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Humane Harvest for Recreational Fishers – Thinkific Course

Part of our Short Course series, this course is designed for recreational fishers to learn about options for humane harvest. Read More >

Ontario Animal Health Network Fish logo

Humane Slaughter for Aquaculture Producers – Thinkific Course

Part of our Short Course series, this course is designed for aquaculture producers to learn about the different options for humane slaughter. Read More >

Disease Surveillance Reports

Disease Surveillance Reports
2019

23 Jan , 2020

Aquatic Animal Health Report December 2019

The Q3 and Q4 2019 edition of the OAHN Fish Network’s Aquatic Animal Health Report is now available.

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16 Jul , 2019

Aquatic Animal Health Report July 2019

The July 2019 edition of the OAHN Fish Network’s Aquatic Animal Health Report is now available.
Featuring: a disease spotlight on Columnaris disease, aquatic veterinary services summary for Ontario, laboratory news on bacterial gill disease diagnosed with nodular gill disease.. and more!

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30 Jul , 2018

Aquatic Animal Health Report – June 2018

Click here to download the June 2018 Aquatic Animal Health Report

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Annual Reports

09 Mar , 2020

Annual OAHN Public Health Updates

Created especially for public health professionals in Ontario, highlighting pertinent topics the OAHN companion animal network’s reports.

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10 Feb , 2020

Ontario Animal Health Network Annual Update

The annual OAHN Update reviews the past year at a glance, Information sharing initiatives, Disease investigations, and our OAHN network members from all of the OAHN networks. Take a few moments to read through and review how the OAHN disease surveillance networks worked to improve animal health in Ontario. OAHN Annual Update 2018-2019 OAHN L’année …

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2018

20 Dec , 2018

Aquatic Animal Health Report – Q4 2018

Check out the latest report, with an aquatic veterinary services summary, disease spotlight, provincial and national updates, and lab news.

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30 Jul , 2018

Aquatic Animal Health Report – June 2018

Click here to download the June 2018 Aquatic Animal Health Report

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Annual Report

09 Mar , 2020

Annual OAHN Public Health Updates

Created especially for public health professionals in Ontario, highlighting pertinent topics the OAHN companion animal network’s reports.

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24 Apr , 2018

Staying Ahead of the Curve Magazine: The Disease Surveillance Plan 2013-2018

Detailing what the DSP and OAHN completed from 2013-2018, including summaries by network, research projects, equipment purchased, tests developed, and much more.

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2017

20 Mar , 2018

Aquatic Animal Health Report – Q4 2017

Click here to download the Q4 2017 Aquatic Animal Health Report

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23 Aug , 2017

Aquatic Animal Health Report – Q1 and Q2 2017

The OAHN Fish Network report contains an aquatic veterinary services summary, disease spotlight, provincial and federal updates, and more.

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2016

04 Apr , 2017

Fish Producer Report – Q4 2016

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30 Sep , 2016

Fish Producer Report – Q2 2016

The latest fish producer report discusses disease summary, provincial and federal updates, and the OAHN research project.

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2015

18 Jun , 2015

Fish Vet Report – Q1 2015

Click here to read the Q1 2015 Fish Vet Report

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Resources

Veterinary Resources

14 Dec , 2023

Arctic Char Case Study

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20 Apr , 2023

Video: Lactococcosis – The Ontario Rainbow Trout Aquaculture Perspective with Dr. Veronique LePage

Resources for Aquaculture Biosecurity: Aquaculture Biosecurity Fact Sheet Aquatic Biosecurity manual: https://www.oahn.ca/wp-content/uploads/2022/12/Aquaculture-Biosecurity-Manual.pdf Biosecurity for Aquaculture Producers: https://alma-s-school-8ebe.thinkific.com/courses/biosecurity-for-aquaculture-producers

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20 Apr , 2021

An Emerging Fish Parasite in Ontario

The Ontario Animal Health Network (OAHN)-Aquatic Animals is looking for evidence of a novel fish louse species that may be spreading across Ontario.

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30 Oct , 2019

Fish Resources for Veterinarians

Find publications, videos, and other veterinary resources related to aquaculture.

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Aquaculture Videos for Veterinarians

09 Jan , 2024

Humane Slaughter for Aquaculture Producers – Thinkific Course

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20 Apr , 2023

Video: Lactococcosis – The Ontario Rainbow Trout Aquaculture Perspective with Dr. Veronique LePage

Resources for Aquaculture Biosecurity: Aquaculture Biosecurity Fact Sheet Aquatic Biosecurity manual: https://www.oahn.ca/wp-content/uploads/2022/12/Aquaculture-Biosecurity-Manual.pdf Biosecurity for Aquaculture Producers: https://alma-s-school-8ebe.thinkific.com/courses/biosecurity-for-aquaculture-producers

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04 Oct , 2019

Private: Aquaculture Videos for Veterinarians

Videos on anesthetizing and euthanizing rainbow trout, vaccinating tilapia and infectious hypoderm and heamatopoitic necrosis in shrimp.

