Lake Trout Spawning Habitat

To meet the high angling pressures Haliburton Highlands was historically stocked by the Ministry of Natural Resources with lake trout brook trout rainbow trout etc which originate in.

Lake trout spawning habitat. The role of wind and physical characteristics on habitat quality 9 21 Introduction 10 22 Methods 13 221 Study site 13 222 Spawning habitat 15. If fishing for larger trophy size wild trout is important for the habitat then a spawning habitat will be important. In most lakes Lake Trout are usually found in 40 feet12 meters or less.

They prefer gravel pebble or pretty much any rocky bottom. Oxygen exceed 6 parts per million. These fish live in cold freshwater habitats.

2020-04-14 Lake trout are still spawning in at least one tributary to Lake Superior decades after the fishery collapsed. This habitat is predominately found near exposed shorelines off of points islands or on mid-lake shoals Martin and Olver 1980 and some glacial bedforms such as drumlins Riley et al 2014. Lake trout normally spawn during the fall months.

Their primary habitats include deep lakes and ponds. Rounded or angular rock about 5 to 50 cm diameter with interstice depths of 30 cm or more gave the best protection for eggs and fry. The depth of spawning varies greatly based on their distribution and body of water.

Spawning events occur at night when water temperatures are between 89 o C and 139 o C. Wagner Abstract Substrate where lake trout spawned and fry were produced or only fry were found is described and illustrated. Models for both ecotypes predicted stronger links to topographic variables than to substrate but substrate was more important for predicting Kokanee spawning habitat.

It is important to remember that all forms of rainbow trout migrate to rivers and streams ie even the steelheads and the lake trout return to rivers and streams to spawn. Current methods used to identify lake trout spawning locations are time- and labor-intensive and spatially limited. Suitable spawning habitat is essential for self-sustaining populations through natural reproduction.