72,672 results match your criteria Aquatic toxicology Amsterdam Netherlands[Journal]


An updated geographic distribution of Myxobolus cerebralis (Hofer, 1903) (Bivalvulida: Myxobolidae) and the first diagnosed case of whirling disease in wild-caught trout in the south-eastern United States.

J Fish Dis 2020 Jun 3. Epub 2020 Jun 3.

Aquatic Parasitology Laboratory, School of Fisheries, Aquaculture, and Aquatic Sciences, College of Agriculture, Auburn University, Auburn, AL, USA.

Myxobolus cerebralis (Bivalvulida: Myxobolidae), the aetiological agent of salmonid whirling disease, was detected in 2 river basins of North Carolina during 2015, which initiated the largest spatial-temporal monitoring project for the disease ever conducted within the south-eastern United States (focused mainly in eastern Tennessee and western North Carolina). A total of 2072 rainbow trout Oncorhynchus mykiss, 1,004 brown trout Salmo trutta and 468 brook trout Salvelinus fontinalis were screened from 113 localities within 7 river basins during June 2017 through October 2019. Infections were detected by pepsin-trypsin digest, microscopy and the species-specific nested polymerase chain reaction (PCR) in 19 localities across 6 river basins. Read More

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http://dx.doi.org/10.1111/jfd.13183DOI Listing

One panel to rule them all: DArTcap genotyping for population structure, historical demography, and kinship analyses, and its application to a threatened shark.

Mol Ecol Resour 2020 Jun 3. Epub 2020 Jun 3.

Research Institute for the Environment and Livelihoods, Charles Darwin University, Ellengowan Drive, Darwin, NT, 0909, Australia.

With recent advances in sequencing technology, genomic data are changing how important conservation management decisions are made. Applications such as Close-Kin Mark-Recapture demand large amounts of data to estimate population size and structure, and their full potential can only be realised through ongoing improvements in genotyping strategies. Here we introduce DArTcap, a cost-efficient method that combines DArTseq and sequence capture, and illustrate its use in a high resolution population analysis of Glyphis garricki, a rare, poorly known and threatened euryhaline shark. Read More

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http://dx.doi.org/10.1111/1755-0998.13204DOI Listing

Vermicomposting of duckweed (Spirodela polyrhiza) by employing Eisenia fetida: Changes in nutrient contents, microbial enzyme activities and earthworm biodynamics.

Bioresour Technol 2020 May 25;311:123585. Epub 2020 May 25.

School of Environment & Natural Resources, Doon University, Dehradun 248001, Uttarakhand, India. Electronic address:

This study investigated the vermicomposting of duckweed (DW) mixed with cow dung in 25 (T), 50 (T), 75 (T), 100% (T) ratio using Eisenia fetida under a 35 d trail. Decrease in pH, organic carbon (33.54-38. Read More

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http://dx.doi.org/10.1016/j.biortech.2020.123585DOI Listing

Factors responsible for forest and water bird distributions in rivers and lakes along an urban gradient in Beijing.

Sci Total Environ 2020 May 12;735:139308. Epub 2020 May 12.

State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049,China. Electronic address:

Urban rivers and lakes, in combination with nearby green spaces, provide important habitat for urban birds, but few urban studies have focused on forest and water birds simultaneously along an urban intensity gradient. In this study, we randomly chose 39 rivers and lakes along an urban gradient of Beijing to examine bird community parameters in relation to aquatic and terrestrial habitat conditions, aquatic life data, and water quality data. We selected models with the AICc (corrected Akaike information criterion) method, bivariate linear or generalized linear regressions, and structural equation modeling to determine distribution patterns of avian communities along an urban gradient and bird-environment relationships. Read More

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http://dx.doi.org/10.1016/j.scitotenv.2020.139308DOI Listing

Impacts of sampling rhythm and exposition on the effectiveness of artificial resting shelters for mosquito collection in northern Germany.

J Vector Ecol 2020 Jun;45(1):142-146

Carl von Ossietzky University of Oldenburg, Aquatic Ecology and Nature Conservation, Oldenburg, Germany.

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http://dx.doi.org/10.1111/jvec.12383DOI Listing

Herbicide treatment alters the effects of water hyacinth on larval mosquito abundance.

J Vector Ecol 2020 Jun;45(1):69-81

Department of Entomology and Nematology, University of California, Davis, Davis, CA, 95616, U.S.A.

Invasive aquatic weeds are managed with herbicides to reduce their negative impacts on waterways in many areas, including the California Delta Region. Herbicides create a dynamic environment of living and decomposing plant matter that could affect larval mosquitoes and other invertebrates, such as their predators and competitors. Our objective was to compare the number of larval mosquitoes in water or water hyacinth, before and after an herbicide treatment. Read More

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http://dx.doi.org/10.1111/jvec.12374DOI Listing

A developmental staging system and musculoskeletal development sequence of the Common Musk turtle (Sternotherus odoratus).