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26 Aug , 2015

Private: The Necropsy in Veterinary Medicine – Part 4

Learn about placement, incisions, postmortem tips, removing the brain, rabies and toxic plants.

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12 Aug , 2015

Private: The Necropsy in Veterinary Medicine – Part 3

Learn about identification, examination, protection and maintaining you tools for a postmortem.

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29 Jul , 2015

Private: The Necropsy in Veterinary Medicine – Part 2

Learn about the principles of a postmortem, euthanasia, understanding postmortem changes, and more.

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06 Jul , 2015

Private: The Necropsy in Veterinary Medicine – Part 1

To go along with our five part podcast on Veterinary Postmortems, we have seven write-ups from Dr. Nick Nation of the University of Alberta. This is part one.

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Veterinary Case Studies

14 Dec , 2023

Solving the Mystery: A Guide to Identifying and Treating a Recent Disease in Arctic Char

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Arctic Char Case Study

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08 Feb , 2021

CASE STUDY: Humane Slaughter for Small to Medium Size Aquaculture Producers

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30 Aug , 2019

Private: OAHN Fish network Case Study #2: Columnaris disease

OAHN Fish network case study: Columnaris disease with concurrent fungal infection in Arctic char Arctic char fish present with white to tan multifocal ulcers surrounding the dorsal fin, extending towards the head and down to the pectoral fins as well as on the caudal fin and peduncle. Some have exposure of underlying muscle tissue. Many of the …

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11 Mar , 2019

Private: OAHN Fish Network Case Study: Bacterial Gill Disease & Gill Amoebae

A clinical case study and reference paper on Bacterial and amoebic gill disease in fish from the OAHN Fish network.

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Industry Resources

09 Jan , 2024

Humane Harvest for Recreational Fishers – Thinkific Course

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Humane Slaughter for Aquaculture Producers – Thinkific Course

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14 Dec , 2023

Solving the Mystery: A Guide to Identifying and Treating a Recent Disease in Arctic Char

Read More >

20 Apr , 2023

Video: Lactococcosis – The Ontario Rainbow Trout Aquaculture Perspective with Dr. Veronique LePage

Resources for Aquaculture Biosecurity: Aquaculture Biosecurity Fact Sheet Aquatic Biosecurity manual: https://www.oahn.ca/wp-content/uploads/2022/12/Aquaculture-Biosecurity-Manual.pdf Biosecurity for Aquaculture Producers: https://alma-s-school-8ebe.thinkific.com/courses/biosecurity-for-aquaculture-producers

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12 Jan , 2022

Fish Health Tracking Project

CAHSS and the CWHC has created a fish health tracking project. Find more details below, and click here to access the tracker: https://cwhc.wildlifesubmissions.org/#/finfish-en Download a PDF of the infographic here: https://www.oahn.ca/wp-content/uploads/2022/01/Infographic-Fish-Health-Tracking-Project-final-EN.pdf  

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07 Dec , 2021

Aquaculture Biosecurity Fact Sheet

To protect your farm from disease transmission, biosecurity is the best prevention.

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20 Apr , 2021

An Emerging Fish Parasite in Ontario

The Ontario Animal Health Network (OAHN)-Aquatic Animals is looking for evidence of a novel fish louse species that may be spreading across Ontario.

Read More >

08 Feb , 2021

Humane Slaughter for Small to Medium Size Aquaculture Producers

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CASE STUDY: Humane Slaughter for Small to Medium Size Aquaculture Producers

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04 Oct , 2019

Aquaculture Videos for Industry

Videos about tilapia vaccination and infectious hypodermal and heamatopoitic necrosis in shimp.

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30 May , 2017

Infographic: Common Myths About Aquaculture

5 myths about aquaculture debunked by the OAHN Fish Network.

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Continuing Education and Fact Sheets

20 Apr , 2023

Video: Lactococcosis – The Ontario Rainbow Trout Aquaculture Perspective with Dr. Veronique LePage

Resources for Aquaculture Biosecurity: Aquaculture Biosecurity Fact Sheet Aquatic Biosecurity manual: https://www.oahn.ca/wp-content/uploads/2022/12/Aquaculture-Biosecurity-Manual.pdf Biosecurity for Aquaculture Producers: https://alma-s-school-8ebe.thinkific.com/courses/biosecurity-for-aquaculture-producers

Read More >

20 Apr , 2021

An Emerging Fish Parasite in Ontario

The Ontario Animal Health Network (OAHN)-Aquatic Animals is looking for evidence of a novel fish louse species that may be spreading across Ontario.

