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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
#1
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...
January 15, 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
#2
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
#3
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
https://www.readbyqxmd.com/read/29315265/spatial-and-seasonal-dynamics-of-water-environmental-capacity-in-mountainous-rivers-of-the-southeastern-coast-china
#4
Qiankun Liu, Jingang Jiang, Changwei Jing, Jiaguo Qi
The south-east littoral is one of the most populous and developed regions in China suffering from serious water pollution problems, and the Xian-Jiang Basin in the mid of this region is among the most polluted watersheds. Critical information is needed but lacking for improved pollution control and water quality assessment, among which water environmental capacity (WEC) is the most important variable but is difficult to calculate. In this study, a one-dimensional water quality model combined with a matrix calculation algorithm was first developed and calibrated with in-situ observations in the Xian-Jiang basin...
January 9, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29234698/data-on-heavy-metal-and-magnetic-relationships-in-coastal-sediments-from-south-east-coast-of-tamilnadu-india
#5
R Ravisankar, N Harikrishnan, A Chandrasekaran, M Suresh Gandhi, R Alagarsamy
In this data, the heavy metal concentration and magnetic susceptibility in coastal sediment samples collected from Periyakalapet to Parangaipettai of East Coast of Tamilnadu using Energy Dispersive X-ray Fluorescence (EDXRF) technique and dual frequency susceptibility meter. We aimed to (i) determine the heavy metal concentration in the sediments from Periyakalapet to Parangaipettai of East Coast of Tamilnadu (ii) assess the magnetic mineral property of sediments (iii) study the correlation between heavy metal and magnetic susceptibility...
February 2018: Data in Brief
https://www.readbyqxmd.com/read/29216823/historical-isolation-and-contemporary-gene-flow-drive-population-diversity-of-the-brown-alga-sargassum-thunbergii-along-the-coast-of-china
#6
Jing-Jing Li, Zi-Min Hu, Zhong-Min Sun, Jian-Ting Yao, Fu-Li Liu, Pablo Fresia, De-Lin Duan
BACKGROUND: Long-term survival in isolated marginal seas of the China coast during the late Pleistocene ice ages is widely believed to be an important historical factor contributing to population genetic structure in coastal marine species. Whether or not contemporary factors (e.g. long-distance dispersal via coastal currents) continue to shape diversity gradients in marine organisms with high dispersal capability remains poorly understood. Our aim was to explore how historical and contemporary factors influenced the genetic diversity and distribution of the brown alga Sargassum thunbergii, which can drift on surface water, leading to long-distance dispersal...
December 7, 2017: BMC Evolutionary Biology
https://www.readbyqxmd.com/read/29161305/impact-of-austropuccinia-psidii-myrtle-rust-on-myrtaceae-rich-wet-sclerophyll-forests-in-south-east-queensland
#7
Geoff Pegg, Tamara Taylor, Peter Entwistle, Gordon Guymer, Fiona Giblin, Angus Carnegie
In April 2010, Austropuccinia psidii (formerly Puccinia psidii) was detected for the first time in Australia on the central coast of New South Wales. The fungus spread rapidly along the east coast and can now be found infecting vegetation in a range of native forest ecosystems with disease impacts ranging from minor leaf spots to severe shoot and stem blight and tree dieback. Localised extinction of some plant species has been recorded. In 2014, the impact of A. psidii was observed for the first time in a wet sclerophyll site with a rainforest understory, dominated by species of Myrtaceae, in Tallebudgera Valley, south east Queensland, Australia...
2017: PloS One
https://www.readbyqxmd.com/read/29135913/management-of-ciguatoxin-risk-in-eastern-australia
#8
Hazel Farrell, Shauna A Murray, Anthony Zammit, Alan W Edwards
Between 2014 and 2016, five cases of ciguatera fish poisoning (CFP), involving twenty four individuals, were linked to Spanish Mackerel (Scomberomorus commerson) caught in the coastal waters of the state of New South Wales (NSW) on the east coast of Australia. Previously, documented cases of CFP in NSW were few, and primarily linked to fish imported from other regions. Since 2015, thirteen individuals were affected across four additional CFP cases in NSW, linked to fish imported from tropical locations. The apparent increase in CFP in NSW from locally sourced catch, combined with the risk of CFP from imported fish, has highlighted several considerations that should be incorporated into risk management strategies to minimize CFP exposure for seafood consumers...
