Oceanologia最新文献_第8页

Numerical simulation of tidal hydrodynamics in the Arabian Gulf 阿拉伯湾潮汐水动力的数值模拟

IF 2.9 3区地球科学

Oceanologia Pub Date : 2022-04-01 DOI: 10.1016/j.oceano.2022.01.002

Fawaz Madah , Sameer H. Gharbi

{"title":"Numerical simulation of tidal hydrodynamics in the Arabian Gulf","authors":"Fawaz Madah , Sameer H. Gharbi","doi":"10.1016/j.oceano.2022.01.002","DOIUrl":"10.1016/j.oceano.2022.01.002","url":null,"abstract":"<div><p>A vertically 2-D numerical model based on the <em>Delft3D</em> modelling system is set up, calibrated, and validated to simulate the tidal hydrodynamics in the Arabian Gulf. The model is a barotropic solution, controlled by 13 tidal components at open boundaries. The performance of the numerical model was evaluated using the hourly water level observations and the TOPEX/Poseidon altimetry data. Statistical analysis showed a good agreement between the simulated and observed water levels. <em>RMS</em> error was found to be ranged from 0.07 to 0.23 m, with maximum discrepancies observed at Ras Tanura and Mina Sulman stations. However, the <em>IOA</em> between the simulated and observed water levels was significant (0.95–0.99). On average, the errors for the tidal constituents considered in the analysis are in the order of <0.02 m (4%). The M<sub>2</sub>, S<sub>2</sub>, K<sub>1</sub> and O<sub>1</sub> tidal waves represent the largest among other constituents, where the amplitude of S<sub>2</sub> represents almost 30% of the M<sub>2,</sub> and the O<sub>1</sub> tidal wave represents about 50% of the K<sub>1</sub> tide. The co-tidal charts of the semidiurnal tides show the existence of two anticlockwise amphidromic systems in the north and south ends (centred around 28.25° and 24.5°N respectively) close to the western side, while the diurnal constituents form only a single amphidromic point in the central part, centred around 26.8°N (North Bahrain). On the other hand, the velocity amplitudes of the <em>U</em> and <em>V</em> components of the numerical model were compared with a previous observational study and found to be agreed well.</p></div>","PeriodicalId":54694,"journal":{"name":"Oceanologia","volume":"64 2","pages":"Pages 327-345"},"PeriodicalIF":2.9,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0078323422000136/pdfft?md5=29599b76076873e1d679b841c51aa088&pid=1-s2.0-S0078323422000136-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49466396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Does topography of rocky intertidal habitat affect aggregation of cerithiid gastropods and co-occurring macroinvertebrates? 岩质潮间带栖息地的地形是否会影响脊状纲腹足动物和共生大型无脊椎动物的聚集?

IF 2.9 3区地球科学

Oceanologia Pub Date : 2022-04-01 DOI: 10.1016/j.oceano.2022.01.006

Soniya Jethva , Kiran Liversage , Rahul Kundu

{"title":"Does topography of rocky intertidal habitat affect aggregation of cerithiid gastropods and co-occurring macroinvertebrates?","authors":"Soniya Jethva , Kiran Liversage , Rahul Kundu","doi":"10.1016/j.oceano.2022.01.006","DOIUrl":"10.1016/j.oceano.2022.01.006","url":null,"abstract":"<div><p>Species aggregation has important implications for population survivorship and ecological functioning in many habitats, including rocky intertidal shores, which have been valuable to research for understanding ecological patterns and process. Intertidal gastropods of the family Cerithiidae often form extensive aggregations for which the driving mechanism may be positive thigmotaxis, i.e. movement occurring until an obstructing surface is contacted, then cessation of movement. However, it is unknown if thigmotaxis may occur by cerithiids contacting and aggregating around uneven surfaces of the rock topography, or by contacting other conspecific individuals. We quantified aggregation patterns in invertebrate assemblages and topographic complexity at intertidal rock platforms in NW India with extensive cerithiid populations. The cerithiids <em>Clypeomorus moniliferus</em> and <em>Cerithium caeruleum</em> were the most common species. Distribution analysis confirmed significant over-dispersion indicative of aggregation (densities were often around zero but occasionally reached up to 680 dm<sup>−2</sup>). Multivariate correlation analyses showed that topographic complexity contributes to overall species assemblage variability, but there was no evidence that topographic complexity correlates with cerithiid abundances or was likely to affect their aggregation. Thus the thigmotaxis producing cerithiid aggregation is probably associated with individuals contacting each other rather than any feature of the rock surface such as crevices or raised areas. Overall, while some components of species assemblages were associated with complex topography, regarding the abundant cerithiids, potential population benefits from aggregation (e.g. reduced desiccation and temperature) may be expected on rocky shores with any level of topographic complexity.</p></div>","PeriodicalId":54694,"journal":{"name":"Oceanologia","volume":"64 2","pages":"Pages 387-395"},"PeriodicalIF":2.9,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0078323422000161/pdfft?md5=a458eb4f69f577f2b6f55f0c7ebf888c&pid=1-s2.0-S0078323422000161-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44156421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Algal bloom, hypoxia, and mass fish kill events in the backwaters of Puducherry, Southeast coast of India 赤潮、缺氧和大量鱼类死亡事件发生在印度东南海岸普杜切里的死水地带

