Hermoine J. Venter, and Cornelius C. Bezuidenhout

The concept of using specific regions of DNA to identify organisms – processes such as DNA barcoding – is not new to South African biologists. The African Centre for DNA Barcoding reports that 12 548 plant species and 1493 animal species had been barcoded in South Africa by July 2013, while the Barcode of Life Database (BOLD) contains 62 926 records for South Africa, 11 392 of which had species names (representing 4541 species). In light of this, it is surprising that aquatic macroinvertebrates ...

Jennifer M. Fitchett, and Bronwyn Grant, and Gijsbert Hoogendoorn

Climate change poses a considerable threat to low-lying coastal towns. Possible risks include flooding induced by sea-level rise, increased discomfort from changes in temperature and precipitation, more frequent extreme events, biodiversity shifts, and water shortages. For coastal towns that attract many tourists, these threats can have far-reaching economic effects and may compromise the continued viability of the tourism sector. A growing number of studies are being published on the inter-rela...

Philip Lloyd

Leslie Petrik, and Lesley Green, and Adeola P. Abegunde, and Melissa Zackon, and Cecilia Y. Sanusi, and Jo Barnes

Kamula R.A., and Rijani Y., and Sambah A.B.

Pollutant entries, either in organic or inorganic components, result in pollution and degradation of water quality. Lead (Pb) is heavy metals having the potential to become a pollutant. This research was located in waters of Bajo Island of Saleh Bay area, Dompu Regency, West Nusa Tenggara Province. This research was conducted in July 2017 using survey method (descriptive). Determination of the sampling point coordinates used GPS. Measurement of heavy metals used AAS (Atomic Absorption Spectropho...

Flavia Sant'Anna Rios, and Edith Fanta

Notothenia neglecta, endemic to the Antarctic and sub-Antarctic regions, is basically carnivorous with a wide dietary spectrum. In order to evaluate the gill rakers' morphology and histological features of gill structures in relation to their feeding habits, specimens were obtained at Admiralty Bay (King George Island, South Shetlands). Their stomach content was identified and measured and the pharyngobranchial apparatus was studied macro and microscopically. The morphology of the gill rakers an...

Edith Fanta, and Lucelia Donatti, and Sandra Freiberger

In order to improve the understanding of food detection mechanisms in the Antarctic nototheniid fish Trematomus newnesi BOULENGER, visual stimulation was tested. During the Antarctic summer of 1997/98,42 individuals, 21 belonging to each of two size classes, were obtained in Admiralty Bay (King George Island, South Shetlands). Fish tests were undertaken in aquaria maintained under controlled environmental conditions and a photoperiod of 22 hours light and 2 hours darkness. For the evaluation of ...

Gen Hashida, and Takakiyo Nakazawa, and Shuhji Aoki, and Shohei Murayama, and Takashi Yamanouchi, and Masayuki Tanaka, and Akira Shimizu, and Masahiko Hayashi, and Kunimoto Iwai

With a newly developed automatic measurement system, the partial pressure of CO_2 in the surface sea water and lower troposphere were continuously monitored on board the icebreaker SHIRASE between Japan and Antarctica from November 1987 to March 1992 as a part of the Japanese Antarctic Research Expedition (JARE). The atmospheric CO_2 concentration was high in the midnorthern hemisphere, decreased rapidly southward to a minimum in the midsouthern hemisphere, and increased slightly in the Antarcti...

Angel eBorja, and Mike eElliott, and Jesper H. Andersen, and Torsten eBerg, and Jacob eCarstensen, and Benjamin S Halpern, and Anna-Stiina eHeiskanen, and Samuli eKorpinen, and Julia S.S. Lowndes, and Georg eMartin, and Naiara eRodriguez-Ezpeleta

Traditional and emerging human activities are increasingly putting pressures on marine ecosystems and impacting their ability to sustain ecological and human communities. To evaluate the health status of marine ecosystems we need a science-based, integrated Ecosystem Approach, that incorporates knowledge of ecosystem function and services provided that can be used to track how management decisions change the health of marine ecosystems. Although many methods have been developed to assess the st...

