David B. Stern, and Eduardo Castro Nallar, and Jason Rathod, and Keith A. Crandall

In Washington D.C., recent legislation authorizes citizens to test if products are properly represented and, if they are not, to bring a lawsuit for the benefit of the general public. Recent studies revealing the widespread phenomenon of seafood substitution across the United States make it a fertile area for consumer protection testing. DNA barcoding provides an accurate and cost-effective way to perform these tests, especially when tissue alone is available making species identification based ...

І. М. Товкун

In the article investigated problems that can generate offshore financial centers and events sent to adjusting of activity of such centers. Essence, terms of activity, classification of world offshore financial centers, is considered. Drawn conclusion that Ukraine also must set forth the legal position through this question.

G. BAZIGOS, and S. KAVADAS

The paper presents the quality problem of fishery statistics produced by the conducted land-based and sea-going, large scale sample surveys of the survey programme of the Institute of Marine Biological Resources of the Hellenic Centre for Marine Research (IMBR/HCMR) in Greece, and the optimality strategies developed in their sampling designs for the maximization of precision of the calculated sample estimates for a given cost of sampling. The optimality problems of the sampling designs of the in...

M. Messmer, and M. Messmer, and J. J. Gómez-Navarro, and J. J. Gómez-Navarro, and J. J. Gómez-Navarro, and C. C. Raible, and C. C. Raible

<p class="p">Extratropical cyclones of type Vb, which develop over the western Mediterranean and move northeastward, are major natural hazards that are responsible for heavy precipitation over central Europe. To gain further understanding in the governing processes of these Vb cyclones, the study explores the role of soil moisture and sea surface temperature (SST) and their contribution to the atmospheric moisture content. Thereby, recent Vb events identified in the ERA-Interim reanalysis ...

Jennifer J Stewart, and Colleen M Bianco, and Katherine R Miller, and Kathryn J Coyne

Heterosigma akashiwo is an excellent candidate for growth on industrial emissions, since this alga has the ability to metabolize gaseous nitric oxide (NO) into cellular nitrogen via a novel chimeric protein (NR2-2/2HbN) and also tolerates wide fluctuations in temperature, salinity, and nutrient conditions. Here, we evaluated biomass productivity and composition, photosynthetic efficiency, and expression of NR2-2/2HbN for Heterosigma growing on simulated flue gas containing 12% CO2 and 150 ppm NO...

M. L. Miranda, and N. I. H. Mustaffa, and T. B. Robinson, and C. Stolle, and M. Ribas-Ribas, and O. Wurl, and O. Zielinski

We investigated the influence of solar radiation on biogeochemical parameters of the sea surface microlayer (SML), including the spectroscopic composition of FDOM, and biotic and abiotic parameters. We calculated the humification index, biological index, and recently produced material index from the ultraviolet spectra to characterize the dynamic environment of the SML. The humification index ranged from 4 to 14 in the SML and 14 to 22 in underlying water (ULW). An inverse relation for this inde...

Felipe Alonso, and Maximiliano Cánepa, and Renata Guimarães Moreira, and Matías Pandolfi

In this work we describe for the first time the social and reproductive behavior of the Neotropical fish Cichlasoma dimerus (Heckel, 1840) [Perciformes: Cichlidae], endemic to the Paraná River basin, using a comprehensive-integral approach, including morphological and physiological features. This substrate breeding fish has biparental care of the fry and presents a dominance hierarchy that determines access to breeding territories among males, and to males with territories among females. Gregari...

Camilo Andrés Roa-Fuentes, and Lilian Casatti, and Renato de Mei Romero

We tested the contribution of the phylogenetic and specific components to the ecomorphological structure of stream fish from the upper Paraguai River and upper São Francisco River basins, and identified nodes in the phylogenetic tree at which major ecological shifts occurred. Fish were sampled between June and October of 2008 in 12 streams (six in each basin). In total, 22 species from the upper Paraguai River basin and 12 from the upper São Francisco River were analyzed. The ecomorphological pa...

