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https://www.readbyqxmd.com/read/28224335/evidence-of-colloidal-transport-of-pahs-during-column-experiments-run-with-contaminated-soil-samples
#1
Karim Benhabib, Marie-Odile Simonnot, Pierre Faure, Michel Sardin
Brownfield soils may contain high levels of organic pollutants particularly polycyclic aromatic hydrocarbons (PAHs). It is essential to predict their migration and fate and to evaluate the risk of transfer to sensitive targets, such as water resources, ecosystems and human health. In this study, soil samples have been taken from an experimental contaminated site of former steel activities located at Homecourt (Lorraine, France). These samples have been lixiviated in laboratory column in water-saturated condition at room temperature...
February 21, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28221708/improved-management-of-small-pelagic-fisheries-through-seasonal-climate-prediction
#2
Désirée Tommasi, Charles A Stock, Kathleen Pegion, Gabriel A Vecchi, Richard D Methot, Michael A Alexander, David M Checkley
Populations of small pelagic fish are strongly influenced by climate. The inability of managers to anticipate environment-driven fluctuations in stock productivity or distribution can lead to overfishing and stock collapses, inflexible management regulations inducing shifts in the functional response to human predators, lost opportunities to harvest populations, bankruptcies in the fishing industry, and loss of resilience in the human food supply. Recent advances in dynamical global climate prediction systems allow for sea surface temperature (SST) anomaly predictions at a seasonal scale over many shelf ecosystems...
October 12, 2016: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28190733/the-evolution-of-lateralization-in-group-hunting-sailfish
#3
Ralf H J M Kurvers, Stefan Krause, Paul E Viblanc, James E Herbert-Read, Paul Zaslansky, Paolo Domenici, Stefano Marras, John F Steffensen, Morten B S Svendsen, Alexander D M Wilson, Pierre Couillaud, Kevin M Boswell, Jens Krause
Lateralization is widespread throughout the animal kingdom [1-7] and can increase task efficiency via shortening reaction times and saving on neural tissue [8-16]. However, lateralization might be costly because it increases predictability [17-21]. In predator-prey interactions, for example, predators might increase capture success because of specialization in a lateralized attack, but at the cost of increased predictability to their prey, constraining the evolution of lateralization. One unexplored mechanism for evading such costs is group hunting: this would allow individual-level specialization, while still allowing for group-level unpredictability...
February 20, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28183054/national-estimation-of-seafood-consumption-in-mexico-implications-for-exposure-to-methylmercury-and-polyunsaturated-fatty-acids
#4
Alejandra Cantoral, Carolina Batis, Niladri Basu
BACKGROUND: Seafood is a good source of Omega-3 polyunsaturated fatty acids (ω3-PUFA) but also contains the toxic contaminant methylmercury (MeHg). National estimates of exposure to both compounds through seafood intake in Mexico are not known. The objective of the current study was to describe national seafood consumption habits and to estimate seafood-based exposure to ω3-PUFAs and MeHg. METHODS: We analyzed data from a 24-h dietary recall extracted from the 2012 National Health and Nutrition Survey of Mexico (n = 10,096 subjects aged 1y and older)...
January 26, 2017: Chemosphere
https://www.readbyqxmd.com/read/28112031/mercury-in-canned-fish-from-local-markets-in-the-czech-republic
#5
Tomas Kral, Jana Blahova, Lenka Sedlackova, Jiri Kalina, Zdenka Svobodova
The aim of this survey was to compare total mercury (THg) in canned fish in terms of species and fishing area. A number of 110 samples of canned fish, which were divided by fish species and fishing area, were analysed. The highest THg content in muscle tissue was found in the escolar. In other fish species, the highest level was detected in tuna. Mercury content in tuna differed significantly from mackerel, sardine, and sprat. Mercury content in herring differed significantly from sprat. The order of the fish according to their THg content corresponds to their status in the aquatic food chain...