R. Raghuraman, and C. Raghunathan

<p><em>Paracyathus pruinosus</em> Alcock, 1902, (Scleractinia: Caryophylliidae) was found from Andaman and Nicobar Islands, representing a new addition to the ahermatypic corals of India and the central Indian Ocean. The corallites of <em>Paracyathus pruinosus</em> were solitary, short, stout, elliptical and solid, mostly found under caves and slightly deep. Costae were granular, flat and equal. Septa were arranged closely and lined with granular ridges. Tentacles were found to extend only durin...

Kathy Y. Cao, and Samuel N. Markowitz

Objective: To determine the effect of residual stereopsis on vision-related abilities of low vision (LV) patients with age-related macular degeneration (AMD). Methods: Prospective non-randomized observational case series. Inclusion criteria included documented AMD, LV with best corrected visual acuity (BCVA) of 20/50–20/400 in the better eye, and ages between 50 and 90 years. Stereoacuity was measured using the near Frisby Stereotest. Vision related abilities were documented with the VA LV VFQ-4...

Marília Cunha-Lignon, and Michel M. Mahiques, and Yara Schaeffer-Novelli, and Marcelo Rodrigues, and Daniel A. Klein, and Samara C. Goya, and Ricardo P. Menghini, and Clodoaldo C. Tolentino, and Gilberto Cintrón-Molero, and Farid Dahdouh-Guebas

Sediment cores are an essential tool for the analysis of the dynamics of mangrove succession. Coring was used to correlate changes in depositional environments and lateral sedimentary facies with discrete stages of forest succession at the Cananéia-Iguape Coastal System in southeastern Brazil. A local level successional pattern was examined based on four core series T1) a sediment bank; T2) a smooth cordgrass Spartina alterniflora bank; T3) an active mangrove progradation fringe dominated by Lag...

Slađana Popović, and Gordana Subakov Simić, and Miloš Stupar, and Nikola Unković, and Dragana Predojević, and Jelena Jovanović, and Milica Ljaljević Grbić

Phototrophic microorganisms (cyanobacteria and algae) and microfungi, were identified from biofilm on the walls of the entrance of BožanaCavein west Serbia. Temperature, relative humidity and light intensity were measured, and chlorophyll a content determined. Light intensity differed from the entrance inwards. However, Chl a content was not proportional to light intensity, instead it was positively correlated to biofilm weight. Biofilm samples from two sites were also observed using a scanning ...

S. Bélanger, and M. Babin, and J.-É. Tremblay

The Arctic Ocean and its marginal seas are among the marine regions most affected by climate change. Here we present the results of a diagnostic model used to assess the primary production (PP) trends over the 1998–2010 period at pan-Arctic, regional and local (i.e. 9.28 km resolution) scales. Photosynthetically active radiation (PAR) above and below the sea surface was estimated using precomputed look-up tables of spectral irradiance, taking as input satellite-derived cloud optical thickne...

S. Peay, and N. Guthrie, and J. Spees, and E. Nilsson, and P. Bradley

Signal crayfish (Pacifastacus leniusculus) have become increasingly widespread in rivers in Great Britain since their introduction in the late 1970s, causing extensive losses of indigenous white-clawed crayfish and negative impacts on communities of aquatic plants, invertebrates and benthic fish. Angling interests are increasingly concerned about possible impacts of signal crayfish on brown trout, sea trout (Salmo trutta) and Atlantic salmon (S. salar). This study of a limestone headwater stream...

