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197101
電子期刊
R. M. Lieb-Lappen, and R. W. Obbard
It is well known that during polar springtime halide sea salt ions, in particular Br<sup>-</sup>, are photochemically activated into reactive halogen species (e.g., Br and BrO), where they break down tropospheric ozone. This research investigated the role of blowing snow in transporting salts from the sea ice/snow surface into reactive bromine species in the air. At two different locations over first-year ice in the Ross Sea, Antarctica, collection baskets captured blowing snow at different heig...
關鍵字: sea
出版: Copernicus Publications
ISSN: 1680-7316
來源: DOAJ
System ID: 418219
197102
電子期刊
W. Ning, and W. Ning, and J. Tang, and J. Tang, and J. Tang, and H. L. Filipsson
We analysed the long-term variations in grain-size distribution in sediments from Gåsfjärden, a fjord-like inlet in the southwestern Baltic Sea, and explored potential drivers of the recorded changes in the sediment grain-size data. Over the last 5.4 thousand years (ky) in the study region, the relative sea level decreased 17 m, which was caused by isostatic land uplift. As a consequence, Gåsfjärden was transformed from an open coastal setting to a semi-closed inlet surrounded by numerous ...
關鍵字: coastal
出版: Copernicus Publications
ISSN: 2196-6311
來源: DOAJ
System ID: 418218
197103
電子期刊
Salman Ahmady-Asbchin, and Naser Jafari, and Naser Jafari
One of the effective methods for the separation and recovery of heavy metals from aqueous solutions is the use of biosorbents. This study investigated the use of brown algae Cystoseira indica for removal of nickel ions from aqueous solution. In this study, adsorption isotherms and Kinetic nickel ions by algae in a batch reactor was studied. Brown algae were collected from the Coast of Oman Sea in Chabahar. This study showed that for nickel (II) uptakes, equilibrium time was about 120 minutes and...
關鍵字: alga
出版: University of Isfahan
ISSN: 2008-8264
來源: DOAJ
System ID: 418217
197104
電子期刊
Valeria eManera, and Pierre-David ePetit, and Alexandre eDerreumaux, and Ivan eOrvieto, and Matteo eRomagnoli, and Graham eLyttle, and Renaud eDavid, and Renaud eDavid, and Philippe eRobert, and Philippe eRobert
Recently there has been a growing interest in employing serious games for the assessment and rehabilitation of elderly people with Mild Cognitive Impairment (MCI), Alzheimer’s disease (AD) and related disorders. In the present study we examined the acceptability of ‘Kitchen and cooking’ - a serious game developed in the context of the EU project VERVE (http://www.verveconsortium.eu/) - in these populations. In this game a cooking plot is employed to assess and stimulate executive functions (such...
關鍵字: pilot
出版: Frontiers Media S.A.
ISSN: 1663-4365
來源: DOAJ
System ID: 418216
197105
電子期刊
S. Kim, and W. Nam, and H. Ahn, and T. Kim, and J.-H. Heo
Recently, the evidences of climate change have been observed in hydrologic data such as rainfall and flow data. The time-dependent characteristics of statistics in hydrologic data are widely defined as nonstationarity. Therefore, various nonstationary GEV and generalized Pareto models have been suggested for frequency analysis of nonstationary annual maximum and POT (peak-over-threshold) data, respectively. However, the alternative models are required for nonstatinoary frequency analysis b...
關鍵字: logistic
出版: Copernicus Publications
ISSN: 2199-8981
來源: DOAJ
System ID: 418215
197106
電子期刊
Laura Uusitalo, and Hugues Blanchet, and Hugues Blanchet, and Jesper H. Andersen, and Olivier Beauchard, and Torsten Berg, and Silvia Bianchelli, and Annalucia Cantafaro, and Jacob Carstensen, and Laura Carugati, and Sabine Cochrane, and Sabine Cochrane, and Roberto Danovaro, and Roberto Danovaro, and Anna-Stiina Heiskanen, and Ville Karvinen, and Snejana Moncheva, and Ciarán Murray, and Ciarán Murray, and João M. Neto, and Henrik Nygård, and MARIA PANTAZI, and Nadia Papadopoulou, and Nomiki Simboura, and Greta Srėbalienė, and Maria C Uyarra, and Angel Borja
The Marine Strategy Framework Directive requires the environmental status of European marine waters to be assessed using biodiversity as one out of 11 descriptors, but the complexity of marine biodiversity and its large span across latitudinal and salinity gradients have been a challenge to the scientific community aiming to produce approaches for integrating information from a broad range of indicators. The Nested Environmental status Assessment Tool (NEAT), developed for the integrated assessm...
