The international journal of marine science最新文献

{"title":"Ekman Pumping and Mixed Layer Depth Variability over the Indo-Pacific Oceans during the El Nino and IOD Events","authors":"Veeranjaneyulu Ch., A. A. Deo, G. Bharathi, D. Ganer, K. Prasad","doi":"10.5376/IJMS.2016.06.0056","DOIUrl":"https://doi.org/10.5376/IJMS.2016.06.0056","url":null,"abstract":"The following study addresses the variability of Mixed Layer Depth (MLD) and Ekman pumping (W EK ) during the extreme El Nino and Indian Ocean Dipole (IOD) over the Indo-Pacific regions. Monthly anomalies considering the climatology of the period of 1980 through 2011 show that during the El Nino years, Ekman suction (positive Ekman pumping) is replaced with Ekman pumping (negative Ekman pumping) in the tropical eastern Pacific Ocean (88˚W-90˚W and 13˚S-15˚S) resulting in positive MLD anomalies, and the strong Ekman pumping may be the source for the deepened thermocline during El Nino. In the La Nina events shallow MLD exits in the tropical eastern Pacific Ocean, due to positive Ekman pumping. During the positive IOD (PIOD) events in the south eastern Indian Ocean (97˚E-100˚E and 2˚S-5˚S) MLD becomes shallow and positive Ekman pumping anomalies occur. During the negative IOD (NIOD) years opposite signs take place. Composite events of El Nino are compared with those of IOD, showing more Ekman pumping anomalies during IOD events as against less deviation in SST.","PeriodicalId":22529,"journal":{"name":"The international journal of marine science","volume":"46 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74417888","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Influence of the Seaside Characteristics on the Tourist Ports and Their Impact on the Romanian Coast of the Black Sea","authors":"T. Simon, Mărioara Musteaţă-Pavel","doi":"10.5376/ijms.2016.06.0055","DOIUrl":"https://doi.org/10.5376/ijms.2016.06.0055","url":null,"abstract":"The Black Sea is an intra-continental sea situated between Europe (towards the west and north) and Asia (towards the east and the south). Its surface covers more than 450,000 km², occupying an important position among the intra-continental seas, which means that it’s almost two times larger than Romania. \u0000 In our country the Black Sea boasts about 245 km of coast, of which 70 km include sand beaches, capitalised for tourism. While the seacoast belonging to the Danube Delta is protected as a Biosphere Reserve, the southern part of the seashore has been turned into a chain of resorts with 25 localities and 13 main resorts, all comprised in the Constanta county, visited annually by over a million tourists. \u0000 In order to enhance the attractiveness of the Romanian seashore after 1990, a new tendency appeared - to develop the nautical sports field. In this context, the authorities analysed the option of building tourist ports that had not existed during the period of the socialist economy.","PeriodicalId":22529,"journal":{"name":"The international journal of marine science","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85558428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Benthic Faunal Assemblage of the Arctic Kongsfjorden System, Norway","authors":"S. Nandan, K. P.P, Akhilesh Vijay, C. V. Asha, Jayachandran P.R, K. P. Krishnan","doi":"10.5376/IJMS.2016.06.0054","DOIUrl":"https://doi.org/10.5376/IJMS.2016.06.0054","url":null,"abstract":"Kongsfjord is an open glacial fjord on the west coast of Svalbard, located northwards to Norway. Benthic samples were collected from seven selected locations as a part of summer Phase III group 2 – Indian Arctic Expedition 2011. The characteristic macro benthic fauna observed in the soft bottom glacial community include Foraminifera, Nematoda, Polychaeta, Bivalvia, Amphipoda, Calanoid copepoda and Ostracoda, out of which polychaetes (59%) and nematodes (21%) were abundant. The meio benthic group was constituted by Nematoda, Foraminifera, Bivalvia, Polychaeta, Harpacticoid copepoda, Gastrotricha, and Kinoryncha, of which nematodes (54%) followed by foraminferans (37%) were the dominant group. A significant difference in the distribution of meio benthos between the inner and outer fjords was observed. Multivariate