M. Alkhatib, and M. F. Lehmann, and P. A. del Giorgio

The nitrogen (N) stable isotopic composition of pore water nitrate and total dissolved N (TDN) was measured in sediments of the St. Lawrence Estuary and the Gulf of St. Lawrence. The study area is characterized by gradients in organic matter reactivity, bottom water oxygen concentrations, as well as benthic respiration rates. N isotope effects on the water column associated with the benthic exchange of nitrate (&amp;epsilon;_app) and TDN (&amp;epsilon;_sed) during benthic nit...

H. M. Atkinson, and R.-J. Huang, and R. Chance, and H. K. Roscoe, and C. Hughes, and B. Davison, and A. Schönhardt, and A. S. Mahajan, and A. Saiz-Lopez, and T. Hoffmann, and P. S. Liss

Iodine compounds were measured above, below and within the sea ice of the Weddell Sea during a cruise in 2009, to make progress in elucidating the mechanism of local enhancement and volatilisation of iodine. I₂ mixing ratios of up to 12.4 pptv were measured 10 m above the sea ice, and up to 31 pptv was observed above surface snow on the nearby Brunt Ice Shelf – large amounts. Atmospheric IO of up to 7 pptv was measured from the ship, and the average sum of HOI and ICl was 1.9 pptv. Th...

Melisa Erdilek Karabay

With increasing competition conditions and the acceleration of lobalization, organizations’ new management approach now support mployees in the direction of attaining the objectives of the organization to have more effective behaviors. However, employees in the business world are under the constant influence of factors that will affect their current working conditions negatively. In this context, job stress continues to influence today's organizational structure significantly. In this c...

Piia Post, and Tarmo Kouts

The basic parameters of extra-tropical cyclones in the northern Baltic are examined in relation to extreme sea level events at Estonian coastal stations between 1948 and 2010. The hypothesis whether extreme sea level events might be caused not by one intense extra-tropical cyclone, as suggested by earlier researchers, but by the temporal clustering of cyclones in a certain trajectory corridor, is tested. More detailed analysis of atmospheric conditions at the time of the two most extreme cases s...

Sâmia Aquino, and Edgardo Manuel Latrubesse, and Edvard Elias de Souza Filho

O rio Araguaia se constitui no principal sistema fluvial que percorre o Brasil central. Neste artigo, são apresentadas algumas observações sobre o seu comportamento hidrogeomorfológico e suas aplicações no estudo de ecossistemas aquáticos. Os resultados foram gerados pelo processamento de dados de vazão de uma série histórica de 35 anos deregistro (1970 a 2004), em nove estações hidrológicas, envolvendo o alto, médio e baixo curso. A distribuição de vazões no curso médio resulta atípica nas chei...

Clifford E. Starliper, and Barnaby J. Watten

Ship ballast water is a recognized medium for transfer and introductions of nonindigenous species. There is a need for new ballast water treatment methods that effectively and safely eliminate or greatly minimize movements of these species. The present study employed laboratory methods to evaluate the bactericidal efficacy of increased pH (pH 10.0–12.0) for exposure durations of up to 72 h to kill a variety of Gram-negative and Gram-positive bacteria including fish pathogens (Aeromonas spp., Ye...

Ivana eGazova, and Ivana eGazova, and Jan eLaczó, and Jan eLaczó, and Eva eRubinova, and Ivana eMokrisova, and Ivana eMokrisova, and Eva eHyncicova, and Ross eAndel, and Ross eAndel, and Martin eVyhnalek, and Martin eVyhnalek, and Katerina eSheardova, and Elizabeth J. Coulson, and Jakub eHort, and Jakub eHort

Older age is associated with changes in the brain, including the medial temporal lobe, which may result in mild spatial navigation deficits, especially in allocentric navigation. The aim of the study was to characterize the profile of real-space allocentric (world-centered, hippocampus dependent) and egocentric (body-centered, parietal lobe dependent) navigation and learning in young vs. older adults, and to assess a possible influence of gender. We recruited healthy participants without cogniti...