Read More >

08 Feb , 2021

Humane Slaughter for Small to Medium Size Aquaculture Producers

Read More >

CASE STUDY: Humane Slaughter for Small to Medium Size Aquaculture Producers

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17 Jun , 2020

Bacterial Kidney Disease Infosheet

Infosheet highlighting bacterial kidney disease in Ontario fish

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23 Jan , 2019

Winterkill: Aquatic Animal Tipsheet

Winterkill is the most common fish mortality event and is generally caused by
a depletion of dissolved oxygen, especially in backyard ponds and smaller
bodies of water. Check out this tipsheet by the OAHN Aquatic Animal network for more information.

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11 Jul , 2017

Fact Sheet: Whirling Disease (for Fish Farmers)

These quick facts will help fish farmers recognize whirling disease and avoid spreading it.

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Fact Sheet: Whirling Disease (for Recreational Water Users)

Find out what whirling disease is, and how to avoid spreading this disease.

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Continuing Education Videos

09 Jan , 2024

Humane Harvest for Recreational Fishers – Thinkific Course

Read More >

Humane Slaughter for Aquaculture Producers – Thinkific Course

Read More >

14 Dec , 2023

Solving the Mystery: A Guide to Identifying and Treating a Recent Disease in Arctic Char

Read More >

20 Apr , 2023

Video: Lactococcosis – The Ontario Rainbow Trout Aquaculture Perspective with Dr. Veronique LePage

Resources for Aquaculture Biosecurity: Aquaculture Biosecurity Fact Sheet Aquatic Biosecurity manual: https://www.oahn.ca/wp-content/uploads/2022/12/Aquaculture-Biosecurity-Manual.pdf Biosecurity for Aquaculture Producers: https://alma-s-school-8ebe.thinkific.com/courses/biosecurity-for-aquaculture-producers

Read More >

12 Jan , 2022

Fish Health Tracking Project

CAHSS and the CWHC has created a fish health tracking project. Find more details below, and click here to access the tracker: https://cwhc.wildlifesubmissions.org/#/finfish-en Download a PDF of the infographic here: https://www.oahn.ca/wp-content/uploads/2022/01/Infographic-Fish-Health-Tracking-Project-final-EN.pdf  

Read More >

07 Dec , 2021

Aquaculture Biosecurity Fact Sheet

To protect your farm from disease transmission, biosecurity is the best prevention.

Read More >

20 Apr , 2021

An Emerging Fish Parasite in Ontario

The Ontario Animal Health Network (OAHN)-Aquatic Animals is looking for evidence of a novel fish louse species that may be spreading across Ontario.

Read More >

08 Feb , 2021

Humane Slaughter for Small to Medium Size Aquaculture Producers

Read More >

CASE STUDY: Humane Slaughter for Small to Medium Size Aquaculture Producers

Read More >

04 Oct , 2019

Aquaculture Videos for Industry

Videos about tilapia vaccination and infectious hypodermal and heamatopoitic necrosis in shimp.

Read More >

Private: Aquaculture Videos for Veterinarians

Videos on anesthetizing and euthanizing rainbow trout, vaccinating tilapia and infectious hypoderm and heamatopoitic necrosis in shrimp.

Read More >
Ontario Aquaculture Water Quality reports

09 Jan , 2024

Humane Harvest for Recreational Fishers – Thinkific Course

Read More >

20 Apr , 2023

Video: Lactococcosis – The Ontario Rainbow Trout Aquaculture Perspective with Dr. Veronique LePage

Resources for Aquaculture Biosecurity: Aquaculture Biosecurity Fact Sheet Aquatic Biosecurity manual: https://www.oahn.ca/wp-content/uploads/2022/12/Aquaculture-Biosecurity-Manual.pdf Biosecurity for Aquaculture Producers: https://alma-s-school-8ebe.thinkific.com/courses/biosecurity-for-aquaculture-producers

Read More >

10 May , 2022

Ontario Aquaculture Water Quality reports

Ontario’s net-pen fish farmers understand that a healthy environment means healthy fish. Towards this end, they monitor the effects of their fish farms on water quality of the local ecosystem. This site was designed under a One Health approach to transparently share all environmental data from existing farms about how they fit into the overall …

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Team Members

Dr. Alexandra Reid

Co-lead

OMAFRA

Dr. Marcia Chiasson

Co-lead

University of Guelph

Mykolas Kamaitis

Co-lead

Private Practitioner

Foster Scott

Private Practitioner

Dr. Veronique LePage

Private Practitioner

Dr. Lois Valli

CFIA

Dr. Doran Kirkbright

OMAFRA

Kerry Hobden

OMNRF

Peter Addison

OMNRF

Kana Upton

Industry

Arlen Taylor

Industry

Steve Naylor

DFO

Dr. Hein Snyman

Animal Health Laboratory

Dr. Tim Pasma

Epidemiologist

OMAFRA

Dr. Tanya Rossi

OAHN Coordinator

Animal Health Laboratory