63,393 results match your criteria Aquatic toxicology Amsterdam Netherlands[Journal]


Chlorinated paraffins (CPs) in salmon sold in southern Germany: Concentrations, homologue patterns and relation to other persistent organic pollutants.

Chemosphere 2019 Apr 8;227:630-637. Epub 2019 Apr 8.

University of Hohenheim, Institute of Food Chemistry (170b), 70599, Stuttgart, Germany.

Chlorinated paraffins (CPs) are complex mixtures of persistent contaminants present throughout the aquatic food web. In this study 122 farmed and 11 wild salmon samples were collected over the course of four years (2014-2017). The ratio of short-chain CP and medium-chain CP and the corresponding homologue patterns were determined by means of gas chromatography (GC) with high resolution, accurate mass Orbitrap mass spectrometry (MS) technology. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.04.016DOI Listing

Temporal trends and sediment-water partitioning of per- and polyfluoroalkyl substances (PFAS) in lake sediment.

Chemosphere 2019 Apr 11;227:624-629. Epub 2019 Apr 11.

Division of Water Resources Engineering, LTH Lund University, Lund, Sweden; Center for Middle Eastern Studies (CMES), Lund University, Lund, Sweden.

The use of per- and polyfluoroalkyl substances (PFAS) containing aqueous film forming foams (AFFF) at fire training facilities can have an adverse impact on the surrounding environment. The aim of the present study was to study the distribution and temporal trend of 26 PFAS in water and sediment cores for a lake and a pond affected by AFFF release from a fire training facility in Luleå, northern Sweden. In the aqueous phase, maximum ΣPFAS concentration was 1. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.04.074DOI Listing

Carbonic anhydrase activity as a potential biomarker for acute exposure to copper in corals.

Chemosphere 2019 Apr 15;227:598-605. Epub 2019 Apr 15.

Instituto Coral Vivo, Rua dos Coqueiros, Parque Yaya, Santa Cruz Cabrália, BA, 45807-000, Brazil; Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Av. Itália, Km 8, Rio Grande, RS, 96203-900, Brazil. Electronic address:

Coral reefs are subjected to climate change and are severely impacted by human activities, with copper (Cu) being a relevant physiological stressor for corals at local scale. The ecological relevance of parameters measured at biochemical or cellular level is now considered an extremely important feature in environmental studies, and can be used as early warning signs of environmental degradation. In this context, the effects of acute exposure (96 h) to Cu were assessed on the maximum photochemical efficiency of zooxanthellae (Fv/Fm) and on the activity of key enzymes [carbonic anhydrase (CA) and Ca-ATPase] involved in coral physiology using the scleractinian coral Mussismilia harttii as a biological model. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S00456535193074
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http://dx.doi.org/10.1016/j.chemosphere.2019.04.089DOI Listing
April 2019
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Medium optimization and characterization of cell culture system from Penaeus vannamei for adaptation of white spot syndrome virus (WSSV).

J Virol Methods 2019 Apr 19. Epub 2019 Apr 19.

Aquatic animal health and environment division, ICAR-Central Institute of Brackishwater Aquaculture, #75, Santhome High Road, Raja Annamalaipuram; Chennai, Tamil Nadu, 600028, India. Electronic address:

The lack of shrimp cell lines and difficulty in establishing shrimp cell culture systems, with an appropriate medium is a major concern in the aquaculture sector. The present study attempts to address this issue by developing an in vitro cell culture system from various tissues (hemocytes, heart, lymphoid tissue, hepatopancreas, gill, eye stalk, and muscle) of Penaeus vannamei (P.vannamei) using commercially available L-15 medium. Read More

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http://dx.doi.org/10.1016/j.jviromet.2019.04.016DOI Listing

High Homogenization Speeds for Preparing Unstable Myofibrillar Protein-Olive Oil Emulsions.

J Food Sci 2019 Apr 22. Epub 2019 Apr 22.

College of Food Science and Technology, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Bohai Univ., Jinzhou, 121013, China.

Natural protein-based oil-in-water emulsions have recently attracted a lot of attention because of their potential as a synthetic emulsifier replacer. It is, however, unclear how the emulsification process and protein concentration may affect the stability of such emulsions. Therefore, this study investigated the effects of homogenization speeds (4,000, 8,000, 12,000, and 16,000 rpm/min) and myofibrillar protein (MP) concentrations (10, 20, 30, 40, and 50 mg/mL) on the stability of MP-olive oil emulsion. Read More

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http://dx.doi.org/10.1111/1750-3841.14502DOI Listing

Using eDNA to biomonitor the fish community in a tropical oligotrophic lake.

PLoS One 2019 22;14(4):e0215505. Epub 2019 Apr 22.

Centre for Biodiversity Genomics, Biodiversity Institute of Ontario, University of Guelph, Guelph, ON, Canada.

Environmental DNA (eDNA) is an effective approach for detecting vertebrates and plants, especially in aquatic ecosystems, but prior studies have largely examined eDNA in cool temperate settings. By contrast, this study employs eDNA to survey the fish fauna in tropical Lake Bacalar (Mexico) with the additional goal of assessing the possible presence of invasive fishes, such as Amazon sailfin catfish and tilapia. Sediment and water samples were collected from eight stations in Lake Bacalar on three occasions over a 4-month interval. Read More

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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0215505PLOS

Environmental DNA Shaping A New Era of Ecotoxicological Research.