關鍵字: marine
出版: Frontiers Media S.A.
ISSN: 2296-7745
來源: DOAJ
System ID: 418214
197107
電子期刊
Maria Anna Coniglio, and Enza Sidoti, and Sarina Pignato, and Giuseppe Giammarco, and Marina Marranzano
<p><strong>Background</strong>: despite growing interest in Internet addiction disorder (Iad) among the high school population, very little is known about the potential risks of the use of the Internet for university students. The present survey aimed to collect information on Internet usage patterns in a group of Italian university students.</p><p><strong>Methods</strong>: the sample comprised 600 Italian university students enrolled in various faculties, in two different universities: catania ...
關鍵字: pilot
出版: Prex spa
ISSN: 1723-7807
來源: DOAJ
System ID: 418213
197108
電子期刊
Mohamad Amin Pourhoseingholi, and Yadolah Mehrabi, and Hamid Alavi-Majd, and Parvin Yavari
<p><strong>Background</strong>: Logistic regression is one of the most widely used models to analyze the relation between one or more explanatory variables and a categorical response in the field of epidemiology, health and medicine. When there is strong correlation among explanatory variables, i.e.multicollinearity, the efficiency of model reduces considerably. The objective of this research was to employ latent variables to reduce the effect of multicollinearity in analysis of a case-control s...
關鍵字: logistic
出版: Prex spa
ISSN: 1723-7807
來源: DOAJ
System ID: 418212
197109
電子期刊
Pierluigi Viaroli, and Roberta Azzoni, and Marco Bartoli, and Gianmarco Giordani, and Mariachiara Naldi, and Daniele Nizzoli
Coastal lagoons are threatened by natural and anthropogenic factors that have been accelerated in the last decades, with detrimental effects on ecosystem and water quality, especially in sheltered systems. Eutrophication, macroalgal blooms, hypoxia and anoxia are among the main threats, which also impact on human activities, e.g. aquaculture and fishery. Study were performed from late 1980s to date in several Mediterranean lagoons, mainly in the Po river delta, in order to elucidate the main cau...
關鍵字: coastal
出版: PAGEPress Publications
ISSN: 1947-573X
來源: DOAJ
System ID: 418211
197110
電子期刊
A. Schmittner, and G. D. Egbert
Two modifications to an existing scheme of tidal mixing are implemented in the coarse resolution ocean component of a global climate model. First, the vertical distribution of energy flux out of the barotropic tide is determined using high resolution bathymetry. This shifts the levels of mixing higher up in the water column and leads to a stronger mid-depth meridional overturning circulation in the model. Second, the local dissipation efficiency for diurnal tides is assumed to be larger than tha...
關鍵字: ocean
出版: Copernicus Publications
ISSN: 1991-959X
來源: DOAJ
System ID: 418210
197111
電子期刊
Sunho Park, and Se Wan Park, and Shin Hyung Rhee, and Sang Bong Lee, and Jung-Eun Choi, and Seon Hyung Kang
A computational fluid dynamics (CFD) code, dubbed SNUFOAM, was developed to predict the performance of ship resistance using a CFD tool kit with open source libraries. SNUFOAM is based on a pressure-based cell-centered finite volume method and includes a turbulence model with wall functions. The mesh sensitivity, such as the skewness and aspect ratio, was evaluated for the convergence. Two wall functions were tested to solve the turbulent flow around a ship, and the one without the assumption of...
關鍵字: ship
出版: Elsevier
ISSN: 2092-6782
來源: DOAJ
System ID: 418209
197112
電子期刊
Most Habiba Ferdaushy, and Mohammad Manjurul Alam
The research carried out the length-length relationships (LLR), length-weight relationship (LWR) and condition factor of nine freshwater small indigenous species viz. G. giuris, E. Danricus, M. pancalus, L. guntea, C. fasciatus, P. sophore, H.  Fossilis, C.  punctatus and M. cavasius from the waterbodies of Nageshwari, Bangladesh. Relationships among different body lenght parameters of each species were found highly significant with all “r” values being >0.900. LWRs were obtained on the form of ...