IF 2.9 3区地球科学

Oceanologia Pub Date : 2022-04-01 DOI: 10.1016/j.oceano.2021.11.003

Pravakar Mishra , Subrat Naik , P. Vipin Babu , Umakanta Pradhan , Mehmuna Begum , Thanamegam Kaviarasan , Athan Vashi , Debasmita Bandyopadhyay , P. Ezhilarasan , Uma Sankar Panda , M.V. Ramana Murthy

{"title":"Algal bloom, hypoxia, and mass fish kill events in the backwaters of Puducherry, Southeast coast of India","authors":"Pravakar Mishra , Subrat Naik , P. Vipin Babu , Umakanta Pradhan , Mehmuna Begum , Thanamegam Kaviarasan , Athan Vashi , Debasmita Bandyopadhyay , P. Ezhilarasan , Uma Sankar Panda , M.V. Ramana Murthy","doi":"10.1016/j.oceano.2021.11.003","DOIUrl":"10.1016/j.oceano.2021.11.003","url":null,"abstract":"<div><p>The Chunnambar backwater of Puducherry experienced changes in water quality over a period. The most significant impact was the sudden mass fish kill event coincided with the <em>Pseudo-nitzschia</em> bloom. On 25<sup>th</sup> September 2019, a mass fish kill event was reported, i.e. about a 0.25 metric ton (MT) floating on the water surface. On 29<sup>th</sup> September 2019, a much larger (∼1 MT) than the earlier incident had occurred. Sampling was carried out to assess the causes thereof. The results indicate that high organic matter and bacterial loads accumulated in the water and sediment due to the closure of the river mouth for an extended period. High ammonia (61.4 µM) and phosphate (6.2 µM) levels attributed to eutrophic conditions in the water column and hypoxemia due to low dissolved oxygen (1.62 mg/L at St.1 and 2.4 mg/L at St.5) and algal bloom were the proximate cause of these sudden fish kills. We recommend periodic dredging to facilitate proper water exchange between the backwater and the sea.</p></div>","PeriodicalId":54694,"journal":{"name":"Oceanologia","volume":"64 2","pages":"Pages 396-403"},"PeriodicalIF":2.9,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0078323421000968/pdfft?md5=b6d3a8587b0e428b5aa251e04206bb81&pid=1-s2.0-S0078323421000968-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41336763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 12

Coastal upwelling by wind-driven forcing in the Caspian Sea: A numerical analysis 里海沿岸由风驱动的上升流:数值分析

