Harp Lake, Ontario

The forested watershed area around Harp Lake is around 4.7 km2 and comprises six streams and shoreline runoff.

The Na and Cl concentrations are predicted to have little to no effect on soft-water organisms even though their tolerance to salt is low.

The Dorset Environmental Science Centre includes tributary sampling and a meteorological station.

[4] There has been an increased thermal stability since 1970 that is caused by the high temperature extremities that occur during summer and fall rather than the length of time Harp Lake has no ice on the surface.

[7] Research that was completed in 1996 found that Harp Lake has a high gross settling of steady-state total phosphorus.

Also, there have been high septic total phosphorus level that have reach the littoral zone in Harp Lake.

In contrast to the decrease in zooplankton species richness Bythotrephes have been known to increase the densities of rotifer populations specifically the Conochilus unicornis.

[9] Harp Lake contains the species Coregonus artedi (cisco) which is a cold-water planktivorous fish.

Planktivorous fish ability to hunt is impacted by light availability and the frequency of encounter.

Researchers found that in the spring the peak daytime refuge thickness was negative and did not show any correlation to the relationship between C. artedi and Bythotrephes death rates.

[11] Perca flavescens (yellow perch) is a warm water planktivorous fish that is found in Harp Lake.