Richard L. Radtke

PhD University of South Carolina (Marine Science), 1978

Researcher, Hawai'i Institute of Geophysics and Planetology

Hawai`i Institute of Geophysics and Planetology
School of Ocean and Earth Science and Technology
2525 Correa Road
Honolulu, Hawaii 96822 U.S.A.
phone: (808) 956-7498
FAX: (808) 956-9516
radtke@hawaii.edu
www.soest.hawaii.edu/~radtke/

Fish ecology

My research area is ecology, with special interests in energetics and population dynamics, biorhythms which control growth and reproduction, recruitment and management of commercial marine species, calcium metabolism, and fish biology.

Present research program based primarily upon determination of factors influencing daily increment deposition and chemical composition of calcified tissues in marine organisms. Studies include fish demographics and migrations. Organisms investigated include: larval, juvenile and adult tropical, temperate and Antarctic fishes; cephalopods; and bivalves.

Representative publications

Radtke RL, Dempson JB, Ruzicka J. 1998. Microprobe analyses of anadromous Arctic charr, Salvelinus alpinus, otoliths to infer life history migration events. Polar Biol 19:1-8.

Radtke RL, Kinzie III RA. 1996. Evidence of a marine larval stage in endemic Hawaiian stream gobies from isolated locations. Trans Am Fish Soc 125:613-621.

Radtke RL. 1995. Forensic biological pursuits of exotic fish origins: Piranha in Hawaii. Env Biol Fish 43:393-399.

Radtke RL, Shafer DJ. 1992. Environmental sensitivity of fish otolith microchemistry. Aust J Mar Freshwater Res 43:935-951.

Radtke RL, Townsend DW, Folsom SD, Morrison MA. 1990. Strontium: calcium concentration ratios in larval herring otoliths as indicators of environmental histories. Environ Biol Fish 27:51-61.

Radtke R.L, Targett TE, Kellermann A, Bell JL, Hill KT. 1989. Antarctic fish growth: profile of Trematomus newnesi. Mar Ecol Prog Ser 57:103-117.

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