IF 2.9 3区地球科学

Oceanologia Pub Date : 2022-04-01 DOI: 10.1016/j.oceano.2022.01.003

Fatemeh Fallah, Dariush Mansoury

{"title":"Coastal upwelling by wind-driven forcing in the Caspian Sea: A numerical analysis","authors":"Fatemeh Fallah, Dariush Mansoury","doi":"10.1016/j.oceano.2022.01.003","DOIUrl":"10.1016/j.oceano.2022.01.003","url":null,"abstract":"<div><p>In this study, wind-driven coastal upwelling in the Caspian Sea was investigated using a developed three-dimensional hydrodynamic numerical model based on the Princeton Ocean Model (POM). The model was forced with wind fields and atmospheric fluxes from the ECMWF database and it considers freshwater inflows from the Volga, Kura and Ural Rivers. This model was implemented for 10 years (2008–2018). Findings indicated that the upwelling in the Caspian Sea was due to effects of wind and bottom topography, often occurring from May to September. In June and July, in the eastern part of the middle and sometimes southern basins, up to 3°C water temperature difference occurs between coastal and offshore areas. The vertical temperature gradient in the middle basin was larger than that in the southern basin. Upwelling in August in the eastern coasts of the middle basin within 25 km of coast from the depth of 15 m to the surface was shown, which was due to the effects of wind and bottom topography. In the middle basin, the highest vertical velocities caused by upwelling in June, July and August were 12, 13.82, and 10.36 m/day, respectively.</p></div>","PeriodicalId":54694,"journal":{"name":"Oceanologia","volume":"64 2","pages":"Pages 363-375"},"PeriodicalIF":2.9,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0078323422000148/pdfft?md5=3f3ca2cc0892a19a15472229129207ac&pid=1-s2.0-S0078323422000148-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42760307","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Seasonal carbonate system vis-à-vis pH and Salinity in selected tropical estuaries: Implications on polychaete diversity and composition towards predicting ecological health 季节性碳酸盐系统vs -à-vis热带河口pH和盐度:多毛类多样性和组成对预测生态健康的影响

IF 2.9 3区地球科学

Oceanologia Pub Date : 2022-04-01 DOI: 10.1016/j.oceano.2022.01.001

Palanivel Partha Sarathy , Veeraiyan Bharathidasan , Perumal Murugesan , Palanichamy Selvaraj , Rengasamy Punniyamoorthy

{"title":"Seasonal carbonate system vis-à-vis pH and Salinity in selected tropical estuaries: Implications on polychaete diversity and composition towards predicting ecological health","authors":"Palanivel Partha Sarathy , Veeraiyan Bharathidasan , Perumal Murugesan , Palanichamy Selvaraj , Rengasamy Punniyamoorthy","doi":"10.1016/j.oceano.2022.01.001","DOIUrl":"10.1016/j.oceano.2022.01.001","url":null,"abstract":"<div><p>Salinity and pH play a fundamental role in structuring spatial patterns of physical properties, biota, and biogeochemical processes in the estuarine ecosystem. In this study, the influence of salinity-pH gradient and carbonate system on polychaete diversity in Ennore, Uppanar, Vellar, and Kaduvaiyar estuaries was investigated. Water and sediment samples were collected from September 2017 to August 2018. Univariate and multivariate statistical analyses were employed to define ecological status. Temperature, salinity, pH, and partial pressure of carbon-di-oxide varied between 21 and 30°C; 29 and 39 ppt; 7.4 and 8.3; and 89.216 and 1702.558 µatm, respectively. PCA and CCA results revealed that DO, chlorophyll, carbonate species, and sediment TOC have a higher influence on polychaete community structure. Forty-two species such as <em>Ancistrosyllis parva, Cossura coasta, Eunice pennata, Euclymene annandalei, Lumbrineris albidentata, Capitella capitata, Prionospio cirrifera, P. pinnata, P. cirrobranchiata</em>, and <em>Notomastus</em> sp. were found dominantly in all estuaries. Shannon index values ranged between 1.619 (UE-1) and 3.376 (VE-2). Based on these findings, high levels of carbonate species and low pH have a greater impact on polychaete diversity and richness values. The results of the AMBI Index revealed that stations UE-1, UE-2, UE-3 in Uppanar, EC-1, EC-2 in Ennore indicate “moderately disturbed”, while other stations are under the “slightly disturbed” category. This trend was quite evident in M-AMBI as well.</p></div>","PeriodicalId":54694,"journal":{"name":"Oceanologia","volume":"64 2","pages":"Pages 346-362"},"PeriodicalIF":2.9,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0078323422000124/pdfft?md5=4ff0e01813353040aa06cb45603dd7a2&pid=1-s2.0-S0078323422000124-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43787020","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Diurnal variation of cloud cover over the Baltic Sea 波罗的海云量的日变化