Authors:
Xiaowei Zhang

Environ Sci Technol 2019 Apr 22. Epub 2019 Apr 22.

Aquatic ecosystems, such as rivers and lakes, are exposed to multiple stressors from anthropogenic activity and changes in climate, which have resulted in a general decrease in biodiversity, alteration of community structures, and can ultimately result in reduction of resources provided by natural ecosystems. Adverse outcomes caused by pollutants to ecosystems are determined not only by toxic properties, but also ecological contexts of ecosystems, including indigenous biodiversity and community composition. It is therefore important to identify key factors, such as diversity of species and traits that determine the vulnerability of structures and functions of ecosystems in response to toxic substances. Read More

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http://dx.doi.org/10.1021/acs.est.8b06631DOI Listing

WHEN Fluorescence is not a particle: The tissue translocation of microplastics in Daphnia magna seems an artIfact.

Environ Toxicol Chem 2019 Apr 22. Epub 2019 Apr 22.

Department of Biology, Norwegian University of Science and Technology, Høgskoleringen 1, Trondheim, Norway.

Previous research reported the translocation of nano- and microplastics from the gastrointestinal tract to tissues in Daphnia magna, most prominently of fluorescent polystyrene (PS) beads to lipid droplets. For particles > 300 nm, such transfer is biologically implausible as the peritrophic membrane retains these in the daphnid gut. Thus, we aim at replicating the key study by Rosenkranz et al. Read More

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http://dx.doi.org/10.1002/etc.4436DOI Listing

Long-term Video Tracking of Cohoused Aquatic Animals: A Case Study of the Daily Locomotor Activity of the Norway Lobster (Nephrops norvegicus).

J Vis Exp 2019 Apr 8(146). Epub 2019 Apr 8.

Institute of Marine Sciences, Spanish National Research Council (CSIC).

We present a protocol related to a video-tracking technique based on the background subtraction and image thresholding that makes it possible to individually track cohoused animals. We tested the tracking routine with four cohoused Norway lobsters (Nephrops norvegicus) under light-darkness conditions for 5 days. The lobsters had been individually tagged. Read More

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http://dx.doi.org/10.3791/58515DOI Listing

Modeling the sensitivity of aquatic macroinvertebrates to chemicals using traits.

Environ Sci Technol 2019 Apr 22. Epub 2019 Apr 22.

In this study, a trait-based macroinvertebrate sensitivity modeling tool is presented that provides two main outcomes: (1) it constructs a macroinvertebrate sensitivity ranking and, subsequently, a predictive trait model for each one of a diverse set of pre-defined Modes of Action (MOAs) and (2) it reveals data gaps and restrictions, helping with the direction of future research. Besides revealing taxonomic patterns of species sensitivity, we find that there was not one genus, family or class which was most sensitive to all MOAs, and that common test taxa were often not the most sensitive at all. Traits like life cycle duration and feeding mode were identified as important in explaining species sensitivity. Read More

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http://dx.doi.org/10.1021/acs.est.9b00893DOI Listing

Chronic amoxicillin exposure affects : assessment of hematological, ionic compounds, biochemical, and enzymological activities.

Heliyon 2019 Apr 9;5(4):e01434. Epub 2019 Apr 9.

Institute of Environment and Ecology, Shandong Normal University, Jinan, PR China.

were exposed to amoxicillin at a concentration of 1 mg/L (Treatment -I) and 0.5 mg/L (Treatment-II) for a period of 35 days. Numerous alterations were found in amoxicillin treatment groups when compared to the control group. Read More

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http://dx.doi.org/10.1016/j.heliyon.2019.e01434DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6458497PMC

Traditional plant functional groups explain variation in economic but not size-related traits across the tundra biome.

Glob Ecol Biogeogr 2019 Jan 16;28(2):78-95. Epub 2018 Nov 16.

Environmental Biology, Department Institute of Environmental Sciences, CML, Leiden University Leiden The Netherlands.

Aim: Plant functional groups are widely used in community ecology and earth system modelling to describe trait variation within and across plant communities. However, this approach rests on the assumption that functional groups explain a large proportion of trait variation among species. We test whether four commonly used plant functional groups represent variation in six ecologically important plant traits. Read More

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http://dx.doi.org/10.1111/geb.12783DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6472633PMC
January 2019

Allogenic chondrocyte/osteoblast-loaded β-tricalcium phosphate bioceramic scaffolds for articular cartilage defect treatment.

Artif Cells Nanomed Biotechnol 2019 Dec;47(1):1570-1576

c Integrated Scientific Research Base on Comprehensive Utilization Technology for By-Products of Aquatic Product Processing , Ministry of Agriculture and Rural Affairs of the People's Republic of China , Shanghai , People's Republic of China.

The medical community has expressed significant interest in the treatment of cartilage defect. Successful repair of articular cartilage defects remains a challenge in clinics. Due to the huge advantages of 3D micro/nanomaterials, 3D artificial micro/nano scaffolds have been widely developed and explored in the tissue repair of articular joints. Read More

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http://dx.doi.org/10.1080/21691401.2019.1604534DOI Listing
December 2019

Physico-chemical and functional properties of silver carp myosin glycated with konjac oligo-glucomannan: Effects of deacetylation.

