CBC article about JASCO-supported Burbot Study

CBC News recently interviewed Dr. Peter Cott of Environment and Natural Resources (Government of the Northwest Territories) and adjunct at the University of Alberta. Cott has been studying sounds made by burbot under the ice at Great Slave Lake, Yellowknife, Northwest Territories. The fish were held in a large experimental enclosure called the Lota-tron, a cubical net pen 10 m per side. Their calls were recorded with JASCO’s autonomous multi-channel acoustic recorder, the AMAR.

Dr. Cott used a JASCO AMAR to record burbot songs. Photo courtesy of S. Elsasser.

Dr. Cott used a JASCO AMAR to record burbot songs. Photo courtesy of S. Elsasser.

Find the full interview on CBC News (read or listen).

The highlights of the study’s findings are:

  • Burbot vocalized under ice during their spawning period
  • Calling was most frequent at the start of spawning
  • Sounds were stereotypical of calls generated by swim bladder
  • Calls were almost identical to those of the closely related haddock
  • Vocalizations are important to cod mating

 

 

Read more about this study in the paper “Song of the Burbot”, recently published in the Journal of Great Lakes Research. David Zeddies and Bruce Martin of JASCO are co-authors.

Citation:
Cott, P.A., A.D. Hawkins, D. Zeddies, B. Martin, T.A. Johnston, J.D. Reist, J.M. Gunn, and D.M. Higgs. In press. Song of the burbot: Under-ice acoustic signaling by a freshwater gadoid fish. J. Great Lakes Res.