Indian Journal of Geo-Marine Sciences最新文献_第4页

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

Indian Journal of Geo-Marine Sciences Pub Date : 2022-01-01 DOI: 10.56042/ijms.v51i11.3504

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

Indian Journal of Geo-Marine Sciences Pub Date : 2022-01-01 DOI: 10.56042/ijms.v51i03.43076

U. Dokuzparmak, A. Feyzioğlu

{"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

Indian Journal of Geo-Marine Sciences Pub Date : 2022-01-01 DOI: 10.56042/ijms.v51i10.2932

R. Vijayaraj, K. Altaff, N. Sri, Kumaran Swarnakala

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

Indian Journal of Geo-Marine Sciences Pub Date : 2022-01-01 DOI: 10.56042/ijms.v51i04.34695

S. K. Roul, S. Ghoshb, P. Rohitc

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

Indian Journal of Geo-Marine 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

{"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

Indian Journal of Geo-Marine Sciences Pub Date : 2022-01-01 DOI: 10.56042/ijms.v51i01.65900

P. Sivaperumala, M. Khota, S. Chakrabortya, A. Pawaseb, A. Jaiswar

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

Indian Journal of Geo-Marine Sciences Pub Date : 2022-01-01 DOI: 10.56042/ijms.v51i07.51976

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

Indian Journal of Geo-Marine Sciences Pub Date : 2022-01-01 DOI: 10.56042/ijms.v51i06.56976

S. Borker, D. Shenoy, K. Bepari, S. Kurian, H. Uskaikar

{"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

Indian Journal of Geo-Marine Sciences Pub Date : 2022-01-01 DOI: 10.56042/ijms.v51i12.4263

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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

Indian Journal of Geo-Marine Sciences Pub Date : 2022-01-01 DOI: 10.56042/ijms.v51i12.4262

引用次数: 0