關鍵字: fish
出版: University of Tehran
ISSN: 2322-5270
來源: DOAJ
System ID: 418208
197113
電子期刊
Rajinder eGupta, and Shrikant S Mantri
關鍵字: ocean
出版: Frontiers Media S.A.
ISSN: 1664-8021
來源: DOAJ
System ID: 418207
197114
電子期刊
C. Heinze, and B. A. A. Hoogakker, and A. Winguth
What role did changes in marine carbon cycle processes and calcareous organisms play in glacial–interglacial variation in atmospheric <i>p</i>CO<sub>2</sub>? In order to answer this question, we explore results from an ocean biogeochemical general circulation model. We attempt to systematically reconcile model results with time-dependent sediment core data from the observations. For this purpose, we fit simulated sensitivities of oceanic tracer concentrations to changes in governing carbon cycle...
關鍵字: pilot
出版: Copernicus Publications
ISSN: 1814-9324
來源: DOAJ
System ID: 418206
197115
電子期刊
R. H. Rhodes, and X. Yang, and E. W. Wolff, and J. R. McConnell, and M. M. Frey
Growing evidence suggests that the sea ice surface is an important source of sea salt aerosol and this has significant implications for polar climate and atmospheric chemistry. It also suggests the potential to use ice core sea salt records as proxies for past sea ice extent. To explore this possibility in the Arctic region, we use a chemical transport model to track the emission, transport, and deposition of sea salt from both the open ocean and the sea ice, allowing us to assess the rela...
關鍵字: sea
出版: Copernicus Publications
ISSN: 1680-7316
來源: DOAJ
System ID: 418205
197116
電子期刊
James L. O’Donnell, and Ryan P. Kelly, and Andrew Olaf Shelton, and Jameal F. Samhouri, and Natalie C. Lowell, and Gregory D. Williams
In the face of increasing threats to biodiversity, the advancement of methods for surveying biological communities is a major priority for ecologists. Recent advances in molecular biological technologies have made it possible to detect and sequence DNA from environmental samples (environmental DNA or eDNA); however, eDNA techniques have not yet seen widespread adoption as a routine method for biological surveillance primarily due to gaps in our understanding of the dynamics of eDNA in space and ...
關鍵字: marine
出版: PeerJ Inc.
ISSN: 2167-8359
來源: DOAJ
System ID: 418204
197117
電子期刊
Adriana Amaral, and Larissa Tassinari
No presente artigo observamos um caso peculiar de fandom transcultural: os fãs brasileiros do pop coreano, chamado K-POP. Através da análise das práticas de Shipping (torcidas por casais preferidos dos fãs) de grupos musicais configuradas na observação empírica de quatro casos escolhidos através de fanpages do Facebook, discutimos diferenças e semelhanças nas apropriações culturais de fãs brasileiros em relação aos coreanos a partir de seus comportamentos. Dentre os resultados iniciais, há a con...
關鍵字: shipping
出版: Universidade do Vale do Itajaí
ISSN: 2237-4531
來源: DOAJ
System ID: 418203
197118
電子期刊
Till Roethig, and Ruben Martins Costa, and Fabia Simona, and Sebastian Baumgarten, and Ana Flor Torres, and Anand Radhakrishnan, and Manuel Ignacio Aranda Lastra, and Christian Robert Voolstra
Coral reefs are in decline. The basic functional unit of coral reefs is the coral metaorganism or holobiont consisting of the cnidarian host animal, symbiotic algae of the genus Symbiodinium, and a specific consortium of bacteria (among others), but research is slow due to the difficulty of working with corals. Aiptasia has proven a tractable model system to elucidate the intricacies of cnidarian-dinoflagellate symbioses, but characterization of the associated bacterial microbiome and the underl...
關鍵字: coral
出版: Frontiers Media S.A.
ISSN: 2296-7745
來源: DOAJ
System ID: 418202
197119
電子期刊
Camila Murussi, and Roberta Cattaneo Horn, and Adriana Santi, and Barbara Estevão Clasen, and Gabriel Reis, and Daniela Souza, and Josiane Woutheres Bortolotto, and Candida Elisa Manfio, and Vania Lucia Loro
Agricultural practices are directly related to the use of pesticides, which indiscriminately and without due care may contribute to the occurrence of numerous intoxications. Several studies have demonstrated the relationship of certain pesticides and the occurrence of oxidative stress and therefore, in recent years have developed methods of analysis of several biomarkers of cellular damage that can be measured and quantified. In this context, the objective of this study was to evaluate the possi...