E. Martins, and A. Queiroz, and R. Serrão Santos, and R. Bettencourt

The deep-sea hydrothermal vent mussel <i>Bathymodiolus azoricus</i> lives in a natural environment characterised by extreme conditions of hydrostatic pressure, temperature, pH, high concentrations of heavy metals, methane and hydrogen sulphide. The deep-sea vent biological systems represent thus the opportunity to study and provide new insights into the basic physiological principles that govern the defense mechanisms in vent animals and to understand how they cope with microbial infections. Hen...

Giti Karimkhanlouei, and Saeedeh Mazloomzade

Background and purpose: While learner-centered language teaching has been advocated in higher education in the recent years, teacher-centered pedagogical styles seem to be predominant in several instructional settings. The bottom line is that all teachers must be equipped with a deep knowledge of pedagogical improvements and use them as instructional innovations for the betterment of their pedagogies.<br />Methods: The present study investigates the preference of the instructors for teaching in ...

Hafiz Abdullah Shakir, and Javed Iqbal Qazi, and Abdul Shakoor Chaudhry, and Shaukat Ali

Metals bioaccumulation in five organs of Cirrhinus  mrigala, Labeo  rohita and Catla catla captured from three industrial and sewage polluted downstream sites (Shahdera = B, Sunder = C and Balloki = D) were compared with a non-industrial upstream site (Siphon = A) during high (post monsoon) and low (winter) flow seasons of river Ravi. Mean concentrations of metals were significantly higher in low flow than the high flow season. Pattern of metal accumulation in the studied organs was: Zn > Fe > M...

Elson Cardoso de Jesus, and Lucas Cardoso, and Tamiris Henrique Ferreira, and Mauricio Laterça Martins, and Marília Danyelle Nunes Rodrigues

Isopods Cymothoidae are organisms that parasitize several fish species, both marine and freshwater, provoking important physiological alterations and secondary infections. The genus Braga was proposed to harbor three species of parasitic isopods in freshwater fish from South America: B. brasiliensis, B. cichlae and B. nasuta. Posteriorly, other four species were included: B. patagonica, B. amapaensis, B. fluviatilis and B. bachmanni. Regarding the geographical distribution of the genus, there ar...

Fabián Alberto Vanella, and Jorge Calvo, and Elba Rosa Morriconi, and Daniel Ramón Aureliano

Histological characteristics of the gonads and the energy contents of axial muscle, liver and gonads of Antarctic notothenioid fish collected during the LAMPOS (Latin American Polarstern Study) survey in April 2002 were analysed. Ovaries and testes were staged following histological maturity criteria. Oocyte diameters frequency were established and fecundity values were estimated. The energetic values (kJ/g) of different organs were determined using a microcalorimetric bomb. Ovaries of Chaenocep...

Taiane Barreiro Medeiros, and Laura Isabel Weber

ABSTRACT The amphipod Quadrivisio lutzi (Shoemaker, 1933) (Maeridae) inhabits the coastal lagoons of southeastern Brazil, which are highly unstable environments. Drastic reduction in the abundance and distribution of this amphipod on these lagoons has been observed. The constant recovery of its populations suggests that this species may show a reproductive strategy that helps it to persist on these environments. Therefore, our aim was to study the reproductive biology of this species in Carapebu...

Harada M, and Takeshima T, and Okayama M, and Kajii E

Masanori Harada,1 Taro Takeshima,2 Masanobu Okayama,2,3 Eiji Kajii,21Department for Support of Rural Health Care, Yamaguchi Grand Medical Center, Hofu, Yamaguchi, 2Division of Community and Family Medicine, Center for Community Medicine, Jichi Medical University, Shimotsuke, 3Division of Community Medicine and Medical Education, Kobe University Graduate School of Medicine, Kobe, Japan Purpose: To identify the differences in genotype frequencies of salt-sensitive genes between residents of fishi...

