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https://www.readbyqxmd.com/read/29736349/salt-marsh-sediment-bacterial-communities-maintain-original-population-structure-after-transplantation-across-a-latitudinal-gradient
#1
Angus Angermeyer, Sarah C Crosby, Julie A Huber
Dispersal and environmental selection are two of the most important factors that govern the distributions of microbial communities in nature. While dispersal rates are often inferred by measuring the degree to which community similarity diminishes with increasing geographic distance, determining the extent to which environmental selection impacts the distribution of microbes is more complex. To address this knowledge gap, we performed a large reciprocal transplant experiment to simulate the dispersal of US East Coast salt marsh Spartina alterniflora rhizome-associated microbial sediment communities across a latitudinal gradient and determined if any shifts in microbial community composition occurred as a result of the transplantation...
2018: PeerJ
https://www.readbyqxmd.com/read/29735041/physico-chemical-colorimetric-rheological-parameters-and-chemometric-discrimination-of-the-origin-of-mugil-cephalus-roes-during-the-manufacturing-process-of-bottarga
#2
Marco Caredda, Margherita Addis, Massimo Pes, Nicola Fois, Gabriele Sanna, Giovanni Piredda, Gavino Sanna
The aim of this work was to measure the physico-chemical and the colorimetric parameters of ovaries from Mugil cephalus caught in the Tortolì lagoon (South-East coast of Sardinia) along the steps of the manufacturing process of Bottarga, together with the rheological parameters of the final product. A lowering of all CIELab coordinates (lightness, redness and yellowness) was observed during the manufacture process. All CIELab parameters were used to build a Linear Discriminant Analysis (LDA) predictive model able to determine in real time if the roes had been subdued to a freezing process, with a success in prediction of 100%...
June 2018: Food Research International
https://www.readbyqxmd.com/read/29728624/a-regional-scale-approach-to-assessing-current-and-potential-future-exposure-to-tidal-inundation-in-different-types-of-estuaries
#3
David J Hanslow, Bradley D Morris, Edwina Foulsham, Michael A Kinsela
Broad scale assessments of impacts associated with sea level rise have mainly been undertaken using ocean water level data from tide gauges located in harbours and ports assuming that these can be applied directly in mapping inundation throughout estuaries. On many coasts, however, exposure to sea level rise comes about through inundation adjacent to rivers and estuaries, in many instances far from the ocean. In this study, we examine the potential impacts of sea level rise within the diverse estuaries of South East Australia...
May 4, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29710655/demographics-of-the-zooxanthellate-coral-oculina-patagonica-along-the-mediterranean-iberian-coast-in-relation-to-environmental-parameters
#4
Eduard Serrano, Marta Ribes, Rafel Coma
Marine ecosystems are threatened by cumulative human-related impacts that cause structural and functional alterations. In the Mediterranean Sea, the zooxanthellate coral Oculina patagonica (Scleractinia, Oculinidae) can turn algal forests into coral-dominated ecosystems and provides a case study for examining how zooxanthellate corals can affect the structure of algal-dominated shallow-water rocky ecosystems in temperate areas. Our goal was to provide a quantitative baseline assessment of O. patagonica demographics along ~1300km of the Mediterranean Iberian coast and relate them to environmental parameters...
April 16, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29657825/diversity-of-late-neogene-monachinae-carnivora-phocidae-from-the-north-atlantic-with-the-description-of-two-new-species
#5
Leonard Dewaele, Carlos Mauricio Peredo, Pjotr Meyvisch, Stephen Louwye
While the diversity of 'southern seals', or Monachinae, in the North Atlantic realm is currently limited to the Mediterranean monk seal, Monachus monachus , their diversity was much higher during the late Miocene and Pliocene. Although the fossil record of Monachinae from the North Atlantic is mainly composed of isolated specimens, many taxa have been erected on the basis of fragmentary and incomparable specimens. The humerus is commonly considered the most diagnostic postcranial bone. The research presented in this study limits the selection of type specimens for different fossil Monachinae to humeri and questions fossil taxa that have other types of bones as type specimens, such as for Terranectes parvus ...
