Slocan Lake Limnological Assessment Yr. 3

Ministry of Land, Water and Air Protection
$5,000
Nelson, BC

An assessment of Slocan Lake has been undertaken to develop a better understanding of water quality (e.g., nutrients), algal, zooplankton (in particular mysid shrimp) and fish productivity. In 2001, mysid shrimp numbers declined, possibly related to low spring run-off – which resulted in lower inputs of water and nutrients. Other zooplankton species (i.e., cladocerans) increased in biomass during the same period. By extending the assessment for a third year, scientists hope to improve their understanding of interactions between nutrient levels and zooplankton abundance. This information may be useful in fine-tuning fertilization projects on near-by Kootenay and Arrow lakes to help create conditions to benefit native zooplankton species rather than the introduced mysid shrimp. CKFRP have provided funding from Columbia Basin Trust to assist in data collection and interpretation and provide a public outreach component for this project.

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