November 14, 2017: Toxins
https://www.readbyqxmd.com/read/29098591/historical-trends-of-trace-metals-in-muddy-deposit-along-the-zhejiang-coast-east-china-sea-response-to-economic-development-and-hypoxia
#9
Gang Xu, Jian Liu, Yanguang Dou, Jiandong Qiu, Lilei Chen
One sediment core spanning approximately 138 years was taken from the muddy deposits along the Zhejiang coast of the East China Sea, which is located in a hypoxic zone south of the Yangtze River estuary. When the sources of the trace metals in the core were analyzed, the three geochemical sources were identified as lithogenic, anthropogenic, and reductive deposits based on both principal component analysis and the ratios of terrigenous elements. The temporal distribution of the enrichment factor of copper in the sediment core matches the timeline of economic development and national policy in China...
November 3, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29065166/genetic-diversity-and-connectivity-in-the-east-african-giant-mud-crab-scylla-serrata-implications-for-fisheries-management
#10
Cyrus Rumisha, Filip Huyghe, Diary Rapanoel, Nemo Mascaux, Marc Kochzius
The giant mud crab Scylla serrata provides an important source of income and food to coastal communities in East Africa. However, increasing demand and exploitation due to the growing coastal population, export trade, and tourism industry are threatening the sustainability of the wild stock of this species. Because effective management requires a clear understanding of the connectivity among populations, this study was conducted to assess the genetic diversity and connectivity in the East African mangrove crab S...
2017: PloS One
https://www.readbyqxmd.com/read/29039708/detection-of-total-and-pathogenic-vibrio-parahaemolyticus-in-shellfish-growing-along-the-south-yellow-sea-and-the-east-china-sea
#11
Feng Han, Run-Run Gu, Xiao-Sheng Shen, Yuan-Ge Chen, Liang-Liang Tian, Wei-Feng Zhou, You-Qiong Cai
This study was conducted to monitor the densities of total and pathogenic Vibrio parahaemolyticus in 300 samples of nine shellfish species harvested from the coasts of the South Yellow Sea and the East China Sea (N 23° to 34°, E 116° to 124°), People's Republic of China, between May and October 2015. Total V. parahaemolyticus densities were measured, and V. parahaemolyticus isolates were biochemically identified with probes for the thermostable direct hemolysin gene (tdh) and the thermostable direct hemolysin-related hemolysin gene (trh)...
October 17, 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/29031561/a-century-of-introductions-by-coastal-sessile-marine-invertebrates-in-angola-south-east-atlantic-ocean
#12
Lueji Barros Pestana, Gustavo Muniz Dias, Antonio Carlos Marques
South Atlantic studies referring to non-native taxa are mostly restricted to Argentinean, Brazilian, and South African coasts. In this study we examined the literature to provide a list of sessile marine invertebrates along the Angolan coast, to infer its introduction status according to their biogeographical distribution and natural history. We reported 29 non-native and 7 cryptogenic species, a small number when compared to other South Atlantic regions of similar extension. Half of the non-native species were reported for Luanda...
October 11, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28994725/-he-s-the-number-one-thing-in-my-world-application-of-the-precede-proceed-model-to-explore-child-car-seat-use-in-a-regional-community-in-new-south-wales
#13
Kate Hunter, Lisa Keay, Kathleen Clapham, Julie Brown, Lynne E Bilston, Marilyn Lyford, Celeste Gilbert, Rebecca Q Ivers
We explored the factors influencing the use of age-appropriate car seats in a community with a high proportion of Aboriginal families in regional New South Wales. We conducted a survey and three focus groups with parents of children aged 3-5 years enrolled at three early learning centres on the Australian south-east coast. Survey data were triangulated with qualitative data from focus groups and analysed using the PRECEDE-PROCEED conceptual framework. Of the 133 eligible families, 97 (73%) parents completed the survey including 31% of parents who reported their children were Aboriginal...
October 10, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28959655/first-report-on-distribution-of-heavy-metals-and-proximate-analysis-in-marine-edible-puffer-fishes-collected-from-gulf-of-mannar-marine-biosphere-reserve-south-india
#14
Kaleshkumar Karunanidhi, Rajaram Rajendran, Dhinesh Pandurangan, Ganeshkumar Arumugam
In the present study, the heavy metal concentration in different organs (skin, tissue, liver, kidney, gill, intestine, and ovary) and muscle proximate composition were studied in marine edible puffer fishes Takifugu oblongus, Lagocephalus guentheri, Arothron hispidus, Chelonodon patoca and Arothron immaculatus collected from Mandapam fish landing centre, South east coast of India. Heavy metals (Cd, Cu, Pb & Zn) were analyzed in different organs for the above mentioned species. The heavy metals concentration ranges in fish organs of all the five species were Cu (0...
