthurai的鱼类上岸中心和鱼类市场收集。期间,渔护署透过刺网及围网共收集82个样本。LWR方程中参数b的值估计为3.36,提供了A. indiana的LWR的第一次估计。本研究条件因子K(1.15)和相对条件因子K n(1.003)的值表明,该鱼在健康、生长、物理和生物环境条件方面处于良好状态,在其当前栖息地似乎不存在不利因素。本研究也是第一批关于印第安那麻的生物学方面的文献报道之一,将对该物种的未来研究、保护和可持续管理有所帮助。
{"title":"The biology of a newly discovered sardine: Length-weight relationship and condition factor of Amblygaster indiana Mary, Balasubramanian, Selvaraju & Shiny, 2017 from the South-west coast of India","authors":"T. Jayakumara, K. K. Lala, S. Muralia, A. A. Maryc, T. T. A. Kumara, A. MishraA, M. Singha","doi":"10.56042/ijms.v51i01.36673","DOIUrl":"https://doi.org/10.56042/ijms.v51i01.36673","url":null,"abstract":"Length-weight relationship (LWR) was estimated for Amblygaster indiana from Eraviputhenthurai, south-west coast of India. The fish samples were collected from to February 2019 from the fish landing centres and fish markets of Eraviputhenthurai, Kanyakumari district of Tamil Nadu. Altogether, 82 specimens were collected from gill nets and shore seines during the period. The value of parameter b in the equation of LWR was estimated to be 3.36 and provides the first estimate of LWR for A. indiana. The value of the condition factor K (1.15) and relative condition factor K n (1.003) in the present study indicates that the fish is in good condition in terms of health, growth, physical, and biological environmental conditions and there seems to be no adverse factor for A. indiana in its current habitat. The current study is also one of the first documented reports on the biological aspects of A. indiana and will be helpful for future research, conservation and sustainable management of the species.","PeriodicalId":51062,"journal":{"name":"Indian Journal of Geo-Marine Sciences","volume":"5 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79756351","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}
引用次数: 0
Diversity of intertidal macrobenthic fauna around Ratnagiri and Sindhudurg districts of Maharashtra, west coast of India 印度西海岸马哈拉施特拉邦Ratnagiri和Sindhudurg地区潮间带大型底栖动物的多样性
IF 0.5 4区 地球科学 Q4 Earth and Planetary Sciences Pub Date : 2022-01-01 DOI: 10.56042/ijms.v51i01.65900
P. Sivaperumala, M. Khota, S. Chakrabortya, A. Pawaseb, A. Jaiswar
Diversity of intertidal macrobenthic community and environmental parameters namely temperature, salinity, pH and DO were assessed near the proposed nuclear power plant site Jaitapur from 2012 to 2014. Analysis of macrobenthic samples revealed the presence of 54 species belonging to 19 different groups. Highest diversity (14 groups) was observed during the post-monsoon (2014) season. At sandy and rocky shores, polychaetes were dominant followed by crustaceans like amphipod, isopod, penaeid shrimps and decapod larvae. Among all inshore stations, diversity was found to be maximum at Ganeshgule (N SW30 kms). Shannon-Weiner diversity index (2.259) and Margalef’s species richness index (2.502) indicated rich diversity at rocky habitats (N SW30 kms). The present study suggests the stable environmental parameters around the Jaitapur Nuclear Power Plant (NPP) sites and is responsible for the rich benthic community. The outcome of the present study may be useful as baseline information on macrobenthos around the proposed Jaitapur NPP site.
