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Full-Text Articles in Marine Biology
Ontogenetic Scaling Of The Olfactory Antennae And Flicking Behavior Of The Shore Crab, Hemigrapsus Oregonensis, Lindsay D. Waldrop
Ontogenetic Scaling Of The Olfactory Antennae And Flicking Behavior Of The Shore Crab, Hemigrapsus Oregonensis, Lindsay D. Waldrop
Biology, Chemistry, and Environmental Sciences Faculty Articles and Research
Malacostracan crustaceans such as crabs flick antennae with arrays of olfactory sensilla called aesthetascs through the water to sense odors. Flicking by crabs consists of a quick downstroke, in which aesthetascs are deflected laterally (splayed), and a slower, reversed return stroke, in which aesthetascs clump together. This motion causes water to be flushed within and then held in between aesthetascs to deliver odor molecules to olfactory receptors. Although this odor sampling method relies on a narrow range of speeds, sizes, and specific arrangements of aesthetascs, most crabs dramatically change these during ontogeny. In this study, the morphometrics of the aesthetascs, …