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All Official Reports of meetings in the Debating Chamber of the Scottish Parliament.
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Rural Affairs and Islands Committee
Meeting date: 5 June 2024
Finlay Carson
I will bring in Rachel Mulrenan, who wants to address some of the points from your first question.
Rural Affairs and Islands Committee
Meeting date: 5 June 2024
Finlay Carson
You quoted an astonishing figure of over 80 per cent mortality. Where does that figure come from? What does that actually relate to?
Rural Affairs and Islands Committee
Meeting date: 5 June 2024
Finlay Carson
Can I ask a simple question? What are the indicators of fish welfare when you decide whether welfare is good, poor or otherwise? Surely, mortality and health are the key indicators.
Rural Affairs and Islands Committee
Meeting date: 5 June 2024
Finlay Carson
We will stick to committee members asking the questions, or it will turn into a debate, which is not the purpose of today’s meeting.
Rural Affairs and Islands Committee
Meeting date: 5 June 2024
Finlay Carson
Emma Harper wants to ask about comparisons.
Rural Affairs and Islands Committee
Meeting date: 5 June 2024
Finlay Carson
One of the statements that you just made illustrated the issue that we have. You quoted the mortality of X million fish, but you did not contextualise that or provide any information about whether that is proportionate or acceptable. We continue to hear that message. We are not sure whether 1.5 million fish dying is reasonable or can be accepted. Understanding the context is one of the issues that the committee has. For example, a 1 per cent mortality, or more than that, in a beef herd might be significant, but a 5 per cent mortality in the aquaculture industry might not be significant compared with other types of farming. With situations like that, does the public get enough information to make educated decisions on whether aquaculture is making progress?
Rural Affairs and Islands Committee
Meeting date: 5 June 2024
Finlay Carson
Thank you. That is a good place to start. I move to a question from Ariane Burgess.
Rural Affairs and Islands Committee
Meeting date: 5 June 2024
Finlay Carson
To conclude this section, I want to put it into perspective. As a former farmer, I remember that we used to inject our calves with selenium to give their immunity a little boost. We used to give them an infectious bovine rhinotracheitis injection, or they would get bovine viral diarrhoea, and, on the back of that, there was quite a high use of antibiotics. We were treating conditions that were the result of various infections. Over time, however, the livestock industry has reduced the use of antibiotics quite significantly—for instance, as a prophylactic treatment for dry cows with mastitis. We have seen a dramatic drop in the use of antibiotics in other types of farming and food production. Are we seeing the same progress in aquaculture?
This inquiry and the report that we will be doing are all about progress and whether we are making progress. In agriculture, the advances in the area of inoculations and vaccinations have had the knock-on effect of reducing the use of antibiotics. Are we seeing the right direction of travel in aquaculture? Are we on the right path to reducing the use of antibiotics—not Ivermectin, which is a wormer for cattle, but the one that is used for fish? Are we seeing progress leading to the reduction in the use of these types of chemicals?
Rural Affairs and Islands Committee
Meeting date: 5 June 2024
Finlay Carson
We will now hear from our second panel of witnesses, which is made up of aquaculture scientists. I welcome to the meeting Professor Simon MacKenzie, who is head of the institute of aquaculture at the University of Stirling; Professor Sam Martin, who is the director of research in the school of biological sciences at the University of Aberdeen; and Dr Helena Reinardy, who is a lecturer and teaching fellow at the Scottish Association for Marine Science. Joining us remotely are Dr Annette Boerlage, who is a research fellow in aquatic epidemiology in the school of veterinary medicine at Scotland’s Rural College, and Professor Lynne Sneddon, who is the chair in zoophysiology in the department of biology and environmental sciences at the University of Gothenburg.
I am glad that I got my lips around all of that. We have approximately 90 minutes of questions, and I will kick off with a fairly straightforward one.
The Scottish Science Advisory Council’s report on the use of science and evidence in aquaculture concluded that science on aquaculture is “not sufficiently visible”. Do you consider public understanding of the salmon farming industry to be based on reliable information?
Rural Affairs and Islands Committee
Meeting date: 5 June 2024
Finlay Carson
Yes.