63,408 results match your criteria Aquatic Invasions[Journal]


microRNA-mRNA analysis in pituitary and hypothalamus of sterile Japanese flounder.

Mol Reprod Dev 2019 Apr 22. Epub 2019 Apr 22.

Beidaihe Central Experiment Station, Chinese Academy of Fishery Sciences, Qinhuangdao, China.

Double haploidy is an advantageous situation for genetic mapping and genome sequencing studies. In the present study, the hypothalamus and pituitary gland from sterile and fertile double-haploid (DH) Japanese flounders (aged 5 years) were used as experimental materials for studying the expression of genes in individuals with reproductive disorders, using high-throughput sequencing technology. The results revealed abnormal levels of some hormones in sterile DHs during the breeding season. Read More

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https://onlinelibrary.wiley.com/doi/abs/10.1002/mrd.23150
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http://dx.doi.org/10.1002/mrd.23150DOI Listing
April 2019
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Environmental factors affecting water mite assemblages along eucrenon-hypocrenon gradients in Mediterranean karstic springs.

Exp Appl Acarol 2019 Apr 22. Epub 2019 Apr 22.

Department of Invertebrate Zoology and Limnology, University of Szczecin, Szczecin, Poland.

Springs are often recognized as biodiversity hotspots on the regional scale but at the same time they are among the most endangered freshwater habitats. Water mites are among the aquatic animal groups with highest share of crenobiotic (= spring-dwelling) species and, therefore, are possibly the best indicators of the ecological status of spring habitats. We studied water mites and environmental factors correlated with their distribution pattern along a eucrenon-hypocrenon gradient. Read More

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http://dx.doi.org/10.1007/s10493-019-00360-wDOI Listing

An evaluation of mixed plant protein in the diet of Yellow River carp (Cyprinus carpio): growth, body composition, biochemical parameters, and growth hormone/insulin-like growth factor 1.

Fish Physiol Biochem 2019 Apr 23. Epub 2019 Apr 23.

Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Lab of Aquatic Animal Nutrition and Environmental Health, Shandong Agricultural University, 61 Daizong Street, Tai'an, 271018, Shandong Province, China.

The aim of this work is to evaluate the effects of dietary inclusion of mixed plant protein (MP) (rapeseed meal:cottonseed meal:peanut meal = 1:1:1) on growth, body composition, blood biochemical parameters, growth hormone/insulin-like growth factor 1, and relative non-specific immune response in Yellow River carp Cyprinus carpio. Five isonitrogenous and isoenergetic trial diets were formulated to replace fish meal at 0 (MP0, control), 25% (MP25), 50% (MP50), 75% (MP75), and 100% (MP100) mixed plant protein, respectively. The 25% mixed plant protein did not affect the weight gain, specific growth rate, and protein efficiency ratio, whereas these parameters were depressed by 50% and above mixed plant protein. Read More

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http://link.springer.com/10.1007/s10695-019-00641-6
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http://dx.doi.org/10.1007/s10695-019-00641-6DOI Listing

Picogram per liter quantification of pyrethroid and organophosphate insecticides in surface waters: a result of large enrichment with liquid-liquid extraction and gas chromatography coupled to mass spectrometry using atmospheric pressure chemical ionization.

Anal Bioanal Chem 2019 Apr 22. Epub 2019 Apr 22.

Swiss Federal Institute of Aquatic Science and Technology (Eawag), 8600, Dübendorf, Switzerland.

Insecticides such as pyrethroids and organophosphates are extensively used globally. Once released into surface water bodies, they can pose a major threat to aquatic ecosystems already at trace concentrations. Therefore, selected pyrethroids and organophosphates are listed as priority substances within the European Water Framework Directive with chronic quality criteria in the picogram per liter range. Read More

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http://dx.doi.org/10.1007/s00216-019-01787-1DOI Listing

Toxicity Test Assay of Waterborne Methylmercury on the Japanese Flounder (Paralichthys olivaceus) at Embryonic-Larval Stages.

Bull Environ Contam Toxicol 2019 Apr 22. Epub 2019 Apr 22.

CAS Key Laboratory of Marine Ecology and Environment Sciences, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China.

Methylmercury (MeHg) is a widespread pollutant in aquatic ecosystems, but its toxicity to the early life stages of marine fish has not been adequately investigated. This study used acute toxicity tests on embryonic-larval stages of a marine flounder Paralichthys olivaceus to determine the LC values for embryos and larvae and evaluate the responses of several biological endpoints to subacute MeHg exposure. Under exposures (0-15 μg L) below LC values ( < 15. Read More

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http://dx.doi.org/10.1007/s00128-019-02619-9DOI Listing

Characterization and identification of selected metal-binding biomolecules from hepatic and gill cytosols of Vardar chub (Squalius vardarensis Karaman, 1928) using various techniques of liquid chromatography and mass spectrometry.

Metallomics 2019 Apr 23. Epub 2019 Apr 23.

Institute of Animal Sciences, Ile Ilievski 92a, 1000 Skopje, Macedonia.

