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https://www.readbyqxmd.com/read/27893826/macro-scale-patterns-in-upwelling-downwelling-activity-at-north-american-west-coast
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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...
October 15, 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
#8
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
https://www.readbyqxmd.com/read/27644772/organochlorine-pesticides-in-canned-tuna-and-sardines-on-the-serbian-market
#9
Brankica Kartalović, Nikolina J Novakov, Željko Mihaljev, Jelena Petrović, Nadežda Prica, Jelena Babić, Miroslav A Ćirković
The aim of this study was to determine the level of organochlorine (OC) pesticides in 57 samples of canned tuna and 31 samples of canned sardines in vegetable oil, collected from supermarkets in Serbia. OC pesticides α-HCH, β-HCH, δ-HCH, dichlorodiphenyltrichloroethane (DDT), DDE, DDD, dielderin, endosulfane I, endosulfane II, endosulan sulfate, endrin, endrin ketone, heptachlor, heptachlor epoxide, lindane, aldrin, metoxichlor, cis-chlordane and trans-chlordane were determined using a GS-MS method. The highest concentrations (µg kg(-1), arithmetic means) in canned tuna were for δ-HCH (60...
December 2016: Food Additives & Contaminants. Part B, Surveillance
https://www.readbyqxmd.com/read/27619657/validation-of-the-biofish-300-his-enzymatic-biosensor-for-the-detection-of-histamine-in-fishery-products
#10
Sandra Salleres, Irune González, Alai Arantzamendi, Roberto González, Sonia Maza, Arrate Jaureguibeitia, James M Hungerford, Christina A DeWitt, Ronald A Benner
The Biofish-300 HIS method is a simple, reliable, and specific enzymatic biosensor for the detection of histamine. This technology is highly specific and selective and allows quantification of histamine in fishery products (fresh/frozen and processed) in a short time frame (2-3 min). Histamine in raw tuna, raw mackerel, raw sardine, raw anchovy, boiled tuna, canned tuna in water, canned tuna in oil, canned mackerel in tomato sauce, canned pickled sardine, and canned salted anchovy was analyzed using a water-based extract...
September 2016: Journal of AOAC International
https://www.readbyqxmd.com/read/27616166/integrative-approach-revises-the-frequently-misidentified-species-of-sardinella-clupeidae-of-the-indo-west-pacific-ocean
#11
N Stern, B Rinkevich, M Goren
To deal with the difficulties of species differentiation and delimitation among the commercially important sardines from the genus Sardinella, an integrative approach was adopted, incorporating traditional taxonomy with four DNA markers (coI, cytb, 16s and nuclear rag2). Combining these methodologies has enabled a thorough re-description of three of the most common species of Sardinella of the Indo-west Pacific Ocean: white sardinella Sardinella albella, fringescale sardinella Sardinella fimbriata and the goldstripe sardinella Sardinella gibbosa, as well as a description of a new species, Gon's sardinella Sardinella goni, from the island of Boracay, Philippines...
September 12, 2016: Journal of Fish Biology
https://www.readbyqxmd.com/read/27580258/quantification-of-environmental-dna-edna-shedding-and-decay-rates-for-three-marine-fish
#12
Lauren M Sassoubre, Kevan M Yamahara, Luke D Gardner, Barbara A Block, Alexandria B Boehm
Analysis of environmental DNA (eDNA) to identify macroorganisms and biodiversity has the potential to significantly augment spatial and temporal biological monitoring in aquatic ecosystems. Current monitoring methods relying on the physical identification of organisms can be time consuming, expensive, and invasive. Measuring eDNA shed from organisms provides detailed information on the presence and abundance of communities of organisms. However, little is known about eDNA shedding and decay in aquatic environments...
October 4, 2016: Environmental Science & Technology
https://www.readbyqxmd.com/read/27540048/draft-genome-sequence-of-aeromonas-dhakensis-strain-f2s2-1-isolated-from-the-skin-surface-of-an-indian-oil-sardine-sardinella-longiceps
#13
Mohan Nadiga, V V Vaidyanathan, Thangavelu Thayumanavan
Draft genome sequencing of Aeromonas dhakensis strain F2S2-1, isolated from the skin surface of an Indian oil sardine (Sardinella longiceps), has been carried out. The draft genome was roughly 4.7 Mb in size with 61.7% G+C content. Annotation of the genome yielded 4,337 genes coding for proteins, tRNAs, and rRNAs. Annotation also revealed the presence of 52 genes linked to resistance to antibiotics/toxic compounds. Pathway analysis revealed the presence of novobiocin biosynthetic genes and genes for biosynthesis of a siderophore group on nonsynthetic peptides...
2016: Genome Announcements
https://www.readbyqxmd.com/read/27534846/fish-consumption-pattern-among-adults-of-different-ethnics-in-peninsular-malaysia
#14
Nurul Izzah Ahmad, Wan Rozita Wan Mahiyuddin, Tengku Rozaina Tengku Mohamad, Cheong Yoon Ling, Siti Fatimah Daud, Nasriyah Che Hussein, Nor Aini Abdullah, Rafiza Shaharudin, Lokman Hakim Sulaiman
BACKGROUND: Understanding different patterns of fish consumption is an important component for risk assessment of contaminants in fish. A few studies on food consumption had been conducted in Malaysia, but none of them focused specifically on fish consumption. The objectives of this study were to document the meal pattern among three major ethnics in Malaysia with respect to fish/seafood consumption, identify most frequently consumed fish and cooking method, and examine the influence of demographic factors on pattern of fish consumption among study subjects...