Dev Dyn 2020 Jun 3. Epub 2020 Jun 3.

Department of Earth and Planetary Science , Peabody Museum of Natural History, Yale University.

Background: The extremely derived body plan of turtles has sparked a great interest in studying their developmental biology. Here, we describe the embryonic development of the Stinkpot, or Common musk turtle (Sternotherus odoratus), a small aquatic turtle from the family Kinosternidae.

Results: We identify 20 distinct developmental stages, some comparable to stages described by previous studies on other turtles and some in between these, improving the resolution of the generalities of turtle development. Read More

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http://dx.doi.org/10.1002/dvdy.210DOI Listing

Second-order phase transition in phytoplankton trait dynamics.

Chaos 2020 May;30(5):053109

Eawag, Swiss Federal Institute of Aquatic Science and Technology, Überlandstrasse 133, 8600 Dübendorf, Switzerland.

Key traits of unicellular species, such as cell size, often follow scale-free or self-similar distributions, hinting at the possibility of an underlying critical process. However, linking such empirical scaling laws to the critical regime of realistic individual-based model classes is difficult. Here, we reveal new empirical scaling evidence associated with a transition in the population and the chlorophyll dynamics of phytoplankton. Read More

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http://dx.doi.org/10.1063/1.5141755DOI Listing

Data on metal-chelating, -immobilisation and biosorption properties by CWB2 in dependency on rare earth adaptation.

Data Brief 2020 Aug 21;31:105739. Epub 2020 May 21.

Institute of Biosciences, Environmental Microbiology Group, TU Bergakademie Freiberg, Leipziger Straße 29, 09599 Freiberg, Germany.

Recent studies have shown that the metal adaptation of Actinobacteria offers a rich source of metal inducible environmentally relevant bio-compounds and molecules. These interact through biosorption towards the unique cell walls or via metal chelating activity of metallophors with trace elements, heavy metals and even with lanthanides to overcome limitations and toxic concentrations. Herein, the purpose is to investigate the adaptation potential of CWB2 in dependence of the rare earths and to determine if we can utilize promising metallophore metal affinities for metal separation from aquatic solutions. Read More

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http://dx.doi.org/10.1016/j.dib.2020.105739DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7262544PMC

Dataset on the production of predominantly male tilapia progeny using two malawian tilapias, and .

Data Brief 2020 Aug 18;31:105716. Epub 2020 May 18.

National Aquaculture Centre, Domasi, Malawi.

A dataset is presented of an experiment that was conducted to compare the proportions of males obtained from hormonal sex reversed pure strain of and from interspecific hybridization of male x female. Part of the data in the dataset were published in a journal article https://doi.org/10. Read More

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http://dx.doi.org/10.1016/j.dib.2020.105716DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7262412PMC

soil moisture and temperature network in genhe watershed and saihanba area in China.

Data Brief 2020 Aug 19;31:105693. Epub 2020 May 19.

State Key Laboratory of Remote Sensing Science, Jointly Sponsored by Beijing Normal University and Aerospace Information Research Institute of Chinese Academy of Sciences, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China.

The dataset presented in this article is related to the work "Evaluation and Analysis of SMAP, AMSR2, and MEaSUREs Freeze/Thaw Products in China [1]". Soil moisture and temperature are important variables of land-atmosphere energy exchange, monitoring vegetation growth, predicting drought disasters and climate and hydrological modelling [2], [3], [4], [5], [6]. This work provides detailed information on soil moisture and temperature data network established in the Genhe watershed and Saihanba area in China, respectively. Read More

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http://dx.doi.org/10.1016/j.dib.2020.105693DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7256458PMC

Acute effects of chromium on hemato-biochemical parameters and morphology of erythrocytes in striped catfish .

Toxicol Rep 2020 11;7:664-670. Epub 2020 May 11.

Laboratory of Fish Ecophysiology, Department of Fisheries Management, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh.

Chromium is considered the most detrimental pollutant to the aquatic organisms. The present experiment was conducted to determine the acute toxicity of chromium in view of its effects on hemato-biochemical parameters and the structure of erythrocytes in striped catfish, . Fish were exposed to seven different concentrations (0, 10, 20, 30, 40, 50 and 60 mg/L) of chromium, each with three replications for 96 h. Read More

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http://dx.doi.org/10.1016/j.toxrep.2020.04.016DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7260616PMC

Anisakid nematode species identification in harbour porpoises () from the North Sea, Baltic Sea and North Atlantic using RFLP analysis.

Int J Parasitol Parasites Wildl 2020 Aug 20;12:93-98. Epub 2020 May 20.

Institute for Terrestrial and Aquatic Wildlife Research (ITAW), University of Veterinary Medicine, Foundation, Hannover, Werftstrasse 6, 25761, Büsum, Germany.

