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Emerald Bowfin |
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Name and Code |
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Taxonomic Authority |
Richardson 1836 |
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Common Name(s) |
Emerald Bowfin |
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French Name |
poisson-castor émeraude |
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Conservation Status |
Global Rank (GRank) |
G5 (2016-02-09) |
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National Rank (NRank) |
N4N5 (2016-02-09) |
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Provincial Rank (SRank) |
S4 (1988-11-22) |
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Ecological Value |
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Economic Importance |
coarse fish |
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Length-Weight Regression Coefficents |
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Habitat and Feeding |
General Habitat(s) |
lacustrine; riverine |
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Environment |
benthopelagic |
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Habitat Preference |
warm, weedy lake embayments and sluggish pools and backwaters of lowland rivers; preferred water temperature range 28-32°C |
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Reproduction |
Reproductive Guild |
Guarders: Nest spawners: Phytophils |
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Spawning Habitat(s) |
lacustrine |
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Spawning Month(s) |
May-June |
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Spawning Temperature (°C) |
16-19 |
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Nursery Habitat(s) |
lacustrine |
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Size and Age |
Adult Length (cm) |
38.1-68.6 TL |
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Adult Weight (kg) |
0.6-3.3 |
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Age at Maturity (yrs) |
3-4 (m); 4-5 (f) |
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Maximum Length (cm) |
92.7 TL |
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Lifespan (yrs) |
6 (m); 10-12 (f) |
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Ontario Records |
Record Length (cm) |
83.5 TL |
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Ontario Range Map |
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Ontario Distribution |
Great Lakes (except Superior) and tributaries, St. Lawrence River, Lake Nipissing, Lake Simcoe, Lake-of-the-Woods |
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Photographs |
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Notes |
tolerant of high water temperature (35°C), turbidity and low dissolved oxygen; females attain larger size than males |
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Information Sources |
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Carlander, K.D. 1969. Handbook of freshwater fishery biology. Volume one. Life history data on freshwater fishes of the United States and Canada, exclusive of the Perciformes. Iowa State University Press. Ames, IA. vi + 752 pp. |
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