Food Chem 2019 Sep 8;291:223-230. Epub 2019 Apr 8.

Department of Food Science and Engineering, Ocean College, Zhejiang University of Technology, Hangzhou 310014, PR China; National R & D Branch Center for Pelagic Aquatic Products Processing (Hangzhou), Hangzhou 310014, PR China. Electronic address:

The glycation of silver carp myosin (Ms) with konjac oligo-glucomannan (KOG) of different degrees of deacetylation (DD) was investigated. As DD increased, the physico-chemical and functional properties of glycoconjugates changed. The available lysine content decreased, while grafting degree and total sulfhydryl group increased, andmeanwhile, the isoelectric point (pI) reduced. Read More

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http://dx.doi.org/10.1016/j.foodchem.2019.03.153DOI Listing
September 2019

Effect of vacuum impregnation of red sea bream (Pagrosomus major) with herring AFP combined with CS@FeO nanoparticles during freeze-thaw cycles.

Food Chem 2019 Sep 4;291:139-148. Epub 2019 Apr 4.

Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China. Electronic address:

This study examined the effect of herring antifreeze protein (hAFP) combined with chitosan magnetic nanoparticles (CS@FeO), applied through vacuum impregnation, on protein conformation and moisture state of red sea bream during freeze-thaw cycles. DSC and dynamic rheology were used to analyze physicochemical changes. Raman, intrinsic fluorescence and second derivative UV spectrometry were used to explore the structural changes of myofibrillar proteins. Read More

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http://dx.doi.org/10.1016/j.foodchem.2019.04.017DOI Listing
September 2019

Identification and sequencing of the gene encoding DNA methyltransferase 3 (DNMT3) from sea cucumber, Apostichopus japonicus.

Mol Biol Rep 2019 Apr 20. Epub 2019 Apr 20.

School of Biological Sciences and Technology, Chonnam National University, Gwangju, 61186, Republic of Korea.

The sea cucumber Apostichopus japonicus is well known as a traditional tonic food and as a commercially important cultured aquatic species. This species produces saponins, and has a high potential to cope with environmental stress, such as aestivation, organ regeneration, and wound healing. Recently, several studies have shown that cellular reprogramming and the physiological responses of the sea cucumber to environmental changes, including aestivation, are potentially mediated by epigenetic DNA methylation. Read More

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http://dx.doi.org/10.1007/s11033-019-04821-8DOI Listing

Occurrence, fate and health risk assessment of 10 common antibiotics in two drinking water plants with different treatment processes.

Sci Total Environ 2019 Apr 11;674:316-326. Epub 2019 Apr 11.

Joint Research Centre for Protective Infrastructure Technology and Environmental Green Bioprocess, Department of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin 300384, China; Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin Chengjian University, Jinjing Road 26, Tianjin 300384, China; School of Civil and Environmental Engineering, University of Technology Sydney, NSW 2007, Australia.

The occurrence of antibiotics in drinking water has become a serious problem worldwide as they are a potential and real threat to human health. In this study, the variability of 10 typical antibiotics in two drinking water plants was investigated in two seasons (n = 12). The total concentrations of target antibiotics in raw water were significantly higher in winter than in summer, which may be attributed to the more frequent occurrence of colds and respiratory diseases as well as less rainfall in winter. Read More

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http://dx.doi.org/10.1016/j.scitotenv.2019.04.093DOI Listing
April 2019
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Lead toxicity in seawater teleosts: A morphofunctional and ultrastructural study on the gills of the Ornate wrasse (Thalassoma pavo L.).

Aquat Toxicol 2019 Apr 12;211:193-201. Epub 2019 Apr 12.

Department of Biology, Ecology and Earth Science, University of Calabria, Via P. Bucci 4/B, Rende, Cosenza, 87036, Italy. Electronic address:

Lead is one of the most alarming toxic pollutants for the environment due to its acute toxicity and high bioaccumulation tendency. Despite legislative efforts, world lead production has more than doubled since the early 1970s to 2016. Due to extensive exploitation and human activity, the coastal and estuarine regions belong to marine environments that are mostly and more rapidly deteriorated by pollutants including lead. Read More

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http://dx.doi.org/10.1016/j.aquatox.2019.04.009DOI Listing

Effect of microplastics exposure on the photosynthesis system of freshwater algae.

J Hazard Mater 2019 Apr 12;374:219-227. Epub 2019 Apr 12.

Department of Environmental Science and Engineering, College of Chemical Engineering, Huaqiao University, Xiamen, Fujian, 361021, China; Institute of Environmental and Resources Technology, Huaqiao University, Xiamen, 361021, China.

Microplastics are widely distributed in freshwater environments. At present, most of the studies on the toxicity of microplastics are concentrated on aquatic feeding animals, but relatively few have addressed freshwater algae. This study investigated the effect of microplastics (polypropylene (PP) and polyvinyl chloride (PVC)) exposure on the photosynthetic system of freshwater algae over the logarithmic growth period. Read More

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http://dx.doi.org/10.1016/j.jhazmat.2019.04.039DOI Listing

Gene expression, genotoxicity, and physiological responses in an Amazonian fish, Colossoma macropomum (CUVIER 1818), exposed to Roundup® and subsequent acute hypoxia.

