P. Compère, and F. Gaill, and M. Zbinden, and F. Grandjean, and G. J. Long, and M.-A. Cambon-Bonavita, and L. Corbari

The <i>Rimicaris exoculata</i> shrimp is considered as a primary consumer that dominates the fauna of most Mid-Atlantic Ridge (MAR) hydrothermal ecosystems. These shrimps harbour in their gill chambers an important ectosymbiotic community of chemoautotrophic bacteria associated with iron oxide deposits. The structure and elemental composition of the mineral concretions associated with these bacteria have been investigated by using LM, ESEM, TEM STEM and EDX microanalyses. The nature of the iron ...

J. Röhrs, and L. Kaleschke

Leads are major sites of energy fluxes and brine releases at the air-ocean interface of sea-ice covered oceans. This study presents an algorithm to detect leads wider than 3 km in the entire Arctic Ocean. The algorithm detects 50 % of the lead area that was visible in optical MODIS satellite images. Passive microwave imagery from the Advanced Microwave Scanning Radiometer – Earth Observation System (AMSR-E) is used, allowing daily observations due to the fact that AMSR-E does not depend on dayli...

C.H. Marchiori, and O.M. Silva Filho

<abstract language="por">Determinaram-se as espécies de parasitóides associados às moscas sinantrópicas coletados em iscas de peixe, em Itumbiara, Goiás. As pupas, obtidas pelo método de flutuação, foram individualizadas em cápsulas de gelatina até a emergência das moscas adultas ou de seus parasitóides. A porcentagem total de parasitismo foi 21,4%.

Gorostiaga, José M., and Díez, Isabel, and Casares, Coro, and Secilla, Antonio, and Santolaria, Alberto

An annotated check-list of the marine benthic flora of the Spanish Basque coast, based on literature records and original data, is presented. According to the present taxonomy, the known list of algae totals 372 taxa (354 species and 18 infraspecific taxa), distributed as follows: 23 Cyanophyta, 221 Rhodophyta, 74 Heterokontophyta and 54 Chlorophyta. In addition, 16 taxa are considered as taxa inquirenda and 8 as taxa excludenda. For each taxon the vertical distribution, abundance estimation, an...

Shivanand Venkatesh, and Joe Rozario, and Sanjay V Ganeshkar, and Shreya Ajmera

Aim: The purpose of this investigation was to assess and compare the anchorage loss between labial and lingual appliance systems during space closure. Materials and Methods: Twenty subjects were part of the study among which 10 subjects (mean age 21 ± 3.6 years) were treated using lingual appliance system (0.018" slot-STb™ ) and 10 subjects (mean age 19 ± 6.1 years) were treated using labial preadjusted edgewise appliance system (0.018" slot-MBT™ ). First premolar extractions were performed to e...

Daniel Leduc, and Conrad A. Pilditch

Sediment community oxygen consumption (SCOC) is a proxy for organic matter processing and thus provides a useful proxy of benthic ecosystem function. Oxygen uptake in deep-sea sediments is mainly driven by bacteria, and the direct contribution of benthic macro- and mega-infauna respiration is thought to be relatively modest. However, the main contribution of infaunal organisms to benthic respiration, particularly large burrowing organisms, is likely to be indirect and mainly driven by processes ...

DORIS SOTO, and IVÁN ARISMENDI, and JORGE GONZÁLEZ, and JOSÉ SANZANA, and FERNANDO JARA, and CARLOS JARA, and ERWIN GUZMAN, and ANTONIO LARA

In order to evaluate the present distribution patterns of salmonids and their potential effects on native fish, we sampled 11 large lakes and 105 streams, encompassing a total of 13 main hydrographic watersheds of southern Chile (39° to 52°S). Overall, trout (Salmo trutta and Oncorhynchus mykiss) accounted for more than 60 % of total fish abundance and more than 80 % of total biomass, while 40 % of the streams sampled did not have native fish. Salmon, introduced for aquaculture, such as O. kisut...

Kurath Gael, and Adams Alexandra

Melnyk Stepan, and James S Jill, and Rossignol Lanier W, and Rossignol Daniel A, and Mumper Elizabeth

<p>Abstract</p> <p>Background</p> <p>Recently, hyperbaric oxygen therapy (HBOT) has increased in popularity as a treatment for autism. Numerous studies document oxidative stress and inflammation in individuals with autism; both of these conditions have demonstrated improvement with HBOT, along with enhancement of neurological function and cognitive performance. In this study, children with autism were treated with HBOT at atmospheric pressures and oxygen concentrations in current use for this co...

