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https://www.readbyqxmd.com/read/29135913/management-of-ciguatoxin-risk-in-eastern-australia
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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
#9
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
#10
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
#11
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
#12
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
#13
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
https://www.readbyqxmd.com/read/28806635/oryong-501-sinking-incident-in-the-bering-sea-international-dvi-cooperation-in-the-asia-pacific
#14
Nak-Eun Chung, Anton Castilani, Wilfredo E Tierra, Philip Beh, Mohd Shah Mahmood
On December 1st, 2014, the sinking of Oryong 501 occurred in the Bering Sea off the east coast of Russia. A total of 60 crew members, including 35 Indonesians, 13 Filipinos, 11 South Koreans and 1 Russian inspector were on board out of which only seven survived. Through an international rescue operation, the dead bodies of 27 were found and the remaining 26 crew are still missing. After transferring the dead bodies to the Busan Harbor in South Korea, the operation to identify the deceased began involving DVI teams from three countries: Korea, Indonesia and the Philippines...
September 2017: Forensic Science International
https://www.readbyqxmd.com/read/28757045/efficacy-of-potential-phage-cocktails-against-vibrio-harveyi-and-closely-related-vibrio-species-isolated-from-shrimp-aquaculture-environment-in-the-south-east-coast-of-india
#15
Nattan Stalin, Pappu Srinivasan
A diverse set of novel phages infecting the marine pathogenic Vibrio harveyi was isolated from shrimp aquaculture environments in the south east coast of India. Based on initial screening, three phages with a broad host range revealed that the growth inhibition of phage is relatively specific to V. harveyi. They were also able to infect V. alginolyticus and V. parahemolyticus that belonged to the Harveyi clade species from shrimp pond and sea coast environment samples. However, the impact of these phages on their host bacterium are well understood; a one-step growth curve experiment and transmission electron microscope (TEM) revealed three phages grouped under the Myoviridae (VHM1 and VHM2); Siphoviridae (VHS1) family...
August 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28752775/significant-genetic-differentiation-of-gobiopterus-lacustris-a-newly-recorded-transparent-goby-in-china
#16
Zhong-Duo Wang, Jian Liao, Cheng-Qin Huang, Shui-Sheng Long, Shun Zhang, Yu-Song Guo, Li Liu, Chu-Wu Liu
In our recent survey, the transparent small Lacustrine goby, Gobiopterus lacustris had reported as the endemic species of Luzon, Philippines, was identified as an abundant species in mangroves of Leizhou Peninsula, China. Here, high diversity and significant differentiation of five sites of samples representing the west and east populations were revealed by mitochondrial DNA sequences. Five haplotypes of 56 cytochrome oxidase subunit I (Cox1) with the lengths of 623 base pairs (bp) have the high pairwise identity (>98...
July 28, 2017: Mitochondrial DNA. Part A. DNA Mapping, Sequencing, and Analysis
https://www.readbyqxmd.com/read/28752231/parasites-and-pathological-conditions-in-the-edible-oyster-crassostrea-madrasensis-preston-from-the-east-and-west-coasts-of-india
#17
G Suja, V Kripa, K Sunil Mohamed, J Lijo, K G Mini, N K Sanil
A detailed pathological survey was carried out on the commercially important edible oyster, Crassostrea madrasensis (Preston), from two distinct coastal/brackish water ecosystems of south India. Samples were collected twice a year during wet and dry seasons from 2009 to 2012. Bacterial colonies in the form of prokaryotic inclusions, protozoans (Perkinsus beihaiensis, Nematopsis sp. and ciliates Sphenophrya sp. and Stegotricha sp.), metazoans (trematodes, turbellaria, cestodes and crustaceans) and shell parasites (Polydora spp...
July 27, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28728131/the-distribution-of-organochlorine-pesticides-in-sediments-from-isimangaliso-wetland-park-ecological-risks-and-implications-for-conservation-in-a-biodiversity-hotspot
#18
Archibold Buah-Kwofie, Marc S Humphries
The iSimangaliso Wetland Park World Heritage site, located on the east coast of South Africa, spans ∼3300 km(2) and constitutes the largest protected estuarine environment for hippopotami, crocodiles and aquatic birds in Africa. Given the ecological importance of this site and continued use of organochlorine pesticides (OCPs) in the region, this study focused on the nature, distribution and potential sources of organochlorine contamination within iSimangaliso Wetland Park. OCPs were widely distributed in surface sediment samples obtained from the four main Ramsar wetland systems within the park (Lake St Lucia, Mkhuze, Lake Sibaya and Kosi Bay)...
October 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28720331/a-novel-antihypertension-agent-sargachromenol-d-from-marine-brown-algae-sargassum-siliquastrum-exerts-dual-action-as-an-l-type-ca-2-channel-blocker-and-endothelin-a-b2-receptor-antagonist
#19
Byong-Gon Park, Woon-Seob Shin, Sangtae Oh, Gab-Man Park, Nam Ik Kim, Seokjoon Lee
We isolated the novel vasoactive marine natural products, (5E,10E)-14-hydroxy-2,6,10-trimethylpentadeca-5,10-dien-4-one (4) and sargachromenol D (5), from Sargassum siliquastrum collected from the coast of the East Sea in South Korea by using activity-guided HPLC purification. The compounds effectively dilated depolarization (50mMK(+))-induced basilar artery contraction with EC50 values of 3.52±0.42 and 1.62±0.63μM, respectively, but only sargachromenol D (5) showed a vasodilatory effect on endothelin-1 (ET-1)-induced basilar artery contraction (EC50=9...
September 1, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/28712085/long-term-spatiotemporal-trends-and-health-risk-assessment-of-oyster-arsenic-levels-in-coastal-waters-of-northern-south-china-sea
#20
Xuefeng Wang, Lifei Wang, Xiaoping Jia, Donald A Jackson
Long-term spatiotemporal trends and health risk assessment of oyster arsenic levels in the coastal waters of northern South China Sea were investigated in order to help improve the quality and safety control and sustainable aquaculture for mollusks in China. Cultured oysters (Crassostrea rivularis) collected from the waters of 23 bays, harbors, and estuaries along the coast of northern South China Sea from 1989 to 2012 were examined for spatial patterns and long-term temporal trends of oyster arsenic levels...
September 2017: Environmental Science and Pollution Research International
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