Comp Biochem Physiol C Toxicol Pharmacol 2019 Apr 17. Epub 2019 Apr 17.

Laboratory of Ecophysiology and Molecular Evolution (LEEM), Brazilian National Institute of Amazonian Research (INPA), 69067-375, André Araújo Avenue, 2936, Petrópolis, Manaus, AM, Brazil.

Roundup® (RD) is a glyphosate-based herbicide used to control weeds in agriculture, and fishponds. In the Amazon, hypoxia is a natural phenomenon in flooded areas. Beyond the challenge of hypoxia, fish need to cope with the use of pesticides as RD that increases in the aquatic environment through the leaching of agricultural areas, and in aquaculture fish tanks. Read More

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http://dx.doi.org/10.1016/j.cbpc.2019.04.010DOI Listing
April 2019
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Protective effect of dietary vitamin E on immunological and biochemical induction through silver nanoparticles (AgNPs) inclusion in diet and silver salt (AgNO) exposure on Zebrafish (Danio rerio).

Comp Biochem Physiol C Toxicol Pharmacol 2019 Apr 17. Epub 2019 Apr 17.

Department of Animal and Aquatic Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand; Science and Technology Research Institute, Chiang Mai University, 239 Huay keaw Rd., Suthep, Muang, Chiang Mai 50200, Thailand. Electronic address:

The present study evaluated silver nanoparticle (AgNPs) toxicity using biomarkers of oxidative and metabolic stress, immunological impairment and cellular damage in zebrafish (Danio rerio), as well as the optimal dose of vitamin E neutralizing undesirable effects. Fish were fed for ten days and eight study groups were investigated: controls, AgNPs exposure alone (1.5 mg L) and combined with three different vitamin E doses (1. Read More

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http://dx.doi.org/10.1016/j.cbpc.2019.04.004DOI Listing

Mechanism of isoniazid-induced hepatotoxicity in zebrafish larvae: Activation of ROS-mediated ERS, apoptosis and the Nrf2 pathway.

Chemosphere 2019 Apr 6;227:541-550. Epub 2019 Apr 6.

Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Key Laboratory for Drug Screening Technology of Shandong Academy of Sciences, Key Laboratory for Biosensor of Shandong Province, Jinan, Shandong Province, PR China. Electronic address:

Isoniazid (INH) is a first-line anti-tuberculosis drug. INH has been detected in surface waters which may create a risk to aquatic organisms. In this study, the hepatotoxicity of INH was elucidated using zebrafish. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S00456535193067
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http://dx.doi.org/10.1016/j.chemosphere.2019.04.026DOI Listing
April 2019
5 Reads

Specific metabolism related to sulfonamide tolerance and uptake in wetland plants.

Chemosphere 2019 Apr 10;227:496-504. Epub 2019 Apr 10.

Research Center of Hydrobiology, Jinan University, Guangzhou, 510632, PR China; Research Centre of Tropic and Subtropic Aquatic Ecological Engineering, Ministry of Education, Guangzhou, 510632, PR China.

Wetland plants are proven to perform well in water treatment. However, the phytoremediation capability of wetland plants for antibiotics, especially the uptake and metabolism involved in vivo, is poorly understood. In this study, we investigated the removal, uptake, and specific metabolism by Canna indica and Iris pseudacorus of five sulfonamides (SAs) using hydroponic experiments for seven days. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.04.069DOI Listing

Effects of dietary hydrolyzed yeast (Rhodotorula mucilaginosa) on growth performance, immune response, antioxidant capacity and histomorphology of juvenile Nile tilapia (Oreochromis niloticus).

Fish Shellfish Immunol 2019 Apr 17. Epub 2019 Apr 17.

State Key Laboratory of Biocontrol, Institute of Aquatic Economic Animal and Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Science, Sun Yat-sen University, Guangzhou, 510275, PR China. Electronic address:

An 8 weeks feeding experiment was conducted to evaluate the effects of dietary supplementation with hydrolyzed yeast (HY) (Rhodotorula mucilaginosa) on growth performance, hematological parameters, immune response and antioxidant ability of juvenile Nile tilapia. Five isonitrogenous and isolipidic diets (32% protein and 4% lipid) with different levels (0%, 0.125%, 0. Read More

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http://dx.doi.org/10.1016/j.fsi.2019.03.068DOI Listing

Phytoplankton growth and stoichiometric responses to warming, nutrient addition and grazing depend on lake productivity and cell size.

Glob Chang Biol 2019 Apr 20. Epub 2019 Apr 20.

Department of Aquatic Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Droevendaalsesteeg 10, 6708 PB, Wageningen, Netherlands.

Global change involves shifts in multiple environmental factors that act in concert to shape ecological systems in ways that depend on local biotic and abiotic conditions. Little is known about the effects of combined global change stressors on phytoplankton communities, and particularly how these are mediated by distinct community properties such as productivity, grazing pressure and size distribution. Here, we tested for the effects of warming and eutrophication on phytoplankton net growth rate and C:N:P stoichiometry in two phytoplankton cell size fractions (<30μm and >30μm) in the presence and absence of grazing in microcosm experiments. Read More

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http://dx.doi.org/10.1111/gcb.14660DOI Listing

Do bone geometric properties of the proximal femoral diaphysis reflect loading history, muscle properties, or body dimensions?

