Gross lesions in case mussels.

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posted on 2024-08-27, 18:18 authored by Jeronimo G. Da Silva Neto, Rebecca H. Hardman, Augustin C. Engman, Gerald R. Dinkins, Timothy W. Lane, Michael M. Fry, Christian R. Rines, Amber L. Bisenieks, Sree Rajeev, Michelle M. Dennis

Gross lesions in case mussels (i.e., wild moribund Pheasantshell (Actinonaias pectorosa)) sampled at sites impacted by seasonal mortality events in the Clinch River. A. Gravid marsupium (m) discolored by brown foci; f–foot. B-D. Anomalous right shell valve characterized by recession of mantle at the posterior shell margin (B, arrow), which once removed, reveals an elevated thin layer of nacre with a hole (C, arrowhead) which covers a chamber filled with thin flocculent fluid containing green debris (D).

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wild mussel populations pathological conditions leading multifocal infiltrative hemocytosis influencing water quality div >< p pose significant challenges freshwater biodiversity hotspot considering bacterial diseases microscopic lesions associated actinonais pectorosa actinonaias pectorosa yokenella regensburgei reported bacteria associated multisystemic inflammatory disease moribund pheasantshell (<pectorosa lesions associated regensburgei significant association severe multisystemic pheasantshell (<bacterial isolation freshwater mussels >) associated ultimately dying throughput sequencing sufficient severity situ experiments riverine ecosystems results underscore physiological significance often characterized nutrient cycling multiyear case may 2021 investigated differences integral components infectious disease infected hosts habitat characteristics findings reveal field surveys despite reports december 2023 conservation efforts clinch river 68 hatchery

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Gross lesions in case mussels.

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