Harbour porpoises () are the only native cetacean species in the German North and Baltic Seas and the final host of (.) , which infects their first and second gastric compartments and may cause chronic ulcerative gastritis. belongs to the family Anisakidae (Ascaridoidea, Rhabditida) as well as the phocine gastric nematode species (. Read More

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http://dx.doi.org/10.1016/j.ijppaw.2020.05.004DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7260678PMC

Genetic evidence for the mating system and reproductive success of black sea bream ().

Ecol Evol 2020 May 3;10(10):4483-4494. Epub 2020 Apr 3.

State Key Laboratory of Biocontrol Institute of Aquatic Economic Animals and the Guangdong Province Key Laboratory for Aquatic Economic Animals School of Life Sciences Sun Yat-Sen University Guangzhou China.

Understanding the mating system and reproductive success of a species provides evidence for sexual selection. We examined the mating system and the reproductive success of captive adult black sea bream (), using parentage assignment based on two microsatellites multiplex PCR systems, with 91.5% accuracy in a mixed family (29 sires, 25 dams, and 200 offspring). Read More

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http://dx.doi.org/10.1002/ece3.6215DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7246203PMC

Population genomic response to geographic gradients by widespread and endemic fishes of the Arabian Peninsula.

Ecol Evol 2020 May 12;10(10):4314-4330. Epub 2020 Apr 12.

Division of Biological and Environmental Science and Engineering Red Sea Research Center King Abdullah University of Science and Technology Thuwal Saudi Arabia.

Genetic structure within marine species may be driven by local adaptation to their environment, or alternatively by historical processes, such as geographic isolation. The gulfs and seas bordering the Arabian Peninsula offer an ideal setting to examine connectivity patterns in coral reef fishes with respect to environmental gradients and vicariance. The Red Sea is characterized by a unique marine fauna, historical periods of desiccation and isolation, as well as environmental gradients in salinity, temperature, and primary productivity that vary both by latitude and by season. Read More

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http://dx.doi.org/10.1002/ece3.6199DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7246217PMC

Clinical Features, Diagnosis and Management of Patients with Suspicion of Fascioliasis in Kohgiluyeh and Boyer-Ahmad Province, Southwestern Iran.

Iran J Parasitol 2020 Jan-Mar;15(1):84-90

Cellular and Molecular Research Center, Yasuj University of Medical Sciences, Yasuj, Iran.

Background: In the current study, we described the epidemiological features, clinical presentation, diagnosis and management of patients with suspicion of fascioliasis in Kohgiluyeh and Boyer-Ahmad Province in southwest of Iran.

Methods: Overall, 56 patients with suspicion of fascioliasis, based on their clinical signs and symptoms that referred to Clinic of Internal Medicine in Yasuj city, from 2014 to 2016 were enrolled. Demographic data, history of eating aquatic local plants, the chief complains, and laboratory findings were recorded for each patient. Read More

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Resilience of aquatic systems: Review and management implications.

Aquat Sci 2020 Mar;82(2):1-44

Office of Research and Development, Center for Environmental Measurement and Modeling, Watershed and Ecosystem Characterization Division, U.S. Environmental Protection Agency, Cincinnati, OH, USA.

Our understanding of how ecosystems function has changed from an equilibria-based view to one that recognizes the dynamic, fluctuating, nonlinear nature of aquatic systems. This current understanding requires that we manage systems for resilience. In this review, we examine how resilience has been defined, measured and applied in aquatic systems, and more broadly, in the socioecological systems in which they are embedded. Read More

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http://dx.doi.org/10.1007/s00027-020-00717-zDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7265686PMC

Occurrence and potential risk of organophosphorus pesticides in urbanised Linggi River, Negeri Sembilan, Malaysia.

Environ Geochem Health 2020 Jun 2. Epub 2020 Jun 2.

Department of Environment, Faculty of Forestry and Environment, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia.

The application of organophosphorus pesticides (OPPs) increased gradually because of the rise in global food demand that triggered the agriculture sector to increase the production, leading to OPP residues in the surface water. This study elucidated the presence of OPPs and estimated its ecological risk in the riverine ecosystem of the urbanised Linggi River, Negeri Sembilan, Malaysia. The OPP concentration in surface water was determined using solid-phase extraction method and high-performance liquid chromatography coupled with diode array detection. Read More

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http://dx.doi.org/10.1007/s10653-020-00604-4DOI Listing

Induction of micronuclei, nuclear anomalies, and dimensional changes in erythrocytes of the rare minnow (Gobiocypris rarus) by lanthanum.

Environ Sci Pollut Res Int 2020 Jun 1. Epub 2020 Jun 1.

School of Animal Science and Nutritional Engineering, Wuhan Polytechnic University, Wuhan, 430023, China.

The genotoxicity and cytotoxicity of lanthanum (La(III)) were studied in fish micronucleus analysis in erythrocytes of the rare minnow (Gobiocypris rarus). Fish were exposed to 0.04, 08, 0. Read More

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http://dx.doi.org/10.1007/s11356-020-09396-7DOI Listing

Gammarid exposure to pyriproxyfen and/or cadmium: what effects on the methylfarnesoate signalling pathway?

