Callinectes, Greek for “beautiful swimmer”, is a Hydroid-Kongsberg REMUS 600 autonomous underwater vehicle. Also the genus of the blue crab, Callinectes was acquired through the National Science Foundation Major Research Instrumentation program (OCE-1126426) with support from the University of Maryland Center for Environmental Science and Horn Point Laboratory. Callie moved to California in 2016 with support from UCSB.

She is well-equipped for coastal oceanographic research. The scientific payload consists of a Seabird GP-CTD w/ SBE43 dissolved oxygen sensor, Wetlabs ECO Triplet (red scattering, chlorophyll fluorescence, and phycoerythrin fluorescence), Satlantic SUNA UV nitrate analyzer, LiCor PAR sensor, and upward- and downward-looking Teledyne RDI 600 kHz ADCPs. A Rockland Scientific Microrider-1000 can be installed in the nose for microstructure measurements.