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https://www.readbyqxmd.com/read/28647909/organic-matter-export-to-the-seafloor-in-the-baltic-sea-drivers-of-change-and-future-projections
#1
Tobias Tamelander, Kristian Spilling, Monica Winder
The impact of environmental change and anthropogenic stressors on coastal marine systems will strongly depend on changes in the magnitude and composition of organic matter exported from the water column to the seafloor. Knowledge of vertical export in the Baltic Sea is synthesised to illustrate how organic matter deposition will respond to climate warming, climate-related changes in freshwater runoff, and ocean acidification. Pelagic heterotrophic processes are suggested to become more important in a future warmer climate, with negative feedbacks to organic matter deposition to the seafloor...
June 24, 2017: Ambio
https://www.readbyqxmd.com/read/28647904/a-cost-precision-model-for-marine-environmental-monitoring-based-on-time-integrated-averages
#2
Ulf Båmstedt, Sonia Brugel
Ongoing marine monitoring programs are seldom designed to detect changes in the environment between different years, mainly due to the high number of samples required for a sufficient statistical precision. We here show that pooling over time (time integration) of seasonal measurements provides an efficient method of reducing variability, thereby improving the precision and power in detecting inter-annual differences. Such data from weekly environmental sensor profiles at 21 stations in the northern Bothnian Sea was used in a cost-precision spatio-temporal allocation model...
July 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28647879/disposal-of-household-pharmaceuticals-in-insular-communities-social-attitude-behaviour-evaluation-and-prevention-activities
#3
Antonis A Zorpas, Maria Dimitriou, Irene Voukkali
The increase in medicine and drug consumption have resulted in identifying these emerging pollutants in all aquatic compartments, ranging from surface water and groundwater resources to the marine environment. Pharmaceuticals are an indispensable part of life today. A large number of pharmaceuticals are used in a daily basis in the treatment, prevention, cure or diagnosis of diseases or to otherwise enhance people's physical or mental well-being. This paper focuses on the evaluation of the attitude of citizens in Cyprus regarding the disposal of pharmaceuticals as well as to identify the main reasons why pharmaceutical wastes are produced...
June 25, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28647775/a-natural-calcium-rich-marine-multi-mineral-complex-preserves-bone-structure-composition-and-strength-in-an-ovariectomised-rat-model-of-osteoporosis
#4
Orlaith Brennan, Joseph Sweeney, Brian O'Meara, Amro Widaa, Franck Bonnier, Hugh J Byrne, Denise M O'Gorman, Fergal J O'Brien
Calcium supplements are used as an aid in the prevention of osteopenia and osteoporosis and also for the treatment of patients when used along with medication. Many of these supplements are calcium carbonate based. This study compared a calcium-rich, marine multi-mineral complex (Aquamin) to calcium carbonate in an ovariectomised rat model of osteoporosis in order to assess Aquamin's efficacy in preventing the onset of bone loss. Animals were randomly assigned to either non-ovariectomy control (Control), ovariectomy (OVX) plus calcium carbonate, ovariectomy plus Aquamin or ovariectomy plus Aquamin delay where Aquamin treatment started 8 weeks post OVX...
June 24, 2017: Calcified Tissue International
https://www.readbyqxmd.com/read/28647568/hepatocyte-derived-macrophage-migration-inhibitory-factor-mediates-alcohol-induced-liver-injury-in-mice-and-patients
#5
Veronica Marin, Kyle Poulsen, Gemma Odena, Megan R McMullen, Jose Altamirano, Pau Sancho-Bru, Claudio Tiribelli, Juan Caballeria, Natalia Rosso, Ramon Bataller, Laura E Nagy
BACKGROUND & AIMS: Macrophage migration inhibitory factor (MIF) is a multi-potent cytokine that contributes to the inflammatory response to injury. MIF is expressed by multiple cell types; however, the cellular source and actions of MIF in alcoholic liver disease (ALD) are not well known. Here we tested the hypothesis that non-myeloid cells, specifically hepatocytes, are an important cellular source of MIF in ALD. METHODS: MIF expression was measured in HuH7 and differentiated THP-1 cells in response to ethanol...
