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https://www.readbyqxmd.com/read/28918247/erato-polymnioides-a-novel-hg-hyperaccumulator-plant-in-ecuadorian-rainforest-acid-soils-with-potential-of-microbe-associated-phytoremediation
#1
Irene Chamba, Daniel Rosado, Carolina Kalinhoff, Selvaraj Thangaswamy, Aminael Sánchez-Rodríguez, Manuel Jesús Gazquez
Mercury (Hg) accumulation capacity was assessed in three plant species (Axonopus compressus, Erato polymnioides, and Miconia zamorensis) that grow on soils polluted by artisanal small-scale gold mines in the Ecuadorian rainforest. Individuals of three species were collected at two sampling zones: i) an intensive zone (IZ, 4.8 mg Hg kg(-1) of soil) where gold extraction continues to occur, and ii) a natural zone (NZ, 0.19 mg Hg kg(-1) of soil). In addition, the percentage of arbuscular mycorrhizal fungi (AMF) colonization was determined in plant roots and seven fungal morphotypes isolated from rhizospheric soil...
August 30, 2017: Chemosphere
https://www.readbyqxmd.com/read/28913166/anisakidae-nematodes-isolated-from-the-flathead-grey-mullet-fish-mugil-cephalus-of-buenaventura-colombia
#2
Jenniffer Alejandra Castellanos, Andrés Ricardo Tangua, Liliana Salazar
Anisakiasis is a parasitic infection caused by larval stages of nematodes of the genus Anisakis, Pseudoterranova and Contracaecum, of the Anisakidae family. The lifecycle of these nematodes develops in aquatic organisms and their final hosts are marine mammals. However, humans can act as accidental hosts and become infected with infective stage larvae (L3) by consuming raw or undercooked fish or shellfish carrying the parasite. Of this group of parasites, the genus Anisakis is the most studied: its presence in humans is associated with non-specific gastrointestinal symptoms or allergic responses that can trigger anaphylactic shock...
December 2017: International Journal for Parasitology. Parasites and Wildlife
https://www.readbyqxmd.com/read/28901006/reproductive-aspects-of-the-atlantic-angel-shark-squatina-dumeril-in-the-southern-caribbean-sea
#3
A Tagliafico, S Rangel, M K Broadhurst
The maturity and reproduction of the Atlantic angel shark Squatina dumeril were assessed using 77 females (29·2-110·4 cm total length; LT ) and 269 males (58·7-108·2 cm LT ) harvested by artisanal gillnetters off Venezuela. The biased sex ratio implied segregation or sex-specific gear selectivity. Based on the development of the reproductive tract, 50% LT at sexual maturity (LT50 , mean ± s.e.) for females and males were estimated at 86·14 ± 0·64 and 81·55 ± 0·12 cm, respectively...
September 12, 2017: Journal of Fish Biology
https://www.readbyqxmd.com/read/28878243/the-environmental-impacts-of-one-of-the-largest-tailing-dam-failures-worldwide
#4
Vanessa Hatje, Rodrigo M A Pedreira, Carlos Eduardo de Rezende, Carlos Augusto França Schettini, Gabriel Cotrim de Souza, Danieli Canaver Marin, Peter Christian Hackspacher
The impacts of the SAMARCO iron tailing spill along more than 650 km, between the dam and the plume of the Doce River in the Atlantic, were assessed by the determination of toxic metals. The tailing spill caused a substantial increase in suspended sediment loads (up to 33,000 mg L(-1)), in addition to large depositions of waste along the Doce basin. The highest estimated transport of dissolved metals was observed for Fe (58.8 μg s(-1)), Ba (37.9 μg s(-1)) and Al (25.0 μg s(-1)). Sediments reached the highest enrichment factors (EFs) for Hg (4,234), Co (133), Fe (43), and Ni (16), whereas As (55), Ba (64), Cr (16), Cu (17), Mn (41), Pb (38) and Zn (82) highest EFs were observed for suspended particulate matter (SPM)...
September 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28841170/contaminations-sources-and-health-risks-of-trace-metal-loid-s-in-street-dust-of-a-small-city-impacted-by-artisanal-zn-smelting-activities
#5
Tingting Wu, Xiangyang Bi, Zhonggen Li, Guangyi Sun, Xinbin Feng, Lihai Shang, Hua Zhang, Tianrong He, Ji Chen
To investigate the impact of artisanal zinc smelting activities (AZSA) on the distribution and enrichment of trace metal(loid)s in street dust of a small city in Guizhou province, SW China, street dust samples were collected and analyzed for 10 trace metal(loid)s (Cr, Co, Ni, Cu, Zn, As, Cd, Sb, Pb, and Hg). Meanwhile, the health risks of local resident exposed to street dust were assessed. The result showed that the average concentrations of 10 elements were Zn (1039 mg kg(-1)), Pb (423 mg kg(-1)), Cr (119 mg kg(-1)), Cu (99 mg kg(-1)), As (55 mg kg(-1)), Ni (39 mg kg(-1)), Co (18 mg kg(-1)), Sb (7...