Metals play crucial physiological roles, but they can also cause irreparable toxic effects through binding to important cellular biomolecules in aquatic organisms. The aim of this study was to determine the exact molecular masses and to identify several selected metal-binding biomolecules in hepatic and gill cytosols of Vardar chub (Squalius vardarensis Karaman, 1928). Methods applied for the achievement of this goal were SEC-AEC-HPLC for two-dimensional separation of cytosolic biomolecules, HR ICP-MS for metal measurements, and mass spectrometry (MALDI-TOF-MS and LC-MS/MS) for biomolecule mass determination and identification. Read More

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http://dx.doi.org/10.1039/c9mt00036dDOI Listing

Adaptation of a laboratory protocol to quantity microplastics contamination in estuarine waters.

MethodsX 2019 4;6:740-749. Epub 2019 Apr 4.

CIIMAR, Interdisciplinary Centre of Marine and Environmental Research University of Porto, Portugal.

One of the most used protocols to extract and quantify MPs is NOAA protocol in aquatic environments. However, there is still no standardized method to extract and quantify MPs in estuarine waters. The aim of this work was to adapt the NOAA protocol to quantify microplastics in estuarine water and provide all the details and changes to improve the efficiency of the method. Read More

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http://dx.doi.org/10.1016/j.mex.2019.03.027DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6462778PMC

Specific function and modulation of teleost monocytes/macrophages: polarization and phagocytosis.

Zool Res 2019 May 28;40(3):146-150. Epub 2019 Mar 28.

Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Ningbo University, Ningbo Zhejiang 315211, China.

Macrophages exist in most tissues and play a variety of functions in vertebrates. Teleost fish species are found in most aquatic environments throughout the world and are quite diverse for a group of vertebrate animals. Due to whole genome duplication and environmental adaptation, teleost monocytes/macrophages possess a variety of different functions and modulations compared with those of mammals. Read More

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http://dx.doi.org/10.24272/j.issn.2095-8137.2019.035DOI Listing

Falls in Geriatric Populations and Hydrotherapy as an Intervention: A Brief Review.

Geriatrics (Basel) 2018 Oct 18;3(4). Epub 2018 Oct 18.

Neuromechanics Laboratory, Mississippi State University, Mississippi State, MS 39762, USA.

Falls and fall-related injuries are a serious health concern in geriatric populations, especially with age-related deficits in postural control and during postural control challenging dual-task situations. Balance training has been reported to be beneficial in reducing falls. However, some of these exercises have their inherent physical challenges that prevent the elderly population from performing them effectively. Read More

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http://dx.doi.org/10.3390/geriatrics3040071DOI Listing
October 2018

Genetic diversity analysis of Thai indigenous pig population using microsatellite markers.

Asian-Australas J Anim Sci 2019 Mar 7. Epub 2019 Mar 7.

Division of Livestock Biotechnology and Reproduction, Faculty of Agricultural Sciences, Georg-August University of Göttingen, 37077 Göttingen, Germany.

Objective: European pigs have been imported to improve the economically important traits of Thai pigs by crossbreeding and was finally completely replaced. Currently Thai indigenous pigs are particularly kept in a small population. Therefore, indigenous pigs risk losing their genetic diversity and identity. Read More

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http://dx.doi.org/10.5713/ajas.18.0832DOI Listing

The role of cell surface structures in colonization of the air-liquid interface.

Authors:
Aretha Fiebig

J Bacteriol 2019 Apr 22. Epub 2019 Apr 22.

Department of Biochemistry and Molecular Biology, The University of Chicago, Chicago, IL.

In aquatic environments, spp. are often present at the boundary between liquid and air known as the neuston. I report an approach to study temporal features of colonization and pellicle biofilm development at the air-liquid interface, and have defined the role of cell surface structures in this process. Read More

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http://dx.doi.org/10.1128/JB.00064-19DOI Listing

Comparison of Diatoms and Dinoflagellates from Different Habitats as Sources of PUFAs.

Mar Drugs 2019 Apr 19;17(4). Epub 2019 Apr 19.

Department of Biological and Environmental Science, University of Jyväskylä, P.O. Box 35 (YA), 40014 Jyväskylä, Finland.

Recent studies have clearly shown the importance of omega-3 (ω-3) and omega-6 (ω-6) polyunsaturated fatty acids (PUFAs) for human and animal health. The long-chain eicosapentaenoic acid (EPA; 20:5ω-3) and docosahexaenoic acid (DHA; 22:6ω-3) are especially recognized for their nutritional value, and ability to alleviate many diseases in humans. So far, fish oil has been the main human source of EPA and DHA, but alternative sources are needed to satisfy the growing need for them. Read More

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http://dx.doi.org/10.3390/md17040233DOI Listing

Effects of an Experimental Water-level Drawdown on Methane Emissions from a Eutrophic Reservoir.

Ecosystems 2018 5;21(4):657-674. Epub 2017 Sep 5.

6United States Army Corps of Engineers, Louisville, Kentucky USA.

Reservoirs are a globally significant source of methane (CH) to the atmosphere. However, emission rate estimates may be biased low due to inadequate monitoring during brief periods of elevated emission rates (that is, hot moments). Here we investigate CH bubbling (that is, ebullition) during periods of falling water levels in a eutrophic reservoir in the Midwestern USA. Read More

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http://dx.doi.org/10.1007/s10021-017-0176-2DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6445499PMC
September 2017

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
April 2019
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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
April 2019
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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
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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
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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
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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
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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
2 Reads