February 6, 2017: Food Additives & Contaminants. Part B, Surveillance
https://www.readbyqxmd.com/read/28065554/morphology-of-the-filtration-apparatus-of-three-planktivorous-fishes-and-relation-with-ingested-anthropogenic-particles
#6
France Collard, Bernard Gilbert, Gauthier Eppe, Laetitia Roos, Philippe Compère, Krishna Das, Eric Parmentier
Anthropogenic particles (APs), including microplastics, are ingested by a wide variety of marine organisms. Exposure of Clupeiformes (e.g. herrings, anchovies, sardines) is poorly studied despite their economic and ecological importance. This study aims to describe the morphology of the filtration apparatus of three wild-caught Clupeiformes (Sardina pilchardus, Clupea harengus and Engraulis encrasicolus) and to relate the results to ingested APs. Consequently, the species with the more efficient filtration apparatus will be more likely to ingest APs...
January 5, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28056794/mercury-exposure-and-risk-of-cardiovascular-disease-a-nested-case-control-study-in-the-predimed-prevention-with-mediterranean-diet-study
#7
Mary K Downer, Miguel A Martínez-González, Alfredo Gea, Meir Stampfer, Julia Warnberg, Miguel Ruiz-Canela, Jordi Salas-Salvadó, Dolores Corella, Emilio Ros, Montse Fitó, Ramon Estruch, Fernando Arós, Miquel Fiol, José Lapetra, Lluís Serra-Majem, Monica Bullo, Jose V Sorli, Miguel A Muñoz, Antonio García-Rodriguez, Mario Gutierrez-Bedmar, Enrique Gómez-Gracia
BACKGROUND: Substantial evidence suggests that consuming 1-2 servings of fish per week, particularly oily fish (e.g., salmon, herring, sardines) is beneficial for cardiovascular health due to its high n-3 polyunsaturated fatty acid content. However, there is some concern that the mercury content in fish may increase cardiovascular disease risk, but this relationship remains unclear. METHODS: The PREDIMED trial included 7477 participants who were at high risk for cardiovascular disease at baseline...
January 5, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28045355/climate-anchovy-and-sardine
#8
David M Checkley, Rebecca G Asch, Ryan R Rykaczewski
Anchovy and sardine populated productive ocean regions over hundreds of thousands of years under a naturally varying climate, and are now subject to climate change of equal or greater magnitude occurring over decades to centuries. We hypothesize that anchovy and sardine populations are limited in size by the supply of nitrogen from outside their habitats originating from upwelling, mixing, and rivers. Projections of the responses of anchovy and sardine to climate change rely on a range of model types and consideration of the effects of climate on lower trophic levels, the effects of fishing on higher trophic levels, and the traits of these two types of fish...
January 3, 2017: Annual Review of Marine Science
https://www.readbyqxmd.com/read/28040006/target-strength-distributions-of-pacific-sardine-schools-model-results-at-500%C3%A2-hz-to-10%C3%A2-khz
#9
Richard H Love, Joseph M Fialkowski, Thomas H Jagielo
Schools of fish can cause interference for long-range active sonars. The degree of interference depends heavily on the target strengths of the schools. However, there are few measurements and limited modeling of school target strengths in the frequency ranges of these sonars. During the summers of 2009 through 2013, a comprehensive set of measurements of the characteristics of Pacific sardine schools was collected off the west coast of the United States. This data set has enabled model estimates of the target strength distributions of these schools to be made at frequencies between 500 Hz and 10 kHz...
December 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27979297/assessing-the-quality-of-sardine-based-on-biogenic-amines-using-a-fuzzy-logic-model
#10
Davood Zare, H M Ghazali
There is an increasing concern about the quality and quality assessment procedures of seafood. In the present study, a model to assess fish quality based on biogenic amine contents using fuzzy logic model (FLM) is proposed. The fish used was sardine (Sardinella sp.) where the production of eight biogenic amines was monitored over fifteen days of storage at 0, 3 and 10°C. Based on the results, histamine, putrescine and cadaverine were selected as input variables and twelve quality grades were considered for quality of fish as output variables for the FLM...