Am J Hum Biol 2019 Apr 19:e23246. Epub 2019 Apr 19.

The UKK Institute for Health Promotion Research, Tampere, Finland.

Objectives: The aim of this study was to investigate activity-induced effects from bone geometric properties of the proximal femur in athletic vs nonathletic healthy females by statistically controlling for variation in body size, lower limb isometric, and dynamic muscle strength, and cross-sectional area of Musculus gluteus maximus.

Methods: The material consists of hip and proximal thigh magnetic resonance images of Finnish female athletes (N = 91) engaged in either high jump, triple jump, soccer, squash, powerlifting, endurance running or swimming, and a group of physically active nonathletic women (N = 20). Cross-sectional bone geometric properties were calculated for the lesser trochanter, sub-trochanter, and mid-shaft of the femur regions. Read More

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http://dx.doi.org/10.1002/ajhb.23246DOI Listing

Development of transient mutagenic activity following the chlorination of the sunscreen UV filter dioxybenzone (benzophenone-8) in bromide-rich water.

Int J Hyg Environ Health 2019 Apr 16. Epub 2019 Apr 16.

Aix-Marseille Université, CNRS, LCE UMR 7376, 13331, Marseille, France.

The mutagenicity of four organic UV filters namely oxybenzone (benzophenone-3), dioxybenzone (benzophenone-8), avobenzone, and octyl methoxycinnamate, in chlorinated bromide-rich water (artificial seawater) was investigated. Mutagenicity was evaluated using Ames test in Salmonella typhimurium TA98 without S9 mix. Chemical analysis using high-resolution mass spectrometry was carried out to elucidate the mutagenic transformation products. Read More

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http://dx.doi.org/10.1016/j.ijheh.2019.04.003DOI Listing

Comparative study of Cu uptake and early transcriptome responses in the green microalga Chlamydomonas reinhardtii and the macrophyte Elodea nuttallii.

Environ Pollut 2019 Apr 10;250:331-337. Epub 2019 Apr 10.

Department F.-A. Forel for Environmental and Aquatic Sciences, Earth and Environmental Sciences, Faculty of Sciences, University of Geneva, 66, Boulevard Carl-Vogt, CH-1211, Geneva 4, Switzerland. Electronic address:

Microalgae are widely used as representative primary producers in ecotoxicology, while macrophytes are much less studied. Here we compared the bioavailability and cellular toxicity pathways of 2 h-exposure to 10 mol L Cu in the macrophyte Elodea nuttallii and the green microalga Chlamydomonas reinhardtii. Uptake rate was similar but faster in the algae than in the macrophyte, while RNA-Sequencing revealed a similar number of regulated genes. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S02697491183557
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http://dx.doi.org/10.1016/j.envpol.2019.04.032DOI Listing
April 2019
2 Reads

Stability and toxicity studies for duloxetine and econazole on Spirodela polyrhiza using chiral capillary electrophoresis.

J Hazard Mater 2019 Apr 5;374:203-210. Epub 2019 Apr 5.

Departamento de Química Analítica, Química Física e Ingeniería Química, Universidad de Alcalá, Ctra. Madrid-Barcelona Km. 33.600, 28871, Alcalá de Henares (Madrid), Spain; Instituto de Investigación Química Andrés M. del Río, Universidad de Alcalá, Ctra, Madrid-Barcelona Km. 33.600, 28871, Alcalá de Henares (Madrid), Spain. Electronic address:

Stability and toxicity studies for duloxetine and econazole were achieved using individual solutions and their mixtures. Stability of drugs racemates and enantiomers was investigated under abiotic and biotic conditions. Toxicity was evaluated for the first time on Spirodela polyrhiza. Read More

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http://dx.doi.org/10.1016/j.jhazmat.2019.04.027DOI Listing
April 2019
1 Read

Bioaccumulation and human health implications of essential and toxic metals in freshwater products of Northeast China.

Sci Total Environ 2019 Apr 9;673:768-776. Epub 2019 Apr 9.

CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China. Electronic address:

Bioaccumulation and human health risks of essential and toxic metals in ten species of freshwater products from Northeast China were investigated in this study. The concentrations (mg/kg wet weight) of target metals in aquatic products were: Fe (4.6-165. Read More

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http://dx.doi.org/10.1016/j.scitotenv.2019.04.099DOI Listing

Investigating the role of colloids on the distribution of bisphenol analogues in surface water from an ecological demonstration area, China.

Sci Total Environ 2019 Apr 10;673:699-707. Epub 2019 Apr 10.

Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China.

Owing to the widespread use of bisphenol analogues (BPs) as substitutes for bisphenol A (BPA), the presence of BPs in multiple environments is of increasing concern. However, there is a limited understanding of the effects of colloids on the distribution and risk assessment of BPs traditionally dissolved in surface water. In this study, seven BPs were investigated in both the truly dissolved (<5 kDa) and colloidal (5 kDa to 1 μm) phases with water, with mean concentrations in the range of 71. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S00489697193166
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http://dx.doi.org/10.1016/j.scitotenv.2019.04.142DOI Listing
April 2019
1 Read

Terrestrial organic matter increases zooplankton methylmercury accumulation in a brown-water boreal lake.

