Ontario Freshwater Fishes Life History Database

The online resource for Ontario’s Fisheries Professionals since 2002


Northern Pike

Welcome to the Ontario Freshwater Fishes Life History Database


A fully searchable database for all Ontario and adjacent Great Lakes freshwater fishes including introduced, extirpated and extinct species.

Contains current information pertaining to life history, habitat, size and age, distribution, conservation status, ecological value, reproduction and nomenclature for 156 species, 3 subspecies and 2 established hybrids.

Includes photographs, range maps, notes, Ontario record lengths and weights, length-weight regression coefficients, information sources, glossary of terms and related web links.


Search by:

Name or Code:  Common, French or Scientific name, Authority, Family, Taxonomic Serial Number or OMNRF species code

Conservation Status:  GRank, NRank, SRank, COSEWIC, SARO, AFS

Ecological Value:  origin, general abundance, tolerance and/or economic importance

Habitat and Feeding:  general habitat, environment, thermal regime and/or trophic class

Reproduction:  reproductive guild, spawning habitat, spawning season and/or nursery habitat


Search     Glossary of Terms     Web Links     Contact     About

Cite Ontario Freshwater Fishes Life History Database as:

Eakins, R.J. 2024. Ontario Freshwater Fishes Life History Database. Version 5.31. Online database. (https://www.ontariofishes.ca), accessed

If you find the OFFLHD a useful resource, please consider a donation. Thank you for your support.


If you are experiencing problems making a donation, please ensure your browser is set to accept cookies.

Supported by: Endorsed by:  
EcoMetrix American Fisheries Society Ontario Chapter

Interested in sponsoring the OFFLHD? Please contact for more information.


Last update:  19 March 2024