319 results match your criteria: "National Marine Science Centre[Affiliation]"

[This corrects the article DOI: 10.1093/conphys/coz042.].

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Author Correction: Tidal wetland resilience to sea level rise increases their carbon sequestration capacity in United States.

Nat Commun

December 2019

State Key Laboratory of Estuarine and Coastal Research and Institute of Eco-Chongming, East China Normal University, Shanghai, 201100, P. R. China.

An amendment to this paper has been published and can be accessed via a link at the top of the paper.

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Linking riverine partial pressure of carbon dioxide to dissolved organic matter optical properties in a Dry-hot Valley Region.

Sci Total Environ

February 2020

Key Laboratory of Reservoir Aquatic Environment, Research Center for Ecohydrology, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China; University of Chinese Academy of Sciences, Beijing 100049, China.

The mineralization of dissolved organic matter (DOM) can partially explain riverine carbon dioxide (CO) emissions to the atmosphere. However, little is known about how the DOM origin and composition drive CO partial pressures (pCO). Here, we reveal links between aquatic pCO, DOM optical parameters (a, a and S and S) and nutrients in a subtropical river in China's Dry-hot Valley Region.

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Tidal wetland resilience to sea level rise increases their carbon sequestration capacity in United States.

Nat Commun

November 2019

State Key Laboratory of Estuarine and Coastal Research and Institute of Eco-Chongming, East China Normal University, Shanghai, 201100, P. R. China.

Coastal wetlands are large reservoirs of soil carbon (C). However, the annual C accumulation rates contributing to the C storage in these systems have yet to be spatially estimated on a large scale. We synthesized C accumulation rate (CAR) in tidal wetlands of the conterminous United States (US), upscaled the CAR to national scale, and predicted trends based on climate change scenarios.

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Here, we provide baseline information about the relative abundance and group size of the Australian cownose ray Rhinoptera neglecta on the central east coast of Australia. Using drone monitoring over 2 years, we completed 293 transects, each 2 km in length, at four locations distributed along c.100 km of coast.

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Great hammerhead sharks Sphyrna mokarran are the largest member of Sphyrnidae, yet the roles of these large sharks in the food webs of coastal ecosystems are still poorly understood. Here we obtained samples of muscle, liver and vertebrae from large S. mokarran (234-383 cm total length; L ) caught as by-catch off eastern Australia and used stable-isotope analyses of δ N, δ C and δ S to infer their resource use and any associated ontogenetic patterns.

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Policies aiming to preserve vegetated coastal ecosystems (VCE; tidal marshes, mangroves and seagrasses) to mitigate greenhouse gas emissions require national assessments of blue carbon resources. Here, we present organic carbon (C) storage in VCE across Australian climate regions and estimate potential annual CO emission benefits of VCE conservation and restoration. Australia contributes 5-11% of the C stored in VCE globally (70-185 Tg C in aboveground biomass, and 1,055-1,540 Tg C in the upper 1 m of soils).

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From multi-target anticoagulants to DOACs, and intrinsic coagulation factor inhibitors.

Blood Rev

January 2020

State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China. Electronic address:

From the 1940s to 1990s, heparin and warfarin have been the main anticoagulants for the prevention and treatment of thrombotic events. Since then, LMWHs and fondaparinux proved effective in clinical trials, with better pharmacokinetic profiles and no monitoring requirements. Developed in the early 21st century, DOACs have comparable efficacy to LMWHs, but increase bleeding risk, as the anticoagulant targets (FIIa, FXa) are also essential for physiological hemostasis.

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Refugia under threat: Mass bleaching of coral assemblages in high-latitude eastern Australia.

Glob Chang Biol

November 2019

Australian Research Council Centre of Excellence for Coral Reef Studies, School of Biological Sciences, The University of Queensland, St. Lucia, QLD, Australia.

Environmental anomalies that trigger adverse physiological responses and mortality are occurring with increasing frequency due to climate change. At species' range peripheries, environmental anomalies are particularly concerning because species often exist at their environmental tolerance limits and may not be able to migrate to escape unfavourable conditions. Here, we investigated the bleaching response and mortality of 14 coral genera across high-latitude eastern Australia during a global heat stress event in 2016.

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Intertidal wetlands can sequester pollutants along estuarine conduits. Here we test the effectiveness of a mangrove-dominated estuary in removing dissolved nitrogen during a rain event. We intensively and simultaneously sampled surface water nutrients upstream and downstream of an estuary before, during and after a 63 mm rain event in Coffs Creek (Australia).

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Resilience of a harvested gastropod, Turbo militaris, to marine heatwaves.