August 25, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28832832/reproductive-cycle-of-mytella-guyanensis-lamarck-1819-in-a-marine-reserve-resex-bay-of-iguape-bahia-brazil
#6
V M A Camilo, J da C Souza, E de J Conceição, J R Luz, G Boehs, S Campiolo
Mytella guyanensis, consumed and commercialized in coastal regions of Brazil, is one of several bivalve species of socioeconomic interest for coastal communities. Besides serving as a source of income and subsistence for these communities, it also contributes to their food security as it is a source of proteins and micronutrients. Thus, the reproductive cycle of this species was studied aiming to contribute to food security and its preservation. Samples were collected monthly, between March 2014 and March 2015, in a natural stock (12°38'50"S; 38°51'43"W) in a Marine Reserve (RESEX Bay of Iguape) (community Engenho da Ponte), Bahia, Brazil...
August 17, 2017: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/28831975/detailed-fatty-acid-profile-of-milk-cheese-ricotta-and-by-products-from-cows-grazing-summer-highland-pastures
#7
Matteo Bergamaschi, Giovanni Bittante
In this research two-dimensional GC was used to analyse, for the first time, the detailed fatty acid (FA) profiles of 11 dairy matrices: raw milk (evening whole, evening partially skimmed, morning whole, and vat milk), cream, fresh cheese, whey, ricotta, scotta, 6- and 12-month-ripened cheeses, obtained across artisanal cheese- and ricotta-making trials carried out during the summer period while cows were on highland pastures. Samples were collected during 7 cheese- and ricotta-making procedures carried out at 2-week intervals from bulk milk to study possible differences in the transfer and modification of FA...
August 2017: Journal of Dairy Research
https://www.readbyqxmd.com/read/28820901/using-local-ecological-knowledge-to-monitor-threatened-mekong-megafauna-in-lao-pdr
#8
Thomas N E Gray, Amphone Phommachak, Kongseng Vannachomchan, Francois Guegan
Pressures on freshwater biodiversity in Southeast Asia are accelerating yet the status and conservation needs of many of the region's threatened fish species are unclear. This impacts the ability to implement conservation activities and to understand the effects of infrastructure developments and other hydrological changes. We used Local Ecological Knowledge from fishing communities on the Mekong River in the Siphandone waterscape, Lao PDR to estimate mean and mode last capture dates of eight rare or culturally significant fish species in order to provide conservation monitoring baselines...
2017: PloS One
https://www.readbyqxmd.com/read/28806689/fungal-diversity-of-tomme-d-orchies-cheese-during-the-ripening-process-as-revealed-by-a-metagenomic-study
#9
Alexandre Ceugniez, Bernard Taminiau, Françoise Coucheney, Philippe Jacques, Véronique Delcenserie, Georges Daube, Djamel Drider
Tomme d'Orchies is an artisanal pressed and uncooked cheese produced and marketed in the north of France. This study aimed at showing the fungal microbiota evolution of this cheese using a metagenetic based Illumina technology targeting the ITS2 domain of 5.8S fungal rDNAs. To this end, samples were taken from the rind and the core of different cheeses, after 0, 1, 3, 7, 14 and 21days of ripening. The data underpinned the prevalence of Yarrowia lipolytica and Galactomyces geotrichum for both microbiotas. Unusual species including Clavispora lusitaniae, Kazachstania unispora and Cladosporium cladosporioides were also detected, but their origins remain to be ascertained...
July 25, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28800820/bacterial-diversity-of-the-colombian-fermented-milk-suero-coste%C3%A3-o-assessed-by-culturing-and-high-throughput-sequencing-and-dgge-analysis-of-16s-rrna-gene-amplicons
#10
Karina Edith Motato, Christian Milani, Marco Ventura, Francia Elena Valencia, Patricia Ruas-Madiedo, Susana Delgado
"Suero Costeño" (SC) is a traditional soured cream elaborated from raw milk in the Northern-Caribbean coast of Colombia. The natural microbiota that characterizes this popular Colombian fermented milk is unknown, although several culturing studies have previously been attempted. In this work, the microbiota associated with SC from three manufacturers in two regions, "Planeta Rica" (Córdoba) and "Caucasia" (Antioquia), was analysed by means of culturing methods in combination with high-throughput sequencing and DGGE analysis of 16S rRNA gene amplicons...
