Pollen or algae bloom?

The Ministry of Environment is investigating reports of algae blooms in Shuswap and Mara lakes.

Sunnybrae resident Jim Anderson took this picture of the water of Shuswap Lake from his home on Sunnybrae Canoe Point Road on Tuesday

The Ministry of Environment is investigating reports of algae blooms in Shuswap and Mara lakes.

Reports of a yellow-brown substance in Mara Lake began to surface last Thursday.

On Friday, May 22, Salmon Arm biologist Jeremy Ayotte said he and five others were on a canoe excursion, paddling along the east side of Shuswap Lake toward Anstey Arm, when they encountered a “yellow-orange mat of algae hovering about a metre below the surface.”

“It was patchy in places, sometimes wispy and thin,” Ayotte explained in an email. “In other places it appeared to be a solid mass.

There was no smell, but it also didn’t appear to break the surface of the lake.”

The Ministry of Environment received word of the bloom on Friday. Ministry spokesperson David Karn said in an email Tuesday, May 26, that the ministry’s water quality section staff were aware of the bloom and were “monitoring the situation by reviewing water-quality monitoring information,” and were also in contact with Interior Health.

Ayotte said last week’s weather and lake conditions  – unusually warm temperatures and calm waters – were conducive to algae blooms, as seen in Shuswap Lake in 2008, and in Shuswap and Mara lakes in 2010. On his return trip  Sunday, with the cooler temperatures and heavy rains, he said he could no longer see any signs of what he saw Friday.

Ministry staff have found pockets of ochromonas, a single-celled algae most common in spring and in nutrient-poor waters, they haven’t found anything amounting to the blooms of previous years. They are also finding a lot of pollen on the lakes right now which, when it sinks into the water, can look like algae.

From what he saw Friday, however, Ayotte stressed the need for better management of the Shuswap watershed

Shuswap Environmental Action Society president Jim Cooperman agrees, calling for an active Shuswap Watershed Council, as well as point-source monitoring of suspected nutrient sources, specifically agricultural operations along the Shuswap River.

“They’ve identified nutrient spikes in the river and in Mara Lake, but they can’t tell you where it comes from,” said Cooperman. “The point-source monitoring will tell you the source of the nutrients.”

Columbia Shuswap Regional District Area C South Shuswap director and watershed council chair, Paul Demenok, called news of the recent bloom “distressing,” and said the council  – comprised of local and regional governments, First Nations and B.C. government agencies – would have to “redouble our efforts with monitoring and mitigation plans.”

But Demenok adds the council is still in the process of establishing the sustained funding needed to focus on problems like this. As for determining nutrient sources, he said that would be one of the goals of the council’s five-year plan.

“There have been suggestions the sources are agricultural,” said Demenok. “We still need to confirm that, we still need to do the science that points to the sources of phosphorous in the Shuswap, Salmon and Eagle rivers.”

Cooperman says all governments that rely on the Shuswap watershed should take heed of the bloom and support the watershed council in moving ahead.

“The entire region is dependent on the health of the lake,” said Cooperman. “If we let it go downhill, and we get more algae blooms year after year, it may decrease visitation and affect the whole economy.”

Just Posted

In Photos: CP Rail Holiday Train lights up Sicamous

The stop on the train’s Canada-wide journey came with a $5,500 donation to local food bank.

Update: Collision cleared on Highway 97B south of Salmon Arm

The crash took place at the highway’s intersection with Deep Creek Road.

Chances Gaming Centre evacuated due to ‘security issue’

Patrons were evacuated at approximately 8:45 p.m.

Salmon Arm pharmacies continue to experience flu vaccine shortage

One pharmacy has privately sourced vaccine in stock, available for purchase

VIDEO: Success of wildlife corridors in Banff National Park has advocates wanting more

Demand for more highway protection escalated after seven elk were killed by a semi-trailer near Canmore

Column: Kid’s growing up fast on Old Town Road

In Plain View by Lachlan Labere

RCMP officer volunteers as designated driver

Princeton’s two largest employers ensure safe rides for Christmas parties

Pacioretty scores 2, Golden Knights top Canucks 6-3

Vegas goalie Fleury gets win No. 452

B.C. VIEWS: Hunger does not end with the season

Despite innovations in food distribution, the need is still there in B.C. communities

Kelowna RCMP officer suspended after allegedly sexting assault victim

RCMP confirm investigation but hold back details

Legendary primatologist coming to Okanagan

Dame Jane Goodall, founder of the Jane Goodall Institute, will present in Vernon Tuesday, March 24

Old Christmas card has ties to Summerland agriculture

Card was sent by former director of Summerland Research Station

Fans sing Canadian anthem after sound system breaks at BMW IBSF World Cup

The Canadians in attendance made sure their team and flag were honoured on the podium

Most Read