關鍵字: pilot
出版: Universidade Federal de Santa Maria
ISSN: 0103-8478
來源: DOAJ
System ID: 418201
197120
電子期刊
Alberto Soares de Melo, and Lafayette Franco Sobral, and Pedro Dantas Fernandes, and Marcos Eric Barbosa Brito, and Pedro Roberto Almeida Viégas
Neste trabalho, objetivou-se estudar os efeitos de doses de nitrogênio e potássio via água de irrigação, sobre o tempo de colheita, componentes da produção: número de pencas, número de frutos pencas-1, número de frutos cacho-1 e massa do cacho planta-1, e lucratividade da bananeira Prata-Anã em tabuleiros costeiros do Estado de Sergipe. O experimento foi conduzido no campo, utilizando um arranjo fatorial 4x4 com quatro blocos casualizados, na Estação Experimental da Universidade Federal de Sergi...
關鍵字: coastal
出版: Universidade Federal de Lavras
ISSN: 1413-7054
來源: DOAJ
System ID: 418200
197121
電子期刊
Casimiro Quiñonez-Velázquez, and Juan Ramón López-Olmos
Otolith micro structure was used to determine the age and evaluate the growth of juvenile white mullet (Mugil curema) during their residence in the coastal lagoon El Conchalito, B.C.S., Mexico, from May 1997 to May 1998. Juveniles were sampled monthly during the full and ebbing phases of the maximum high tide. The juveniles studied were between 16 and 42 mm standard length (SL) and from 22 to 109 days old. The Gompertz growth model appropriately described the relationship between age and SL (r =...
關鍵字: coastal
出版: Escuela de Ciencias del Mar, Facultad de Recursos Naturales, Pontificia Universidad Católica de Valparaíso
ISSN: 0718-560X
來源: DOAJ
System ID: 418199
197122
電子期刊
Unnikrishnan B, and Mithra Prasanna, and Rekha T, and Reshmi B
<b>Objective:</b> To assess the awareness and attitude of the general public toward people living with HIV/AIDS (PLWHA) in Mangalore, a city in Coastal Karnataka. <b>Design:</b> Community-based cross-sectional study. <b>Materials and Methods:</b> The study population included 630 individuals aged 18 years and above. The information was collected using a semi structured pre-tested questionnaire. The questionnaire consisted of 24 questions regarding awareness of the modes of transmission of HIV/AI...
關鍵字: coastal
出版: Wolters Kluwer Medknow Publications
ISSN: 0970-0218
來源: DOAJ
System ID: 418198
197123
電子期刊
Shinmei I, and Kobayashi K, and Oe Y, and Takagishi Y, and Kanie A, and Ito M, and Takebayashi Y, and Murata M, and Horikoshi M, and Dobkin RD
Issei Shinmei,1,2 Kei Kobayashi,3 Yuki Oe,1 Yuriko Takagishi,1,4 Ayako Kanie,1 Masaya Ito,1 Yoshitake Takebayashi,1,5 Miho Murata,3 Masaru Horikoshi,1 Roseanne D Dobkin6 1National Center for Cognitive Behavioral Therapy and Research, National Center of Neurology and Psychiatry, Tokyo, Japan; 2Department of Neuropsychiatry, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan; 3Department of Neurology, National Center of Neurology and Psychiatr...
關鍵字: pilot
出版: Dove Medical Press
ISSN: 1176-6328
來源: DOAJ
System ID: 418197
197124
電子期刊
M. F. Khairoutdinov, and C.-E. Yang
The study attempts to evaluate the aerosol indirect effects over tropical oceans in regions of deep convection applying a three-dimensional cloud-resolving model run over a doubly-periodic domain. The Tropics are modelled using a radiative-convective equilibrium idealisation when the radiation, turbulence, cloud microphysics and surface fluxes are explicitly represented while the effects of large-scale circulation are ignored. The aerosol effects are modelled by varying the number concentration ...
關鍵字: sea
出版: Copernicus Publications
ISSN: 1680-7316
來源: DOAJ
System ID: 418196
197125
電子期刊
Jeremy Federman, and Christon Duhon
Introduction: The viability of hearing protection device (HPD) verification (i.e., fit-testing) on a large scale was investigated to address this gap in a military accession environment. Materials and Methods: Personal Attenuation Ratings (PARs) following self-fitted (SELF-Fit) HPDs were acquired from 320 US Marine Corps training recruits (87.5% male, 12.5% female) across four test protocols (1-, 3-, 5-, and 7- frequency). SELF-Fit failures received follow-up to assess potential causes. Follow-u...
