Document Type
Article
Publication Date
January 2007
Publication Title
Marine Ecology Progress Series
First Page
227
Last Page
234
Keywords
Phenotypic plasticity, Suspension feeding, Waves, Water velocity, Chthamalus fissus
Disciplines
Biology
Abstract
Plastic morphological changes in response to environmental cues can allow organisms to adapt to their local environment. Barnacle feeding legs (cirri) exhibit substantial plasticity in size and shape along wave exposure gradients on rocky shores, but only up to a certain limit in maximum water velocities. Above the limit, the morphology of the cirri becomes invariant. Behavioral observations of barnacles feeding at a wave-exposed shore indicate that the fast response time for feeding motions allows barnacles to avoid potentially damaging flows associated with breaking waves, while still allowing feeding between wave impacts. The ability of barnacles to avoid individual waves indicates that the apparent limit in morphological plasticity may not be a result of physiological limits in cirral form, but rather a result of the barnacles reacting to some measure of the environment besides extreme flow speeds.
Recommended Citation
Luke P. Miller. "Feeding in extreme flows: behavior compensates for mechanical constraints in barnacle cirri" Marine Ecology Progress Series (2007): 227-234.
Comments
Copyright © 2007 Inter-Research. Miller, L. P. (2007) Feeding in extreme flows: behavior compensates for mechanical constraints in barnacle cirri. Marine Ecology Progress Series, 349, pgs. 227-234 DOI: http://dx.doi.org/10.3354/meps07099