Pygmy Whitefish
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Name and Code Family Salmonidae - trouts and salmons Species Prosopium coulterii Taxonomic Authority (Eigenmann & Eigenmann 1892) Common Name(s) Pygmy Whitefish French Name ménomini pygmée Species Code 101 Family TSN 161931 Parent TSN 162007 Species TSN 162011 Conservation Status Global Rank (GRank) G5 (2008-01-15) National Rank (NRank) N21, N1N22 (2017-12-22) Provincial Rank (SRank) SU (1997-10-10) COSEWIC Status Threatened1, Data Deficient2 (Nov 2016) SARO Status Not at Risk1, Data Deficient2 (2017) AFS Status none Status Notes (1) Great Lakes-Upper St. Lawrence populations; (2) Saskatchewan-Nelson Rivers populations Ecological Value Ontario Origin native General Abundance limited distribution Tolerance intolerant Economic Importance none Length-Weight Regression Coefficents Intercept (a) -5.4619 Slope (b) 3.1346 Length Basis TL				Habitat and Feeding General Habitat(s) lacustrine; riverine Environment benthopelagic Trophic Class invertivore Thermal Regime coldwater Habitat Preference cold, deep waters (18-90 m) of lakes, usually >30 m; preferred water temperature <10°C Reproduction Reproductive Guild Nonguarders: Open substratum spawners: Lithophils Spawning Habitat(s) lacustrine; riverine Spawning Season fall Spawning Month(s) November-December Spawning Temperature (°C) 0.5-4 Fecundity 93-1,412 Nursery Habitat(s) lacustrine Size and Age Adult Length (cm) 9.1-15.1 TL Adult Weight (kg) 0.004-0.023 Age at Maturity (yrs) 2 (m); 3 (f) Maximum Length (cm) 27.1 FL Maximum Weight (kg) 0.163 Lifespan (yrs) 5-7 (m); 7-9 (f) Ontario Records Record Length (cm) 14.2 TL Record Weight (kg) none				Ontario Range Map Ontario Distribution Lake Superior, northwestern Ontario (Delaney Lake, Silver Lake, Winnange Lake, Mameigwess Lake) Saskatchewan - Nelson River basin Photographs Notes Lake Superior population discovered in 1952 is over 1,600 km outside the normal range (Pacific Northwest)
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