2017: Toxicology Reports
https://www.readbyqxmd.com/read/28943678/causes-of-accelerating-sea-level-on-the-east-coast-of-north-america
#15
James L Davis, Nadya T Vinogradova
The tide-gauge record from the North American East Coast reveals significant accelerations in sea level starting in the late twentieth century. The estimated post-1990 accelerations range from near zero to ∼0.3 mm yr(-2). We find that the observed sea level acceleration is well modeled using several processes: mass change in Greenland and Antarctica as measured by the Gravity Recovery and Climate Experiment satellites; ocean dynamic and steric variability provided by the GECCO2 ocean synthesis; and the inverted barometer effect...
May 28, 2017: Geophysical Research Letters
https://www.readbyqxmd.com/read/28926627/tiger-sharks-can-connect-equatorial-habitats-and-fisheries-across-the-atlantic-ocean-basin
#16
André S Afonso, Ricardo Garla, Fábio H V Hazin
Increasing our knowledge about the spatial ecology of apex predators and their interactions with diverse habitats and fisheries is necessary for understanding the trophic mechanisms that underlie several aspects of marine ecosystem dynamics and for guiding informed management policies. A preliminary assessment of tiger shark (Galeocerdo cuvier) population structure off the oceanic insular system of Fernando de Noronha (FEN) and the large-scale movements performed by this species in the equatorial Atlantic Ocean was conducted using longline and handline fishing gear and satellite telemetry...
2017: PloS One
https://www.readbyqxmd.com/read/28904747/linking-the-wintering-and-breeding-grounds-of-warblers-along-the-pacific-flyway
#17
David P L Toews, Julian Heavyside, Darren E Irwin
Long-distance migration is a behavior that is exhibited by many animal groups. The evolution of novel migration routes can play an important role in range expansions, ecological interactions, and speciation. New migration routes may evolve in response to selection in favor of reducing distance between breeding and wintering areas, or avoiding navigational barriers. Many migratory changes are likely to evolve gradually and are therefore difficult to study. Here, we attempt to connect breeding and wintering populations of myrtle warblers (Setophaga coronata coronata) to better understand the possible evolution of distinct migration routes within this species...
September 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28864695/pregnancy-physiology-pattern-prediction-study-4p-study-protocol-of-an-observational-cohort-study-collecting-vital-sign-information-to-inform-the-development-of-an-accurate-centile-based-obstetric-early-warning-score
#18
Fiona Kumar, Jude Kemp, Clare Edwards, Rebecca M Pullon, Lise Loerup, Andreas Triantafyllidis, Dario Salvi, Oliver Gibson, Stephen Gerry, Lucy H MacKillop, Lionel Tarassenko, Peter J Watkinson
INTRODUCTION: Successive confidential enquiries into maternal deaths in the UK have identified an urgent need to develop a national early warning score (EWS) specifically for pregnant or recently pregnant women to aid more timely recognition, referral and treatment of women who are developing life-threatening complications in pregnancy or the puerperium. Although many local EWS are in use in obstetrics, most have been developed heuristically. No current obstetric EWS has defined the thresholds at which an alert should be triggered using evidence-based normal ranges, nor do they reflect the changing physiology that occurs with gestation during pregnancy...
September 1, 2017: BMJ Open
https://www.readbyqxmd.com/read/28835269/insecticide-resistance-status-of-three-malaria-vectors-anopheles-gambiae-s-l-an-funestus-and-an-mascarensis-from-the-south-central-and-east-coasts-of-madagascar
#19
Jean-Desire Rakotoson, Christen M Fornadel, Allison Belemvire, Laura C Norris, Kristen George, Angela Caranci, Bradford Lucas, Dereje Dengela
BACKGROUND: Insecticide-based vector control, which comprises use of insecticide-treated bed nets (ITNs) and indoor residual spraying (IRS), is the key method to malaria control in Madagascar. However, its effectiveness is threatened as vectors become resistant to insecticides. This study investigated the resistance status of malaria vectors in Madagascar to various insecticides recommended for use in ITNs and/or IRS. METHODS: WHO tube and CDC bottle bioassays were performed on populations of Anopheles gambiae (s...
August 23, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28813498/phylogeography-of-bivalve-meretrix-petechialis-in-the-northwestern-pacific-indicated-by-mitochondrial-and-nuclear-dna-data
#20
Xiaoxuan Wang, Lingfeng Kong, Jun Chen, Akihiko Matsukuma, Qi Li
The marine clam Meretrix petechialis is an important economic shellfish species in Northwestern Pacific, but little is known about its phylogeographical pattern. Here, we analyzed 311 samples from 22 locations along the northwestern Pacific using combined profiling of one mitochondrial gene (the first subunit of cytochrome coxidase, COI) and one nuclear DNA marker (the internal transcribed spacer region 1, ITS-1) to investigate contemporary genetic structure and reconstruct phylogenetic history of this species...
2017: PloS One
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