Loading...
  • fishes
  • Understanding cardiac function in developing larval fishes is crucial for assessing their physiological condition and overall health. (frontiersin.org)
  • Larval fishes, passing through stages of yolk sac, hatching, opening mouth and free-swimming, are particularly vulnerable to environmental stressors due to their small size, low energy reserves and limited migration capacities. (frontiersin.org)
  • Therefore, a failure in organ development or homeostasis during larval stages could lead to detrimental consequences, if not death, for maturing fishes. (frontiersin.org)
  • Among the most critical organ systems is the cardiovascular system, which is the first to function in the larval fishes (indeed, in any developing vertebrate). (frontiersin.org)
  • mortality
  • Therefore, this study in contrary to many published studies shows that Vibrio splendidus proliferation during mortality events can also result from growth of Vibrio communities normally associated with larval cultures and may not have a direct role in disease. (edu.au)
  • Canonical analysis of principal coordinates (CAP) examining samples (n=72) categorised into normal, a day before (n=2), during (n=2) and a day after mortality (n=2) demonstrated systematic shifts in seawater and larval bacterial communities corresponding to the infection course of bacillary necrosis as mortality developed and subsided. (edu.au)
  • This study for the first time demonstrated bacillary necrosis is potentially initiated in seawater even though the onset of bacillary necrosis remains unpredictable in both timing and scale of larval mortality. (edu.au)
  • and Gracilibacteria were statistically more abundant in high mortality larval whilst Pseudoalteromonas distincta, Phaeobacter gallaenciensis and Vibrio splendidus were more abundant in low mortality cultures. (edu.au)
  • This study also examined proteolytic activity in the larval culture seawater and for the first time showed a significant association between total proteolytic activity of rearing seawater and mortality. (edu.au)
  • Modeling larval Calanus finmarchicus on Georges Bank: Time-varying mortality rates and a cannibalism hypothesis. (usglobec.org)
  • reef
  • The overall aim of this thesis was to investigate physical and biological factors driving larval transport in coral reef systems, with particular emphasis on the effect of lee‐reef eddies, swimming behaviour, and their interaction. (edu.au)
  • Simulations of particle transport at individual reefs with idealized shapes, under the influence of unidirectional and tidal flows, were conducted with the Sparse Hydrodynamic Ocean Code (SHOC), a three dimensional hydrodynamic model, using a reef‐scale spatial resolution. (edu.au)
  • The findings above suggest that the Island Wake Parameter may be useful for approximating retention of particles close to reefs, when well‐calibrated, reef‐scale circulation models are not unavailable. (edu.au)
  • These results indicate, first, that lee‐reef eddies and their dynamics are accurately depicted by the Island Wake Parameter, and second, that lee‐reef eddies are key drivers of passive larval transport close to reefs. (edu.au)
  • gene
  • Our transcriptome comprises ~32 K transcripts, after filtering, and provides a basis for analyzing patterns of gene expression in adult and larval box jellyfish tissues. (beds.ac.uk)
  • species
  • Bacillary necrosis is a sporadic and rapid bacterial disease, capable of causing total collapse of larval cultures (known as larval crash) in a period of 24-48 h and is today, the most prevalent hatchery disease worldwide, affecting more than 20 bivalve species. (edu.au)
  • However, assessment of heart function-especially if stroke volume is the focus of the study-should consider larval heart shape, with different models being applied on a species-by-species and developmental stage-by-stage basis for best estimation of cardiac output. (frontiersin.org)
  • By incorporating quantitative tissue concentration-response functions from laboratory animal model species into an IBM framework, population trajectories were generated. (deepdyve.com)
  • Modeling the larval transport due to the currents in the Bay and on the adjoining continental shelf is difficult due to this disparity between controlling scales, yet the results of such a modeling effort should provide new insights on the year-to-year survival of economically important species such as the blue crab (Callinectes sapidus). (odu.edu)
  • The latest modeling project of GLEN WHELESS, research assistant professor, will examine the effects of physical processes such as wind, tides, and runoff on the circulation in the Bay and on the shelf-to-Bay transport of estuarine-dependent biological species. (odu.edu)
  • 2016. Midpoint attractors and species richness: Modelling the interaction between environmental drivers and geometric constraints. (uvm.edu)
  • defects
  • During the initial screening performed, one of our larval AD models has shown a subtle but repeatable phenotype during navigation in an odour gradient and, in some cases, defects in learning. (ed.ac.uk)
  • survival
  • An individual based model (IBM) for assessing effects on both calf survival and immunity was developed and tested. (deepdyve.com)
  • The unique aspect of the model is its ability to evaluate likely effects of immunosuppression in addition to calf survival, enabling consequences of PCB exposure on immune function on all age-classes to be explored. (deepdyve.com)
  • transgenic
  • Using transgenic models in which tau is co-expressed with these proteins, we investigate the effect of co-expression on established tau phenotypes and then assess the molecular mechanism(s) underpinning this. (southampton.ac.uk)
  • dynamics
  • As a result, this first part of the study investigated population dynamics and the role of culturable Vibrio in spontaneous outbreaks of bacillary necrosis in larval culture of Australian blue mussel (Mytilus galloprovincialis) reared under laboratory conditions. (edu.au)
  • Comparison of the model outcomes against observed time series of temperature, sea level and currents through correlation, principal components, and spectral analyses, showed that the model reproduces the dynamics in the region adequately. (edu.au)
  • Here we use an individual-based model to explore the information-sharing and copying dynamics of a leaderless animal group navigating towards a target in a virtual environment. (biomedcentral.com)
  • communities