June 21, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28647525/catalytic-hydrolysis-of-starch-for-biohydrogen-production-by-using-a-newly-identified-amylase-from-a-marine-bacterium-catenovulum-sp-x3
#6
Yi-Rui Wu, Aihua Mao, Chongran Sun, Sabarathinam Shanmugam, Jin Li, Mingqi Zhong, Zhong Hu
An identified cold-adaptive, organic solvents-tolerant alkaline α-amylase (HP664) from Catenovulum sp. strain X3 was heterologously expressed and characterized in E. coli, and it was further applied to starch saccharification for biohydrogen production. The recombinant HP664 belongs to a member of glycoside hydrolase family 13 (GH13), with a molecular weight of 69.6kDa without signal peptides, and also shares a relatively low similarity (49%) to other reported amylases. Biochemical characterization demonstrated that the maximal enzymatic activity of HP664 was observed at 35°C and pH 9...
June 21, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28647183/activity-of-tagetes-minuta-linnaeus-asteraceae-essential-oil-against-l3-anisakis-larvae-type-1
#7
Filippo Giarratana, Daniele Muscolino, Graziella Ziino, Alessandro Giuffrida, Stefania Maria Marotta, Vittorio Lo Presti, Vincenzo Chiofalo, Antonio Panebianco
OBJECTIVE: To evaluate in vitro effects of Tagetes minuta L. essential oil (TEO) on L3 Anisakis larvae type 1. METHODS: In order to evaluate the potential use of Tagetes minuta essential oil against L3 Anisakis larvae three different media were tested: 1) a saline solution (SS); 2) an industrial marinating solution (MS); 3) sunflower seeds oil (SO). For each media and concentrations of TEO (0.1%, 0.5%, 1.0% and 5.0% v/v), 20 parasites were introduced into plastic Petri dishes (diameter 90 mm) and maintained at room temperature...
May 2017: Asian Pacific Journal of Tropical Medicine
https://www.readbyqxmd.com/read/28647152/a-first-report-of-rare-earth-elements-in-northwestern-mediterranean-seaweeds
#8
Stefania Squadrone, Paola Brizio, Marco Battuello, Nicola Nurra, Rocco Mussat Sartor, Alessandro Benedetto, Daniela Pessani, Maria Cesarina Abete
The concentrations of rare earth elements (REE) were determined by ICP-MS in dominant seaweed species, collected from three locations of the northwestern Mediterranean Sea. This is the first study to define levels and patterns of REE in macro algae from these coastal areas. Rare elements are becoming emerging inorganic contaminants in marine ecosystems, due to their worldwide increasing applications in industry, technology, medicine and agriculture. Significant inter-site and interspecies differences were registered, with higher levels of REE in brown and green macro algae than in red seaweeds...
June 21, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28647144/simultaneous-determination-of-uv-filters-and-estrogens-in-aquatic-invertebrates-by-modified-quick-easy-cheap-effective-rugged-and-safe-extraction-and-liquid-chromatography-tandem-mass-spectrometry
#9
Ke He, Anne Timm, Lee Blaney
Ultraviolet-filters (UV-filters) and estrogens have attracted increased attention as contaminants of emerging concern (CECs) due to their widespread occurrence in the environment. Most of these CECs are hydrophobic and have the potential to accumulate in aquatic organisms. To date, co-analysis of UV-filters and estrogens has not been reported due, in part, to the complex environmental matrices. Here, a multi-residue method has been developed for simultaneous determination of five UV-filters and three estrogens in tissue from aquatic and marine organisms...
June 15, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28646830/dietary-fiber-sources-consumption-and-overweight-among-polish-male-students-a-cross-sectional-study
#10
Beata Krusińska, Justyna Weronika Wuenstel, Joanna Kowalkowska, Lidia Wądołowska, Małgorzata Anna Słowińska
Background: There has been an increase in the prevalence of overweight and obesity in adolescents and young adults, especially in men than women. Many adolescents have a sedentary lifestyle and consume more processed, low-fiber foods. Objective: The aim of this study was to assess the frequency of fiber intake and its selected dietary source consumption in relation to the overweight among Polish male students. Material and Methods: This cross-sectional study involved 1,233 male students aged 13...