Torén K, and Murgia N, and Olin AC, and Hedner J, and Brandberg J, and Rosengren A, and Bergström G

Kjell Tor&eacute;n,1,2 Nicola Murgia,1,2 Anna-Carin Olin,1 Jan Hedner,3 John Brandberg,4 Annika Rosengren,5 G&ouml;ran Bergstr&ouml;m51Section of Occupational and Environmental Medicine, Sahlgrenska Academy, University of Gothenburg, Sweden; 2Section of Occupational Medicine, Respiratory Diseases and Toxicology, University of Perugia, Italy; 3Department of Medicine/Lung Medicine, Sahlgrenska Academy, University of Gothenburg, 4Department of Radiology, Institute of Clinical Sciences, Sahlgrenska ...

S. J. Andrews, and S. C. Hackenberg, and L. J. Carpenter

The oceans are a key source of a number of atmospherically important volatile gases. The accurate and robust determination of trace gases in seawater is a significant analytical challenge, requiring reproducible and ideally automated sample handling, a high efficiency of seawater–air transfer, removal of water vapour from the sample stream, and high sensitivity and selectivity of the analysis. Here we describe a system that was developed for the fully automat...

Sunil Munakomi, and Deepak Poudel

Objective To ascertain the predictive value of intra-operative FLOW 800 vascular map model in predicting onset of post-operative clinical vasospasm and delayed cerebral ischemia among patients undergoing micro-vascular clipping of ruptured intracranial aneurysms.  Material and methods A total of 40 patients were enrolled in the study and their variables such as age, World Federation of Neurological Surgeons (WFNS) grade at presentation, Computerized Tomography (CT) Fisher grading, location of th...

J. Cardoso, and J. Cardoso, and S. M. Almeida, and T. Nunes, and M. Almeida-Silva, and M. Cerqueira, and C. Alves, and F. Rocha, and P. Chaves, and M. Reis, and P. Salvador, and B. Artiñano, and C. Pio

<p>PM₁₀ aerosol was sampled in Santiago, the largest island of Cabo Verde, for 1 year, and analysed for elements, ions and carbonaceous material. Very high levels of dust were measured during the winter months, as a result of the direct transport of dust plumes from the African continent. Ionic and mass balances (IMBs) were applied to the analysed compounds, permitting the determination of six to seven different processes and source contributions to the aerosol loading: insolubl...

Abo Bakr A. Mitwaly, and Ahmed M. Abbas

Objectives: Adhesions developed after cesarean sections (CS) vary according to the number of repeat section. Delivery times were reported to increase with increased number of CS. Materials and Methods: This is a prospective cohort study done in Assiut Women Health Hospital from August 2012 to August 2015 to evaluate the implications of doing adhesiolysis at CS either before delivery of the fetus or after that on maternal morbidity during current CS and recurrence rate in next se...

Eglė Zuzevičiūtė, and Loreta Kelpšaitė

<p>The Lithuanian coast of the south eastern part of the Baltic Sea represents a generic type of more or less straight, high-energy (in the Baltic Sea conditions), actively developing coasts that contain a relatively large amount of finer, mobile sediments, are open to predominating wind directions and are exposed to wave activity for a wide range of wave approach directions. The combination of the angular distribution of winds and the geometry of the coast are such that the wave-induced long-sh...

S.-H. Cheon, and B. D. Hamlington, and K.-D. Suh

<p>Since the advent of the modern satellite altimeter era, the understanding of the sea level has increased dramatically. The satellite altimeter record, however, dates back only to the 1990s. The tide gauge record, on the other hand, extends through the 20th century but with poor spatial coverage when compared to the satellites. Many studies have been conducted to create a dataset with the spatial coverage of the satellite datasets and the temporal length of the tide gauge records by find...