Andi Saenab, and Erika B. Laconi, and Yuli Retnani, and M. Sayuti Mas’u

This research was done to evaluate the physical characteristic and chemical quality of the complete ration in pellet form that contain shrimp by-product. The evaluation was done on several variables namely: moisture content, water activity, particle size, average collision endurance, friction endurance and angle of repose. Data obtained was analyzed based on Completely randomized design. The treatment was: R0 (complete ration without shrimps by-product), R1 (complete ration with 10% shrimps by-...

Kumaran Subramanian, and Deivasigamani Balaraman, and Dhayanithi Nagarajan Balachandran, and Rajasekar Thirunavukarasu, and Suresh Gopal, and Pugazhvendan Sampath Renuka, and Alagappan Kumarappan

Objective: To analyse experimental infection and immune system of shrimp (Penaeus monodon) against Vibrios furnissii (V. furnissii). Methods: Experimental animals were collected and acclimatized by maintaining specific temperature, pH and salinity to avoid mortality. Shrimps were experimentally infected with V. furnissii and their immune responses were monitored. After the infection all the shrimps were monitored for any symptoms, death rate in 0, 12, 24, 36, 48 h. Then haemolymph were coll...

Hersília de Andrade e Santos, and Paulo dos Santos Pompeu, and Carlos Barreira Martinez

The fishways built in Latin America were mainly based on those used in the northern hemisphere for passing salmonids upstream. However, the swimming capacity in terms of speed and endurance is a major factor concerning the design of a fishway, and this information is not available for migratory neotropical fish species. Therefore, studies on swimming performance of neotropical species is fundamental. The aim of this study was to estimate the critical, sustained and prolonged speeds for the piau-...

P. J. Pandya, and K. D. Vachhrajani

A systematic study of brachyuran crab diversity and distribution was carried out for two years on the lower estuarine mud flats of the Mahi River, the upper Gulf of Khambhat, Gujarat. A total of 10 brachyuran crab species belonging to eight genera and eight families were identified. Study documented the distribution and habitat preference of the reported species on the intertidal area. The study records the occurance of two species Dotilla intermedia and Macrophthalmus brevis, for the first time...

Getulio Teixeira Batista, and Carolina Rodrigues Bio Poletto

The Environmental Sensitivity Index Maps for Oil Spills (ESI Maps, or SAO in Portuguese) constitute an essential component and source of basic information for emergency planning, response decision support and damage evaluation in case of oil spills. This study aims at the elaboration of sensitivity maps for oil spills for the islands within the Ubatuba municipality, north coast of the State of São Paulo. The adopted methodology is based on the Technical Specifications for the production of Envir...

Oleg Burlaca

The paper presents a way to build flexible navigation tools over a big dataset of well structured data models. The mechanism is underpinned by a search engine that is used to slice and dice the database. By applying a series of consecutive groupings, the result of a search query can be organized in a hierarchical structure and browsed using traditional user interface controls.

Niber da Paz Moreira da Silva, and Djair Ernandez, and Luiz Alberto Pereira, and Francisco Capela Alves

Foram analisadas 19 amostras de SAL (NaCl), tipo grosso, oriundas de diferentes salinas, para verificação da flora microbiana e presença de bactérias nocivas em Microbiologia Alimentar. O material apresentou grande contaminação por microrganismos saprófitas, bactérias aeróbias e anaeróbias, Gram positivas e negativas, proteolíticas, pigmentadas, esporuladas, leveduras e fungos. A alta incidência das bactérias halofílicas "vermelhas", responsáveis pela deterioração de carnes, pescados e outros pr...

F. Pranovi, and D. Curiel, and A. Rismondo, and M. Marzocchi, and Mario Scattolin

Modifications in a benthic community, induced by an experimental transplant of seagrass (Cymodocea nodosa Ucria), were studied in an area located in the southern basin of the Lagoon of Venice. Two surveys, carried out in March and September 1996, indicated that species composition and numerical dominants changed with season, with increasing dissimilarity between the transplanted meadow and the surrounding area. The latter was used as a control area and was characterised by the presence of pleust...

