Madge Lake - Environmental Concerns

Environmental Concerns

The large amount of tourism development around the lake is the cause of growing environmental concern. Winter-time use of the park has especially increased with the development of the year-round lodge. The lake simply isn't as quiet as it used to be. The lake is now regarded as having reached its development potential and there exists considerable opposition to further development. Some proposed development projects - such as the increase in the number of cottages in Benito subdivision - have been shelved, and probably abandoned.

Also of concern is the lake's fluctuating water level, which had dropped by more than a metre between the early 1960s and the late 1970s. The lake, being located on a rise of land, has a very small cachement area and so its level is very susceptible to variations in annual rainfall. The lake is also relatively shallow with a largely flat bottom, making even a small change in water level noticeable at the lakeshore. The shoreline had become disagreeably mucky as a result of the decline in water level. And an outlet stream draining the lake to the north ceased flowing in the early 1970s, increasing concerns of eutrophication and stagnation of the lake water. However, the lake had by the late 1990s risen again by some 60 cm from its lowest levels of the late 1970s. While welcome, this rise drowned many young trees along the water edge, particularly on the north shore which became clothed in dead saplings. Emergent marsh plants (notably Scirpus, Typha, and Phragmites) had also overtaken much shore line with the resubmergence of formerly dry lake bottom. The water level dropped again during the very dry year of 2000, but has since risen again, and had reached very high levels following the very wet summer of 2010 and snowy winter of 2010/2011. Some recreational facilities, such as the boat launch facility on the lake's north-east corner, have been rendered inaccessible by the high water levels, and very little visible beach sand remains at the Pickerel Point or Ministik swimming areas.

The variable water level has also caused other recent changes to the lake. At the time of lowest water level in the late 1970s, the lake's largest island, Spruce Island, was connected by dry land to the mainland, and a large gravel bar in the lake's north basin was exposed. Now, however, the land corridor to Spruce Island is bisected by a stretch of marsh. The gravel bar has similarly been resubmerged, becoming a hazard to boating and unfortunately extirpating the colony of common terns and herring gulls that bred there. These two species are no longer commonly seen on the lake now that their breeding site has drowned, but the recent rise in water level is to the apparent benefit of the lake's common loon, red-necked grebe, and beaver populations. Ducks are also thriving in the stretches of now-flooded shoreline. And fish catches have improved markedly since the low water days of the late 1970s.