  • In order to examine the link of seawater associated bacterial communities with variability in bacillary necrosis, a study was instigated that examined nineteen replicate small-scale larval cultures using 0.22 μm filtered seawater and a commercial algal food to minimize variation. (edu.au)
  • Effects
  • Though sophisticated models predict the effects of future temperatures on ectotherms, few also address how ubiquitous sublethal contaminants alter an organism's response to thermal stress. (environmental-expert.com)
  • Agent-based models (ABMs) have been used to estimate the effects of malaria-control interventions. (biomedcentral.com)
  • Malaria modelling, both mathematical and agent-based, can play important roles to quantify the effects of malaria-control interventions and to answer other interesting research questions. (biomedcentral.com)
  • circulation
  • Fresh water was allowed to enter the quiescent model Bay from the Susquehanna River to drive the circulation. (odu.edu)
  • copepods
  • Variation in assimilation efficiencies of dominant Neocalanus and Eucalanus copepods in the subarctic Pacific: Consequences for population structure models. (si.edu)
  • study
  • In the future, the zebrafish larva as a live whole animal model system will contribute greatly to the study of molecular mechanisms involved in the interaction of the host innate immune system with fungal spores during mucormycosis. (biologists.org)
  • The present study assessed the validity of three different heart models (the "standard" prolate spheroid model as well as a cylinder and cone tip + cylinder model) applied to digital images of complete cardiac cycles in larval mahi-mahi and red drum. (frontiersin.org)
  • Specifically, we study the characteristics of fly models expressing human genes involved in neurological disorders such as Alzheimer's and Parkinson's Diseases (AD and PD). (ed.ac.uk)
  • Each year of the study, C. melanoscelus was the dominant larval parasite of L. dispar . (usda.gov)
  • data
  • Linear discriminant analysis effect size (LEfSe) focusing on larval community data show sequence reads affiliated with Marinomonas sp. (edu.au)
  • Model outputs included estimated concentrations of PCBs in the blubber of females by age, which were then compared to published empirical data. (deepdyve.com)
  • Several guidelines (code and data sharing, relevant documentation, and standardized models) for future modellers are also recommended. (biomedcentral.com)
  • We assembled a transcriptome de novo from RNA-Seq data pooled from multiple body parts (gastric cirri, ovaries, tentacle (with pedalium base) and rhopalium) of an adult female A. alata medusa and larval planulae. (beds.ac.uk)
  • Null Model Analysis for Ecological Data (R package). (uvm.edu)
  • fish
  • However, the larval fish heart changes shape during early development and subsequent maturation, but no consideration has been made of the effect of different heart geometries on cardiac output estimation. (frontiersin.org)
  • patterns
  • Indeed, Glen's model results indicate that the Bay mouth density field is very sensitive to wind stress variablity, results which are borne out by recent Acoustic Doppler Current Profiler (ADCP) observations by ARNOLDO VALLE-LEVINSON, research assistant professor, showing variability associated with bathymetry, wind stress patterns, and tidal influences. (odu.edu)
  • 2016. A stochastic model for landscape patterns of biodiversity. (uvm.edu)
  • title
  • Consolidating key protocols and approaches to help researchersnavigate the important and evolving field of zebrafish models fortoxicity screening, this new title describes the methods for usingthe zebrafish as a model organism to assess compound-inducedtoxicity on all major organs. (barnesandnoble.com)
  • early
  • Early studies have shown the efficacy of larval source management (LSM) and insecticide-treated nets (ITNs) as vector-control interventions, applied both in isolation and in combination. (biomedcentral.com)
  • Research
  • Research utilising mammalian models and phagocytic effector cell lines has attempted to decipher the importance of the innate immune system in host defence against mucormycosis. (biologists.org)
  • We are developing new methods to research and understand locomotion behaviours in the simple larval brain. (ed.ac.uk)
  • shown
  • Results from a three-dimensional primitive equation ocean model using a realistic Chesapeake Bay bathymetry are shown in the figure. (odu.edu)
  • simple
  • End-diastolic and stroke volumes modeled by just a simple cylinder shape were 30-50% higher compared to the conventional prolate spheroid. (frontiersin.org)
  • systems
  • However, these model systems have not been satisfactory to directly analyse the interaction between innate immune effector cells and infectious sporangiospores in vivo . (biologists.org)
  • heart
  • However, when these values of stroke volume multiplied by heart rate to calculate cardiac output, no significant differences between models emerged because of considerable variability in heart rate. (frontiersin.org)
  • However
  • However, the robustness of results can be affected by several important modelling assumptions, including the type of boundary used for landscapes, and the number of replicated simulation runs reported in results. (biomedcentral.com)
  • major
  • Reports on three major topics cultural analysis, economic analysis and results from a model that projects the ecosystem benefits (i.e., water quality improvements) of oyster restoration have already been presented. (somd.com)
  • volume
  • The inherent error of each model was determined to allow for more precise calculation of stroke volume and cardiac output. (frontiersin.org)
  • The conventional prolate spheroid and cone tip + cylinder models yielded significantly different stroke volume values at 56 hpf in red drum and from 56 to 104 hpf in mahi. (frontiersin.org)
  • Essentially, the conventional prolate spheroid shape model provides the simplest measurement with lowest variability of stroke volume and cardiac output. (frontiersin.org)
  • tropical
  • The cubozoan Alatina alata is emerging as a cnidarian model because it forms predictable monthly nearshore breeding aggregations in tropical to subtropical waters worldwide, making both adult and larval material reliably accessible. (beds.ac.uk)
  • response
  • Models can play key roles in selecting appropriate combinations of interventions to interrupt transmission and in setting response timelines and expectations of impact. (biomedcentral.com)