Mark John Costello, and Simon Claus, and Stefanie Dekeyzer, and Leen Vandepitte, and Éamonn Ó Tuama, and Dan Lear, and Harvey Tyler-Walters

This paper reviews the utility and availability of biological and ecological traits for marine species so as to prioritise the development of a world database on marine species traits. In addition, the ‘status’ of species for conservation, that is, whether they are introduced or invasive, of fishery or aquaculture interest, harmful, or used as an ecological indicator, were reviewed because these attributes are of particular interest to society. Whereas traits are an enduring characteristic of a ...

Renata Y. Nishimura, and Gabriela S.F. de Castro, and Alceu A. Jordão Junior, and Daniela S. Sartorelli

Objectives: To evaluate the fatty acid composition of mature human milk of women living far from the coastal area of Brazil. Methods: Mature breast milk samples were obtained from 47 lactating women aged between 18 and 35 years, who delivered their babies at term and who exclusively or predominantly breastfed. Milk collection took place after the fifth week postpartum by hand expression. The fatty acid composition of the milk was determined by gas chromatography. Results: It was observed that th...

C. E. Raheriniaina, and Z. Randriamahatody, and E. Fanjara, and E. Fitahia, and D. Andrianasolo, and H. I. Hantanirina, and L. Razanamparany

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Chinyun LEE

摘要 本文探討德國海洋商業勢力在中國北海的發展，以及如何與帝國主義事業結合：德國商人除了在北海從事國際貿易外，也把中國勞工運輸到各國殖民地上工作，包括種植經濟作物，挖礦及鋪設鐵路。在這個過程中，中國的苦力及政府學會了交涉，為自己爭取最大利益。 關鍵字：德里、種植園、苦力貿易、坦桑尼亞、殖民地 The purpose of this article is to discuss the extension of German imperial maritime power into Pahkoi, China. In addition to their engagement with international trade there, German merchants transported Chinese laborers from Pahkoi to colonies around the world to work planting tropical crops, mining and paving railroads. Chinese coolies and the Chines...

Vivek Velayudhan Nair, and Sunila Thomas, and Jincy Thomas, and Cucoo Mariam Mathew

Osteoporosis characterized by low bone mass/osteopenia can be identified using radiomorphometric indices in routine panoramic radiographs. This study estimates the prevalence of osteopenia in 50-80 years age group, using panoramic mandibular index (PMI), mental index (MI) and mandibular cortical index (MCI). PMI, MI and MCI were applied on 36 panoramic radiographs; MI and MCI were compared with PMI. The prevalence of osteopenia was 11.1% with PMI and 44.4% with MCI. Using MI, the prevalence was ...

Maressa Ferreira-Neto, and Roberto Artoni, and Roberto Artoni, and Marcelo Vicari, and Orlando Moreira Filho, and Juan Camacho, and Mohammed Bakkali, and Claudio Oliveira, and Fausto Foresti

Ninety individuals of the characid fish Astyanax fasciatus (Cuvier, 1819) were collected at &Aacute;gua da Madalena stream (Botucatu, S&atilde;o Paulo, Brazil) and analyzed for diploid chromosome number 2n and karyotype composition as well as for the chromosomal location of the 5S and 18S ribosomal DNA (rDNA). Whereas no chromosome differences were associated with sex, three different karyomorphs with diploid chromosome numbers 2n=46, 2n=48 and 2n=50 were found. No intermediate 2n numbers were d...

S. Aksoyoglu, and U. Baltensperger, and A. S. H. Prévôt

Emissions from the marine transport sector are one of the least-regulated anthropogenic emission sources and contribute significantly to air pollution. Although strict limits were introduced recently for the maximum sulfur content in marine fuels in the SECAs (sulfur emission control areas) and in EU ports, sulfur emissions outside the SECAs and emissions of other components in all European maritime areas have continued to increase in the last two decades. We have used the air quality model...

