Canadian Aquatic Resources Section of the American Fisheries Society

Freshwater Fish Survey



As a part of a research project in the Mandrak lab at the University of Toronto Scarborough, we are testing the reliability of freshwater fish identification based on photographs of fish viewers. To do this, we are looking for volunteers to participate in surveys where participants will be asked to identify fishes based on images.  If you are interested in aiding our research and exercising your fish ID skills, please read on.


To minimize the time commitment of survey takers, we have prepared 20 short (~10 min) surveys, each with 5 different images. Each image contains a group of small freshwater fishes of varying species composition caught in Canada. As we would like an equal response rate to each survey, we ask that you randomly select the number (1-20; on your own or online (random number generator) of the first survey that you complete.


If you wish to complete more surveys, simply do the next survey in numerical order. A link is provided on the end page of the survey you have just completed: this will take you to another survey with new images. You can complete as many surveys as you wish (all 20 if you are up to the task!), but please do not complete the same survey multiple times.


Please complete survey(s) by August 26.


Please feel free to distribute this email and thanks for considering participating in our research!




Nick Mandrak and Conrad Pratt



Survey 1: 
Survey 2: 
Survey 3: 
Survey 4: 
Survey 5: 
Survey 6: 
Survey 7: 
Survey 8: 
Survey 9: 
Survey 10: 
Survey 11: 
Survey 12: 
Survey 13: 
Survey 14: 
Survey 15: 
Survey 16:
Survey 17: 
Survey 18: 
Survey 19: 
Survey 20: 



Nicholas E. Mandrak, PhD

Associate Professor

Department of Biological Sciences

University of Toronto Scarborough

1265 Military Trail

Toronto, ON M1C 1A4

Tel:  416 208 2248

Fax: 416 287 7676


UTSC Conservation and Biodiversity Graduate Program

Similar posts
  • Tracking Walleye in Hamilton Hab... Written by Jill Brooks, 2016 MSc. Larkin co-Awardee, follow her on Twitter too, @jillbrooks85! I am currently an MSc student, supervised by Dr. Steven Cooke in the Fish Ecology and Conservation Physiology Lab at Carleton University in Ottawa. My research focuses on the movement of fish in response to various habitat restoration efforts in Hamilton Harbour at the western end of [...]
  • Summer Research Assistantsh... Summer research assistantships are available with Nick Mandrak’s lab at the University of Toronto (Scarborough). See: JobDescription_FieldAssistant_UTSC for more [...]
  • The Changing Lake Nipissing Ecosys... MNRF’s Science and Research Branch invites you to participate in a Science Insights seminar entitled The Changing Lake Nipissing Ecosystem. This seminar will be held on Monday, March 29 (see details below). To request a WebEx line for this seminar, Feel free to share this invitation with other resource professionals who might find this topic of [...]
  • Ph.D. & M.Sc. – Habitat Offsetting for Freshwater Fishes in the Oil Sands Region of Alberta, Can... Enthusiastic, team oriented, and self-motivated students are encouraged to apply for a Ph.D. and MSc positions to conduct research on habitat offsetting for freshwater fishes in the Oil Sands Region of Alberta, Canada. This project is a multi-disciplinary collaboration between the University of Alberta, and industrial and government sponsors. Main project goals include: i) identifying food-web dynamics of newly created [...]
  • CO2 Fish Barriers Re-blogged from the Fisheries B... This week the Fisheries Blog describes how carbon dioxide can be used as a barrier for fish movement. This work should be of particular interest to CARS members, as there is hope that this technology could be used to prevent Asian carp, like Silver and Bighead Carp from entering the Great Lakes via the Chicago Sanitary and Shipping Canal. Also, much of the ‘proof [...]