關鍵字: marine
出版: Wolters Kluwer Medknow Publications
ISSN: 1463-1741
來源: DOAJ
System ID: 418195
197126
電子期刊
Giselle Cristina Silva, and Renata Albuquerque-Costa, and Jackson R Oliveira-Peixoto, and Fernando E Pessoa-Nascimento, and Pedro B de Macedo-Carneiro, and Regine H Silva dos Fernandes-Vieira
The antibacterial activity of ethanol, methanol, hexane and acetone-based extracts of the macroalgae Padina gymnospora (PG), Hypnea musciformes (HM), Ulva fasciata (UF) and Caulerpa prolifera (CP) was investigated. The disk diffusion method was used to evaluate the algae antimicrobial effect against standard strains of Vibrio parahaemolyticus, Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa and Salmonella enterica and five virulent antibiotic-resistant strains of V. brasiliensis,...
關鍵字: marine
出版: Escuela de Ciencias del Mar, Facultad de Recursos Naturales, Pontificia Universidad Católica de Valparaíso
ISSN: 0718-560X
來源: DOAJ
System ID: 418194
197127
電子期刊
Carlos Eduardo Sgnirini, and Fernando S. Torres, and Roberto Goitein
<em>Narcine brasiliensis Olfers</em> e <em>Rhinobatos horkelli</em> vivem em águas costeiras próximas ao fundo, sendo encontradas nos mesmos locais. Essas espécies foram estudadas quanto à alimentação e algumas medidas corpóreas como altura e largura relativas do corpo e largura relativa da boca. Os resultados revelaram diferenças significativas na composição de seus conteúdos estomacais. <em>N. brasiliensis</em> alimenta-se principalmente de crustáceos e poliquetos fossoriais, enquanto <em>R. h...
關鍵字: marine
出版: Eduem - Editora da Universidade Estadual de Maringá
ISSN: 1679-9283
來源: DOAJ
System ID: 418193
197128
電子期刊
Denize Adrião
The resort and tourist activity in the city of Salinópolis, Salgado Region of Pará, has brought a lout important transformation in the social and spatial organization of the place, through an accelerated valorization and land speculation in second residences (summer residences) of people on vacation and tourists. The local population, composed of traditional fishermen and small rural producers, in front of the tourist invasion process, preferring works as housekeepers in summerhouses incorporati...
關鍵字: fisherman
出版: Museu Paraense Emílio Goeldi
ISSN: 1981-8122
來源: DOAJ
System ID: 418192
197129
電子期刊
Z. Wang, and Z. An, and S. Gao, and J. Cao, and K. Kawamura, and M. Xie, and S. Hu, and G. Wang
Size-segregated (9 stages) <i>n</i>-alkanes, polycyclic aromatic hydrocarbons (PAHs) and hopanes in the urban (Baoji city in inland China), mountain (Mt. Tai in east coastal China) and marine (Okinawa Island, Japan) atmospheres over East Asia were studied using a GC/MS technique. Ambient concentrations of <i>n</i>-alkanes (1698&plusmn;568 ng m<sup>&minus;3</sup> in winter and 487&plusmn;145 ng m<sup>&minus;3</sup> in spring), PAHs (536&plusmn;80 and 161&plusmn;39 ng m<sup>&minus;3</sup>), and ho...
關鍵字: marine
出版: Copernicus Publications
ISSN: 1680-7316
來源: DOAJ
System ID: 418191
197130
電子期刊
Chairman K, and Ranjit Singh AJA, and Alagumuthu G
Objective: To evaluate the anticancer activity of the crude extracts of Rhabdastrella globostellata (R. globostellata) and Spirastrella inconstans (S. inconstans) var. moeandrina Dendy. Methods: Soxhlet extraction method was used to extract the secondary metabolites and various assays antioxidant, anticancer and various assays were carried out. The extract were tested anticancer activity against a HeLa, Raw 264.7 and Hek-293. Results: The sponge extracts tested exhibited from median to high...