Egenvall Agneta, and Lönnell Cecilia, and Johnston Christopher, and Roepstorff Lars

<p>Abstract</p> <p>Background</p> <p>Orthopaedic injury is the most common reason for lameness and wastage in sport and leisure horses. Studies on racehorses have shown differences in injury risk between trainers and training strategies. The aim was to study between riding school variation in orthopaedic health status by clinical examination and horses age, and control for change of examiner, in schools with previous high (n = 4) and low (n = 4) insurance utilisation.</p> <p>Methods</p> <p>Horse...

Lien Sigbjørn, and Hayes Ben, and Sonesson Anna K, and Moen Thomas, and Munck Hege, and Meuwissen Theo HE

<p>Abstract</p> <p>Background</p> <p>Infectious Salmon Anaemia (ISA) is a viral disease affecting farmed Atlantic salmon (<it>Salmo salar</it>) worldwide. The identification of Quantitative Trait Loci (QTL) affecting resistance to the disease could improve our understanding of the genetics underlying the trait and provide a means for Marker-Assisted Selection. We previously performed a genome scan on commercial Atlantic salmon families challenge tested for ISA resistance, identifying several put...

Liem Olivia, and Van den Berg Maartje M, and Bongers Marloes EJ, and Bekkali Noor-L-Houda, and Benninga Marc A

<p>Abstract</p> <p>Background</p> <p>Inconsistent data exist about the efficacy of probiotics in the treatment of constipation. Several studies in adults with constipation showed positive effects of probiotics on constipation. Inconsistent data exist regarding the effect of a single probiotic strain in constipated children. The aim of this pilot study was to determine the effect of a mixture of probiotics containing bifidobacteria and lactobacilli in the treatment of childhood constipation.</p> ...

MARITZA SEPÚLVEDA, and DORIS OLIVA, and ALEJANDRA URRA, and MARÍA J PÉREZ-ÁLVAREZ, and RODRIGO MORAGA, and DANIEL SCHRADER, and PATRICIA INOSTROZA, and ANGELA MELO, and HUMBERTO DÍAZ, and WALTER SIELFELD

The onshore distribution and abundance of the South American sea lion Otaria flavescens along the central Chilean coast was estimated during the period January-February 2007. Additionally, changes in population abundance during the period 1970-2007 were examined. Population surveys were based on photographs taken from boats or aircraft. A total of 16301 sea lions (CI = 16209-16375) were counted in 33 colonies (6 breeding and 27 non-breeding sites). After correction to account for the proportion ...

EUGENIA A SAR, and INÉS SUNESEN, and PAULA V FERNÁNDEZ

This study describes the diversity of the species belonging to the diatom families Thalassionemataceae Round and Rhaphoneidaceae Forti frequently found in the temperate marine coastal waters of Buenos Aires Province, Argentina, from October 1994 to September 2000. It comprises morphological, taxonomic and distributional analysis of species found in planktonic samples collected at San Clemente del Tuyú, Santa Teresita, La Lucila del Mar, Mar de Ajó, Nueva Atlantis, Pinamar and Villa Gesell. Raw a...

Nyindo Mramba, and Afrane Yaw, and Gilbreath Thomas M, and Zhou Guofa, and Kweka Eliningaya J, and Githeko Andrew K, and Yan Guiyun

<p>Abstract</p> <p>Background</p> <p>The current status of insecticide resistance in mosquitoes and the effects of insecticides on non-target insect species have raised the need for alternative control methods for malaria vectors. Predation has been suggested as one of the important regulation mechanisms for malaria vectors in long-lasting aquatic habitats, but the predation efficiency of the potential predators is largely unknown in the highlands of western Kenya. In the current study, we exami...

Belen eCarbonetto, and Monica Carolina Fabbro, and Mariela eSciara, and Analia eSeravalle, and Guadalupe eMejico, and Santiago eRevale, and Soledad eRomero, and Bianca eBrun, and Marcelo eFay, and Fabian eFay, and Martin eVazquez

Roshmi Thomas, and Anju Janardhanan, and Rintu T. Varghese, and E.V. Soniya, and Jyothis Mathew, and E.K. Radhakrishnan

Metal nanoparticle synthesis is an interesting area in nanotechnology due to their remarkable optical, magnetic, electrical, catalytic and biomedical properties, but there needs to develop clean, non-toxic and environmental friendly methods for the synthesis and assembly of nanoparticles. Biological agents in the form of microbes have emerged up as efficient candidates for nanoparticle synthesis due to their extreme versatility to synthesize diverse nanoparticles with varying size and shape. In ...

