Tlusty Michael F.

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Tlusty
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Michael F.
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  • Dataset
    Smallmouth grunt mortality data after exposure to experimental pH treatments
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2022-09-01) Holmberg, Robert J. ; Bourque, Bradford ; Gallagher, Eugene D. ; Hannigan, Robyn E. ; Rhyne, Andrew L. ; Tlusty, Michael F.
    This dataset reports mortality counts from Haemulon chrysargyreum (Smallmouth grunt) reared in an experimental trial in which subjects were raised under one of four pH treatments (8.10, 7.80, 7.60, 7.30). Survival counts were subtracted from the initial stocking density to calculate mortality counts. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/876987
  • Dataset
    Smallmouth grunt condition/otolith morphology data and SEM images
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2022-09-01) Holmberg, Robert J. ; Bourque, Bradford ; Gallagher, Eugene D. ; Hannigan, Robyn E. ; Rhyne, Andrew L. ; Tlusty, Michael F.
    This dataset includes condition and morphology measurements from Haemulon chrysargyreum (Smallmouth grunt) otoliths and scanning electron microscope (SEM) images after completion of an experimental trial in which subjects were raised under one of four pH treatments (8.10, 7.80, 7.60, 7.30). For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/876937
  • Article
    Host susceptibility hypothesis for shell disease in American lobsters
    (American Fisheries Society, 2007-12-31) Tlusty, Michael F. ; Smolowitz, Roxanna M. ; Halvorson, Harlyn O. ; DeVito, Simone E.
    Epizootic shell disease (ESD) in American lobsters Homarus americanus is the bacterial degradation of the carapace resulting in extensive irregular, deep erosions. The disease is having a major impact on the health and mortality of some American lobster populations, and its effects are being transferred to the economics of the fishery. While the onset and progression of ESD in American lobsters is undoubtedly multifactorial, there is little understanding of the direct causality of this disease. The host susceptibility hypothesis developed here states that although numerous environmental and pathological factors may vary around a lobster, it is eventually the lobster's internal state that is permissive to or shields it from the final onset of the diseased state. To support the host susceptibility hypothesis, we conceptualized a model of shell disease onset and severity to allow further research on shell disease to progress from a structured model. The model states that shell disease onset will occur when the net cuticle degradation (bacterial degradation, decrease of host immune response to bacteria, natural wear, and resorption) is greater than the net deposition (growth, maintenance, and inflammatory response) of the shell. Furthermore, lesion severity depends on the extent to which cuticle degradation exceeds deposition. This model is consistent with natural observations of shell disease in American lobster.