Sean P. Colin

TL;DR: The lateral vortex motif discovered here appears to be critical to the dual function of the medusa bell as a flow source for feeding and propulsion and has a greater volume and closer spacing than predicted by prevailing models of medusan swimming.

TL;DR: It is predicted that A. aurita will select zooplankton such as barnacle nauplii and some slow swimming hydromedusae, while faster copepods will be negatively selected, and that medusae of a specific diameter will positively select prey with escape speeds slower than the flow velocities at their bell margins.

TL;DR: An examination of the wakes behind swimming medusae indicated that, in contrast to the clearly defined jet structures produced by prolate species, oblatemedusae did not produce defined jets but instead produced prominent vortices at the bell margins, which are consistent with a predominantly drag-based, rowing mode of propulsion by the oblate species.

TL;DR: Observations of males tracking their own trails and the trails of other males bring into question the speci¢city of trails as a mechanism promoting reproductive isolation among co-occurring planktonic copepod speciesTemora longicornis.

TL;DR: It is demonstrated, contrary to prevailing views, that the jellyfish (Aurelia aurita) is one of the most energetically efficient propulsors on the planet, exhibiting a cost of transport lower than other metazoans and reduced metabolic demand by passive energy recapture improves the cost of travel by 48%, allowing jellyfish to achieve the large sizes required for sufficient prey encounters.