Vilásia Guimarães Martins, and Simone Canabarro Palezi, and Jorge Alberto Vieira Costa, and Carlos Prentice

A significant amount of insoluble fibrous protein, in the form of feather, hair, scales, skin and others are available as co-products of agro industrial processing. These wastes are rich in keratin and collagen. This study evaluated different fungi for the hydrolysis of insoluble fish protein residues. Proteins resulting from Micropogonias furnieri wastes through pH-shifting process were dried and milled for fermentation for 96 h. This resulted the production of keratinolytic enzymes in the medi...

Julio Cesar Fernandes Peres, and Luciana Retz de Carvalho, and Edlayne Gonçalez, and Luis Otávio Saggion Berian, and Joana D´arc Felicio

Seaweeds are subject to numerous biological interactions and sometimes to extreme abiotic conditions, so they have developed among other defense mechanisms, the ability to produce biologically active substances. Thus, these organisms produce mainly terpenes and phenols. Among others, the antifungal activity, due to its importance in human and animal health and the production of agricultural products, has been the subject of several studies. In the present work, this activity was investigated in ...

Graciela S Diniz, and Elisabete Barbarino, and João Oiano-Neto, and Sidney Pacheco, and Sergio O Lourenço

The chemical profiles of Desmapsamma anchorata, Hymeniacidon heliophila (Porifera), Bunodosoma caissarum, Renilla muelleri (Cnidaria), Aplysia brasiliana, Eledone massyae, Isognomon bicolor (Mollusca), Echinaster brasiliensis, Echinometra lucunter, Holothuria grisea, Lytechinus variegatus (Echinodermata), and Phallusia nigra (Chordata) were determined. Hydrosoluble protein was the most abundant class of substances for all species, except for the ascidian Phallusia nigra, in which the carbohydrat...

Chan AWK, and Yu DSF, and Choi KC, and Lee DTF, and Sit JWH, and Chan HYL

Aileen WK Chan, Doris SF Yu, KC Choi, Diana TF Lee, Janet WH Sit, Helen YL Chan The Nethersole School of Nursing, The Chinese University of Hong Kong, Hong Kong SAR, People&rsquo;s Republic of China Purpose: Age-related cognitive decline is a growing public health concern worldwide. More than a quarter of adults with cognitive impairment experience sleep disturbance. The objective of this pilot study was to evaluate the preliminary effects of tai chi qigong (TCQ) on improving the night-time sl...

Gustavo S Sancinetti, and Alexandre Azevedo, and Antônio L Castilho, and Adilson Fransozo, and Rogério C Costa

Upwelling events can occur in most of the oceans altering the water physical, chemical and sediment conditions and consequently the species communities dwelling the areas. For better understanding the behavior of populations inhabiting upwelling regions, the spatial and temporal distribution of a Penaeoidea shrimp was studied correlating it with the abiotic factors that vary during upwelling and non-upwelling periods in an area under influence of Cabo Frio upwelling. Bottom salinity and temperat...

Radostina Anastasova, and Mirela Marinova-Takorova, and Vladimir E. Panov

Purpose: The aim of the presented in vitro study was to evaluate the effectiveness of the laser fluorescent device DIAGNOdent in measuring changes in the level of mineralization of intact enamel surfaces etched for different time intervals and intact dentin etched for 30 sec. Material and methods: The study was performed on extracted human teeth. DIAGNOcam was used to measure the values of laser fluorescence of intact enamel and dentinal surfaces. Then the samples were treated with 37% H2PO3 e...

Fernanda Souza do Nascimento, and George Satander Sá Freire, and Brígida Miola

The marine sediment samples collected from the northeastern Brazilian continental shelf, at water depths between 20 and 80 m, consisted mainly of sands with an almost total absence of gravel and granules. Medium, coarse and very coarse sand grains are mostly composed of halimeda, lithothamnium, rodoliths and bioclastic sands with a carbonate content varying between 77 and 96 %. The chemistry in general shows a decreasing content of Ca (86.1 %) >Si (6 %) > Cl (3.6 %) > Sr (0.8 %) > K (0.66 %) > S...

