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Folger Passage
Folger Passage is located on the continental shelf near the entrance to Barkley Sound. Here, instruments are positioned in two clusters. Folger Passage Deep (100m) on the seafloor and Folger Passage Pinnacle on a rocky pinnacle that reaches up to 23m below the surface. (Click the map above to see an enlargement. See the map archive for previous deployments.)
Research Objectives
- identify factors controlling biological productivity both within the water column and at the seafloor
- evaluate the effects that marine processes have on fish and marine mammals
- provide learning opportunities for students, researchers and the public, many of whom will be working and studying at the nearby Bamfield Marine Sciences Centre
Folger Passage Instruments
Folger Deep
- oxygen sensor
- ADCP (300 kHz)
- echosounder (38, 120, and 200 kHz)
- bottom pressure recorder
- hydrophone
- CTD
Folger Passage Latest Readings
| Folger Deep (100m) | ||
|---|---|---|
Aanderaa Optode |
||
| Oxygen Concentration | 123 | ml/L |
| Oxygen Saturation | 123 | % |
| Temperature | 123 | °C |
Seabird CTD |
||
| Conductivity | 123 | S/m |
| Temperature | 123 | C |
| Pressure | 123 | decibar |
| Salinity | 123 | psu |
| Sound Velocity | 123 | m/s |
| Density | 123 | kg/m3 |
3D Underwater Imaging
Flourishing benthic communities like the one shown here will be imaged in 3D using an innovative 8-camera array. On land, everything we do is in 3D, but remotely, by video, we are reduced to 2-dimensional views. At the Folger Pinnacle study site, 8 computer-controlled cameras will be arranged in a semicircle surrounding the area of interest. The 3D view will allow us to observe sponges "cringing" and "sneezing" in response to internal waves or sudden sediment surges.
This project is a combination of computing and biological research by Herb Yang and Sally Leys at the University of Alberta, with engineering design by Highland Technologies, Sidney.
