Freshwater Tubenose Goby
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Name and Code Family Gobiidae - gobies Species Proterorhinus semilunaris Taxonomic Authority (Heckel, 1837) Common Name(s) Freshwater Tubenose Goby French Name gobie à nez tubulaire OMNRF Code 367 Family TSN 171746 Parent TSN 172079 Species TSN 172080 Conservation Status Global Rank (GRank) GNR (2013-01-18) National Rank (NRank) NNA (2017-12-22) Provincial Rank (SRank) SNA (1998-11-18) COSEWIC Status none SARO Status none AFS Status none Status Notes none Ecological Value Ontario Origin introduced General Abundance rare Tolerance intermediate Economic Importance invasive species Length-Weight Regression Coefficents Intercept (a) -5.0582 Slope (b) 3.0748 Length Basis TL				Habitat and Feeding General Habitat(s) lacustrine; riverine Environment benthic Trophic Class invertivore Thermal Regime coolwater Habitat Preference lower to middle reaches of rivers and nearshore of lakes (<5 m) with rocky substrates or sand with vegetative cover Reproduction Reproductive Guild Guarders: Nest spawners: Speleophils Spawning Habitat(s) lacustrine; riverine Spawning Season spring-summer Spawning Month(s) May-August Spawning Temperature (°C) 15-24 Fecundity 140-1,349 Nursery Habitat(s) lacustrine; riverine Size and Age Adult Length (cm) 4.5-7.7 TL Adult Weight (kg) 0.001-0.006 Age at Maturity (yrs) 1-2 Maximum Length (cm) 9.0 SL Maximum Weight (kg) no data Lifespan (yrs) 3-4 Ontario Records Record Length (cm) 8.5 TL Record Weight (kg) none				Ontario Range Map Ontario Distribution Thunder Bay Harbour (Lake Superior), Severn Sound (Georgian Bay), St. Clair River, Lake St. Clair, Thames River, Detroit River, western Lake Erie, eastern Lake Ontario, St. Lawrence River; introduced with ballast water and first reported from the St. Clair River in 1990 Photographs Notes native to tributaries of the Black Sea; tolerant of low dissolved oxygen; use as bait prohibited
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