Marta Margarete Cestari, and Priscilla Maria M. Lemos, and Ciro Alberto de Oliveira Ribeiro, and João Ricardo M. Alves Costa, and Emilien Pelletier, and Marcos V.M. Ferraro, and Mário Sérgio Mantovani, and Alberto Sergio Fenocchio

The effects of clastogenic or mutagenic agents have rarely been studied in neotropical fish species exposed to contaminated water. In this study, the genetic damage caused by lead in the widely distributed South American fish, Hoplias malabaricus, was assessed using the comet (SCGE) assay and by testing for chromosomal aberrations. Eighteen specimens were acclimatized to laboratory conditions and then chronically exposed to contaminated food by feeding prey (Cyprinus sp.) injected intraperitonea...

C.-H. Lai, and Y.-L. Wu, and C.-H. Lin

The air layer between the nocturnal boundary layer and the top of the daily mixing layer in an ozone-polluted area is known to serve as an ozone reservoir since the ozone that is produced in the mixing layer on the preceding day is effectively preserved throughout the night in the air layer. Ozone reservoir layers existing at night can enhance the accumulation of surface ozone on the following day. However, our knowledge of the characteristics of ozone reservoir layers and their effects on the d...

Alejandro Tablado, and Juan López Gappa

Siphonaria lessoni (Blainville, 1824) is the most abundant marine gastropod in the rocky intertidal zone of Buenos Aires Province, Argentina. The morphology of this species was studied in 6 sites near the city of Quequén, differing in intertidal height and degree of exposure to wave action and pollution. Shell length, width, height, and the distance from apex to posterior shell margin were measured, as well as the dry weight of both the shell and limpet body. A data matrix of 600 individuals (10...

Diana Luzia Zuza-Alves, and Sayama Samara Toscano Queiroz Medeiros, and Luanda Bárbara Ferreira Canário Souza, and Walicyranison Plinio Silva-Rocha, and Elaine Cristina Francisco, and Maria Christina Barbosa Araújo, and Reginaldo Gonçalves Lima-Neto, and Rejane Pereira Neves, and Analy Salles de Azevedo Melo, and Guilherme Maranhão Chaves

Several studies have been developed regarding human health risks associated with the recreational use of beaches contaminated with domestic sewage. These wastes contain various micro-organisms, including Candida tropicalis. In this context, the objective of this study was to characterize C. tropicalis isolates from the sandy beach of Ponta Negra, Natal, Rio Grande do Norte, Brazil, regarding the expression of in vitro virulence factors, adaptation to osmotic stress and susceptibility to antifung...

Lizeth eAvendaño, and Martha eGledhill, and Martha eGledhill, and Eric Pieter Achterberg, and Eric Pieter Achterberg, and Victoire M. C. Rérolle, and Christian eSchlosser, and Christian eSchlosser

The pH of aqueous solutions is known to impact the chemical speciation of trace metals. In this study we conducted titrations of coastal seawaters with iron and copper at pH 7.91, 7.37 and 6.99 (expressed on the total pH scale). Changes in the concentration of iron and copper that complexed with the added ligands 1-nitroso-2-napthol and salicylaldoxime respectively were determined by adsorptive cathodic stripping voltammetry - competitive ligand equilibrium (AdCSV-CLE). Interpretation of the res...

M. Hernández, and C. A. Martínez, and O. Marzo

The objective of the present paper was to determine a first approximation of coastal zone flooding by 2100, taking into account the more persistent processes of sea level variability and non-accelerated linear sea level rise estimation to assess the main impacts. The annual linear rate of mean sea level rise in the Cuban archipelago, obtained from the longest tide gauge records, has fluctuated between 0.005 cm/year at Casilda and 0.214 cm/year at Siboney. The main sea level rise effects for the ...