Biosecurity at the farm level can be defined as the management practices enabling producers to prevent the movement of disease-causing agents onto and off of agricultural operations. Read More >

Disease Surveillance Reports

2020

12 Jan , 2021

2019

23 Jan , 2020

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

16 Jul , 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!

30 Jul , 2018

Click here to download the June 2018 Aquatic Animal Health Report

Annual Reports

09 Mar , 2020

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

10 Feb , 2020

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 …

2018

20 Dec , 2018

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

30 Jul , 2018

Click here to download the June 2018 Aquatic Animal Health Report

Annual Report

09 Mar , 2020

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

24 Apr , 2018

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

2017

20 Mar , 2018

Click here to download the Q4 2017 Aquatic Animal Health Report

23 Aug , 2017

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

2016

04 Apr , 2017

30 Sep , 2016

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

2015

18 Jun , 2015

Click here to read the Q1 2015 Fish Vet Report

Resources

Research and Projects

21 Apr , 2023

16 Nov , 2022

08 Mar , 2021

23 May , 2018

Executive summary, full report, and poster for the OAHN Fish research project.

Veterinary Resources

20 Apr , 2023

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

20 Apr , 2021

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

30 Oct , 2019

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

Aquaculture Videos for Veterinarians

20 Apr , 2023

04 Oct , 2019

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

26 Aug , 2015

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

12 Aug , 2015

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

29 Jul , 2015

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

06 Jul , 2015

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.

Veterinary Case Studies

08 Feb , 2021

30 Aug , 2019

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 …

11 Mar , 2019

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

Industry Resources

20 Apr , 2023

12 Jan , 2022

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

07 Dec , 2021

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

20 Apr , 2021

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

08 Feb , 2021

04 Oct , 2019

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

30 May , 2017

5 myths about aquaculture debunked by the OAHN Fish Network.

Continuing Education and Fact Sheets

20 Apr , 2023

20 Apr , 2021

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

08 Feb , 2021

17 Jun , 2020

Infosheet highlighting bacterial kidney disease in Ontario fish

23 Jan , 2019

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.

11 Jul , 2017

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

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

Continuing Education Videos

20 Apr , 2023

12 Jan , 2022

07 Dec , 2021

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

20 Apr , 2021

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

08 Feb , 2021

04 Oct , 2019

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

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

Helpful Links and Contact Information

20 Apr , 2023

20 Apr , 2021

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

09 Oct , 2015

A list of industry and government contacts.

24 Jun , 2015

These links are a great starting point for fish vets and producers.

Ontario Aquaculture Water Quality reports

20 Apr , 2023

10 May , 2022

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 …

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