March 2018: Royal Society Open Science
https://www.readbyqxmd.com/read/29644448/total-mercury-methyl-mercury-and-heavy-metal-concentrations-in-hyeongsan-river-and-its-tributaries-in-pohang-city-south-korea
#6
Mark Xavier Bailon, Anneschel Sheehan David, Yeongeon Park, Eunhee Kim, Yongseok Hong
Heavy metal contamination in aquatic systems is a big problem in many areas around the world. In 2016, high mercury concentrations were reported in bivalves (Corbicula leana) and sediments near the confluence of the Hyeongsan River and Chilseong Creek located in Pohang, a steel industrial city in the south-east coast of the Korean peninsula. Given that both the Chilseong and Gumu creeks run through the Pohang industrial complex and ultimately flow to the Hyeongsan River, it is imperative to determine if the industrial effluents have any impact on the mercury contamination in these two streams and the Hyeongsan River...
April 11, 2018: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29618489/beyond-asian-specific-east-and-southeast-asian-races-or-ethnicities-associated-with-jaundice-readmission
#7
Michael G Bentz, Nancy Carmona, Manavi M Bhagwat, Lindsay M Thimmig, Jamal Saleh, Uchechukwu Eke, Jolene Kokroko, Rand Dadasovich, Brooke Rice, Michael D Cabana
OBJECTIVES: Clinical practice guidelines have recognized "Asian" and "East Asian" as risk factors for newborn jaundice and readmission. We sought to identify more detailed and specific, parent-identified races or ethnicities associated with jaundice readmission. METHODS: We conducted a case control study of 653 newborn infants born (2014-2016) at a West-Coast, urban hospital to examine specific parent-described races or ethnicities that are associated with newborn hospital readmissions for hyperbilirubinemia...
April 4, 2018: Hospital Pediatrics
https://www.readbyqxmd.com/read/29571389/elemental-concentration-and-potential-ecological-risk-assessment-of-reef-associated-surface-sediments-of-appa-island-gulf-of-mannar-biosphere-reserve-southeast-coast-of-india
#8
P Saravanan, S Krishnakumar, Judith D Silva, D Pradhap, A Vidyasakar, K Radhakrishnan, Prince S Godson, K Arumugam, N S Magesh
Thirty three surface sediments were collected for the present study to assess the elemental concentration and its associated ecological risk in the reef associated surface sediments, Appa Island, Gulf of Mannar Biosphere Reserve, South east coast of India. The distribution of calcium carbonate in the reef sediments is controlled by coral debris and shell fragments whereas the Organic matter (OM) content are chiefly derived from mangroves and sea grasses. The circulation of trace elements and Fe, Mn are controlled by the fluvial process and re-suspended sediments...
March 2018: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/29571384/spatial-and-vertical-distribution-of-radiocesium-in-seawater-of-the-east-china-sea
#9
Lijun Zhao, Dantong Liu, Jinlong Wang, Jinzhou Du, Xiaolin Hou, Yifei Jiang
The137 Cs activity in surface water of the East China Sea (ECS) was 0.66-1.36 Bq m-3 during May of 2011. The low activities were observed in the Changjiang Estuary and Zhejiang-Fujian coast and high activities were observed in the south offshore and Kuroshio Current pathway, suggesting that the influence from the current system in the ECS. The134 Cs were undetectable (<0.03 Bq m-3 ) and the contribution of the Fukushima accident to ECS is estimated to be below 3%; hence it is negligible during the investigation period...
March 2018: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/29561884/life-in-a-rock-pool-radiation-and-population-genetics-of-myxozoan-parasites-in-hosts-inhabiting-restricted-spaces
#10
Pavla Bartošová-Sojková, Alena Lövy, Cecile C Reed, Martina Lisnerová, Tereza Tomková, Astrid S Holzer, Ivan Fiala
INTRODUCTION: Intertidal rock pools where fish and invertebrates are in constant close contact due to limited space and water level fluctuations represent ideal conditions to promote life cycles in parasites using these two alternate hosts and to study speciation processes that could contribute to understanding the roles of parasitic species in such ecosystems. MATERIAL AND METHODS: Gall bladder and liver samples from five clinid fish species (Blenniiformes: Clinidae) were morphologically and molecularly examined to determine the diversity, prevalence, distribution and host specificity of Ceratomyxa parasites (Cnidaria: Myxozoa) in intertidal habitats along the coast of South Africa...