IF 2.9 3区地球科学

Oceanologia Pub Date : 2022-04-01 DOI: 10.1016/j.oceano.2021.12.005

Marcin Paszkuta , Tomasz Zapadka , Adam Krężel

{"title":"Diurnal variation of cloud cover over the Baltic Sea","authors":"Marcin Paszkuta , Tomasz Zapadka , Adam Krężel","doi":"10.1016/j.oceano.2021.12.005","DOIUrl":"10.1016/j.oceano.2021.12.005","url":null,"abstract":"<div><p>Instantaneous cloud cover over the Baltic Sea, estimated from satellite information, may differ by as much as several dozen percent between the day and night. This difference may result from both weather conditions and different algorithms used for the day and night. The diurnal differences in cloudiness measured by proprietary and operational systems were analysed as part of research on marine environmental assessment and monitoring. An optimised algorithm for 2017 was presented and supplemented with information from radiation modelling. The study showed that, in general, the average values of daily changes in cloud cover over the sea depend on the season, which generally corresponds to the length of the day and contrasts with the amount of cloudiness. The results were compared with available online data that met the night and day detection criteria, the climate model, and the climate index. The averaged analysis of seasonal changes showed that similar values of the satellite estimates are higher than those obtained from the climate model and the lidar estimation. The satellite estimates from SatBaltic showed the lowest uncertainty. The diurnal cycle was confirmed by all analysed systems. These results may indicate common physical mechanisms and a methodological reason for the uncertainty of satellite-based data. The results clearly showed the existing diurnal difference in the amount of cloud cover over the Baltic Sea and indicated that this difference is not always explained by the physical properties of the atmosphere. The probable causes for these uncertainties were identified and diagnosed.</p></div>","PeriodicalId":54694,"journal":{"name":"Oceanologia","volume":"64 2","pages":"Pages 299-311"},"PeriodicalIF":2.9,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0078323421001044/pdfft?md5=1c80646020d6fd80c60e9733641f2c73&pid=1-s2.0-S0078323421001044-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43247235","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Multivariate approach to evaluate the factors controlling the phytoplankton abundance and diversity along the coastal waters of Diu, northeastern Arabian Sea 阿拉伯海东北部Diu沿岸浮游植物丰度和多样性控制因素的多元评价方法

IF 2.9 3区地球科学

Oceanologia Pub Date : 2022-04-01 DOI: 10.1016/j.oceano.2021.11.005

P. Sathish Kumar , S. Venkatnarayanan , Vikas Pandey , Krupa Ratnam , Dilip Kumar Jha , S. Rajaguru , G. Dharani , R. Arthur James , M.A. Atmanand

{"title":"Multivariate approach to evaluate the factors controlling the phytoplankton abundance and diversity along the coastal waters of Diu, northeastern Arabian Sea","authors":"P. Sathish Kumar , S. Venkatnarayanan , Vikas Pandey , Krupa Ratnam , Dilip Kumar Jha , S. Rajaguru , G. Dharani , R. Arthur James , M.A. Atmanand","doi":"10.1016/j.oceano.2021.11.005","DOIUrl":"10.1016/j.oceano.2021.11.005","url":null,"abstract":"<div><p>The present study investigated the phytoplankton assemblage and diversity with physicochemical parameters of Diu coastal waters in different seasons during 2018–19. During the study period, 61 phytoplankton species comprising diatoms (50 sp.), dinoflagellates (8 sp.), and cyanophyceae (3 sp.) were recorded. Diatom was found to be a major community and contributed 79 to 99% of total phytoplankton abundance. Reduction in dinoflagellate and dominance of pennate-diatoms were observed during the monsoon. Chlorophyll-<em>a</em> concentration also showed a similar trend and decreased during the monsoon. However, the phytoplankton abundance was low particularly during the monsoon which might be due to the elevated total suspended solids (TSS) load. Canonical correspondence analysis revealed that diatoms were able to survive in high TSS with the support of high nutrients; while dinoflagellates were limited due to those conditions. Overall, the reduction in phytoplankton abundance, diversity, and biomass was recorded due to the elevated TSS input along the coastal waters of Diu.</p></div>","PeriodicalId":54694,"journal":{"name":"Oceanologia","volume":"64 2","pages":"Pages 267-275"},"PeriodicalIF":2.9,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0078323421000981/pdfft?md5=a9a5f8afb1a41988efea04fadf64c521&pid=1-s2.0-S0078323421000981-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47196844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

The process of modelling the elevation surface of a coastal area using the fusion of spatial data from different sensors 利用不同传感器空间数据的融合对沿海地区高程面进行建模的过程