Maria Murgarella, and André Corvelo, and Antonio Figueras

In the autonomous community of Galicia (NW Spain), <i>M. galloprovincialis</i> is a natural resource of high economic importance to the economy of this region. More than 250,000 MTs of mussels are produced per year, representing 40% of the European production of this bivalve and 80% of the marine aquacultural production of the country. Besides its aquaculture interest, study of the biology <i>M. galloprovincialis</i> may also help to understand better fundamental aspects of molluscan biology. On...

Louis Taverne, and Luigi Capasso

The osteology of <em>Acrorhinichthys poyatoi</em> gen. et sp. nov., a pycnodontid fish from the marine Cenomanian (Late Cretaceous) of Lebanon, is studied in detail. The new fossil genus belongs to the order Pycnodontiformes, but is less evolved than the Pycnodontidae. It still exhibits a few bony plates (= <em>tesserae</em>) in the gular region, 3 teeth on the premaxilla and 5 teeth on the dentary, and its parietal is devoid of a brush-like process. It shares a few characters with <em>Akromysta...

C. Rousset, and M. Vancoppenolle, and G. Madec, and T. Fichefet, and S. Flavoni, and A. Barthélemy, and R. Benshila, and J. Chanut, and C. Levy, and S. Masson, and F. Vivier

The new 3.6 version of the Louvain-la-Neuve sea ice model (LIM) is presented, as integrated in the most recent stable release of Nucleus for European Modelling of the Ocean (NEMO) (3.6). The release will be used for the next Climate Model Inter-comparison Project (CMIP6). Developments focussed around three axes: improvements of robustness, versatility and sophistication of the code, which involved numerous changes. Robustness was improved by enforcing exact conservation through the inspection of...

Patrick Grootaert, and Isabella Van De Velde, and Igor V. Shamshev

Two new species of <em>Elaphropeza</em> Macquart, 1827 are described from the northeast coast of Bali (Indonesia): <em>Elaphropeza triseta</em> sp. nov. belonging to the <em>ephippiata</em>-group and <em>E. balinensis</em> sp. nov. belonging to the <em>biuncinata</em>-group. A COI Neighbour-Joining tree is given for the Southeast Asian <em>Elaphropeza</em> species showing large genetic distances between the species. The morphological characterisation of the <em>ephippiata</em>-group and the <em>...

M. C. Nash, and S. Martin, and J.-P. Gattuso

Red calcareous coralline algae are thought to be among the organisms most vulnerable to ocean acidification due to the high solubility of their magnesium calcite skeleton. Although skeletal mineralogy is proposed to change as CO₂ and temperature continue to rise, there is currently very little information available on the response of coralline algal carbonate mineralogy to near-future changes in <i>p</i>CO₂ and temperature. Here we present results from a 1-year controlled l...

Kim Aleksander Tallaksen Halvorsen, and Kim Aleksander Tallaksen Halvorsen, and Kim Aleksander Tallaksen Halvorsen

Recent studies have shown that harvesting wild population may exert direct selection on growth rate independently of size, as fast growth and correlated behaviour traits may increase the probability of being captured in fisheries. Harvesting on species with sexual dimorphism in growth can therefore be selective against the faster growing sex. This hypothesis was tested in a commercial fishery of a species with males growing faster than females, the corkwing wrasse (Symphodus melops). We conducte...

T. R. Jones, and J. W. C. White, and T. Popp

Ice cores at Siple Dome, West Antarctica, receive the majority of their precipitation from Pacific Ocean moisture sources. Pacific climate patterns, particularly the El Niño–Southern Oscillation (ENSO) and the Southern Annular Mode (SAM), affect local temperature, atmospheric circulation, snow accumulation, and water isotope signals at Siple Dome. We examine borehole temperatures, accumulation, and water isotopes from a number of shallow ice cores recovered from a 60 km north–south transect of t...

L. Alfonso, and G. B. Raga

In order to estimate the anthropogenic influence of gas and aerosol emissions from the Petroleum Industry in maritime zones with clouds of small vertical extent, a numerical 1-D Eulerian cloud-chemical model with detailed microphysics (Alfonso and Raga, 2002) is used to simulate the influence of water soluble organic compounds (WSOC) and organic+inorganic gas emissions on cloud development. Following Mircea et al. (2002), we tested the sensitivity of the cloud and precipitation development in th...