2016: Food & Nutrition Research
https://www.readbyqxmd.com/read/27528087/synthesis-of-structured-triacylglycerols-enriched-in-n-3-fatty-acids-by-immobilized-microbial-lipase
#15
Maria Elisa Melo Branco de Araújo, Paula Renata Bueno Campos, Thiago Grando Alberto, Fabiano Jares Contesini, Patrícia de Oliveira Carvalho
The search for new biocatalysts has aroused great interest due to the variety of micro-organisms and their role as enzyme producers. Native lipases from Aspergillus niger and Rhizopus javanicus were used to enrich the n-3 long-chain polyunsaturated fatty acids content in the triacylglycerols of soybean oil by acidolysis with free fatty acids from sardine oil in solvent-free media. For the immobilization process, the best lipase/support ratios were 1:3 (w/w) for Aspergillus niger lipase and 1:5 (w/w) for Rhizopus javanicus lipase using Amberlite MB-1...
October 2016: Brazilian Journal of Microbiology: [publication of the Brazilian Society for Microbiology]
https://www.readbyqxmd.com/read/27441550/patterns-of-distribution-and-spatial-indicators-of-ecosystem-change-based-on-key-species-in-the-southern-benguela
#16
Katherine E Watermeyer, Laurence Hutchings, Astrid Jarre, Lynne J Shannon
Several commercially and ecologically important species in the southern Benguela have undergone southward and eastward shifts in their distributions over previous decades, most notably the small pelagic fish sardine Sardinops sagax and anchovy Engraulis encrasicolus. Understanding these changes and their implications is essential in implementing an ecosystem approach to fisheries in the southern Benguela and attempting to appreciate the potential impacts of future environmental change. To investigate possible impacts of these shifts at an ecosystem level, distribution maps for before (1985-1991), during (1997-2000) and after (2003-2008) the shift in small pelagic fish were constructed for 14 key species from catch and survey data, and used to calculate spatial indicators including proportion east and west of Cape Agulhas, relative overlap in biomass and area, index of diversity, connectivity...
2016: PloS One
https://www.readbyqxmd.com/read/27329621/control-of-linepithema-micans-hymenoptera-formicidae-and-eurhizococcus-brasiliensis-hemiptera-margarodidae-in-vineyards-using-toxic-baits
#17
Aline Nondillo, Simone Andzeiewski, Flávio Bello Fialho, Odair Correa Bueno, Marcos Botton
Linepithema micans (Forel) (Hymenoptera: Formicidae) is the main ant species responsible for dispersal of Eurhizococcus brasiliensis (Wille) (Hemiptera: Margarodidae), a root scale that damages grapevines in southern Brazil. The effects of different formulations of toxic baits based on boric acid and hydramethylnon to control L. micans and E. brasiliensis were evaluated. Toxic baits with boric acid (1.0%) mixed in different concentrations of inverted sugar (20%, 30%, and 40%), and hydramethylnon, mixed with sardines (paste), cassava flour and peanut, brown sugar (sucrose), or sardine oil-based gel, were evaluated in a greenhouse and in the field...
August 2016: Journal of Economic Entomology
https://www.readbyqxmd.com/read/27293764/small-pelagics-in-a-changing-ocean-biological-responses-of-sardine-early-stages-to-warming
#18
Filipa Faleiro, Marta Pimentel, Maria Rita Pegado, Regina Bispo, Ana Rita Lopes, Mário S Diniz, Rui Rosa
Small pelagic fishes are known to respond rapidly to changes in ocean climate. In this study, we evaluate the effects of future environmental warming (+2°C) during the early ontogeny of the European sardine, Sardina pilchardus. Warming reduced the survival of 30-day-old larvae by half. Length at hatching increased with temperature as expected, but no significant effect was observed on the length and growth at 30 days post-hatching. Warming did not significantly affect the thermal tolerance of sardine larvae, even though the mean lethal temperature increased by 1°C...
2016: Conservation Physiology
https://www.readbyqxmd.com/read/27283176/synanthropy-of-sarcophagidae-diptera-in-southeastern-brazil
#19
C R de Souza, C J Von Zuben
Sarcophagidae (Diptera) are potential vectors of several pathogens. They are also very important in forensic entomology, providing basic information on the circumstances of death. The objective of this study was to determine the synanthropic index of adult Sarcophagidae collected in Rio Claro, state of São Paulo, southeastern Brazil. Sampling occurred between September 2009 and August 2010. Traps baited with sardines, beef liver, or minced meat were set for five consecutive days per month in three distinct ecological areas representing urban, rural, and forest environments...
June 9, 2016: Neotropical Entomology
https://www.readbyqxmd.com/read/27241725/development-of-a-database-of-the-fluoride-content-of-selected-drinks-and-foods-in-the-uk
#20
F Vida Zohoori, Anne Maguire
It is important to monitor systemic fluoride (F) intake from foods, drinks and inadvertent toothpaste ingestion in order to minimise the risk of dental fluorosis while maximising caries prevention. In the UK, an F database containing the F content of commercially available foods and drinks was compiled from 518 products analysed using an acid-diffusion method and F-ion-selective electrode. The individual products analysed ranged from <0.01 µg F/100 g for butter/margarine (miscellaneous foods group) to 1,054...
2016: Caries Research
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