Lake Lulu

Where Lake Lulu is

Lake Lulu lies in the District of Kenora.

How deep is Lake Lulu?

The deepest mapped contour on Lake Lulu is 14.0 meters, and the water within that boundary descends even farther. Ontario’s bathymetry record holds 24 depth contours for Lake Lulu.

See also Ontario's Largest and Deepest Lakes

Surveyed Depths

Ontario has surveyed the depths of several thousand of its lakes over more than half a century. Later surveys were conducted by boat with satellite positioning and produced hundreds of thousands of soundings per lake. Earlier surveys were charted by running transects across the water and drawing depth contours by hand.

Water quality

Ontario’s Lake Partner Program is a volunteer monitoring network. Participants collect water samples for phosphorus analysis and measure water clarity through the summer with a Secchi disk. Most sites are sampled for phosphorus once a year, in spring, and some several times a year between spring and fall. Phosphorus in many lakes rises through the summer, so the two kinds of average are measured on different bases.

Phosphorus is the nutrient that controls how much algae a lake can grow. A lake with little phosphorus stays clear and supports cold-water fish such as lake trout. As phosphorus rises, algae increase, the water clouds, and oxygen in the deep water falls as the algae decay. The province classifies each monitoring site by its average phosphorus:

• Oligotrophic, below 10 micrograms per litre: clear water and low algae.
• Mesotrophic, from 10 to 20: moderately productive water, with more algae and weed growth than an oligotrophic lake but rarely a bloom.
• Eutrophic, above 20: nutrient-rich water, prone to algal blooms and low oxygen at depth.

Lake Lulu has 8 Lake Partner monitoring sites. Five have reported phosphorus for the three or more years the province requires before a status is assigned. Three of those sites are classified mesotrophic and two eutrophic.

The longest record is held by site 7148/1 at Webb's Rd- W Laclu, with phosphorus sampled once a year over 23 years to 2025. Its long-term mean phosphorus concentration is 18.54 micrograms per litre, within the mesotrophic band, which runs from 10 to 20.

A Secchi disk is a white or black-and-white plate lowered on a marked line until it disappears from view. The depth at which it vanishes is the Secchi depth, a direct measure of water clarity. Clearer water gives a deeper reading.

The 186 clarity readings at site 7148/1 give a median Secchi depth of 2.55 meters.

Median Secchi depth by year at site 7148/1

See also Lake Water Quality and Blue-Green Algae in Ontario

Fish in Lake Lulu

Ontario’s aquatic resource records name 11 fish species in Lake Lulu. The province’s other records for the lake name one further species, brook trout. It appears in the records below.

Popular species in the province’s records

• Ciscotrout and whitefish
• Northern Pikepike
• Walleyeperch
• Yellow Perchperch
• Smallmouth Basssunfish
• Black Crappiesunfish
• Rock Basssunfish

Spawning areas

Ontario maps 2 fish spawning records within the Lake Lulu outline, for two different species, and all of them are mapped below. Every record is recorded as verified and presently suitable, and none is classed as sensitive.

By number of records

By area mapped

• Walleye1 area900 m²
• Northern Pike1 area8.8 ha

The federal Fisheries Act prohibits the harmful alteration, disruption or destruction of fish habitat without an authorization, so a dock, dredging, infill or shoreline work at a mapped spawning area is reviewed on that basis.

Stocking history

Ontario’s stocking records for Lake Lulu run from 1947 to 1957 and hold 12 releases. Walleye account for most of the fish: 5,200,000 released in eight of the years between 1947 and 1956. The last recorded release was 1,000,000 brook trout eggs in 1957.

The province’s record of stocking for recreational fishing, kept from 2016, lists no release into Lake Lulu.

Fisheries Management Zone 5

Lake Lulu lies in Fisheries Management Zone 5. Ontario sets its fishing seasons and catch limits by zone.

Fisheries management zones around Lake Lulu

Zone-wide, Smelt may not be used as bait or possessed for use as bait.

See also Fishing Seasons in Ontario, Zone by Zone and Fish Stocking in Ontario Lakes

Islands and names

Lake Lulu contains six islands in the Ontario Hydro Network’s outline, one of them over 10 hectares and three under a tenth of a hectare. Indian Island, at 11 hectares, is larger than the next five together, which cover 6.9.

Official names

Ontario’s geographic names register lists 4 official names on the water and its islands: 3 islands and one bay. A further 1 named point stands on the mainland shore.

Bays 1

• Rice Bay

Points on the shore 1

• Pincushion Point

Nearby lakes

• Black Sturgeon Lakes21 km away
• Malachi Lake26 km away
• Longpine Lake30 km away
• Lake of the Woods54 km away

All lakes

Questions about Lake Lulu

• How deep is Lake Lulu?

  Its deepest charted contour is 14 meters, and the water within it is deeper.

• How big is Lake Lulu?

  Its surface covers 4.7 square kilometers and it holds 6 islands. Of its 24 kilometers of shoreline, 20 kilometers is the mainland shore and 4 kilometers is the shore of the islands.

• What fish are in Lake Lulu?

  Ontario’s aquatic resource records name eleven species, among them walleye, smallmouth bass, northern pike, yellow perch and black crappie. The lake’s spawning, consumption and stocking records also name brook trout.