Environ Sci Pollut Res Int 2020 Jun 1. Epub 2020 Jun 1.

Laboratory of Animal Ecology and Ecotoxicology (LEAE) - Freshwater and OceaniC sciences Unit of reSearch (FOCUS), Chemistry Institute, University of Liège, Bât. B6C, 11 allée du 6 Août, B-4000, Sart-Tilman, Belgium.

Due to expected changes in climate, it is predicted that disease-carrying mosquitoes will expand their geographical range, resulting in increased use of insect growth regulators (IGRs) to face their proliferation. Among IGRs, pyriproxyfen (PXF) is widely used and has been shown to prevent larvae from developing into adults, rendering them unable to reproduce. However, because of the similarity of crustacean and insect endocrine systems, PXF could also impact aquatic crustaceans. Read More

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http://dx.doi.org/10.1007/s11356-020-09419-3DOI Listing

Genomic Insights into the Aquatic Fusarium spp. QHM and BWC1 and Their Application in Phenol Degradation.

Curr Microbiol 2020 Jun 1. Epub 2020 Jun 1.

College of Environmental Science and Engineering, Liaoning Technical University, No. 47 Zhonghua Road, Xihe District, Fuxin City, 123000, Liaoning, China.

Fusarium species are widely distributed in ecosystems with wide pH ranges and play pivotal roles in aquatic communities through xenobiotic degradation. It is necessary to explore genomic insights for the application of Fusarium species. In this study, the aquatic Fusarium strains QHM and BWC1 were isolated from a coal mine and a subterranean river, respectively, cultured under acidic conditions and sequenced genomically. Read More

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http://dx.doi.org/10.1007/s00284-020-02050-yDOI Listing

Optimized hidden target screening for very polar molecules in surface waters including a compound database inquiry.

Anal Bioanal Chem 2020 Jun 2. Epub 2020 Jun 2.

Technical University of Munich (Chair of Urban Water Systems Engineering), Am Coulombwall 3, 85748, Garching, Germany.

Highly polar trace organic compounds, which are persistent, mobile, and toxic (PMT) or are very persistent and very mobile (vPvM) in the aquatic environment, may pose a risk to surface water, ground water, and drinking water supplies. Despite the advances in liquid chromatography-mass spectrometry, there often exists an analytical blind spot when it comes to very polar chemicals. This study seeks to make a broad polarity range analytically accessible by means of serially coupling reversed-phase liquid chromatography (RPLC) and hydrophilic interaction liquid chromatography (HILIC) to high-resolution mass spectrometry (HRMS). Read More

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http://dx.doi.org/10.1007/s00216-020-02743-0DOI Listing

Genome sequence and comparative analysis of reindeer (Rangifer tarandus) in northern Eurasia.

Sci Rep 2020 Jun 2;10(1):8980. Epub 2020 Jun 2.

Natural Resources Institute Finland, FI-31600, Jokioinen, Finland.

Reindeer are semi-domesticated ruminants that have adapted to the challenging northern Eurasian environment characterized by long winters and marked annual fluctuations in daylight. We explored the genetic makeup behind their unique characteristics by de novo sequencing the genome of a male reindeer and conducted gene family analyses with nine other mammalian species. We performed a population genomics study of 23 additional reindeer representing both domestic and wild populations and several ecotypes from various geographic locations. Read More

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http://dx.doi.org/10.1038/s41598-020-65487-yDOI Listing

Marine collagen and its derivatives: Versatile and sustainable bio-resources for healthcare.

Mater Sci Eng C Mater Biol Appl 2020 Aug 17;113:110963. Epub 2020 Apr 17.

Dept of Engineering for Innovation, University of Salento, Lecce, Italy.

In the last two decades, marine collagen has attracted great scientific and industrial interest as a 'blue resource', with potential for use in various health-related sectors, such as food, medicine, pharmaceutics and cosmetics. In particular, the large availability of polluting by-products from the fish processing industry has been the key factor driving the research towards the conversion of these low cost by-products (e.g. Read More

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http://dx.doi.org/10.1016/j.msec.2020.110963DOI Listing

Isolation and characterization of bacteriophages against virulent Aeromonas hydrophila.

BMC Microbiol 2020 Jun 1;20(1):141. Epub 2020 Jun 1.

Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China.

Background: Aeromonas hydrophila is an important water-borne pathogen that leads to a great economic loss in aquaculture. Along with the abuse of antibiotics, drug-resistant strains rise rapidly. In addition, the biofilms formed by this bacterium limited the antibacterial effect of antibiotics. Read More

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http://dx.doi.org/10.1186/s12866-020-01811-wDOI Listing

Evolution in interacting species alters predator life-history traits, behaviour and morphology in experimental microbial communities.

Proc Biol Sci 2020 Jun 3;287(1928):20200652. Epub 2020 Jun 3.