2018: PloS One
https://www.readbyqxmd.com/read/29560833/meteorological-factors-and-respiratory-syncytial-virus-seasonality-in-subtropical-australia
#11
C Morley, K Grimwood, S Maloney, R S Ware
Evidence is emerging regarding the influence of meteorological factors on seasonal respiratory syncytial virus outbreaks. Data however, are limited for subtropical regions, especially in the southern hemisphere. We examined whether meteorological data (daily minimum and maximum temperatures, rainfall, relative humidity, dew point, daily global solar exposure) and tourist numbers were associated with the incidence of RSV in children aged <5 years for the Gold Coast region of South-East Queensland, Australia (latitude 28...
March 21, 2018: Epidemiology and Infection
https://www.readbyqxmd.com/read/29541668/data-on-molluscan-shells-in-parts-of-nellore-coast-southeast-coast-of-india
#12
B Lakshmanna, N Jayaraju, T Lakshmi Prasad, G Sreenivasulu, K Nagalakshmi, M Pramod Kumar, M Madakka
X-ray diffraction (XRD), Scanning Electron Microscope-Energy Dispersive Spectroscopy (SEM-EDS), and Fourier Transform Infrared Spectroscopy (FT-IR), were applied to analyze the organic matrix of two Molluscan shells . The Mollusca shells are mineral structure and calcium carbonate crystallized as aragonite. The FT-IR spectra showed Alkyl Halide, Alkanes, Alcohols, Amides, Aromatic, and Hydroxyl groups in the organic matrix of the whole (organic and mineral) Molluscan shells. SEM images of particles of the two Molluscan shells at different magnifications were taken...
February 2018: Data in Brief
https://www.readbyqxmd.com/read/29534988/genetic-diversity-and-population-structure-of-theileria-parva-in-south-sudan
#13
Diaeldin A Salih, Joram M Mwacharo, Roger Pelle, Moses N Njahira, David O Odongo, Mary N Mbole-Kariuki, Wani L Marcellino, Agol K Malak, Henary Kiara, Abdel Rahim M El Hussein, Richard P Bishop, Robert A Skilton
Theileria parva is a parasitic protozoan that causes East Coast fever (ECF), an economically important disease of cattle in eastern, central and southern Africa. In South Sudan, ECF is considered a major constraint for livestock development in regions where the disease is endemic. To obtain insights into the dynamics of T. parva in South Sudan, population genetic analysis was performed. Out of the 751 samples included in this study, 178 blood samples were positive for T. parva by species-specific PCR, were collected from cattle from four regions in South Sudan (Bor = 62; Juba = 45; Kajo keji = 41 and Yei = 30) were genotyped using 14 microsatellite markers spanning the four chromosomes...
March 3, 2018: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/29528438/assessing-the-risk-of-establishment-of-rhagoletis-cerasi-diptera-tephritidae-in-the-united-states-and-globally
#14
Tewodros T Wakie, Wee L Yee, Lisa G Neven
The European cherry fruit fly, Rhagoletis cerasi (L.) (Diptera: Tephritidae), is a highly destructive pest of cherries (Prunus spp.) (Rosaceae) in Europe and Asia. In 2016, R. cerasi was detected in Ontario, Canada, and in 2017 in New York State, USA, the first records of this pest in North America. The initial detections in Canada caused concern for the major cherry-growing states of Michigan, Washington, Oregon, and California in the United States. Establishment of R. cerasi in the United States could restrict cherry exports to other markets and increase costs needed for fly control, but it is unknown if R...
March 8, 2018: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29515091/biogeography-of-the-shimba-hills-ecosystem-herpetofauna-in-kenya
#15
Patrick K Malonza, David M Mulwa, Joash O Nyamache, Georgina Jones
The Shimba Hills ecosystem along the south coast of Kenya is a key East African biodiversity hotspot. Historically, it is biogeographically assignable to the East African coastal biome. We examined the current Shimba Hills herpetofauna and their zoogeographical affinities to the coastal forests and nearby Eastern Arc Mountains biodiversity hotspots. The key studied sites included the Shimba Hills National Reserve, forest reserves, Kaya forests, and adjacent private land. Data on herpetofaunal richness were obtained from recent field surveys, literature, and specimens held at the National Museums of Kenya, Herpetology Section Collection, Nairobi...