April 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27973785/critical-role-of-different-immobilized-biocatalysts-of-a-given-lipase-in-the-selective-ethanolysis-of-sardine-oil
#11
Sonia Moreno-Perez, Daniela Flavia Machado Turati, Janaina Pires Borges, Pilar Luna, Francisco Javier Señorans, Jose M Guisan, Gloria Fernandez-Lorente
Different immobilized derivatives of two lipases were tested as catalysts of the synthesis of ethyl esters of omega-3 fatty acids during the ethanolysis of sardine oil in solvent-free systems at 25 °C. Lipases from Thermomyces lanuginosus (TLL) and Lecitase Ultra (a phospholipase with lipolytic activity) were studied. Lipases were adsorbed on hydrophobic Sepabeads C18 through the open active center and on an anion-exchanger Duolite with the active center exposed to the reaction medium. TLL-Sepabeads derivatives exhibit a high activity of 9 UI/mg of immobilized enzyme, and they are 20-fold more active than TLL-Duolite derivatives and almost 1000-fold more active than Lipozyme TL IM (the commercial derivative from Novozymes)...
December 21, 2016: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/27940316/proteomic-analysis-of-the-adaptative-response-of-mucor-spp-to-cheese-environment
#12
Stéphanie Morin-Sardin, Jean-Luc Jany, Sébastien Artigaud, Vianney Pichereau, Benoît Bernay, Emmanuel Coton, Stéphanie Madec
: In the cheese industry context, Mucor species exhibit an ambivalent behavior as some species are essential "technological" organisms of some cheeses while others can be spoiling agents. Previously, we observed that cheese "technological" species exhibited higher optimal growth rates on cheese related matrices than on synthetic media. This growth pattern combined with morphological differences raise the question of their adaptation to cheese. In this study, using a comparative proteomic approach, we described the metabolic pathways of three Mucor strains considered as "technological" or "contaminant" in the cheese environment (M...
February 10, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/27893826/macro-scale-patterns-in-upwelling-downwelling-activity-at-north-american-west-coast
#13
Romeo Saldívar-Lucio, Emanuele Di Lorenzo, Miguel Nakamura, Héctor Villalobos, Daniel Lluch-Cota, Pablo Del Monte-Luna
The seasonal and interannual variability of vertical transport (upwelling/downwelling) has been relatively well studied, mainly for the California Current System, including low-frequency changes and latitudinal heterogeneity. The aim of this work was to identify potentially predictable patterns in upwelling/downwelling activity along the North American west coast and discuss their plausible mechanisms. To this purpose we applied the min/max Autocorrelation Factor technique and time series analysis. We found that spatial co-variation of seawater vertical movements present three dominant low-frequency signals in the range of 33, 19 and 11 years, resembling periodicities of: atmospheric circulation, nodal moon tides and solar activity...
2016: PloS One
https://www.readbyqxmd.com/read/27861878/sequence-and-localization-of-an-ultraviolet-sws1-opsin-in-the-retina-of-the-japanese-sardine-sardinops-melanostictus-teleostei-clupeiformes
#14
T Miyazaki, S L Kondrashev, S Kasagi, K Mizusawa, A Takahashi
A full-length complementary (c)DNA encoding ultraviolet (UV)-sensitive opsin (sws1) was isolated from the retina of the Japanese sardine Sardinops melanostictus. The sws1 phylogenetic tree showed a sister group relationship with the Cypriniformes, following the ray-finned fish phylogeny. By expressing reconstituted opsin in vitro, it was determined that the maximum absorbance spectrum (λmax ) of sws1 is around 382 nm, being intermediate in position between two subtypes of sws1 pigment that are UV sensitive (λmax  = 355-380 nm) and violet sensitive (λmax  = 388-455 nm), which have been reported to date...
November 16, 2016: Journal of Fish Biology
https://www.readbyqxmd.com/read/27853538/body-reserves-mediate-trade-offs-between-life-history-traits-new-insights-from-small-pelagic-fish-reproduction
#15
Pablo Brosset, Josep Lloret, Marta Muñoz, Christian Fauvel, Elisabeth Van Beveren, Virginie Marques, Jean-Marc Fromentin, Frédéric Ménard, Claire Saraux
Limited resources in the environment prevent individuals from simultaneously maximizing all life-history traits, resulting in trade-offs. In particular, the cost of reproduction is well known to negatively affect energy investment in growth and maintenance. Here, we investigated these trade-offs during contrasting periods of high versus low fish size and body condition (before/after 2008) in the Gulf of Lions. Female reproductive allocation and performance in anchovy (Engraulis encrasicolus) and sardine (Sardina pilchardus) were examined based on morphometric historical data from the 1970s and from 2003 to 2015...