Department of Microbiology, University of Helsinki, PO Box 56, 00014 Helsinki, Finland.

Predator-prey interactions heavily influence the dynamics of many ecosystems. An increasing body of evidence suggests that rapid evolution and coevolution can alter these interactions, with important ecological implications, by acting on traits determining fitness, including reproduction, anti-predatory defence and foraging efficiency. However, most studies to date have focused only on evolution in the prey species, and the predator traits in (co)evolving systems remain poorly understood. Read More

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http://dx.doi.org/10.1098/rspb.2020.0652DOI Listing

Reducing vessel noise: An example of a solar-electric passenger ferry.

J Acoust Soc Am 2020 May;147(5):3575

Centre for Marine Science & Technology, Curtin University, Perth, U1987, Western Australia 6845, Australia.

Concern over the impacts of anthropogenic noise on aquatic fauna is increasing, as is the number of vessels in the world's oceans, lakes, and rivers. Sound signatures of different vessel types are increasingly characterized, yet few reports are available on solar-electric powered vessels. Such data are important to model the sound levels experienced by marine fauna and their potential impacts. Read More

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http://dx.doi.org/10.1121/10.0001264DOI Listing

Trends and developments in international regulation of anthropogenic sound in aquatic habitats.

J Acoust Soc Am 2020 May;147(5):3100

Chesapeake Biological Laboratory, University of Maryland Center for Environmental Science, Solomons, Maryland 20688, USA.

As the understanding of the possible impacts of anthropogenic underwater sound has increased, so have efforts been designed to reduce the effects to marine species and habitats. Consequently, over the last decade, a large number of new policies, regulations, and joint efforts to reduce anthropogenic sound and mitigate affects to aquatic life have been introduced internationally. The United States, Canada, the EU, and many regional and multinational organizations have implemented regulations governing underwater anthropogenic sound. Read More

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http://dx.doi.org/10.1121/10.0001139DOI Listing

Ameliorative Effects of Peptides from the Oyster () Protein Hydrolysates against UVB-Induced Skin Photodamage in Mice.

Mar Drugs 2020 May 31;18(6). Epub 2020 May 31.

College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China.

Chronic exposure to ultraviolet B (UVB) irradiation is a major cause for skin photoaging. UVB induces damage to skin mainly by oxidative stress, inflammation, and collagen degradation. This paper investigated the photo-protective effects of peptides from oyster () protein hydrolysates (OPs) by topical application on the skin of UVB-irradiated mice. Read More

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http://dx.doi.org/10.3390/md18060288DOI Listing

A Novel Peptide Oligomer of Bacitracin Induces M1 Macrophage Polarization by Facilitating Ca Influx.

Nutrients 2020 May 29;12(6). Epub 2020 May 29.

Anti-Aging Research Center, Dong-eui University, Busan 47340, Korea.

Antimicrobial peptides (AMPs) are components of the innate immune system and form the first defense against pathogens for various organisms. In the present study, we assessed whether CSP32, a novel AMP oligomer of bacitracin isolated from a strain of ., regulates the polarization of murine macrophage-like RAW 264. Read More

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http://dx.doi.org/10.3390/nu12061603DOI Listing

Halophytes as sources of metals in estuarine systems with low levels of contamination.

Funct Plant Biol 2013 Aug;40(9):931-939

IMAR - Institute of Marine Research, Department of Life Sciences, Faculty of Sciences and Technology, University of Coimbra, 3004-517 Coimbra, Portugal.

Heavy metal concentrations present in the above- and beowground tissues of Scirpus maritimus L., Spartina maritima (Curtis) Fernald and Zostera noltii Hornem were analysed seasonally in the Mondego Estuary, Portugal. The sediments of the estuary were confirmed to contain only low concentrations of heavy metals. Read More

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http://dx.doi.org/10.1071/FP12300DOI Listing

The mixotrophic nature of photosynthetic plants.

Funct Plant Biol 2013 May;40(5):425-438

School of Agriculture and Food Sciences, The University of Queensland, St Lucia, Qld 4072, Australia.

Plants typically have photosynthetically competent green shoots. To complement resources derived from the atmospheric environment, plants also acquire essential elements from soil. Inorganic ions and molecules are generally considered to be the sources of soil-derived nutrients, and plants tested in this respect can grow with only inorganic nutrients and so can live as autotrophs. Read More

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http://dx.doi.org/10.1071/FP13061DOI Listing

Ecological implications of organic carbon dynamics in the traps of aquatic carnivorous Utricularia plants.

Funct Plant Biol 2011 Jul;38(7):583-593

Faculty of Science, University of South Bohemia, Department of Ecosystem Biology, Branišovská 31, CZ-37005 České Budějovice, Czech Republic.