關鍵字: marine
出版: Asian Pacific Journal of Tropical Disease Editorial Office
ISSN: 2222-1808
來源: DOAJ
System ID: 418190
197131
電子期刊
Cristiano R. Moreira, and Flávio C. T. Lima
The arguments for the usage of the names Gnathoplax, Roeboexodon, R. geryi, and R. guyanensis are revised. Based on the literature and museum specimens, we recommend that the neotype of Exodon guyanensis should be considered valid; that the genus Gnathoplax should be considered an objective junior synonym of Roeboexodon; and that Roeboexodon geryi should be considered an objective junior synonym of Exodonguyanensis.
關鍵字: fish
出版: Sociedade Brasileira de Ictiologia
ISSN: 1679-6225
來源: DOAJ
System ID: 418189
197132
電子期刊
T. J. Burrell, and E. W. Maas, and P. Teesdale-Spittle, and C. S. Law
Bacterial extracellular enzymes play a significant role in the degradation of labile organic matter and nutrient availability in the open ocean. Although bacterial production and extracellular enzymes may be affected by ocean acidification, few studies to date have considered the methodology used to measure enzyme activity and bacterial processes. This study investigated the potential artefacts in determining the response of bacterial growth and extracellular glucosidase and aminopeptidase activ...
關鍵字: ocean
出版: Copernicus Publications
ISSN: 1726-4170
來源: DOAJ
System ID: 418188
197133
電子期刊
F. Abrantes, and P. Cermeno, and C. Lopes, and O. Romero, and L. Matos, and J. Van Iperen, and M. Rufino, and V. Magalhães
Coastal upwelling systems account for approximately half of global ocean primary production and contribute disproportionately to biologically driven carbon sequestration. Diatoms, silica-precipitating microalgae, constitute the dominant phytoplankton in these productive regions, and their abundance and assemblage composition in the sedimentary record is considered one of the best proxies for primary production. The study of the sedimentary diatom abundance (SDA) and total organic carbon content ...
關鍵字: coastal
出版: Copernicus Publications
ISSN: 1726-4170
來源: DOAJ
System ID: 418187
197134
電子期刊
Rosimeire Ribeiro Antonio, and Angelo Antonio Agostinho, and Fernando Mayer Pelicice, and Dayani Bailly, and Edson Kioshi Okada, and João Henrique Pinheiro Dias
The present study explored the interaction between the upriver migration of fish and the blockage of their migration routes by dam construction. Specifically, we studied (i) the capacity of migratory fish to locate alternative routes in the presence of an obstacle, and (ii) the behavior of the fish after they were artificially transferred to the reservoir. With the use of the mark-recapture technique (tagging), the study was carried out near Porto Primavera Dam (UHE Engenheiro Sérgio Motta) betw...
關鍵字: fish
出版: Sociedade Brasileira de Ictiologia
ISSN: 1679-6225
來源: DOAJ
System ID: 418186
197135
電子期刊
Cristiana eCravo-Laureau, and Robert eDuran
Coastal marine sediments, where important biological processes take place, supply essential ecosystem services. By their location, such ecosystems are particularly exposed to human activities as evidenced by the recent Deepwater Horizon disaster. This catastrophe revealed the importance to better understand the microbial processes involved on hydrocarbon degradation in marine sediments raising strong interests of the scientific community. During the last decade, several studies have shown the ke...
關鍵字: coastal
出版: Frontiers Media S.A.
ISSN: 1664-302X
來源: DOAJ
System ID: 418185
197136
電子期刊
Asa Johannesen, and Alison M. Dunn, and Lesley J. Morrell
Predators use olfactory cues moved within water and air to locate prey. Because prey aggregations may produce more cue and be easier to detect, predation could limit aggregation size. However, disturbance in the flow may diminish the reliability of odour as a prey cue, impeding predator foraging success and efficiency. We explore how different cue concentrations (as a proxy for prey group size) affect risk to prey by fish predators in disturbed (more turbulent or mixed) and non-disturbed (less m...
關鍵字: aquatic
出版: PeerJ Inc.
ISSN: 2167-8359
來源: DOAJ
System ID: 418184
197137
電子期刊
Djillali Amar Bouzid, and Subhamoy Bhattacharya, and Lalahoum Otsmane
A nonlinear finite element model is developed to examine the lateral behaviors of monopiles, which support offshore wind turbines (OWTs) chosen from five different offshore wind farms in Europe. The simulation is using this model to accurately estimate the natural frequency of these slender structures, as a function of the interaction of the foundations with the subsoil. After a brief introduction to the wind power energy as a reliable alternative in comparison to fossil fuel, the paper focuses ...