IF 2.9 3区地球科学

Oceanologia Pub Date : 2022-01-01 DOI: 10.1016/j.oceano.2021.08.002

Marta Włodarczyk-Sielicka, Izabela Bodus-Olkowska, Małgorzata Łącka

{"title":"The process of modelling the elevation surface of a coastal area using the fusion of spatial data from different sensors","authors":"Marta Włodarczyk-Sielicka, Izabela Bodus-Olkowska, Małgorzata Łącka","doi":"10.1016/j.oceano.2021.08.002","DOIUrl":"10.1016/j.oceano.2021.08.002","url":null,"abstract":"<div><p>Information regarding the depth distribution in a specific aquatic area is not also crucial for the safety of navigation, but also for modelling environmental processes, such as the quick establishment of marine-land boundaries or assessments of flood risk areas. Using elevation data from different available sources can be very convenient for individuals who wish to conduct quick analysis or need to obtain data covering a large area without the need for data collection and surveys. This study proposes a method of combining spatial data from different sources during surface modelling of a coastal area. The spatial data used for elevation surface modelling included hydrographic and topographic data, which are often collected separately for various purposes. Data are saved in different formats with various resolutions and accuracies; thus, a uniform surface model that will allow for easy and accurate analysis is currently lacking. The main aim of this study was to create a model of the surface of a coastal area using input data from various sources with the highest possible accuracy. This paper presents the available spatial data sources for coastal areas, along with the data pre-processing process. Furthermore, spatial data fusion is introduced, along with the results. The entire process of creating the uniform surface model consisted of several steps that are described in detail and visualised. The obtained model was visualised using a three-dimensional map.</p></div>","PeriodicalId":54694,"journal":{"name":"Oceanologia","volume":"64 1","pages":"Pages 22-34"},"PeriodicalIF":2.9,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.oceano.2021.08.002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41483183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

A substantial range expansion of alien Ponto-Caspian amphipods along the eastern Baltic Sea coast 沿着波罗的海东部海岸，外来的蓬托-里海片脚类动物的活动范围大幅扩大

IF 2.9 3区地球科学

Oceanologia Pub Date : 2022-01-01 DOI: 10.1016/j.oceano.2021.09.005

Denis Copilaş-Ciocianu, Eglė Šidagytė-Copilas

{"title":"A substantial range expansion of alien Ponto-Caspian amphipods along the eastern Baltic Sea coast","authors":"Denis Copilaş-Ciocianu, Eglė Šidagytė-Copilas","doi":"10.1016/j.oceano.2021.09.005","DOIUrl":"10.1016/j.oceano.2021.09.005","url":null,"abstract":"<div><p>We report a considerable range expansion of four Ponto-Caspian amphipod species in transitional waters along the southeastern Baltic Sea coast. <em>Chaetogammarus warpachowskyi</em> and <em>Dikerogammarus haemobaphes</em> were found for the first time in Latvia, the former being common along the coast, while the latter was encountered only in the port of Riga. This indicates a 400 to 600 km expansion along the coast, assuming an origin from the Curonian or Vistula lagoons. We also officially document an expansion for <em>Chelicorophium curvispinum</em> in Latvia of ca. 300 km until Riga, confirming recent unpublished records. Moreover, we document a second invasion route of <em>Pontogammarus robustoides</em> into Estonia from nearby Latvian waters by uncovering a population at the port of Pärnu. This species was previously known in Estonia only from the Gulf of Finland (>500 km from Pärnu). With the exception of <em>D. haemobaphes</em>, all newly recorded species were represented by various life-stages and ovigerous females, indicating viable populations. Overall, our findings reveal that Ponto-Caspian amphipods are much more widespread in the Baltic area than previously known and highlight the need for more stringent monitoring.</p></div>","PeriodicalId":54694,"journal":{"name":"Oceanologia","volume":"64 1","pages":"Pages 227-232"},"PeriodicalIF":2.9,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0078323421000853/pdfft?md5=5440bbabaaa9cb74171e3e03f4f68ac6&pid=1-s2.0-S0078323421000853-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47958766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 10

A comparative study of biosynthesized marine natural-product nanoparticles as antifouling biocides 生物合成海洋天然产物纳米颗粒防污杀菌剂的比较研究

IF 2.9 3区地球科学

Oceanologia Pub Date : 2022-01-01 DOI: 10.1016/j.oceano.2021.08.004

Khaled Mahmoud Abdelsalam , Nayrah Aly Shaltout , Hassan Abduallah Ibrahim , Hermine Ramzy Zaki Tadros , Mohamed Abd-Elnaby Aly-Eldeen , Ehab Aly Beltagy

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引用次数: 6