Rootless aquatic carnivorous Utricularia exude up to 25% of their photosynthates into the trap lumen, which also harbours a complex microbial community thought to play a role in enhancing Utricularia nutrient acquisition. We investigated the composition of organic carbon in the trap fluid, its availability for microbial uptake, the influence of plant nutrient status and trap age on its biodegradability, and the composition of prokaryotic assemblages within the traps of three aquatic Utricularia species. Using ion chromatography and basal respiration rate measurements we confirmed that up to 30% of total dissolved organic carbon in Utricularia trap fluid in oligotrophic conditions was easily biodegradable compounds commonly found in plant root exudates (mainly glucose, fructose and lactate). Read More

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http://dx.doi.org/10.1071/FP11023DOI Listing

Geographically distinct Ceratophyllum demersum populations differ in growth, photosynthetic responses and phenotypic plasticity to nitrogen availability.

Funct Plant Biol 2012 Sep;39(9):774-783

Department of Bioscience, Plant Biology, Aarhus University, Ole Worms Allé 1, Building 1135, 8000 Aarhus C, Denmark.

Two geographically distinct populations of the submerged aquatic macrophyte Ceratophyllum demersum L. were compared after acclimation to five different nitrogen concentrations (0.005, 0. Read More

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http://dx.doi.org/10.1071/FP12068DOI Listing
September 2012

Leaf traits and persistence of relict and endangered tree species in a rare plant community.

Funct Plant Biol 2012 Jun;39(6):512-518

Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, PR China.

The rare plant communities, located in Houhe Nature Reserve, Hubei, China, are remnant evergreen and deciduous mixed broadleaved forest where many tree species have been identified as Tertiary relict and endangered plants and environmental conditions are typically characterised by low light and high rainfall. Knowledge of their patterns of leaf traits would contribute to our understanding of persistence of relict and endangered species. Here, we measured leaf mass per unit area (LMA), mass-based photosynthetic capacity (Amass), nitrogen content (Nmass), construction cost (CCmass) and photosynthetic nitrogen-use efficiency (PNUE) of 20 major tree species in a typical rare plant community. Read More

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http://dx.doi.org/10.1071/FP11291DOI Listing

Waste sludge from shipping docks as a catalyst to remove amoxicillin in water with hydrogen peroxide and ultrasound.

Ultrason Sonochem 2020 May 28;68:105187. Epub 2020 May 28.

Department of Chemical Engineering, Polytechnique Montréal, C.P., 6079, Succ. CV Montréal, H3C 3A7, Québec, Canada. Electronic address:

The waste sludge from shipping docks contains important elements that can be used as a catalyst after proper processing. The purpose of this study was to remove of amoxicillin (AMX) from the aquatic environment using waste sludge from shipping docks as catalyst in the presence of hydrogen peroxide/ultrasound waves. The catalyst was produced by treating waste sludge at 400 °C for 2 h. Read More

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http://dx.doi.org/10.1016/j.ultsonch.2020.105187DOI Listing

Strawberry-like SiO/Ag nanocomposites immersed filter paper as SERS substrate for acrylamide detection.

Food Chem 2020 May 28;328:127106. Epub 2020 May 28.

College of Food Science and Technology, and Laboratory of Quality & Safety Risk Assessment for Aquatic Products on Storage and Preservation (hanghai), Ministry of Agriculture, Shanghai Ocean University, Shanghai 201306, China. Electronic address:

In this work, based on the strawberry-like SiO/Ag nanocomposites (SANC) immersed filter paper, a newly surface-enhanced Raman scattering (SERS) substrate was constructed for the detection of acrylamide (AAm) in food products. To construct filter paper-based SANC (F-SANC) SERS substrates, SiO nanoparticles (SNP) were firstly synthesized and acted as carriers. After that, the in-situ preparation of silver nanoparticles (Ag NP) on SNP surface was carried out to form the strawberry-like three-dimensional (3D) structure of SANC. Read More

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http://dx.doi.org/10.1016/j.foodchem.2020.127106DOI Listing

Toxicity of deltamethrin to Eriocheir sinensis and the isolation of a deltamethrin-degrading bacterium, Paracoccus sp. P-2.

Chemosphere 2020 May 26;257:127162. Epub 2020 May 26.

Jiangsu Key Laboratory for Aquatic Crustacean Diseases, College of Life Sciences & College of Marine Science and Engineering, Nanjing Normal University, 1 Wenyuan Road, Nanjing, 210023, China; Co-Innovation Center for Marine Bio-Industry Technology of Jiangsu Province, Lianyungang, Jiangsu, China. Electronic address:

Deltamethrin is used widely in Eriocheir sinensis aquaculture to remove wild fish and parasites. The residual deltamethrin greatly affects the growth and quality of E. sinensis. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2020.127162DOI Listing

Prioritizing phthalate esters (PAEs) using experimental in vitro/vivo toxicity assays and computational in silico approaches.

J Hazard Mater 2020 May 18;398:122851. Epub 2020 May 18.