Sci Total Environ 2019 Mar 29;674:9-18. Epub 2019 Mar 29.

Department of Bioscience, University of Oslo, Blindernveien 31, 0371 Oslo, Norway. Electronic address:

Increases in terrestrial organic matter (tOM) transport from catchments to boreal lakes can affect methylmercury (MeHg) accumulation in aquatic biota both directly by increasing concentrations of aqueous MeHg, and indirectly through effects on MeHg bioavailability and on energy pathways in the lower food web. We carried out a detailed seasonal study of water chemistry, zooplankton diet, and MeHg accumulation in zooplankton in two lakes with contrasting tOM concentrations. Between-lake differences explained 51% of the variability in our water chemistry data, with no observed effect of season or sampling depth, contrary to our expectations. Read More

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http://dx.doi.org/10.1016/j.scitotenv.2019.03.446DOI Listing

How closely do mercury trends in fish and other aquatic wildlife track those in the atmosphere? - Implications for evaluating the effectiveness of the Minamata Convention.

Sci Total Environ 2019 Apr 9;674:58-70. Epub 2019 Apr 9.

Department of Marine Sciences, University of Connecticut, 1080 Shennecossett Road, Groton, CT 06340, USA.

The Minamata Convention to reduce anthropogenic mercury (Hg) emissions entered into force in 2017, and attention is now focused on how to best monitor its effectiveness at reducing Hg exposure to humans. A key question is how closely Hg concentrations in the human food chain, especially in fish and other aquatic wildlife, will track the changes in atmospheric Hg that are expected to occur following anthropogenic emission reductions. We investigated this question by evaluating several regional groups of case studies where Hg concentrations in aquatic biota have been monitored continuously or intermittently for several decades. Read More

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http://dx.doi.org/10.1016/j.scitotenv.2019.04.101DOI Listing

Ecotoxicological effects of lanthanum in Mytilus galloprovincialis: Biochemical and histopathological impacts.

Aquat Toxicol 2019 Mar 25;211:181-192. Epub 2019 Mar 25.

Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal. Electronic address:

Inappropriate processing and disposal of electronic waste contributes to the contamination of aquatic systems by various types of pollutants such as the rare-earth elements (REE) in which lanthanum (La) is included. Knowledge on the toxicity of these elements in marine organisms is still scarce when compared to other metals such as mercury (Hg) and arsenic (As). Therefore, this study aims to assess the toxicity of La on the mussel Mytilus galloprovincialis, considered a good bioindicator of aquatic pollution, through the analysis of metabolic, oxidative stress, neurotoxicity and histopathological markers. Read More

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http://dx.doi.org/10.1016/j.aquatox.2019.03.017DOI Listing
March 2019
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Larval amphibians rapidly bioaccumulate poly- and perfluoroalkyl substances.

Ecotoxicol Environ Saf 2019 Apr 16;178:137-145. Epub 2019 Apr 16.

Department of Forestry and Natural Resources, Purdue University, 715 West State Street, West Lafayette, IN, 47907, United States.

Poly- and perfluoroalkyl substances (PFAS) are ubiquitous contaminants that can bioaccumulate in aquatic taxa. Amphibians are particularly vulnerable to contaminants and sensitive to endocrine disruptors during their aquatic larval stage. However, few studies have explored PFAS uptake rates in amphibians, which is critical for designing ecotoxicology studies and assessing the potential for bioaccumulation. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S01476513193043
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http://dx.doi.org/10.1016/j.ecoenv.2019.04.022DOI Listing
April 2019
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Comparative transcriptome analyses reveal changes of gene expression in fresh and cryopreserved yellow catfish (Pelteobagrus fulvidraco) sperm and the effects of Cryoprotectant MeSO.

Int J Biol Macromol 2019 Apr 16. Epub 2019 Apr 16.

School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong, China. Electronic address:

This study, for the first time in fish, compared the transcriptome of fresh and frozen-thawed sperm, and would help to better understand the effect of cryopreservation on fish sperm and then better preserve the aquatic germplasm resources. Here, we employed high-throughput sequencing technology to obtain the transcriptome of yellow catfish from fresh sperm, cryopreserved sperm with and without cryoprotectant. When cryoprotectant (MeSO) was excluded, down-regulated genes were significantly enriched into calcium ion binding, cytoskeletal protein binding, microfilament motor activity and carnitine O-acyltransferase activity, which affected Ca regulation, cellular morphology, motility and metabolism. Read More

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http://dx.doi.org/10.1016/j.ijbiomac.2019.04.050DOI Listing
April 2019
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Phylogenomics of the longitarsal Colossendeidae: The evolutionary history of an Antarctic sea spider radiation.

Mol Phylogenet Evol 2019 Apr 16. Epub 2019 Apr 16.

Zoological Research Museum Alexander Koenig, Statistical Phylogenetics and Phylogenomics, Adenauerallee 160, D-53113 Bonn, Germany; Faculty of Mathematics and Natural Sciences, University of Bonn, D-53012 Bonn, Germany.