Valderrama N. Yhovana, and Ñustez L. Carlos E., and Duarte D. Alvaro

En la zona de vega del río Arauca, en el municipio de Arauquita, durante el semestre 8-95, se evaluaron 25 líneas de fríjol caraota, suministradas por el Programa de Fríjol del CIAT y un material local. La región se encuentra a 155 m.s.n.m., con una temperatura media de 27°C y precipitación pluvial promedia anual de 2410 mm. Se utilizó un diseño de bloques completos al azar con cuatro repeticiones y una densidad de población de 133.333 plantas por hectárea. Los genotipos evaluados, presentaron p...

Danijela TULJAK-SUBAN, and Valter SUBAN

Efficient organization of maritime industry is based on adequate human resources. Knowledge and skills are the results of a well organized study process and training. Since education is part of the public administration, the European Quality Management tool for the Public Sector - Common Assessment Framework (CAF) could be used, in accordance with the STCW convention requirements as a starting point to develop a model that allows quantitative assessment of the Maritime Education and Training (ME...

HOLOSTENCO Daniela, and ONĂRĂ Dalia Florentina, and SUCIU Radu, and HONŢ Ș tefan, and PARASCHIV Marian

The NW Black Sea basin supports sympatric population of beluga (Huso huso), stellate sturgeon (Acipenser stellatus) and Russian sturgeon (A. gueldenstadetii). These ecologically similar fish exhibit varying life strategies during their extended juvenile period andappear to overlap at some stages within the marine coastal waters. The aim of the study was to assess the distribution and genetic diversityof sturgeons feeding in the Black Sea coastal area of the Danube Delta Biosphere Reserve (DDBR)...

A. J. Pinsonneault, and H. D. Matthews, and E. D. Galbraith, and A. Schmittner

Anthropogenic carbon dioxide (CO₂) emissions are acidifying the ocean, affecting calcification rates in pelagic organisms, and thereby modifying the oceanic carbon and alkalinity cycles. However, the responses of pelagic calcifying organisms to acidification vary widely between species, contributing uncertainty to predictions of atmospheric CO₂ and the resulting climate change. At the same time, ocean warming caused by rising CO₂ is expected to drive increased gr...

Dita Puji Laksana, and Siti Subaidah, and Muhammad Zairin Junior, and , Alimuddin, and Odang Carman

<p class="BasicParagraph" align="center"><strong>ABSTRACT</strong></p><p class="BasicParagraph" align="center"><strong> </strong></p><p class="BasicParagraph">This research was conducted to determine the optimum immersion time of recombinant giant grouper growth hormone (<em>Ephinephelus lanceolatus</em>; r<em>El</em>GH) at a dose of 15 mg/L that generated highest growth of white shrimp post-larvae (PL). PL was bath-immersed for one, two, and three hours. Two types of control was provided, namel...

Cristian-Valeriu PATRICHE, and Bogdan ROŞCA, and Radu Gabriel PÂRNĂU, and Dan Laurenţiu STOICA

The present study attempts to test the performance of two statistical approaches, namely the binary logistic regression and fuzzy techniques for spatial prediction of soil types. The study area is Dobrovăţ basin, located in NE Romania, within the Central Moldavian Plateau. The input parameters are the digital elevation model, slope, topographic wetness index, mean annual temperatures and precipitations. The logistic regression approach proved successful in estimating the spatial probabilities of...