Mar Environ Res

October 2019

National Marine Science Centre, Southern Cross University, PO Box 4321, Coffs Harbour, NSW, 2450, Australia; Marine Ecology Research Centre, School of Environment, Science and Engineering, Southern Cross University, 2480, Lismore, NSW, Australia.

Marine heatwaves (MHW) are predicted to occur with increased frequency, duration and intensity in a changing climate, with pervasive ecological and socioeconomic consequences. While there is a growing understanding of the ecological impacts of warming and marine heatwaves, much less is known about how they influence the underlying physiology and health of species, and the nutritional properties of tissue. We evaluated the effects of different heatwave scenarios and ocean warming on the nutritional properties and immune health of the harvested gastropod Turbo militaris.

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The acute physiological status of white sharks () exhibits minimal variation after capture on SMART drumlines.

Conserv Physiol

August 2019

National Marine Science Centre, Southern Cross University, PO Box 4321, Coffs Harbour, New South Wales, Australia.

Drumlines incorporating SMART (Shark-Management-Alert-in-Real-Time) technology are a new tool used in several bather protection programmes globally. In New South Wales (NSW), Australia, the white shark () is a target species for SMART drumlines because they are often involved in attacks on humans. To understand white shark sensitivity to capture and to establish protocols around acceptable timeframes for responding to alerts, 47 juvenile and subadult white sharks were caught on SMART drumlines at five locations off the east coast of Australia.

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Abstract: Kelps (order Laminariales) are foundation species in temperate and arctic seas globally, but they are in decline in many places. Laminarian kelp have an alternation of generations and this poses challenges for experimental studies due to the difficulties in achieving zoospore release and gametophyte growth. Here, we review and synthesize the protocols that have been used to induce zoospore release in kelps to identify commonalities and provide guidance on best practices.

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Harnessing synthetic biology for kelp forest conservation.

J Phycol

August 2019

Department of Primary Industries, Elizabeth Macarthur Agricultural Institute, Woodbridge Road, Menangle, New South Wales, 2568, Australia.

Environmental and climatic change is outpacing the ability of organisms to adapt, at an unprecedented level, resulting in range contractions and global ecosystem shifts to novel states. At the same time, scientific advances continue to accelerate, providing never-before imagined solutions to current and emerging environmental problems. Synthetic biology, the creation of novel and engineered genetic variation, is perhaps the fastest developing and transformative scientific field.

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Using the last taxonomic review of chondrichthyans of the world, we selected the species distributed in the north-western Atlantic Ocean (NWA) and compared it with the available published literature related to the class Chondrichthyes in the Venezuelan exclusive economic zone. We also revised information from worldwide databases such as: FAO (NWA-31 area), GBIF, iSpecies, IUCN and OBIS, as well as available museum collection databases. The taxonomic validity was checked using the Catalogue of Fishes of the California Academy of Sciences and recent references.

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Chelonid Alphaherpesvirus 5 DNA in Fibropapillomatosis-Affected Chelonia mydas.

Ecohealth

June 2019

Laboratório de Patologia Animal, Departamento de Medicina Veterinária Preventiva, Universidade Estadual de Londrina, PR 445 km 380, Londrina, Paraná, CEP 86057-970, Brazil.

Fibropapillomatosis is a panzootic and chronic disease among Chelonia mydas-usually associated with anthropogenic impacts. This study contributes towards understanding fibropapillomatosis implications for C. mydas populations as a reflector of environmental quality, via prevalence and histological, molecular and blood analyses at a World Heritage site in southern Brazil.

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Physiological changes in post-hatchling green turtles () following short-term fasting: implications for release protocols.

Conserv Physiol

May 2019

National Marine Science Centre, School of Environment, Science and Engineering, Southern Cross University, Coffs Harbour, NSW, Australia.

Relocation of sea turtle nests and the retention of post-hatchlings for head-starting programs are both commonly used to improve conservation outcomes and facilitate eco-tourism ventures. Currently, there is little literature surrounding the husbandry protocols required during these programs to optimize post-release outcomes. To assess the impact of varied feeding regimes on exercise performance, (which will hereafter be referred to as 'fitness'), 40 10-month-old captive post-hatchling green turtles () were divided into four groups of 10 and fasted for either 3, 9, 10 or 15 h.

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A Crown-of-Thorns Seastar recombinant relaxin-like gonad-stimulating peptide triggers oocyte maturation and ovulation.