Sea spiders (Pycnogonida) constitute a group of marine benthic arthropods that has a particularly high species diversity in the Southern Ocean. The "longitarsal" group of the sea spider family Colossendeidae is especially abundant in this region. However, this group also includes some representatives from other oceans, which raises the question where the group originates from. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S10557903183051
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http://dx.doi.org/10.1016/j.ympev.2019.04.017DOI Listing
April 2019
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The RAG2 gene of yellow catfish (Tachysurus fulvidraco) and its immune response against Edwardsiella ictaluri infection.

Dev Comp Immunol 2019 Apr 16. Epub 2019 Apr 16.

Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl Breeding, College of Animal Sciences and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China. Electronic address:

Recombination-activating gene 2 (rag 2) allies with recombination-activating gene 1 (rag 1) and regulates the V(D)J recombination of immunoglobulin (Ig) and T-cell receptor (TCR) genes. Being a key player in the adaptive immune response of vertebrates, functional characterization of rag 2 from yellow catfish is beneficial for understanding the biological response towards the pathogens. In this report, we have cloned and characterized the rag 2 gene of yellow catfish, and a particular pattern of expression was analysed in the major tissues of yellow catfish. Read More

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http://dx.doi.org/10.1016/j.dci.2019.04.006DOI Listing

Effect of estradiol on hepatopancreatic lipid metabolism in the swimming crab, Portunus trituberculatus.

Gen Comp Endocrinol 2019 Apr 16. Epub 2019 Apr 16.

Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China; Centre for Research on Environmental Ecology and Fish Nutrition of Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, 201306, China; National Demonstration Centre for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China. Electronic address:

Estradiol is an important sex steroid hormone that involved in regulation of animal lipid metabolism. However, the effect of estradiol on lipid metabolism in swimming crab (Portunus trituberculatus) is unclear. The present study investigated the effect of four concentrations of exogenous estradiol (0, 0. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S00166480183058
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http://dx.doi.org/10.1016/j.ygcen.2019.04.019DOI Listing
April 2019
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Patterns of fish utilisation in a tropical Indo-Pacific mangrove-coral seascape, New Caledonia.

PLoS One 2019 19;14(4):e0207168. Epub 2019 Apr 19.

College of Science and Engineering, James Cook University, Townsville, Queensland, Australia.

Mangrove forests are important habitats for fish. However, their utilisation by fish, and the specific values they confer, are still not fully understood. This study describes how fish use mangrove forests in an Indo-Pacific mangrove-coral reef seascape. Read More

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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0207168PLOS
April 2019
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A freshwater analog for the production of Epiphyton-like microfossils.

Geobiology 2019 Apr 19. Epub 2019 Apr 19.

Department of Earth and Climate Sciences, San Francisco State University, San Francisco, California.

Calcified microbial microfossils-often interpreted as cyanobacteria-were important components of Precambrian and Paleozoic limestones, but their paucity in modern marine environments complicates our ability to make conclusive interpretations about their taxonomic affinity and geologic significance. Freshwater spring-associated limestones (e.g. Read More

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https://onlinelibrary.wiley.com/doi/abs/10.1111/gbi.12341
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http://dx.doi.org/10.1111/gbi.12341DOI Listing
April 2019
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Development and validation of a loop-mediated isothermal amplification (LAMP) assay - a rapid and sensitive detection tool for Mycobacterium avium subsp. paratuberculosis in small ruminants.

J Appl Microbiol 2019 Apr 19. Epub 2019 Apr 19.

Research Center for Emerging Infections and Zoonoses, University of Veterinary Medicine Hannover, Foundation Bünteweg 17, 30559, Hannover, Germany.

Aims: The aim of this study was to design an assay for the identification of Mycobacterium avium subsp. paratuberculosis (MAP) to be used in feces and milk samples of small ruminants with a loop-mediated isothermal amplification (LAMP) system, as a time saving and user-friendly method in contrast to real-time PCR.

Methods And Results: For the detection of MAP in milk and feces of small ruminants, we developed a set of primers, specific for the target gene ISMap02. Read More

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https://onlinelibrary.wiley.com/doi/abs/10.1111/jam.14284
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http://dx.doi.org/10.1111/jam.14284DOI Listing
April 2019
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Mixotrophic trade-off under warming and UVR in a marine and a freshwater alga.

J Phycol 2019 Apr 18. Epub 2019 Apr 18.

University Institute of Water research, University of Granada, C/Ramón y Cajal, 4, Granada, 18071, Spain.

Mixotrophic protists combine phagotrophy and phototrophy within a single cell. Greater phagotrophic activity could reinforce the bypass of carbon (C) flux through the bacteria-mixotroph link and thus lead to a more efficient transfer of C and other nutrients to the top of the trophic web. To determine whether foreseeable changes in temperature and UVR upset the mixotrophic trade-off in favor of one or the other nutritional strategy along the mixotrophic gradient is key to understanding the fate of C and mineral nutrients in the aquatic ecosystem. Read More

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https://onlinelibrary.wiley.com/doi/abs/10.1111/jpy.12865
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http://dx.doi.org/10.1111/jpy.12865DOI Listing
April 2019
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Behavioral and biochemical effects of the antifouler and antidandruff zinc pyrithione on the freshwater fish Gambusia holbrooki.

