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A turbulent road trip through the Canadian wilds of my childhood with my son
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Mystery solved: Trawlers spotted on Okanagan lakes part of fisheries study | iNFOnews
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(CHARLOTTE HELSTON / iNFOnews.ca) March 15, 2021 - 6:00 AM Every year Shaun Reimer fights an increasingly difficult battle to find the perfect balance between Okanagan Lake flooding or falling into drought mode. But it’s likely to take at least five years before the Ministry of Forest’s section head for public safety in the Okanagan stands a chance of getting any significant help. That’s because it’s expected to take that long for the Okanagan Basin Water Board and the province to do all the studies needed just to get a plan of action in place, part of which will be a review of what’s considered the “correct” full pool level for Okanagan Lake.
Image Credit: SUBMITTED/Grant Cruickshank March 09, 2021 - 6:30 AM When Salmon Arm resident Grant Cruickshank saw these strange designs in the ice on Mara Lake, he found them odd enough to grab a photo March 6. They appear to be perfect circles forming through the ice. But for what are they and what causes it, we reached out to UBCO earth, environment and science professor Robert Young. He says the circles may have been formed by methane gas trapped underneath the ice. Methane is released year-round as a byproduct of decomposition, when bacteria feast on decaying matter and expel methane, he said.
The species is known to feed on algae, insects and other crayfish, in addition to ‘vascular detritus’ – particulate organic carbon, but food choice is largely dependent on what is available in the surrounding environment. The crayfish are found in the southern quarter of British Columbia, ranging as far north as Okanagan Lake, west to Vancouver Island and east to the Kootenays. The signal crayfish can be found in both lakes and streams, with sightings reported in many interior freshwater lakes, rivers and streams. Juveniles prefer shallow waters while adults are often found in deeper parts of a lake or stream.
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