October 2016: Royal Society Open Science
https://www.readbyqxmd.com/read/27851805/evidence-that-the-migration-of-the-northern-subpopulation-of-pacific-sardine-sardinops-sagax-off-the-west-coast-of-the-united-states-is-age-based
#16
Jenny McDaniel, Kevin Piner, Hui-Hua Lee, Kevin Hill
Analysis of fish movements has been an important area of study for fisheries ecology and population dynamics for decades. Pacific sardine, Sardinops sagax, along the west coast of the United States exhibit a well-defined large-scale seasonal migration. Larger and older fish are found in the northern reaches of their range during summer and contract to southerly offshore areas for spawning during spring. Because of the close correlation between fish size and age it has not yet been determined if movements are size- or age-based...
2016: PloS One
https://www.readbyqxmd.com/read/27811797/the-genus-lernaeenicus-lesueur-copepoda-siphonostomatoida-pennellidae-in-india-a-checklist-with-notes-on-its-taxonomy-and-ecology
#17
Kuzhanthaivel Raja, Ayyapan Saravanakumar, Ayyaru Gopalakrishnan, Ramalingam Vijayakumar, Ui Wook Hwang, Balu Alagar Venmathi Maran
Members of the pennellid genus Lernaeenicus Lesueur, 1824 (Copepoda, Siphonostomatoida) have frequently been recorded from commercially important fishes collected along the coasts of India. Marine fish hosts from landing centres at Nagapattinam and Parangipettai Tamil Nadu, southeast coast of India, were examined for parasitic copepods between January 2011 and December 2013. A total of nine species including three unidentified species of Lernaeenicus were recorded: (1) L. alatus Rangnekar, 1962 from the Indo-Pacific king mackerel Scomberomorus guttatus (Bloch & Schneider, 1801), (2) L...
October 11, 2016: Zootaxa
https://www.readbyqxmd.com/read/27804059/collagen-extract-from-marine-finfish-scales-as-a-potential-mosquito-larvicide
#18
K Muthumari, M Anand, M Maruthupandy
Collagen is a peptide being utilized in medical, health care, nutrient and decorative industry. Marine fish scales are one of the good sources of collagen, which is extracted using the advanced enzymatic digestion method. Scales of Sardinella longiceps (Oil Sardine) have a high proportion of collagen. This product is well absorbed with broad adaptive values that encourage the inclusion of nutriments. In this paper, we have performed the isolation and characterization of collagen from S. longiceps fish scales...
December 2016: Protein Journal
https://www.readbyqxmd.com/read/27743330/biodiesel-from-plant-seed-oils-as-an-alternate-fuel-for-compression-ignition-engines-a-review
#19
C Vijayakumar, M Ramesh, A Murugesan, N Panneerselvam, D Subramaniam, M Bharathiraja
The modern scenario reveals that the world is facing energy crisis due to the dwindling sources of fossil fuels. Environment protection agencies are more concerned about the atmospheric pollution due to the burning of fossil fuels. Alternative fuel research is getting augmented because of the above reasons. Plant seed oils (vegetable oils) are cleaner, sustainable, and renewable. So, it can be the most suitable alternative fuel for compression ignition (CI) engines. This paper reviews the availability of different types of plant seed oils, several methods for production of biodiesel from vegetable oils, and its properties...
December 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27681454/angiotensin-i-converting-enzyme-inhibitory-activities-and-in-vivo-antihypertensive-effects-of-sardine-protein-hydrolysate
#20
Jiacheng Huang, Qianyue Liu, Bin Xue, Long Chen, Yong Wang, Shiyi Ou, Xichun Peng
In our previous study, an antihypertensive protein hydrolysate was prepared from sardine. This study aimed to investigate the composition of sardine protein hydrolysate (SPH) and it's in vivo antihypertensive effect. SPH was separated sequentially with ultrafiltration and size exclusion chromatography. Fractions with high angiotensin-I-converting enzyme (ACE) inhibitory activity were further analyzed with RP-HPLC and amino acids analysis. Then, SPH was individually oral administrated to spontaneously hypertensive rats (SHR) and normotensive wistar kyoto rats (WKY) for 4 wk...
September 28, 2016: Journal of Food Science
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