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dc.contributor.authorBachhuber, Silke
dc.contributor.authorSullivan, Jenna
dc.date.accessioned2014-11-10T23:27:10Z
dc.date.available2014-11-10T23:27:10Z
dc.date.issued2014-10
dc.identifier.urihttp://hdl.handle.net/1773/27296
dc.description.abstractThe behavior of sea star brachiolaria larvae is poorly understood and the role of their elongated posterior processes in swimming is unknown. We attempt to characterize swimming speed and behavior in the late stage brachiolaria of Pisaster ochraceus in order to form a metric for larval health and to better understand the role of larval behavior in feeding and dispersal potential. We found that larvae swim faster in the presence of food and sink at a consistent rate when cilia are removed, which does not vary linearly with body or process length. In a simulation of simplified model brachiolaria in horizontal shear flow, larvae with their posterior processes parallel were more stable, while larvae with angled processes began to tumble at lower levels of shear. Further investigation will use video analysis to assess larval movement in varying levels of vertical shear that we created in a column using a rotating belt.en_US
dc.language.isoen_USen_US
dc.publisherFriday Harbor Laboratoriesen_US
dc.relation.ispartofseriesLarval Biology;SummerB, 2014
dc.subjectPisaster ochraceus, larval swimming, behavior, brachiolaria, modelingen_US
dc.titleSwimming behavior of larval Pisaster ochraceusen_US
dc.typeOtheren_US


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