關鍵字: offshore
出版: Elsevier
ISSN: 1674-7755
來源: DOAJ
System ID: 418183
197138
電子期刊
Jaime Otero, and Francisco Rocha, and Ángel F. González, and Joaquín Gracia, and Ángel Guerra
The small-scale common octopus (Octopus vulgaris) fishery in Galician waters (NW Spain) was studied using a model based on information obtained from fishers. The Gómez-Muñoz model was applied using information obtained from the artisanal Galician fleet from 1998 to 2000. This information was used to estimate catches per unit of effort (CPUE) and total catch for the whole directed creel fishery. A total of 73 interviews were conducted in 22 ports in the west part of ICES division VIIIc and 75 int...
關鍵字: coastal
出版: Consejo Superior de Investigaciones Científicas
ISSN: 0214-8358
來源: DOAJ
System ID: 418182
197139
電子期刊
Leong-Keat eChan, and Leong-Keat eChan, and Ryan J. Newton, and Ryan J. Newton, and Shalabh eSharma, and Christa B. Smith, and Pratibha eRayapati, and Pratibha eRayapati, and Alexander J. Limardo, and Christof eMeile, and Mary Ann eMoran
Marine bacteria drive the biogeochemical processing of oceanic dissolved organic carbon (DOC), a 750-Tg C reservoir that is a critical component of the global C cycle. Catabolism of DOC is thought to be regulated by the biomass composition of heterotrophic bacteria, as cells maintain a C:N:P ratio of ~50:10:1 during DOC processing. Yet a complicating factor in stoichiometry-based analyses is that bacteria can change the C:N:P ratio of their biomass in response to resource composition. We investi...
關鍵字: marine
出版: Frontiers Media S.A.
ISSN: 1664-302X
來源: DOAJ
System ID: 418181
197140
電子期刊
Florian eMauffrey, and Christine eMartineau, and Richard eVillemur
Methylophaga nitratireducenticrescens JAM1 is the only reported Methylophaga species capable of growing under anaerobic conditions with nitrate as electron acceptor. Its genome encodes a truncated denitrification pathway, which includes two nitrate reductases, Nar1 and Nar2; two nitric oxide reductases, Nor1 and Nor2; and one nitrous oxide reductase, Nos; but no nitrite reductase (NirK or NirS). The transcriptome of strain JAM1 cultivated with nitrate and methanol under anaerobic conditions show...
關鍵字: marine
出版: Frontiers Media S.A.
ISSN: 1664-302X
來源: DOAJ
System ID: 418180
197141
電子期刊
Michael Domenic Besmer, and Michael Domenic Besmer, and David Gregory Weissbrodt, and David Gregory Weissbrodt, and Bradley Eugene Kratochvil, and Juerg Andreas Sigrist, and Mathias Sebastian Weyland, and Frederik eHammes
Fluorescent staining coupled with flow cytometry (FCM) is often used for the monitoring, quantification and characterization of bacteria in engineered and environmental aquatic ecosystems including seawater, freshwater, drinking water, wastewater, and industrial bioreactors. However, infrequent grab sampling hampers accurate characterization and subsequent understanding of microbial dynamics in all of these ecosystems. A logic technological progression is high throughput and full automation of t...
關鍵字: aquatic
出版: Frontiers Media S.A.
ISSN: 1664-302X
來源: DOAJ
System ID: 418179
197142
電子期刊
Somnath Chakraborty, and Upasana Ghosh, and Thangavel Balasubramanian, and Punyabrata Das
Objective: To screen, isolate and optimize anti-white spot syndrome virus (WSSV) drug derived from various marine floral ecosystems and to evaluate the efficacy of the same in host–pathogen interaction model. Methods: Thirty species of marine plants were subjected to Soxhlet extraction using water, ethanol, methanol and hexane as solvents. The 120 plant isolates thus obtained were screened for their in vivo anti-WSSV property in Litopenaeus vannamei. By means of chemical processes, the purified ...
關鍵字: marine
出版: Wolters Kluwer Medknow Publications
ISSN: 2221-1691
來源: DOAJ
System ID: 418178
197143
電子期刊
Dimitri Brosens, and Jan Breine, and Gerlinde Van Thuyne, and Claude Belpaire, and Peter Desmet, and Hugo Verreycken
The Research Institute for Nature and Forest (INBO) has been performing standardized fish stock assessments in Flanders, Belgium. This Flemish Fish Monitoring Network aims to assess fish populations in public waters at regular time intervals in both inland waters and estuaries. This monitoring was set up in support of the Water Framework Directive, the Habitat Directive, the Eel Regulation, the Red List of fishes, fish stock management, biodiversity research, and to assess the colonization and s...