Key Laboratory of Reservoir Aquatic Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China; University of Chinese Academy of Sciences, Beijing, 100049, China; College of Life Science, Henan Normal University, Xinxiang, 453007, China. Electronic address:

Phthalate esters (PAEs) pose prominent ecological risks owing to their multiplex toxicity potentials and ubiquitous detection in the environment. Therefore, this study aims to prioritize the individual and mixtures of six PAEs based on their toxicological implications using in vitro and vivo models exposed at environmentally relevant concentrations. Results were further confirmed using in silico Combination index (CI) and Independent action (IA), and molecular docking models. Read More

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http://dx.doi.org/10.1016/j.jhazmat.2020.122851DOI Listing

Temperature and concentration of ZnO particles affect life history traits and oxidative stress in Daphnia magna.

Aquat Toxicol 2020 May 16;224:105517. Epub 2020 May 16.

Department of Biology, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand; Gut Biology and Microbiota Research Unit, Prince of Songkla University, Hat Yai, Songkhla, Thailand. Electronic address:

Temperature affects physiological processes in organisms and the toxicity of chemicals. The widespread industrial use of ZnO causes contamination in aquatic ecosystems. This study aimed to investigate the chronic toxicity of ZnO at different temperatures using Daphnia magna as a model organism. Read More

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http://dx.doi.org/10.1016/j.aquatox.2020.105517DOI Listing

Mechanism insights into the transformation of carbosulfan during apple drying processes.

Ecotoxicol Environ Saf 2020 May 30;201:110729. Epub 2020 May 30.

State Key Laboratory of Food Science and Technology, Jiangnan University, China; School of Food Science and Technology, Jiangnan University, No.1800 Lihu Avenue, Wuxi, Jiangsu Province, 214122, China. Electronic address:

The transformation of carbosulfan (CSN) in apples was investigated during oven-drying, microwave drying, and sun-drying. CSN transformed primarily into carbofuran (COA) during these drying processes. The conversion kinetics of CSN and COA was fitted by curve regression and mainly conformed to quadratic models (R = 0. Read More

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http://dx.doi.org/10.1016/j.ecoenv.2020.110729DOI Listing

Effects of Microcystis aeruginosa and microcystin-LR on intestinal histology, immune response, and microbial community in Litopenaeus vannamei.

Environ Pollut 2020 May 12;265(Pt A):114774. Epub 2020 May 12.

Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, 510300, PR China. Electronic address:

Microcystis aeruginosa (MA) is a primary hazardous cyanobacteria species in aquatic ecosystems that can produce microcystin-LR (MC-LR), which harms aquatic animals. The intestine is an important target tissue for MA and MC-LR. In this study, we investigated the effects of MA and MC-LR exposure on the intestinal microbiota variation and immune responses of Litopenaeus vannamei. Read More

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http://dx.doi.org/10.1016/j.envpol.2020.114774DOI Listing

Quantitative structure-activity relationship models for predicting singlet oxygen reaction rate constants of dissociating organic compounds.

Sci Total Environ 2020 May 19;735:139498. Epub 2020 May 19.

State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, School of Environment, Northeast Normal University, Changchun 130117, China. Electronic address:

As singlet oxygen (O) is ubiquitous in the environment, O-involved oxidation may play an important role in the transformation and fate of organic pollutants. Accordingly, the reaction rate constants (k) of organic compounds with O are important to determine the environmental fate and persistence assessment of organic pollutants. However, currently there are limited k data available, especially for organic chemicals with different charged (deprotonated/protonated) forms. Read More

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http://dx.doi.org/10.1016/j.scitotenv.2020.139498DOI Listing

Occurrences, sources, and transport of organochlorine pesticides in the aquatic environment of Antarctica.

Sci Total Environ 2020 May 19;735:139475. Epub 2020 May 19.

Gdansk University of Technology, Faculty of Chemistry, Department of Analytical Chemistry, 11/12 Narutowicza St., Gdansk 80-233, Poland. Electronic address:

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http://dx.doi.org/10.1016/j.scitotenv.2020.139475DOI Listing

Impacts on water quality by in situ induced ozone‑oxygen oxidation in a polluted urban reservoir.

Sci Total Environ 2020 May 13;735:139364. Epub 2020 May 13.

Facultad de Ciencias Biológicas, Benemérita Universidad Autónoma de Puebla. Av. San Claudio y 14 sur C.U. Edificio Bio-1. Col. San Manuel, Puebla, C.P. 72560 Puebla, Mexico.

The results of the successful implementation of a treatment based on the injection of ozone (O) and oxygen (O) into a contaminated body of water are reported for the first time. Three decontaminating units (SCAVENGER™), which have the capacity to inject up to 120 g O/h and 250 Kg O/h in the form of microbubbles (90 ± 10 μm in diameter), were placed in the contaminated Valsequillo reservoir, Central Mexico. In order to evaluate the efficacy of the treatment, 20 physicochemical parameters, 18 organic compounds, 66 inorganic compounds and 11 biological indicators were measured before, during and after the treatment; all of them in several representative sites of the east side of the Valsequillo reservoir. Read More

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http://dx.doi.org/10.1016/j.scitotenv.2020.139364DOI Listing

Drivers of pesticide resistance in freshwater amphipods.

