Filed LABB news items:

Woody, an eight year old male Steller sea lion at the Alaska Sea Life Center, carrying a neoprene patch with an epoxy baseplate for a quick-release attachment of a variety of recording dvices.

In the image below, we are preparing the brand new "Heat Flux Recorder". Once finished, this device will be connected to Heat Flux Sensors, which will be glued to the skin of Woody, and will allow us to determine how much heat he is transfering to the cold water he swims in. Ultimately, we want to find out whether Steller sea lions are likely to incur additional thermoregulatory expenses when foraging in cold, arctic waters, beyond the energetic expenses already required for locomotion.

The electronics of the newly developed Heat Flux Recorder are being placed in a mold of synthetic silicone-rubber for casting in electronic resin.

The Heat Flux Recorder is an 8-channel recorder with 12-bit resolution on all channels. It can monitor up to four Heat Flux Sensors, and four thermistors. For details and definitions related to thermoregulation, heat flux, and heat flux sensors check out our GLOSSARY in the Technology section. (7/1/01)

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