A. Voldoire, and B. Decharme, and J. Pianezze, and J. Pianezze, and C. Lebeaupin Brossier, and F. Sevault, and L. Seyfried, and V. Garnier, and S. Bielli, and S. Valcke, and A. Alias, and M. Accensi, and F. Ardhuin, and M.-N. Bouin, and M.-N. Bouin, and V. Ducrocq, and S. Faroux, and H. Giordani, and F. Léger, and P. Marsaleix, and R. Rainaud, and J.-L. Redelsperger, and E. Richard, and S. Riette

This study presents the principles of the new coupling interface based on the SURFEX multi-surface model and the OASIS3-MCT coupler. As SURFEX can be plugged into several atmospheric models, it can be used in a wide range of applications, from global and regional coupled climate systems to high-resolution numerical weather prediction systems or very fine-scale models dedicated to process studies. The objective of this development is to build and share a common structure for the atmosphere–...

C. N. Williams, and S. L. Cornford, and T. M. Jordan, and J. A. Dowdeswell, and M. J. Siegert, and C. D. Clark, and D. A. Swift, and A. Sole, and I. Fenty, and J. L. Bamber

Bed topography is a critical boundary for the numerical modelling of ice sheets and ice&ndash;ocean interactions. A persistent issue with existing topography products for the bed of the Greenland Ice Sheet and surrounding sea floor is the poor representation of coastal bathymetry, especially in regions of floating ice and near the grounding line. Sparse data coverage, and the resultant coarse resolution at the ice&ndash;ocean boundary, poses issues in our ability to model ice flow advance and re...

William Gerald Ambrose Jr., and William Gerald Ambrose Jr., and Lisa eClough, and Jeffrey eJohnson, and Jeffrey eJohnson, and Michael eGreenacre, and Michael eGreenacre, and David eGriffith, and Michael eCarroll, and Alex eWhiting

Humans who interact directly with local ecosystems possess traditional ecological knowledge that enables them to detect and predict ecosystem changes. Humans who use scientific ecological methods can use species such as mollusks that lay down annual growth rings to detect past environmental variation and use statistical models to make predictions about future change. We used traditional ecological knowledge shared by local Iñupiaq, combined with growth histories of two species of mollusks, at d...

Bruna Matturro, and Carla Ubaldi, and Simona Rossetti

The toxicity of polychlorinated biphenyls (PCB) can be efficiently reduced in contaminated marine sediments through the reductive dechlorination process lead by anaerobic organohalide bacteria. Although the process has been extensively investigated on PCB-spiked sediments, the knowledge on the identity and metabolic potential of PCB-dechlorinating microorganisms in real contaminated matrix is still limited. Aim of this study was to explore the composition and the dynamics of the microbial commun...

Seyed Hesam Kazemi, and Seyed Yousef Paighambari, and Moslem Daliri, and Reza Abaspour Naderi

Length-weight relationships (LWRs), relative condition factor (Krel), relative weight (Wr) and optimal length (Lopt) were calculated for five important commercial fishes from Iranian waters of the Persian Gulf and Oman Sea. Samples were collected from 2011 and December 2012 in 11 stations in three Iranian provinces (Hormuzgan, Khozestan and Sistan and baluchestan) using trawl and gillnets. Also, length-length relationships (LLRs) for Pampus argenteus and Scomberomorus commerson were computed. Th...

Atsushi Nanami, and Taku Sato, and Yuuki Kawabata, and Junichi Okuyama

White-streaked grouper (Epinephelus ongus) is an important fisheries target and forms spawning aggregations at particular spawning grounds. The aims of the present study were to investigate the ecological characteristics of annual spawning aggregations such as (1) spatial variations in the density of E. ongus at the spawning ground, (2) the relationship between fish density and environmental variables, (3) inter-annual variations in the spawning aggregation, (4) the proportion of males to female...

D. Smith, and L. Cross, and J. Rivet, and S. Hall

Measurement of sediment deposition and erosion in coastal areas is a challenge due to soft shifting sediments, but is critical to assessing loss or restoration of coastal sediments and wetlands. The aim of this project was to design and construct a semi-autonomous boat with water depth measuring capabilities. It was intended to map the depth of coastal wetlands to determine erosion rates and assess coastal restoration effects. Depth-measuring equipment was incorporated into an autonomous pontoon...