March 18, 2018: Zoological Research
https://www.readbyqxmd.com/read/29465770/cookie-cutter-shark-isistius-spp-predation-upon-different-tuna-species-from-the-south-western-atlantic-ocean
#16
Y V Niella, L A G Duarte, V R Bandeira, O Crespo, D Beare, F H V Hazin
The predation of cookie-cutter sharks Isistius spp. upon the early life stages of yellowfin tuna Thunnus albacares, skipjack tuna Katsuwonus pelamis and little tunny Euthynnus alletteratus are described. New evidence suggesting a connection between commercial fishing and predation by Isistius sp. is presented, with these sharks biting tunas hooked in surface waters during daylight. The healing patterns of the wounds made by the sharks are described in detail and, although such damage is known to negatively influence market price elsewhere, it is not the case on the south-east Brazilian coast...
April 2018: Journal of Fish Biology
https://www.readbyqxmd.com/read/29421101/tracing-the-source-of-marine-debris-on-the-beaches-of-northern-new-south-wales-australia-the-bottles-on-beaches-program
#17
Stephen D A Smith, Kelsey Banister, Nicola Fraser, Robert J Edgar
Identifying the source of marine plastic pollution accumulating on ocean beaches is often difficult as unidentifiable fragments of plastic usually predominate. In this study, we surveyed plastic bottles as a relatively identifiable subset of plastics on 30km of beach along a 200-km section of the north coast of New South Wales, Australia. Source and product type (contents) were determined using barcodes, inscriptions/embossing, or bottle shape and characteristics. Country of origin and product type could be determined for two-thirds of the 694 bottles found...
January 2018: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/29334689/-stick-with-your-own-kind-or-hang-with-the-locals-implications-of-shoaling-strategy-for-tropical-reef-fish-on-a-range-expansion-frontline
#18
Shannen M Smith, Rebecca J Fox, David J Booth, Jennifer M Donelson
Range shifts of tropical marine species to temperate latitudes are predicted to increase as a consequence of climate change. To date, the research focus on climate-mediated range shifts has been predominately dealt with the physiological capacity of tropical species to cope with the thermal challenges imposed by temperate latitudes. Behavioural traits of individuals in the novel temperate environment have not previously been investigated, however, they are also likely to play a key role in determining the establishment success of individual species at the range-expansion forefront...
April 2018: Global Change Biology
https://www.readbyqxmd.com/read/29320572/international-migration-patterns-of-red-throated-loons-gavia-stellata-from-four-breeding-populations-in-alaska
#19
COMPARATIVE STUDY
Sarah E McCloskey, Brian D Uher-Koch, Joel A Schmutz, Thomas F Fondell
Identifying post-breeding migration and wintering distributions of migratory birds is important for understanding factors that may drive population dynamics. Red-throated Loons (Gavia stellata) are widely distributed across Alaska and currently have varying population trends, including some populations with recent periods of decline. To investigate population differentiation and the location of migration pathways and wintering areas, which may inform population trend patterns, we used satellite transmitters (n = 32) to describe migration patterns of four geographically separate breeding populations of Red-throated Loons in Alaska...
2018: PloS One
https://www.readbyqxmd.com/read/29315301/population-genomics-of-mesolithic-scandinavia-investigating-early-postglacial-migration-routes-and-high-latitude-adaptation
#20
Torsten Günther, Helena Malmström, Emma M Svensson, Ayça Omrak, Federico Sánchez-Quinto, Gülşah M Kılınç, Maja Krzewińska, Gunilla Eriksson, Magdalena Fraser, Hanna Edlund, Arielle R Munters, Alexandra Coutinho, Luciana G Simões, Mário Vicente, Anders Sjölander, Berit Jansen Sellevold, Roger Jørgensen, Peter Claes, Mark D Shriver, Cristina Valdiosera, Mihai G Netea, Jan Apel, Kerstin Lidén, Birgitte Skar, Jan Storå, Anders Götherström, Mattias Jakobsson
Scandinavia was one of the last geographic areas in Europe to become habitable for humans after the Last Glacial Maximum (LGM). However, the routes and genetic composition of these postglacial migrants remain unclear. We sequenced the genomes, up to 57× coverage, of seven hunter-gatherers excavated across Scandinavia and dated from 9,500-6,000 years before present (BP). Surprisingly, among the Scandinavian Mesolithic individuals, the genetic data display an east-west genetic gradient that opposes the pattern seen in other parts of Mesolithic Europe...
January 2018: PLoS Biology
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