AJEY KUMAR PATHAK, and UTTAM KUMAR SARKAR, and SHRI PRAKASH SINGH

Pathak AK, Sarkar UK, Singh SP. 2014. Spatial gradients in freshwater fish diversity, abundance and current pattern in the Himalayan region of Upper Ganges Basin, India. Biodiversitas 15: 186-194.The present study describes the analysis and mapping of the different measurements of freshwater fish biodiversity of the Upper Ganges basin in the Himalayan region using spatial interpolation methods of Geographical Information System. The diversity, richness and abundance of fishes for each sampling l...

Báez, J. C., and Macías, D., and De Castro, M., and Gómez–Gesteira, M., and Gimeno, L., and Real, R.

The aim of this study was to explore the possible effects of atmospheric oscillations: North Atlantic Oscillation (NAO) and Arctic Oscillation (AO), on the physical condition of bluefin tuna (Thunnus thynnus). We estimated a fitness ratio from 3,501 pairs of length–weight data based on bluefin tuna caught in bait–boat fisheries before the spawning season (January, February and March), for each length class and year. In order to obtain a single fitness ratio (K–mean) per year we determined the av...

Meyer Christopher P, and Hickerson Michael J

<p>Abstract</p> <p>Background</p> <p>Marine allopatric speciation is an enigma because pelagic larval dispersal can potentially connect disjunct populations thereby preventing reproductive and morphological divergence. Here we present a new hierarchical approximate Bayesian computation model (HABC) that tests two hypotheses of marine allopatric speciation: 1.) "soft vicariance", where a speciation involves fragmentation of a large widespread ancestral species range that was previously connected ...

Secombes Christopher J, and Houlihan Dominic F, and Douglas Alex, and Martin Samuel AM

<p>Abstract</p> <p>Background</p> <p>The immune response is an energy demanding process, which has effects in many physiological pathways in the body including protein and lipid metabolism. During an inflammatory response the liver is required to produce high levels of acute phase response proteins that attempt to neutralise an invading pathogen. Although this has been extensively studied in both mammals and fish, little is known about how high and low energy reserves modulate the response to an...

Chistoserdov Andrei, and Rodriguez-Mora Maria J, and Amaral-Zettler Linda, and Christen Richard, and Behnke Anke, and Stoeck Thorsten, and Orsi William, and Edgcomb Virginia P

<p>Abstract</p> <p>Background</p> <p>Recent advances in sequencing strategies make possible unprecedented depth and scale of sampling for molecular detection of microbial diversity. Two major paradigm-shifting discoveries include the detection of bacterial diversity that is one to two orders of magnitude greater than previous estimates, and the discovery of an exciting 'rare biosphere' of molecular signatures ('species') of poorly understood ecological significance. We applied a high-throughput ...

Lorena P. Astete-Espinoza, and Cristian W. Caceres M

El nape Neotrypaea uncinata se encuentra parasitado en sus branquias por el isópodo Ionella agassizi. Trabajos anteriores han señalado que I. agassizi provoca un efecto negativo en la biología reproductiva del nape, afectando significativamente tanto el desarrollo de los órganos reproductores como la expresión de las características sexuales secundarias. Lo anterior podría estar asociado a una disminución de las sustancias de reserva de N. uncinata, afectando de esta manera su metabolismo. En es...

Onjolo Elijah, and Tittle Robin, and Sirotin Nicole, and Pandit Jay A, and Bukusi Elizabeth A, and Cohen Craig R

<p>Abstract</p> <p>Background</p> <p>HIV/AIDS negatively impacts poverty alleviation and food security, which reciprocally hinder the rapid scale up and effectiveness of HIV care programs. Nyanza province has the highest HIV prevalence (15.3%), and is the third highest contributor (2.4 million people) to rural poverty in Kenya. Thus, we tested the feasibility of providing a micro-irrigation pump to HIV-positive farmers in order to evaluate its impact on health and economic advancement among HIV-...

Koop Ben F, and Lubieniecki Krzysztof P, and Ventura Abigail B, and Morasch Matthew R, and Keatley Kimberly A, and Phillips Ruth B, and Danzmann Roy G, and Davidson William S

<p>Abstract</p> <p>Background</p> <p>Most teleost species, especially freshwater groups such as the Esocidae which are the closest relatives of salmonids, have a karyotype comprising 25 pairs of acrocentric chromosomes and 48–52 chromosome arms. After the common ancestor of salmonids underwent a whole genome duplication, its karyotype would have 100 chromosome arms, and this is reflected in the modal range of 96–104 seen in extant salmonids (e.g., rainbow trout). The Atlantic salmon is an except...