Gen Comp Endocrinol

September 2019

GeneCology Research Centre, University of the Sunshine Coast, 90 Sippy Downs Drive, Sippy Downs, Queensland 4556, Australia. Electronic address:

The Acanthaster planci species-complex [Crown-of-Thorns Seastar (COTS)] are highly fecund echinoderms that exhibit population outbreaks on coral reef ecosystems worldwide, including the Australian Great Barrier Reef. A better understanding of the COTS molecular biology is critical towards efforts in controlling outbreaks and assisting reef recovery. In seastars, the heterodimeric relaxin-like gonad stimulating peptide (RGP) is responsible for triggering a neuroendocrine cascade that regulates resumption of oocyte meiosis prior to spawning.

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We determined stable-isotope ratios for replicate muscle tissues in 13 gravid Mobula kuhlii cf. eregoodootenkee (110.4-120.

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Introgressive hybridisation between two widespread sharks in the east Pacific region.

Mol Phylogenet Evol

July 2019

Centre for Sustainable Tropical Fisheries and Aquaculture, College of Science and Engineering, James Cook University, Townsville, 4811 QLD, Australia; Comparative Genomics Centre, College of Science and Engineering, James Cook University, Townsville, 4811 QLD, Australia; Laboratory of Biodiversity and Evolutionary Genomics, University of Leuven, B-3000 Leuven, Belgium; Laboratory for Cytogenetics and Genome Research, Center for Human Genetics, Genomics Core, KU Leuven, 3000 Leuven, Belgium.

With just a handful of documented cases of hybridisation in cartilaginous fishes, shark hybridisation remains poorly investigated. Small amounts of admixture have been detected between Galapagos (Carcharhinus galapagensis) and dusky (Carcharhinus obscurus) sharks previously, generating a hypothesis of ongoing hybridisation. We sampled a large number of individuals from areas where the species co-occur (contact zones) across the Pacific Ocean and used both mitochondrial and nuclear-encoded SNPs to examine genetic admixture and introgression between the two species.

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Future climate change is predicted to affect the microbiome and condition of habitat-forming kelp.

Proc Biol Sci

February 2019

1 Centre for Marine Bio-Innovation, School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, New South Wales 2052 , Australia.

Climate change is driving global declines of marine habitat-forming species through physiological effects and through changes to ecological interactions, with projected trajectories for ocean warming and acidification likely to exacerbate such impacts in coming decades. Interactions between habitat-formers and their microbiomes are fundamental for host functioning and resilience, but how such relationships will change in future conditions is largely unknown. We investigated independent and interactive effects of warming and acidification on a large brown seaweed, the kelp Ecklonia radiata, and its associated microbiome in experimental mesocosms.

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The interactive effects of ocean warming and invasive species are complex and remain a source of uncertainty for projecting future ecological change. Climate-mediated change to trophic interactions can have pervasive ecological consequences, but the role of invasion in mediating trophic effects is largely unstudied. Using manipulative experiments in replicated outdoor mesocosms, we reveal how near-future ocean warming and macrophyte invasion scenarios interactively impact gastropod grazing intensity and preference for consumption of foundation macroalgae ( Ecklonia radiata and Sargassum vestitum).

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The application of high-throughput sequencing to retrieve multi-taxon DNA from different substrates such as water, soil, and stomach contents has enabled species identification without prior knowledge of taxon compositions. Here we used three minibarcodes designed to target mitochondrial COI in plankton, 16S in fish, and 16S in crustaceans, to compare ethanol- and tissue-derived DNA extraction methodologies for metabarcoding. The stomach contents of pygmy devilrays ( cf.

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Behavioural lateralization is widespread. Yet, a fundamental question remains, how can lateralization be evolutionary stable when individuals lateralized in one direction often significantly outnumber individuals lateralized in the opposite direction? A recently developed game theory model predicts that fitness consequences which occur during intraspecific interactions may be driving population-level lateralization as an evolutionary stable strategy. This model predicts that: (i) minority-type individuals exist because they are more likely to adopt unpredictable fighting behaviours during competitive interactions (e.

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Role of carbonate burial in Blue Carbon budgets.

Nat Commun

March 2019

King Abdullah University of Science and Technology (KAUST), Red Sea (RSRC) and Computational Bioscience (CBRC) Research Centers, Thuwal, 23955-6900, Saudi Arabia.

Calcium carbonates (CaCO) often accumulate in mangrove and seagrass sediments. As CaCO production emits CO, there is concern that this may partially offset the role of Blue Carbon ecosystems as CO sinks through the burial of organic carbon (C). A global collection of data on inorganic carbon burial rates (C, 12% of CaCO mass) revealed global rates of 0.

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