Mussels of Lakelse Lake

Mussels of Lakelse Lake

The name Lakelse pays tribute to the mollusks that live throughout Lakelse Lake and Lakelse River. The name comes from the Coast Tsimshian word "LaxGyels" which means "freshwater mussel". Mussels are effective indicators of water quality as they are filter feeders. They have a sensitivity to low dissolved oxygen levels, as well as siltation. Since they are unable to remove themselves from an unhealthy environment, fluctuations in the population can be indicative of environmental stressors.

Mussel Project Report 2021

Freshwater Mussels Interpretive Event

An interpretive event was hosted at Furlong Bay Campground on August 13th, 2021. A booth was set up on the beach and those in attendance were provided with information about the three mussel species that reside in Lakelse Lake. Additional topics discussed include the life cycle of a mussel, the importance of mussels, and the anatomy of a mussel. Presenters then outlined how mussels can be used as indicators for ecosystem health. Informational pamphlets were handed out, and members discussed opportunities to volunteer with the mussel project.

A section of the pamphlet handed out at the mussel interpretive event

Interpretive Signage

An interpretive sign providing information on the freshwater mussels living in Lakelse Lake was installed at Furlong Bay Campground in June 2022. This allows members of the public to learn about the traditional and environmental significance of these mollusks as they visit the lake.

Mussel and Water Sample Collection

Mussels were collected at sites representing different environments around the lake. The mussels were sent to a laboratory where they were tested for heavy metals. Water samples, taken from the same sites where the mussels were harvested, were also tested for heavy metals. A total of 10 mussel and 12 water samples were submitted to the lab for testing. The lab results are now awaiting final interpretation.

Water quality data was also collected at the selected mussel harvest sites using a YSI ProDSS. Readings were taken for water temperature (°C), turbidity (NTU), water depth (meters), pressure (mmHg), dissolved oxygen (% and mg/L), conductivity (μS/cm), and pH.