Manar El Samak, and Samar M. Solyman, and Amro Hanora

Marine invertebrates-associated microorganisms were considered to be important sources of marine bioactive products. This study aims to isolate marine invertebrates associated bacteria with antimicrobial activity from the Red Sea and test their biosynthetic potential through the detection of PKS and NRPS gene clusters involved with the production of bioactive secondary metabolites. In this respect, fifty bacterial strains were isolated from eight different Red Sea marine invertebrates and screen...

Kiran Gupta

<p class="Default">A study was performed for biomonitoring the toxicity of lead (Pb) in water hyacinth <em>(Eichhornia crassipes). </em>To assess phytotoxic response of the plant against Pb chlorophyll content, protein content and NR activity has been observed while genotoxiocity was analyzed by study of mitotic index and micronuclei (MNCs) as genotoxic end point. For this purpose, Plants of <em>Eichhornia crassipes </em>were exposed to various concentrations of Pb (0.0, 1, 2, 4 and 8 ppm) for 2...

Cheryl L. Morrison, and Luke Iwanowicz, and Thierry M. Work, and Elizabeth Fahsbender, and Mya Breitbart, and Cynthia Adams, and Deb Iwanowicz, and Lakyn Sanders, and Mathias Ackermann, and Robert S. Cornman

Chelonid alphaherpesvirus 5 (ChHV5) is a herpesvirus associated with fibropapillomatosis (FP) in sea turtles worldwide. Single-locus typing has previously shown differentiation between Atlantic and Pacific strains of this virus, with low variation within each geographic clade. However, a lack of multi-locus genomic sequence data hinders understanding of the rate and mechanisms of ChHV5 evolutionary divergence, as well as how these genomic changes may contribute to differences in disease manifest...

Junbo Wang, and Meihong Xu, and Rui Liang, and Ming Zhao, and Zhaofeng Zhang, and Yong Li

Background: The goal of the present study was to investigate the wound-healing potential of marine collagen peptides (MCPs) from chum salmon skin administered to rats following cesarean section (CS). Methods: Ninety-six pregnant Sprague-Dawley rats were randomly divided into four groups: a vehicle group and three MCP groups. After CS, rats were intragastrically given MCPs at doses of 0, 0.13, 0.38, 1.15 g/kg*bw, respectively. On postoperative days 7, 14, and 21, the uterine bursting pressure, sk...

N. Boukmouche, and N. Azzouz, and L. Bouchama, and J.P. Chopart, and Y. Bouznit

In this paper, the synthesis and characterization of activated carbon from marine Posidonia Oceanica were studied. The activated carbon was prepared by a simple process namely pyrolysis under inert atmosphere. The activated carbon can be used as electrodes for supercapacitor devices. X-ray diffraction result revealed a polycrystalline graphitic structure. While scanning electron microscope investigation showed a layered structure with micropores. The EDS analysis showed that the activated carbon...

A.C. BANKS, and P. DRAKOPOULOS, and M. TSIMPLIS

The European Union project ‘GAVDOS’ (MERTIKAS & PAVLIS, 1999) has been designed to lead to the establishment of a calibration and sea level monitoring site for the JASON-1 and ENVISAT satellites as well as the GLObal Sea level monitoring System (GLOSS). Within the context of this project, nearly ten years of TOPEX/POSEIDON satellite altimetry data (cycle 1 to 364) from the vicinity of the Gavdos Island (Crete, Greece) have been processed and analysed. The results presented here are from the appl...

CJ eOlsson, and CJ eOlsson, and Peter eLundström

The most efficient way to acquire motor skills may be through physical practice. Nevertheless, it has also been shown that action observation may improve motor performance. The aim of the present pilot study was to examine a potential action observation paradigm used to 1) capture the superior performance of expert athletes and 2) capture the underlying neural mechanisms of successful action observation in relation to task experience. We used functional magnetic resonance imaging (fMRI) to measu...