analysis of macro and meio fauna showed an overall similarity of ~ 80% among stations. The inner and outer fjords were similar in terms of granulomertic composition and were also silt dominated in the entire Kongsfjorden system. Total carbon (TC) and total organic carbon (TOC) were higher in the outer fjord, but the total inorganic carbon (TIC) was slightly higher in the inner fjord. The diversity and abundance of benthic organisms was strongly influenced by sediment characteristics, glacial inputs and Atlantic water mass movements making the ecosystem unpredictable.","PeriodicalId":22529,"journal":{"name":"The international journal of marine science","volume":"410 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74974038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Day's Goby, Acentrogobius dayi Koumans, 1941 (Pisces: Gobiidae) in the Southern Marshes, Thiqar, Southwest Baghdad, Iraq","authors":"L. Jawad, N. A. Nasir, A. Al-Faisal, Q. M. Sultan, Mahmood S. Mahlhal","doi":"10.5376/IJMS.2016.06.0052","DOIUrl":"https://doi.org/10.5376/IJMS.2016.06.0052","url":null,"abstract":"The Day’s goby, Acentrogobius dayi (one specimen) was obtained from a marsh near Al-Fuhud Village, south-west of Baghdad, Iraq. The presence of this species in the new habitat is considered a new record for Day’s goby in the southern marshes of Iraq. Possibilities for such presence were presented.","PeriodicalId":22529,"journal":{"name":"The international journal of marine science","volume":"47 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76878512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study of Chromista and Protozoa in a Hotspot Area at the Mediterranean Coast with Special Reference to the Potentiality to Use It as Bio-indicators","authors":"Hamdy A. Abo-Taleb, N. A. Aziz, S. Ezz, M. Raey, M. Zaid","doi":"10.5376/IJMS.2016.06.0053","DOIUrl":"https://doi.org/10.5376/IJMS.2016.06.0053","url":null,"abstract":"Chromista and Protozoa ranked the 2 nd dominant group in the study area represent together 16.1 % of the total zooplankton with annual average of 1440 organisms/m 3 and expressed by 69 species. Distinct differences that appeared in the dynamics, patterns of occurrence and numbers of the species in these locations were attributed to differences in physical and chemical conditions.Several environmental conditions appear to control the regional and seasonal distribution of such organisms. Ballast water plays an important role in species mechanical transmission through shipping movements. In conclusion, the community composition of the two phyla and their significant dominance indicated that, El-Mex Bay is a highly eutrophic system which shows signs of partial pollution. Accordingly, it is recommended that the waste water should be treated and/ or recycled before discharge into this natural aquatic system. It was important to produce monograph inside this work containing the photos of the organisms.","PeriodicalId":22529,"journal":{"name":"The international journal of marine science","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81235937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Vertical Turbulent at Thermocline Layer in Makassar Strait","authors":"Dahlia Prihatini, M. Purba, Y. Naulita, A. Purwandana","doi":"10.5376/IJMS.2016.06.0051","DOIUrl":"https://doi.org/10.5376/IJMS.2016.06.0051","url":null,"abstract":"Makassar Strait is one of the main passage of Indonesian Throughflow (ITF). The purpose of this research is to study the spatial distribution of vertical turbulent at thermocline layer (at a depth about 100-350 m) of the Makassar Strait and to analyze the forcing that trigger it. Hydrographic data obtained from Widya Nusantara Expedition (Ewin) in June 2013, which consists of 29 CTD stations spread across Makassar Strait were use for this study. Water-mass test of GK test was applied to the CTD data to eliminate density inversion caused by noise. The result of this study show that an active turbulent with kinetic energy dissipation rate (e) of 0(10 -9 -10 -8 ) Wkg -1 and diffusivity vertical of K ρ 0(10 -5 -10 -3 ) m 2 s -1 . These results were categorized as relatively strong vertical turbulent and found at a depth