2012 - 2014年对斋塔普尔核电站拟建场址附近潮间带大型底栖生物群落多样性及环境参数(温度、盐度、pH和DO)进行了评价。对大型底栖动物样本的分析显示,存在属于19个不同类群的54种。在季风后(2014年)季节观察到最高的多样性(14个类群)。在沙质和岩石海岸,多毛类占主导地位,其次是甲壳类,如片足类、等足类、对虾类和十足类幼虫。在所有近岸站中,甘尼什古尔站(西南30公里)的多样性最大。Shannon-Weiner多样性指数(2.259)和Margalef物种丰富度指数(2.502)表明岩石生境(西北SW30 km)具有丰富的物种多样性。本研究表明,斋塔普尔核电站场址周围的环境参数稳定,并对丰富的底栖生物群落负责。本研究的结果可能是有用的基线信息周围的大型底栖动物的提议的斋塔普尔核电站站点。
{"title":"Diversity of intertidal macrobenthic fauna around Ratnagiri and Sindhudurg districts of Maharashtra, west coast of India","authors":"P. Sivaperumala, M. Khota, S. Chakrabortya, A. Pawaseb, A. Jaiswar","doi":"10.56042/ijms.v51i01.65900","DOIUrl":"https://doi.org/10.56042/ijms.v51i01.65900","url":null,"abstract":"Diversity of intertidal macrobenthic community and environmental parameters namely temperature, salinity, pH and DO were assessed near the proposed nuclear power plant site Jaitapur from 2012 to 2014. Analysis of macrobenthic samples revealed the presence of 54 species belonging to 19 different groups. Highest diversity (14 groups) was observed during the post-monsoon (2014) season. At sandy and rocky shores, polychaetes were dominant followed by crustaceans like amphipod, isopod, penaeid shrimps and decapod larvae. Among all inshore stations, diversity was found to be maximum at Ganeshgule (N SW30 kms). Shannon-Weiner diversity index (2.259) and Margalef’s species richness index (2.502) indicated rich diversity at rocky habitats (N SW30 kms). The present study suggests the stable environmental parameters around the Jaitapur Nuclear Power Plant (NPP) sites and is responsible for the rich benthic community. The outcome of the present study may be useful as baseline information on macrobenthos around the proposed Jaitapur NPP site.","PeriodicalId":51062,"journal":{"name":"Indian Journal of Geo-Marine Sciences","volume":"71 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80409957","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}
引用次数: 0
Trematode parasites in fishes from Chilika: Three new records to India 智利鱼类中的吸虫寄生虫:印度的三个新记录
IF 0.5 4区 地球科学 Q4 Earth and Planetary Sciences Pub Date : 2022-01-01 DOI: 10.56042/ijms.v51i07.51976
{"title":"Trematode parasites in fishes from Chilika: Three new records to India","authors":"","doi":"10.56042/ijms.v51i07.51976","DOIUrl":"https://doi.org/10.56042/ijms.v51i07.51976","url":null,"abstract":"","PeriodicalId":51062,"journal":{"name":"Indian Journal of Geo-Marine Sciences","volume":"130 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89032055","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}
引用次数: 0
Variation of biogenic sulphur compounds in the estuarine and coastal waters of Goa, West coast of India 印度西海岸果阿邦河口和沿海水域生物源硫化合物的变化
IF 0.5 4区 地球科学 Q4 Earth and Planetary Sciences Pub Date : 2022-01-01 DOI: 10.56042/ijms.v51i06.56976
S. Borker, D. Shenoy, K. Bepari, S. Kurian, H. Uskaikar
Dimethylsulphide (DMS) originates predominantly from dimethylsulphoniopropionate (DMSP), a metabolite produced by phytoplankton. Through its contribution to the production of new aerosols and cloud condensation nuclei, a high concentration of DMS has the potential to influence the radiation budget of the earth. Estuaries and coastal regions being dynamic may produce significantly high concentrations of DMS and DMSP. The present study aimed to investigate the spatial variation of DMS, its precursor total dimethylsulphoniopropionate (DMSP t ), and its sink total dimethylsulphoxide (DMSO t ) at 7 estuarine locations in 4 rivers and a coastal station in Goa during the North East Monsoon (NEM). Generally, higher concentrations of DMS and DMSP t were observed at the near mouth stations and the coastal station compared to upstream stations. Though a positive correlation was observed between salinity and DMSP t, it was not significant, indicating the involvement of other factors influencing DMSP and DMS concentrations. Diatoms were the most abundant group accounting for > 90 % of the phytoplankton. However, higher fractions of dinoflagellates, nano- and picoplankton probably contributed to the DMSP t , DMS and DMSO t production at the coastal and near mouth stations. As the wind speeds were low, DMS flux was governed by surface DMS concentrations and varied between 0.07 and 2.11 µmoles S m -2 D -1 with an average of 0.92±0.80 µmoles S m -2 D -1 . In comparison to DMSP t and DMS, a relatively higher concentration of DMSO t was observed in the study area. While the high DMSO t concentration at the estuarine mouths may be attributed to the photo- or biological oxidation of DMS, those in the upper reaches point to an unknown source and warrants further investigation.
