| Dr. Ronald
AA (El Camino College, CA)
|Teaching & Research
Telemetric bioenergetics of cephalopods
orking with VEMCO Ltd., Shad Bay, N.S., O'Dor's research team developed radio-acoustic positioning telemetry (RAPT) to continuously record animal movements under the sea. They monitor the behaviour and physiology of cephalopods around the world. Octopus and squid as small as 50g can carry vitamin pill-sized electronic tags that ping ultrasonically. Larger cuttlefish and nautilus carry tags the size of AA batteries to telemeter back data about their environment and/or physiology and monitor their bioenergetics. RAPT buoys record ping times and radio them several kilometers to a computer continuously triangulating positions and storing data. O'Dor's team helps other scientists use RAPT to study a wide range of invertebrates, fish and even Navy divers. RAPT is a valuable conservation tool, revealing how animals use marine reserves which helps to design them. By tracking divers carrying video cameras, RAPT helps reconstruct pictorial maps of the habitats animals use. Comparing these maps from year to year also illustrates how environmental changes affect habitats.
|Examples of Students'
Decker, C.J. and O'Dor, R.K. (2002) The Census of Marine Life: Special Issue. Oceanologia Acta 25 (5): 179-284.
Rodhouse, P., Dawe, E.G. and O'Dor, R.K. (1998) Squid Recruitment Dynamics. Fish. Tech. Pap 376, FAO:Rome, 273 pp.
Pörtner, H.O., O'Dor, R.K. and Macmillan, D.L. (1994) Physiology of Cephalopod Molluscs. Lifestyle and Performance Adaptations. Gordon and Breach, Basel. 214pp.
O'Dor, R.K. (2002) Telemetered cephalopod energetics: swimming, soaring and blimping. Integ. Comp. Biol. 42:1065-1070.
O'Dor, R.K., Adamo, S., Aitken, J.P., Andrade, Y., Finn, J., Hanlon, R.T. and Jackson, G.D. (2002) Currents as environmentsl constraints on the behavior, energetics and distribution of squid and cuttlefish. Bull. Mar. Sci. 71:601-617.
O'Dor, R.K., Aitken, J.P., Babcock, R.C., Bolden, S.K., Seino, S., Zeller, D.C. and Jackson, G.D. (2001) Using radio-acoustic positioning and telemetry (RAPT) to define and assess marine protected areas (MPAs). In: J. Sibert and J. Nielsen (eds), Electronic Tagging and Tracking In Marine Fisheries, Reviews: Methods and Technologies in Fish Biology and Fisheries, Vol. 1. Kluwer Academic Press, Dordrecht, The Netherlands, pp. 147-166.
Jackson, G.D. and O'Dor, R.K. (2001) Time, space and the ecophysiology of squid growth, life in the fast lane. Vie Milieu 51: 205-215.
Voegeli, F.A., Webber, D.M., Smale, M.J., Andrade, Y. and O'Dor, R.K. (2001) Ultrasonic telemetry, tracking and automated monitoring technology for sharks. Environ. Biol. Fish. 60:267-281.
Webber, D.M., Aitken, J. and O'Dor, R.K. (2000) Costs of vertical locomotion and vertic dynamics of cephalopods and fish. Physiol. Biochem. Zool. 73: 651-662.
Wood, J.B. and O'Dor, R.K. (2000) Do larger cephalopods live longer? Effects of temperature and phylogeny on interspecific comparisons of age and size at maturity. Mar. Biol. 136:91-99.
Manuel, J.L., Pearce, C.M., Manning, D.A. and O'Dor, R.K. (2000) The response of sea scallop (Placopecten magellanicus) veligers to a weak thermocline in 9m deep mesocosms. Mar. Biol. 137:169-175.
Seino, S., Tsuchiya, Y., O'Dor, R.K., Uda, T., Nishihara, M., Kugimiya, K., Watnabe, N. (1999) Behavioral monitoring of horseshoe crabs by radio-acoustic biotelemetry. Proc. Coastal Engineering, Jap. Soc. Civil Eng. 46:1296-1300 (In Japanese).