Fish Physiol Biochem 2019 Apr 18. Epub 2019 Apr 18.

Departamento de Biologia/CESAM, Universidade de Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal.

The presence of pharmaceutical residues in the aquatic environment is receiving great attention since the levels of these substances have significantly increased in this compartment, potentially leading to adverse ecological effects. Zinc pyrithione (ZnPt) is a widely used organometallic biocide, which is incorporated into antifouling formulas, such as paints, to prevent the establishment of biofilms on surfaces exposed to the aquatic environment. It is also used in cosmetics, such as antidandruff shampoos and soaps. Read More

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http://link.springer.com/10.1007/s10695-019-00634-5
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http://dx.doi.org/10.1007/s10695-019-00634-5DOI Listing
April 2019
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Precipitation and temperature drive continental-scale patterns in stream invertebrate production.

Sci Adv 2019 Apr 17;5(4):eaav2348. Epub 2019 Apr 17.

Department of Life Sciences, Imperial College London, Silwood Park Campus, Buckhurst Rd., Ascot, Berkshire SL5 7PY, UK.

Secondary production, the growth of new heterotrophic biomass, is a key process in aquatic and terrestrial ecosystems that has been carefully measured in many flowing water ecosystems. We combine structural equation modeling with the first worldwide dataset on annual secondary production of stream invertebrate communities to reveal core pathways linking air temperature and precipitation to secondary production. In the United States, where the most extensive set of secondary production estimates and covariate data were available, we show that precipitation-mediated, low-stream flow events have a strong negative effect on secondary production. Read More

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http://dx.doi.org/10.1126/sciadv.aav2348DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6469944PMC

Overview of Some Recent Advances in Improving Water and Energy Efficiencies in Food Processing Factories.

Front Nutr 2019 2;6:20. Epub 2019 Apr 2.

Department of Agricultural and Biosystems Engineering, Iowa State University, Ames, IA, United States.

Rapid development of food factories in both developed and developing countries, owing to continued growth in the world population, plays a critical role in the food supply chain, including environmental issues such as pollution, emissions, energy and water consumption, and thus food system sustainability. The objective of this study was to briefly review various environmental aspects of food processing operations, including aquatic, atmospheric, and solid waste generation, and also to discuss several strategies that many companies are using to reduce these negative impacts as well as to improve water and energy efficiency. To obtain higher energy efficiencies in food processing factories, two key operations can play critical roles: non-thermal processing (e. Read More

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http://dx.doi.org/10.3389/fnut.2019.00020DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6454086PMC
April 2019
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Corrigendum: Viscoelastic and Functional Properties of Cod-Bone Gelatin in the Presence of Xylitol and Stevioside.

Front Chem 2019 2;7:120. Epub 2019 Apr 2.

College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China.

[This corrects the article DOI: 10.3389/fchem.2018. Read More

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http://dx.doi.org/10.3389/fchem.2019.00120DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6456742PMC

The Structure and Occurrence of a Velum in Traps ().

Front Plant Sci 2019 22;10:302. Epub 2019 Mar 22.

Unit of Botany and Plant Physiology, Institute of Plant Biology and Biotechnology, University of Agriculture in Kraków, Cracow, Poland.

Bladderworts (, , Lamiales) are carnivorous plants that form small suction traps (bladders) for catching invertebrates. The velum is a cuticle structure that is produced by specialized trichomes of the threshold pavement epithelium. It is believed that the velum together with the mucilage seals the free edge of the trap door and that it is necessary for correct functioning of the trap. Read More

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https://www.frontiersin.org/article/10.3389/fpls.2019.00302/
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http://dx.doi.org/10.3389/fpls.2019.00302DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6454230PMC
March 2019
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Fungi Originating From Tree Leaves Contribute to Fungal Diversity of Litter in Streams.

Front Microbiol 2019 2;10:651. Epub 2019 Apr 2.

Ecology and Genetics, University of Oulu, Oulu, Finland.

Biomass production and decomposition are key processes in ecology, where plants are primarily responsible for production and microbes act in decomposition. Trees harbor foliar microfungi living on and inside leaf tissues, epiphytes, and endophytes, respectively. Early researchers hypothesized that all fungal endophytes are parasites or latent saprophytes, which slowly colonize the leaf tissues for decomposition. Read More

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https://www.frontiersin.org/article/10.3389/fmicb.2019.00651
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http://dx.doi.org/10.3389/fmicb.2019.00651DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6454979PMC
April 2019
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Fecal Colonization With Multidrug-Resistant Among Healthy Infants in Rural Bangladesh.

Front Microbiol 2019 2;10:640. Epub 2019 Apr 2.

Eawag, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland.

Third generation cephalosporins (3GC) are one of the main choices for treatment of infections caused by multidrug-resistant (MDR) Gram-negative bacteria. Due to their overuse, an increasing trend of resistance to 3GC has been observed in developing countries. Here, we describe fecal colonization of 3GC-resistant (3GCr) in healthy infants (1-12 months old) living in rural areas of Bangladesh. Read More

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https://www.frontiersin.org/article/10.3389/fmicb.2019.00640
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http://dx.doi.org/10.3389/fmicb.2019.00640DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6454046PMC
April 2019
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