of 100-200 m in the northern part of the strait at the entrance of Arlindo. Meanwhile at the southern part of the strait near the exit passage of Arlindo, the vertical turbulent was more intensive on the west side of the strait with e (10 -9 ) Wkg -1 and K ρ (10 -4 ) m 2 s -1 .","PeriodicalId":22529,"journal":{"name":"The international journal of marine science","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87151986","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Identification and Mapping of Ocean Biological Deserts Using Satellite Data","authors":"M. Raman, R. Rajan, Ajai","doi":"10.5376/IJMS.2016.06.0050","DOIUrl":"https://doi.org/10.5376/IJMS.2016.06.0050","url":null,"abstract":"The ability of oceans to sequester large amounts of atmospheric CO 2 through the biological pump has generated considerable interest in formulating strategies towards mitigating the impact of climate change. One such mitigation strategy is the artificial fertilisation of oceanic waters characterised by very low phytoplankton biomass. Regions of ocean that contain low phytoplankton biomass or chlorophyll-concentrations are called as ‘Ocean Biological Deserts’. A primary requirement for conducting fertilisation experiments is the identification of regions that are uniformly low in chlorophyll concentration without any seasonal or interannual variations. This communication reports the identification of uniformly low chlorophyll regions (ocean biological deserts) in the Arabian Sea and Bay of Bengal using satellite derived ocean colour variables that can be considered suitable for artificial enrichment.","PeriodicalId":22529,"journal":{"name":"The international journal of marine science","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83902609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development an Blooms of Peridinea Akashivo sanguinea in the Bulgarian Marine Aquatories","authors":"D. Klisarova, D. Gerdzhikov","doi":"10.5376/IJMS.2016.06.0049","DOIUrl":"https://doi.org/10.5376/IJMS.2016.06.0049","url":null,"abstract":"The article presents results of empirical field research on the development and distribution of the ''unarmoured'' peridinea Akashivo sanguinea in the Bulgarian marine aquatories during the period 1995-2015. The analysis has established that A. sanguinea is a phytoplankton species relatively rarely met in the water in front of the Bulgarian coast. The development and blooms of the species have been identified both in the surface water layer and up to 25 m (layer above the thermocline). It developed mainly in water areas rich in nutrients (Varna Bay, Burgas Bay, Balchik), but also in open sea areas (10-30 miles offshore), probably under the influence of the Danube inflow. Basically the blooms of the species were recorded in the mid-90s and at the beginning of the new century (2001). After this period the concentrations of A. sanguinea were minimal. A constant trend of reducing the size of the cells of the species has been registered. \u0000 The purpose of this study was to describe, track and analyze the patterns in the development and distribution of the phytoplankton species A. sanguinea in the Bulgarian marine aquatories during that 20 year period.","PeriodicalId":22529,"journal":{"name":"The international journal of marine science","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73268953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Polycyclic Aromatic Hydrocarbons (PAHs) in the Soil of West Qurna-2 Oil Field Southern Iraq","authors":"Duha S. Karem, H. Kadhim, H. Al-Saad","doi":"10.5376/IJMS.2016.06.0048","DOIUrl":"https://doi.org/10.5376/IJMS.2016.06.0048","url":null,"abstract":"This study focused on the determinate concentrations of polycyclic aromatic hydrocarbon by using capillary gas chromatographic for soil of ten stations in West Qurna-2 oil field. The first included light (low molecular weight) compounds with two-three fused aromatic rings which consisting of: naphthalene, acenaphthylene, acenaphthene, fluorene, phenanthrene, anthracene, and carbazole. The second included the heavy (high molecular weight) compounds with  four or more fused aromatic rings consisting of: floranthene, pyrene, benzo(a)anthracene, chrysene, benzo(b)flouranthene, benzo(k)flouranthene, benzo(a)pyrene,  indeno(1,2,3,c,d)pyrene, dibenzo(a,h)anthracene, and benzo(g,h,i)perylene. The dominant light PAHs compounds were acenaphthylene, acenaphthene, fluorene, phenanthrene, anthracene and carbazol. Whereas the dominant heavy PAHs compounds were floranthene, pyrene, benzo(a)pyrene , benzo(a)anthracene , benzo(k)flouranthene. The regional higher mean concentrations of PAHs in station 10 was (5.906 ng/g) and the lowest in station 1 (1.125 ng/g). The results of seasonal PAHs concentration in this study showed that the lowest concentrations recorded during summer (1.214 ng/g), while the highest concentrations recorded during winter (4.177ng/g). From the LMW/HMW, phenanthrene/anthracene and benzo(a)anthracene/benzo(a)anthracene+ chrysene ratios, the PAHs compound was drived from pyrogenic sources, while Flouranthene/Pyrene Ratio and InP/(InP+BghiP) Ratio was pyrogenic+ petrogenic origin and petrogenic or pyrogenic and Ant/(Ant+ Phen) Ratio was pyrolytic. Concentrations in studied stations gradually increased from station 1 to station 5, and then significantly decreased at station 6 and finally increased to station 10. The fluctuation in concentrations of compound at stations is due to distance from the flame of the flare which near to the stations 8,9,10 and far to the stations 1,2,3,4,5,6,7, while the seasonal concentration arrange as following: winter >spring >autumn>summer. \u0000 There were non-significant correlation between the PAHs in soil and each of the soil texture compounds (sand, silt and clay), while there is significant correlation between the PAHs in soil and TOC%.","PeriodicalId":22529,"journal":{"name":"The international journal of marine science","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84809174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biology and Growth Parameters of Spotted Seerfish - Scomberomorus guttatus (Bloch & Schneider, 1801) from North East Coast of India","authors":"A. Siva, Ansuman Das, P. Premchand, A. B. Kar, N. Jagannadh, S. K. Pattnayak","doi":"10.5376/IJMS.2016.06.0044","DOIUrl":"https://doi.org/10.5376/IJMS.2016.06.0044","url":null,"abstract":"Seerfish is one of the most commercially important food fish in India. The production figure of seerfish shows an increasing trend in the last five decades in the Indian coasts. Among the five species of seerfishes the species Scomberomorus commerson and S. guttatus commonly occur in Indian waters. The seerfish production in India during 2011 stands at 48954 t and that of spotted seerfish was 17535t (35.8%). The exploratory survey results of Fishery Survey of India (FSI) by deploying demersal and pelagic trawl indicated the dominance of S. guttatus (62.2%) in the seerfish catch during the period 2006-10 in the northeast coast of India. The biological as well as growth and population parameters of a particular species are absolutely needed to manage the fishery to a sustainable level. Hence in this paper an attempt has been made to analyze the exploratory survey data collected onboard FSI vessels to study the biology and growth parameters of spotted seerfish S. guttatus in the northeast coast of India. The study indicated that the size range of the species ranged between 16.1-63.5cm fork lengths with 39.1-42cm length group dominated the population. The male to female ratio was 1:1.6. The length weight relationship was Log W = -1.1283 + 2.4627 Log L (r = 0.91). There were six stages of maturity and the spawning season was between January and June. The growth parameters such as L∞, K and t 0 were 64.6cm, 0.97 and -0.1532 respectively. The natural mortality was 1.43 and fishing mortality was 1.28. The longevity of the species was estimated as 2 years. The virtual population analysis (VPA) indicated that the mortality due to natural causes alone was up to 28cm length suggesting exploitation of smaller specimens. The food and feeding study shows that the species are piscivorous in nature.","PeriodicalId":22529,"journal":{"name":"The international journal of marine science","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84914226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}