Mohamed S. El-Mashjary, and Attaala M. Ali

This paper represents the beginning of a reference data base for the long term assessment and control of environmental impacts on the coral reef habitat of the Balhaf Bay, Gulf of Aden, following the development of an industrial complex on the bay. Present results reveal a high surface water temperature in summer with the tendency for relatively low temperature in the winter months. Bottom water temperature undergoes significant seasonal variation, with the annual difference at the two studied ...

Kerry Hadfield, and Niel Bruce, and Nico Smit

The genus Ceratothoa Dana, 1852 is revised for South African waters and re-diagnosed. Ceratothoa retusa (Schioedte &amp; Meinert, 1883) is recorded from the eastern coast, and Ceratothoa africanae sp. n. and C. famosa sp. n. are described; C. imbricata (Fabricius, 1775) and C. trigonocephala (Leach, 1818), are redescribed, revised and excluded from the South African fauna. Ceratothoa africanae sp. n. can be distinguished by the stout body shape of the female; triangular cephalon with a pointed r...

Nicole G. Power, and Moss E. Norman, and Kathryne Dupré

There is a growing body of research documenting the impacts of fisheries collapses on communities and fisheries workers. Less attention has been paid to the sustainable use of fisheries resources so that future generations have access to these resources, or to the creation of mechanisms that might contribute to the intergenerational continuity of recruitment of fisheries workers and the regeneration of fisheries communities. In this paper we report on young people's experiences and perceptions o...

Vasilis Gerovasileiou, and Chariton Charles Chintiroglou, and Despoina Konstantinou, and Eleni Voultsiadou

Although sponges constitute the dominant sessile organisms in marine caves, their functional role as ecosystem engineers has received little attention in this habitat type. In this study the associated macrofauna of the massive/tubular ecosystem-engineering sponges Agelas oroides and Aplysina aerophoba was studied across distinct ecological zones of two eastern Mediterranean caves. Our results revealed that the examined sponges supported a considerable associated macrofauna. A total of 86 associ...

Huajun eZhang, and Su eZhang, and Yun ePeng, and Yi eLi, and Zhangran eChen, and Hong eXu, and Zhiming eYu, and Wei eZheng, and Tianling eZheng

Phaeocystis globosa blooms in eutrophication waters can cause severely damage in marine ecosystem and consequently influence human activities. This study investigated the effect and role of an algicidal actinomycete (Streptomyces sp. JS01) on the elimination process of P. globosa. JS01 supernatant could alter algal cell membrane permeability in 4 h when analyzed with flow cytometry. Reactive oxygen species (ROS) levels were 7.2 times higher than that at 0 h following exposure to JS01 supernatant...

Eva Aylagas, and Iratxe Menchaca, and Aitor Laza-Martínez, and Sergio Seoane, and Javier Franco

The dinoflagellate Alexandrium minutum and the haptophyte Prymnesium parvum are well known for their toxin production and negative effects in marine coastal environments. A. minutum produces toxins which cause paralytic shellfish poisoning in humans and can affect copepods, shellfish and other marine organisms. Toxins of P. parvum are associated with massive fish mortalities resulting in negative impacts on the marine ecosystem and large economic losses in commercial aquaculture. The aim of this...

Leandro Breseghelo, and Márcia Pereira Cardoso, and Rodinelli Borges-de-Oliveira, and Marcelo Ferreira da Costa, and José Clecildo Bezerra Barreto, and Simone Maria Teixiera de Sabóia-Morais, and Áureo Tatsumi Yamada

O flúor é muito utilizado pelo homem e facilmente encontrado na natureza. Por isso, vários estudos foram realizados visando a toxicidade e o seu efeito cumulativo nos tecidos animais. É descrito que o fluoreto de sódio pode ser empregado no controle do hospedeiro da esquistossomose (Biomphalaria glabrata). Visando a preservação do meio aquático, propõe-se a verificação do efeito do fluoreto de sódio em peixes (Poecilia vivipara). Dez peixes foram submetidos à água declorinada (GC) e o restante f...