二甲基硫化物(DMS)主要来源于二甲基磺酰丙酸(DMSP),一种浮游植物产生的代谢物。高浓度的DMS通过促进新的气溶胶和云凝结核的产生,有可能影响地球的辐射收支。河口和沿海地区是动态的,可能产生高浓度的DMS和DMSP。本研究旨在研究东北季风(NEM)期间,果阿邦4条河流的7个河口和1个沿海站点的DMS及其前体总二甲基磺酰丙酸酯(DMSP t)及其汇总二甲基亚砜(DMSO t)的空间变化。一般而言,近口站和沿海站的DMS和DMSP浓度高于上游站。盐度与DMSP t呈显著正相关,但不显著,说明影响DMSP和DMS浓度的其他因素也参与其中。硅藻是最丰富的类群,占浮游植物的90%以上。然而,较高比例的鞭毛藻、纳米浮游生物和微浮游生物可能对沿海和近口站的DMSP、DMS和DMSO产生有贡献。由于风速较低,DMS通量受地表DMS浓度控制,在0.07 ~ 2.11µmol S m -2 D -1之间变化,平均为0.92±0.80µmol S m -2 D -1。与DMSP t和DMS相比,研究区DMSO t的浓度相对较高。虽然河口的高DMSO - t浓度可能归因于DMS的光氧化或生物氧化,但上游的DMSO - t浓度指向未知来源,值得进一步调查。
{"title":"Variation of biogenic sulphur compounds in the estuarine and coastal waters of Goa, West coast of India","authors":"S. Borker, D. Shenoy, K. Bepari, S. Kurian, H. Uskaikar","doi":"10.56042/ijms.v51i06.56976","DOIUrl":"https://doi.org/10.56042/ijms.v51i06.56976","url":null,"abstract":"Dimethylsulphide (DMS) originates predominantly from dimethylsulphoniopropionate (DMSP), a metabolite produced by phytoplankton. Through its contribution to the production of new aerosols and cloud condensation nuclei, a high concentration of DMS has the potential to influence the radiation budget of the earth. Estuaries and coastal regions being dynamic may produce significantly high concentrations of DMS and DMSP. The present study aimed to investigate the spatial variation of DMS, its precursor total dimethylsulphoniopropionate (DMSP t ), and its sink total dimethylsulphoxide (DMSO t ) at 7 estuarine locations in 4 rivers and a coastal station in Goa during the North East Monsoon (NEM). Generally, higher concentrations of DMS and DMSP t were observed at the near mouth stations and the coastal station compared to upstream stations. Though a positive correlation was observed between salinity and DMSP t, it was not significant, indicating the involvement of other factors influencing DMSP and DMS concentrations. Diatoms were the most abundant group accounting for > 90 % of the phytoplankton. However, higher fractions of dinoflagellates, nano- and picoplankton probably contributed to the DMSP t , DMS and DMSO t production at the coastal and near mouth stations. As the wind speeds were low, DMS flux was governed by surface DMS concentrations and varied between 0.07 and 2.11 µmoles S m -2 D -1 with an average of 0.92±0.80 µmoles S m -2 D -1 . In comparison to DMSP t and DMS, a relatively higher concentration of DMSO t was observed in the study area. While the high DMSO t concentration at the estuarine mouths may be attributed to the photo- or biological oxidation of DMS, those in the upper reaches point to an unknown source and warrants further investigation.","PeriodicalId":51062,"journal":{"name":"Indian Journal of Geo-Marine Sciences","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82818532","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}
引用次数: 0
A review on the length-weight relationships of finfishes from the coastal lagoons of India 印度沿海泻湖鳍鱼长重关系研究进展
IF 0.5 4区 地球科学 Q4 Earth and Planetary Sciences Pub Date : 2022-01-01 DOI: 10.56042/ijms.v51i12.4263
{"title":"A review on the length-weight relationships of finfishes from the coastal lagoons of India","authors":"","doi":"10.56042/ijms.v51i12.4263","DOIUrl":"https://doi.org/10.56042/ijms.v51i12.4263","url":null,"abstract":"","PeriodicalId":51062,"journal":{"name":"Indian Journal of Geo-Marine Sciences","volume":"129 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77552392","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}
引用次数: 0
Tidal bore induced upward shift of marine fish species in Hooghly estuary, India 潮涌引起印度胡格利河口海洋鱼类上移
IF 0.5 4区 地球科学 Q4 Earth and Planetary Sciences Pub Date : 2022-01-01 DOI: 10.56042/ijms.v51i12.4262
{"title":"Tidal bore induced upward shift of marine fish species in Hooghly estuary, India","authors":"","doi":"10.56042/ijms.v51i12.4262","DOIUrl":"https://doi.org/10.56042/ijms.v51i12.4262","url":null,"abstract":"","PeriodicalId":51062,"journal":{"name":"Indian Journal of Geo-Marine Sciences","volume":"119 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77319652","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}
引用次数: 0
期刊
Indian Journal of Geo-Marine Sciences
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1