December 2017: Food Microbiology
https://www.readbyqxmd.com/read/28789560/milk-fermented-by-lactobacillus-species-from-brazilian-artisanal-cheese-protect-germ-free-mice-against-salmonella-typhimurium-infection
#11
L B Acurcio, S H C Sandes, R W Bastos, F M Sant'anna, S H S P Pedroso, D C Reis, Á C Nunes, G D Cassali, M R Souza, J R Nicoli
Ingestion of milks fermented by Lactobacillus strains showing probiotic properties is an important tool to maintain gastrointestinal health. In this study, Lactobacillus rhamnosus D1 and Lactobacillus plantarum B7, isolated from Brazilian artisanal cheese, were used as starters for the functional fermented milks to assess their probiotic properties in a gnotobiotic animal model. Male germ-free Swiss mice received a single oral dose of milk fermented by each sample, and were challenged with Salmonella Typhimurium five days afterwards...
August 24, 2017: Beneficial Microbes
https://www.readbyqxmd.com/read/28777905/decompression-sickness-among-diving-fishermen-in-mexico-observational-retrospective-analysis-of-dcs-in-three-sea-cucumber-fishing-seasons
#12
Oswaldo Huchim-Lara, Walter Chin, Silvia Salas, Normando Rivera-Canul, Salvador Cordero-Romero, Juan Tec, Ellie Joo, Nina Mendez-Dominguez
The probabilities of decompression sickness (DCS) among diving fishermen are higher than in any other group of divers. Diving behavior of artisanal fishermen has been directed mainly to target high-value species. The aim of this study was to learn about the occurrence of DCS derived from sea cucumber harvesting in the Yucatán Peninsula, Mexico. We conducted a retrospective chart review of diving fishermen treated at a multiplace hyperbaric chamber in Tizimín, Mexico. In total, 233 recompression therapies were rendered to 166 diving fishermen from 2014 to 2016...
March 2017: Undersea & Hyperbaric Medicine: Journal of the Undersea and Hyperbaric Medical Society, Inc
https://www.readbyqxmd.com/read/28776707/reproductive-biology-of-the-tarpon-snook-centropomus-pectinatus-perciformes-centropomidae-in-estuarine-waters-in-the-south-western-atlantic
#13
M O Freitas, V Abilhoa
The reproductive biology of Centropomus pectinatus is described from an artisanal fish landings collaborative monitoring programme between May 2012 and April 2013 in estuarine waters in north-eastern Brazil. The total length (LT ) at which 50% are mature was 24 cm, corresponding to 37·7% of the maximum recorded LT . Gonado-somatic indices were variable, but highest values were in June and August 2012. Length-frequency distributions showed male dominance in smaller length classes (15-30 cm) and females in larger length classes (>30 cm)...
August 2017: Journal of Fish Biology
https://www.readbyqxmd.com/read/28775190/prevalence-of-hiv-at-the-kokoyo-informal-gold-mining-site-what-lies-behind-the-glitter-of-gold-with-regard-to-hiv-epidemics-in-mali-a-community-based-approach-the-anrs-12339-sanu-gundo-cross-sectional-survey
#14
Luis Sagaon-Teyssier, Hubert Balique, Fodié Diallo, Nikos Kalampalikis, Marion Mora, Michel Bourrelly, Marie Suzan-Monti, Bruno Spire, Bintou Dembélé Keita
OBJECTIVES: The aim of this article was to estimate HIV prevalence and the factors associated with HIV seropositivity in the population living and working at the informal artisanal small-scale gold mining (IASGM) site of Kokoyo in Mali, using data from the Sanu Gundo survey. Our main hypothesis was that HIV prevalence is higher in the context of IASGM than in the country as a whole. DESIGN: The ANRS-12339 Sanu Gundo was a cross-sectional survey conducted in December 2015...
August 3, 2017: BMJ Open
https://www.readbyqxmd.com/read/28771162/modelling-spatio-temporal-heterogeneities-in-groundwater-quality-in-ghana-a-multivariate-chemometric-approach
#15
Frederick Ato Armah, Arnold Paintsil, David Oscar Yawson, Michael Osei Adu, Justice O Odoi
Chemometric techniques were applied to evaluate the spatial and temporal heterogeneities in groundwater quality data for approximately 740 goldmining and agriculture-intensive locations in Ghana. The strongest linear and monotonic relationships occurred between Mn and Fe. Sixty-nine per cent of total variance in the dataset was explained by four variance factors: physicochemical properties, bacteriological quality, natural geologic attributes and anthropogenic factors (artisanal goldmining). There was evidence of significant differences in means of all trace metals and physicochemical parameters (p < 0...