2017: Roczniki Państwowego Zakładu Higieny
https://www.readbyqxmd.com/read/28646669/validation-of-a-commercial-kit-aimed-to-the-detection-of-pathogenic-anisakid-nematodes-in-fish-products
#11
Serena Cavallero, Alessandro Bruno, Enrico Arletti, Monica Caffara, Maria Letizia Fioravanti, Antonella Costa, Gaetano Cammilleri, Stefania Graci, Vincenzo Ferrantelli, Stefano D'Amelio
Anisakids are parasitic nematodes responsible for a zoonosis that occurs following the ingestion of fish and fish products infected with larvae belonging to the genera Anisakis and Pseudoterranova. Rarely Contracaecum is found in association with gastric/intestinal illness, while Hysterothylacium is commonly considered not pathogenic. Although Real Time PCR assays have been recently used with the aim to detect and quantify these parasites in food products, methods applied did not undergo through extensive validation process, a feature highly desirable or mandatory in the case of testing laboratories accredited for the ISO EN 17025:2005...
June 15, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28646599/boldness-predicts-an-individual-s-position-along-an-exploration-exploitation-foraging-trade-off
#12
Samantha C Patrick, David Pinaud, Henri Weimerskirch
Individuals do not have complete information about the environment and therefore they face a trade-off between gathering information (exploration) and gathering resources (exploitation). Studies have shown individual differences in components of this trade-off but how stable these strategies are in a population and the intrinsic drivers of these differences is not well understood. Top marine predators are expected to experience a particularly strong trade-off as many species have large foraging ranges and their prey often have a patchy distribution...
June 24, 2017: Journal of Animal Ecology
https://www.readbyqxmd.com/read/28646574/a-novel-habitat-based-approach-to-predict-impacts-of-marine-protected-areas-on-fishers
#13
João B Teixeira, Rodrigo L Moura, Morena Mills, Carissa Klein, Christopher J Brown, Vanessa M Adams, Hedley Grantham, Matthew Watts, Deborah Faria, Gilberto M Amado-Filho, Alex C Bastos, Reinaldo Lourival, Hugh P Possingham
While marine protected areas (MPAs) can simultaneously contribute to biodiversity conservation and fisheries management, the global network is biased towards particular ecosystem types, as it was largely established in an ad hoc fashion. The optimization of trade-offs between biodiversity benefits and socio-economic values increases implementation success and minimizes enforcement costs in the long run, but is often neglected in marine spatial planning (MSP). Although the acquisition of spatially explicit socioeconomic data is often perceived as a costly/secondary step in MSP, it is critical to account for lost opportunities by people whose activities will be restricted, especially fishers...
June 24, 2017: Conservation Biology: the Journal of the Society for Conservation Biology
https://www.readbyqxmd.com/read/28646477/a-double-quadratic-model-for-predicting-vibrio-species-in-water-environments-of-japan
#14
Hidemasa Izumiya, Masato Furukawa, Kikuyo Ogata, Junko Isobe, Setsu Watanabe, Mari Sasaki, Kazuya Ichinose, Eiji Arakawa, Masatomo Morita, Ichiro Kurane, Makoto Ohnishi
Vibrio spp. are natural inhabitants of marine and estuarine environments. Vibrio cholerae, Vibrio parahaemolyticus, and Vibrio vulnificus are the major infectious agents for humans. Their densities are affected by environmental factors such as water temperature and salinity. The detailed contribution of each factor still remains to be elucidated. Here we conducted multi-coastal study in a 21-month period to examine relationships between environmental factors and V. cholerae, V. parahaemolyticus and V. vulnificus densities in sea surface water in eight coastal sites of four prefectures in Japan...
June 23, 2017: Archives of Microbiology
https://www.readbyqxmd.com/read/28646435/eco-friendly-synthesis-of-silver-nanoparticles-using-green-algae-caulerpa-serrulata-reaction-optimization-catalytic-and-antibacterial-activities
#15
Eman F Aboelfetoh, Rania A El-Shenody, Mohamed M Ghobara
Stable colloidal silver nanoparticles (AgNPs) were synthesized using Caulerpa serrulata (green marine algae) aqueous extract as an efficient reducing and stabilizing agent. This method is considered to be a sustainable alternate to the more complicated chemical procedures. To achieve the optimization synthesis of AgNPs, several effects such as extract concentration, contact time, pH values, and temperature were examined. The synthesized AgNPs were characterized by UV-Vis spectroscopy, FT-IR, XRD, and HR-TEM...