Sci Total Environ 2020 May 8;735:139264. Epub 2020 May 8.

UFZ, Helmholtz Centre for Environmental Research, Department of System-Ecotoxicology, Permoserstraße 15, 04318 Leipzig, Germany; RWTH Aachen University, Institute for Environmental Research (Biology V), Worringerweg 1, 52074 Aachen, Germany. Electronic address:

Aquatic invertebrates exposed to pesticides may develop pesticide resistance. Based on a meta-analysis we revealed environmental factors driving the magnitude of resistance in the freshwater amphipod Gammarus pulex in the field. We showed that (i) insecticide tolerance of G. Read More

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http://dx.doi.org/10.1016/j.scitotenv.2020.139264DOI Listing

Persistence, ecological risks, and oxidoreductases-assisted biocatalytic removal of triclosan from the aquatic environment.

Sci Total Environ 2020 May 12;735:139194. Epub 2020 May 12.

Tecnologico de Monterrey, School of Engineering and Sciences, Campus Monterrey, Ave. Eugenio Garza Sada 2501, CP 64849 Monterrey, N.L., Mexico. Electronic address:

Triclosan (TCS) has been immensely employed in health care products and consumer items, as an active agent with fungicidal and bactericidal potentialities, such as soaps, sanitizers, tubes of toothpaste, deodorants, skin creams, and so on for over last five decades. The ultimate excretory route of TCS ends in our water matrices, thus has been frequently detected with ecological and human-health related matters and hazards. Bioactive residues of TCS reach into the key atmosphere compartment through numerous routes, such as (1) scarce or ineffective elimination or degradation throughout the treatment practices, (2) abandoned landfill leachates, (3) leakage from the discarded TCS-containing materials, and so on. Read More

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http://dx.doi.org/10.1016/j.scitotenv.2020.139194DOI Listing

Is the Doce River elutriate or its water toxic to Astyanax lacustris (Teleostei: Characidae) three years after the Samarco mining dam collapse?

Sci Total Environ 2020 May 25;736:139644. Epub 2020 May 25.

Laboratório de Ictiologia Aplicada - LabPeixe, Universidade Vila Velha, Complexo Biopráticas - Av. José Dantas de Melo, 21, Boa Vista, Zip Code 29102-770 Vila Velha, ES, Brazil. Electronic address:

In 2015, after the Fundão dam failure, in Minas Gerais State, Brazil, around 50 million cubic meters of sludge from iron mining tailings were discharged into the Doce River. After the dam collapse, surpassing concentrations of metals were observed in the river sediment, which could be harmful to aquatic organisms, including the fishes. The present study aimed to evaluate the toxic effects of both elutriate and water, collected from the Doce River, on Astyanax lacustris three years after the dam failure. Read More

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http://dx.doi.org/10.1016/j.scitotenv.2020.139644DOI Listing

Magnetic activated carbon (MAC) mitigates contaminant bioavailability in farm pond sediment and dietary risks in aquaculture products.

Sci Total Environ 2020 May 15;736:139185. Epub 2020 May 15.

Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong.

Heavy metals (HMs) and polycyclic aromatic hydrocarbons (PAHs) are among the contaminants of concern in aquaculture ponds due to their frequent detection and high bioaccumulation in aquatic products and hence high dietary risks to human beings. In this study, magnetic activated carbon (MAC) was added as a stabilization and removal adsorbent to native pond sediment with known contamination of HMs and PAHs to reduce the tissue residues and dietary risks of HMs and PAHs in a model aquaculture species (Venerupis philippinarum) in the course of a 28-day bioaccumulation experiment. Meanwhile, passive sampling techniques based on diffusive gradient in thin films (DGT) and polydimethylsiloxane (PDMS) were applied to sense the bioavailable fraction of HMs and PAHs in sediment during the stabilization process. Read More

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http://dx.doi.org/10.1016/j.scitotenv.2020.139185DOI Listing

Innovative, ecofriendly biosorbent-biodegrading biofilms for bioremediation of oil- contaminated water.

N Biotechnol 2020 May 30. Epub 2020 May 30.

Dept. of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale delle Scienze, blg. 16, 90128, Palermo, Italy. Electronic address:

Immobilization of microorganisms capable of degrading specific contaminants significantly promotes bioremediation processes. In this study, innovative and ecofriendly biosorbent-biodegrading biofilms have been developed in order to remediate oil-contaminated water. This was achieved by immobilizing hydrocarbon-degrading gammaproteobacteria and actinobacteria on biodegradable oil-adsorbing carriers, based on polylactic acid and polycaprolactone electrospun membranes. Read More

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http://dx.doi.org/10.1016/j.nbt.2020.04.001DOI Listing