Prchal Alice, and Graf Anna, and Bergstraesser Eva, and Landolt Markus A

<p>Abstract</p> <p>Background</p> <p>Since siblings of pediatric cancer patients are at risk for emotional, behavioral, and social problems, there is considerable interest in development of early psychological interventions. This paper aimed at evaluating the effectiveness of a two-session psychological intervention for siblings of newly diagnosed pediatric cancer patients.</p> <p>Methods</p> <p>Thirty siblings age 6-17 years were randomly assigned to an intervention group or an active control g...

Şükrü Yıldırım, and Atilla Alpbaz

Türkiye denizlerinde ağ kafeslerde çipura (Sparus aurata L., 1758), levrek (Dicentrarchus labrax L., 1758) ve alabalık (Oncorhnchus mykiss W., 1792) yetiştiriciliği yapan ve yıllık üretimi 100 ton ve üzeri olan 49 işletme, tercih ettikleri üretim faaliyetlerinin bazı özelikleri açısından incelenmiştir. Sonuç olarak alabalık yetiştiriciliği sadece Karadeniz deki işletmelerde yapılırken, levrek yetiştiriciliği incelen tüm bölgelerde yapılmaktadır. Ele alınan balık çiftliklerinin üretimlerinin topl...

YAYAN SOFYAN, and FATURRAHMAN, and SARKONO

Sarkono, Faturrahman, Sofyan Y. 2010. Isolation and identification of lactic acid bacteria from abalone (Haliotis asinina) as a potential candidate of probiotic. Nusantara Bioscience 2: 38-42. The purpose of this study was to isolate, select and characterize lactic acid bacteria (LAB) from abalone as a potential candidate probiotic in abalone cultivation system. Selective isolation of LAB performed using de Man Rogosa Sharpe medium. LAB isolate that potential as probiotics was screened. Selectio...

Pascu, M. L.

The continuously growing demand of energy and the natural limitation of the energy resources makes today’s military, economic and diplomatic strategies of every nature to be shaped by the top priority objective: the uninterrupted access to energy resources. If nowadays 40% of the world’s consumer goods are transited across the Malacca Strait and 40% of the sea-transported oil transits the Hormuz Strait, the estimates made until 2030 indicate an increase of the energy needs by 45% globally, of wh...

Alain Morand, and Pierre Commenville

Zielinski R, and Kane Low L, and Smith AR, and Miller JM

Ruth Zielinski,1 Lisa Kane Low,1&ndash;3 Abigail R Smith,4 Janis M Miller1,3 1Department of Health Behavior and Biological Sciences, School of Nursing, University of Michigan, Ann Arbor, MI, USA; 2Department of Women&rsquo;s Studies, College of Literature, Science and the Arts, University of Michigan, Ann Arbor, MI, USA; 3Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI, USA; 4Arbor Research Collaborative for Health, Ann Arbor, MI, USA Objective: The aim of this s...

Yoshino A, and Polouliakh N, and Meguro A, and Takeuchi M, and Kawagoe T, and Mizuki N

Atsushi Yoshino,1 Natalia Polouliakh,1&ndash;3 Akira Meguro,1 Masaki Takeuchi,1,4 Tatsukata Kawagoe,1 Nobuhisa Mizuki1 1Department of Ophthalmology and Visual Science, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, 2Sony Computer Science Laboratories Inc., Fundamental Research Laboratories, 3Systems Biology Institute, Tokyo, Japan; 4Inflammatory Disease Section, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA Abstract: Compo...

Chaitanya Pradeep Joshi, and Nitin Hemchandra Dani, and Smita Uday Khedkar

Background: A randomized, prospective clinical, radiographical, and histological study was conducted to evaluate healing after alveolar ridge preservation technique using two different graft materials, namely, a novel autogenous graft material i. e., autogenous tooth graft (ATG) and beta-tricalcium phosphate (β-TCP) alloplast. Materials and Methods: Fifteen patients undergoing extraction of at least three teeth were selected. Atraumatic extractions were performed. Of the three extraction sockets...

Smith Patricia C, and Page-Wilson Gabrielle, and Welt Corrine K

<p>Abstract</p> <p>Background</p> <p>Medications used to augment lactation increase prolactin secretion but can have intolerable side effects. We examined the biological activity of recombinant human prolactin (r-hPRL) as preliminary data for its use to augment lactation.</p> <p>Methods</p> <p>Healthy, non-postpartum women (n = 21) with regular menstrual cycles underwent a seven day randomized, double-blind, placebo-controlled trial of r-hPRL. Expressible galactorrhea, markers of bone turnover, ...