July 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28646231/inter-annual-variability-of-transparent-exopolymer-particles-in-the-arctic-ocean-reveals-high-sensitivity-to-ecosystem-changes
#16
Anja Engel, Judith Piontek, Katja Metfies, Sonja Endres, Pim Sprong, Ilka Peeken, Steffi Gäbler-Schwarz, Eva-Maria Nöthig
Transparent exopolymer particles (TEP) are a class of marine gel particles and important links between surface ocean biology and atmospheric processes. Derived from marine microorganisms, these particles can facilitate the biological pumping of carbon dioxide to the deep sea, or act as cloud condensation and ice nucleation particles in the atmosphere. Yet, environmental controls on TEP abundance in the ocean are poorly known. Here, we investigated some of these controls during the first multiyear time-series on TEP abundance for the Fram Strait, the Atlantic gateway to the Central Arctic Ocean...
June 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28646131/insights-on-the-drivers-of-genetic-divergence-in-the-european-anchovy
#17
Gaetano Catanese, Romain Watteaux, Iratxe Montes, Marco Barra, Paola Rumolo, Diego Borme, Bruno Buongiorno Nardelli, Vincenzo Botte, Maria Grazia Mazzocchi, Simona Genovese, Iole Di Capua, Mikel Iriondo, Andone Estonba, Paolo Ruggeri, Valentina Tirelli, Vincenzo Caputo-Barucchi, Gualtiero Basilone, Angelo Bonanno, Daniele Iudicone, Gabriele Procaccini
Anchovies represent the largest world's marine fish catches and the current threats on their populations impose a sustainable exploitment based on sound scientific information. In the European anchovy (Engraulis encrasicolus), the existence of several populations has been proposed but a global view is missing. Using a multidisciplinary approach, here we assessed the divergence among different ecotypes and its possible causes. SNPs have revealed two functionally distinct ecotypes overlapping in the Central Mediterranean, with one ecotype confined near the river estuaries...
June 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28645462/analgosedation-practices-and-the-impact-of-sedation-depth-on-clinical-outcomes-among-patients-requiring-mechanical-ventilation-in-the-emergency-department-a-cohort-study
#18
Robert J Stephens, Enyo Ablordeppey, Anne M Drewry, Christopher Palmer, Brian T Wessman, Nicholas M Mohr, Brian W Roberts, Stephen Y Liang, Marin H Kollef, Brian M Fuller
BACKGROUND: Analgesia and sedation are cornerstone therapies for mechanically ventilated patients. Despite data showing that early deep sedation in the intensive care unit influences outcome, this has not been investigated in the emergency department (ED). Therefore, ED-based sedation practices, and their influence on outcome, remain incompletely defined. This study's objectives were to describe ED sedation practices in mechanically ventilated patients, and to test the hypothesis that ED sedation depth is associated with worse outcomes METHODS: This was a cohort study on a prospectively compiled ED registry of adult, mechanically ventilated patients at a single academic medical center...
June 20, 2017: Chest
https://www.readbyqxmd.com/read/28645306/excretory-secretory-products-of-anisakid-nematodes-biological-and-pathological-roles
#19
REVIEW
Foojan Mehrdana, Kurt Buchmann
Parasites from the family Anisakidae are widely distributed in marine fish populations worldwide and mainly nematodes of the three genera Anisakis, Pseudoterranova and Contracaecum have attracted attention due to their pathogenicity in humans. Their life cycles include invertebrates and fish as intermediate or transport hosts and mammals or birds as final hosts. Human consumption of raw or underprocessed seafood containing third stage larvae of anisakid parasites may elicit a gastrointestinal disease (anisakidosis) and allergic responses...
June 23, 2017: Acta Veterinaria Scandinavica
https://www.readbyqxmd.com/read/28645178/ecological-imperatives-for-aquatic-carbon-dioxide-concentrating-mechanisms
#20
Stephen C Maberly, Brigitte Gontero
In aquatic environments, the concentration of inorganic carbon is spatially and temporally variable and CO2 can be substantially oversaturated or depleted. Depletion of CO2 plus low rates of diffusion cause inorganic carbon to be more limiting in aquatic than terrestrial environments, and the frequency of species with a CO2-concentrating mechanism (CCM), and their contribution to productivity, is correspondingly greater. Aquatic photoautotrophs may have biochemical or biophysical CCMs and exploit CO2 from the sediment or the atmosphere...
June 22, 2017: Journal of Experimental Botany
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