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Flash flood simulation and valve behavior of Mytilus galloprovincialis measured with Hall sensors

Integrative Zoology 2021年第2期16卷 138-148页

作者： Piero ADDIS Alberto ANGIONI Viviana PASQUINI Angelica GIGLIOLI Valeria ANDREOTTI Stefano CARBONI Marco SECCI Department of Environmental and Life Sciences University of CagliariCagliariItaly Institute of Aquaculture University of StirlingScotlandUK

Mussels close their shell as a protective strategy and the quantification of this behavioral marker may represent an alarm signal when they are exposed to environmental *** the present study,we investigated the ability of the Mediterranean mussel Mytilus galloprovincialis to recover and then the resilience or inertia of valve activity after a pulsing exposition to diverse levels of salinity(5,10,20,and 35 PSU as reference value).The trial simulated an event of drastic and sudden reduction of seawater salinity thus mimicking an event of flash flood from intense *** gaping and movements were measured in continuous cycle for 10 days using a customized magnetoelectric device which uses Hall *** showed that under normal conditions of salinity(35 PSU),the general pattern of valve movements was a continuously open state with sporadic spikes indicating a closing *** salinity of 5,PSU mussels reacted by closing their valves,leading to a 77%mortality on the 4th *** salinity of 10,PSU animals were observed with closed valves for the entire duration of the exposure and no mortality occurred,they showed a significant reduction in the valve activity once the reference value of salinity was *** contrast,salinity of 20 PSU did not trigger a significant behavioral ***,there no define rhythms of valve movements were recorded during salinity challenges.

关键词： Hall sensor mussels Mytilus galloprovincialis salinity valve activity

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