關鍵字: estuarine
出版: Pensoft Publishers
ISSN: 1313-2970
來源: DOAJ
System ID: 418177
197144
電子期刊
Paolo eMomigliano, and Paolo eMomigliano, and Rob eHarcourt, and Adam eStow
關鍵字: coral
出版: Frontiers Media S.A.
ISSN: 2296-7745
來源: DOAJ
System ID: 418176
197145
電子期刊
Osamu Matsuda, and Shingo Ishikawa, and Kouichi Kawaguchi, and Hiroki Nishizawa
Observation on the vertical distribution of the sea ice temperature was carried out at a station near Syowa Station. During the monthly observation from September 1984 to January 1985,the thickness of ice varied between 139cm and 155cm. Since the bottom ice temperature resembled the underlying seawater temperature, while the surface ice approached the air temperature, distribution of temperature generally showed a steep gradient across ice. The sea ice temperature at the surface and the bottom v...
關鍵字: sea
出版: National Institute of Polar Research
ISSN: 0085-7289
來源: DOAJ
System ID: 418175
197146
電子期刊
Qingcheng Zeng, and Luyan Yang, and Qian Zhang
In this paper, a methodology based on Bayesian Network (BN) was proposed to deal with the difficulty of risk analysis in RoPax transport. Based on data collection and expert survey, BN model for RoPax sailing risk analysis was constructed first. Then the Expectation Maximization (EM) algorithm for parameter learning and Evidence Prepropagation Importance Sampling (EPIS) algorithm for reasoning were designed. Finally, a sensitivity analysis was conducted. To validate the model algorithms, a case...
關鍵字: sailing
出版: Vilnius Gedinimas Technical University
ISSN: 1648-4142
來源: DOAJ
System ID: 418174
197147
電子期刊
K. H. Christensen, and K. H. Christensen, and A. Carrasco, and J.-R. Bidlot, and Ø. Breivik, and Ø. Breivik
In contrast to deep water waves, shallow water waves are influenced by bottom topography, which has consequences for the propagation of wave energy as well as for the energy and momentum exchange between the waves and the mean flow. The ERA-Interim reanalysis is used to assess the fraction of wave energy associated with shallow water waves in coastal regions in Europe. We show maps of the distribution of this fraction as well as time series statistics from eight selected stations. There ...
關鍵字: coastal
出版: Copernicus Publications
ISSN: 1812-0784
來源: DOAJ
System ID: 418173
197148
電子期刊
Tong Zhang, and Julia Diaz, and Caterina Brighi, and Rachel Parsons, and Sean McNally, and Amy Apprill, and Colleen Hansel
The reactive oxygen species (ROS) superoxide has been implicated in both beneficial and detrimental processes in coral biology, ranging from pathogenic disease resistance to coral bleaching. Despite the critical role of ROS in coral health, there is a distinct lack of ROS measurements and thus an incomplete understanding of underpinning ROS sources and production mechanisms within coral systems. Here, we quantified in situ extracellular superoxide concentrations at the surfaces of aquaria-hosted...
關鍵字: coral
出版: Frontiers Media S.A.
ISSN: 2296-7745
來源: DOAJ
System ID: 418172
197149
電子期刊
Henrique N. Cabral, and Filipe Castro, and Diana Linhares, and Paulo Alexandrino
The genetic differentiation of Solea solea and Solea senegalensis from several estuarine systems along the Portuguese coast was studied. Nine polymorphic isozyme loci (ACP-1*, ACP-2*, GPI-1*, GPI-2*, sMDH*, ME-1*, ME-2*, MPI* and PGM*) were analysed using starch gel electrophoresis and isoelectric focusing. Differentiation between the species was high (mean average Nei distance of 0.93). The most efficient loci in the diagnosis of the two species were ACP-1*, ME-2* and GPI-2*. S. solea showed a ...
關鍵字: estuarine
出版: Consejo Superior de Investigaciones Científicas
ISSN: 0214-8358
來源: DOAJ
System ID: 418171
197150
電子期刊
Joel E Kostka, and Andreas eTeske, and Samantha B Joye, and Ian M Head
關鍵字: marine
出版: Frontiers Media S.A.
ISSN: 1664-302X
來源: DOAJ
System ID: 418170