Grondona Jesus M, and Naumann Wilfried W, and Aschauer Beate, and Heinzeller Thomas, and Zueva Olga R, and Mashanov Vladimir S, and Cifuentes Manuel, and Garcia-Arraras Jose E

<p>Abstract</p> <p>Background</p> <p>Echinoderms and chordates belong to the same monophyletic taxon, the Deuterostomia. In spite of significant differences in body plan organization, the two phyla may share more common traits than was thought previously. Of particular interest are the common features in the organization of the central nervous system. The present study employs two polyclonal antisera raised against bovine Reissner's substance (RS), a secretory product produced by glial cells of ...

Thim Hanna L, and Shi Cheng-Yin, and Hansen Tom, and Skjesol Astrid, and Jørgensen Jorunn B

<p>Abstract</p> <p>Background</p> <p>Type I and type II interferons (IFNs) exert their effects mainly through the JAK/STAT pathway, which is presently best described in mammals. STAT1 is involved in signaling pathways induced by both types of IFNs. It has a domain-like structure including an amino-terminus that stabilizes interaction between STAT dimers in a promoter-binding situation, a coiled coil domain facilitating interactions to other proteins, a central DNA-binding domain, a SH2 domain re...

Santangelo Nicoletta, and Romano Paola, and Ascione Alessandra, and Russo Ermolli Elda

The Quaternary evolution of the main coastal basins located along the southwestern margin of the Southern Apennines has been reconstructed by integrating the huge amount of existing stratigraphical and geomorphological data. The information produced in the last twenty years has shed new light on the recent (late Middle Pleistocene to Present) history of the Campanian and Sele plains or basins. During the early Quaternary, the analysed coastal basins originated as half-grabens in response to open...

A. R. Armitage, and J. W. Fourqurean

The carbon sequestration potential in coastal soils is linked to aboveground and belowground plant productivity and biomass, which in turn, is directly and indirectly influenced by nutrient input. We evaluated the influence of long-term and near-term nutrient input on aboveground and belowground carbon accumulation in seagrass beds, using a nutrient enrichment (nitrogen and phosphorus) experiment embedded within a naturally occurring, long-term gradient of phosphorus availability within Florida ...

Debora Luciana Melzer-Ribeiro, and Sergio Paulo Rigonatti, and Monica Kayo, and Belquiz S. Avrichir, and Rafael Bernardon Ribeiro, and Bernardo Dos Santos, and Marisa Fortes, and Helio Elkis

Abstract Background Thirty percent of schizophrenia patients are treatment-resistant. Objective This is a single-blinded sham-controlled trial to assess the efficacy of electroconvulsive therapy (ECT) as augmentation strategy in patients with clozapine-resistant schizophrenia. Methods Twenty three subjects were randomly assigned to 12 sessions of ECT (N = 13) or placebo (Sham ECT) (N = 10). The primary outcome was improvement on psychotic symptoms as measured by the mean reduction of the P...

Radionovskaya T.I. , and Baeva L.S.

Some features of the educational programme of marine engineers' training in the Marine Academy of the Murmansk State Technical University have been studied. The indicators of the quality of specialists' training have been analyzed. The system of marine education in the MSTU has been proved to be effective, and the level of engineers' training allows carry out the tasks of the Arctic region development

Magdalena Krajewska, and Małgorzata Szymczak-Żyła, and Grażyna Kowalewska

An analytical procedure for the analysis of carotenoids in marine sediments rich in organic matter has been developed. Analysis of these compounds is difficult; the application of methods used by other authors required optimization for the samples studied here. The analytical procedure involved multiple ultrasound-assisted extraction with acetone followed by liquid-liquid extraction (acetone extract:benzene:water - 15:1:10 v/v/v) and HPLC analysis. The influence of column temperature on pigment...

B Dunck, and IS Nogueira, and SA Felisberto

The distribution of periphytic algae communities depends on various factors such as type of substrate, level of disturbance, nutrient availability and light. According to the prediction that impacts of anthropogenic activity provide changes in environmental characteristics, making impacted Palm swamps related to environmental changes such as deforestation and higher loads of nutrients via allochthonous, the hypothesis tested was: impacted Palm swamps have higher richness, density, biomass and bi...