August 2017: Journal of Water and Health
https://www.readbyqxmd.com/read/28766846/managing-conflicts-between-economic-activities-and-threatened-migratory-marine-species-toward-creating-a-multiobjective-blue-economy
#16
Linda R Harris, Ronel Nel, Herman Oosthuizen, Mike Meyer, Deon Kotze, Darrell Anders, Steven McCue, Santosh Bachoo
Harnessing the economic potential of the oceans is key to combating poverty, enhancing food security, and strengthening economies. But the concomitant risk of intensified resource extraction to migratory species is worrying given that these species contribute to important ecological processes, often underpin alternatively livelihoods, and many are already threatened. We thus sought to quantify the potential conflict between key economic activities (five fisheries and hydrocarbon exploitation) and sea turtle migration corridors in a region with rapid economic development: Southern and East Africa...
August 2, 2017: Conservation Biology: the Journal of the Society for Conservation Biology
https://www.readbyqxmd.com/read/28763123/laying-waste-to-mercury-inexpensive-sorbents-made-from-sulfur-and-recycled-cooking-oils
#17
Max Worthington, Renata Kucera, Ines Albuquerque, Christopher Gibson, Alexander Sibley, Ashley Slattery, Jonathan Campbell, Salah Alboaiji, Katherine Muller, Jason Young, Nick Adamson, Jason Gascooke, Deshetti Jampaiah, Ylias Sabri, Suresh Bhargava, Samuel Ippolito, David Lewis, Jamie Quinton, Amanda Ellis, Alexander Johs, Gonçalo Bernardes, Justin M Chalker
Mercury pollution threatens the environment and human health across the globe. This neurotoxic substance is encountered in artisanal gold mining, coal combustion, oil and gas refining, waste incineration, chloralkalai plant operation, metallurgy, and areas of agriculture in which mercury-rich fungicides are used. Thousands of tonnes of mercury are emitted annually through these activities. With the Minamata Convention on Mercury entering force this year, increasing regulation of mercury pollution is imminent...
August 1, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28762193/probiotic-features-of-lactic-acid-bacteria-isolated-from-a-diverse-pool-of-traditional-greek-dairy-products-regarding-specific-strain-host-interactions
#18
Georgia Zoumpopoulou, Alexandra Tzouvanou, Eleni Mavrogonatou, Voula Alexandraki, Marina Georgalaki, Rania Anastasiou, Marina Papadelli, Eugenia Manolopoulou, Maria Kazou, Dimitris Kletsas, Konstantinos Papadimitriou, Effie Tsakalidou
The increased consumers' interest on the positive role of food in wellbeing and health underscores the need to determine new probiotic microorganisms. Triggered by the fact that artisanal food products can be a valuable source of novel probiotic strains, 106 lactic acid bacteria, all isolated from traditional Greek dairy products, namely Feta, Kasseri, Xynotyri, Graviera, Formaela, Galotyri, and Kefalotyri cheeses as well as yogurt and milk, were studied for probiotic properties. Based on their survival at pH 2...
July 31, 2017: Probiotics and Antimicrobial Proteins
https://www.readbyqxmd.com/read/28749420/physicochemical-and-sensorial-characterization-of-honey-spirits
#19
Ofélia Anjos, David Frazão, Ilda Caldeira
Distilled spirits are usually made from fermented sugar-based materials, such as wines or fermented fruits, but other products can be used, namely berries or honey. In this work, an evaluation of honey spirits is done based on its physicochemical and sensory characteristics. Fourteen honey spirit samples of different brands of honey spirit were purchased at the market and from artisan Portuguese producers. Several analytical determinations, namely alcoholic strength, dry matter, density, total acidity, chromatic characteristics, methanol, acetaldehyde, ethyl acetate and higher alcohols were done to characterize all samples...
July 27, 2017: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28745838/first-record-of-epizootic-ulcerative-syndrome-from-the-upper-congo-catchment-an-outbreak-in-the-bangweulu-swamps-zambia
#20
C F Huchzermeyer, K D A Huchzermeyer, K W Christison, B M Macey, P A Colly, B M Hang'ombe, M M Songe
We report on the first outbreak of epizootic ulcerative syndrome (EUS) amongst wild fish populations in the Bangweulu swamps, an inland delta, in the north of Zambia during 2014. The area supports a large and diverse fish fauna related to, but distinct from, that of the Zambezi River system where EUS outbreaks have occurred since 2006. A sizeable artisanal fishery, based on extensive fish weirs, is sustained by the annual flooding of the swamps, and observations of the disease outbreak by fishermen were recorded...
July 26, 2017: Journal of Fish Diseases
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