SHETLAND Fishermen’s Association (SFA) has joined forces with the Scottish White Fish Producers’ Association (SWFPA) to urge Scotland’s ministers to create a special panel to review stock assessments after “wild swings” in catch advice in recent years.
They are advocating the establishment of a body equivalent to the Bank of England’s Monetary Policy Committee to evaluate recommendations from the International Council for the Exploration of the Sea (ICES).
The two associations argue that insufficient consideration is taken of the often “shaky foundations” on which ICES stock assessments are made, with most derived from computer models and complex mathematical algorithms based on “highly simplistic assumptions”.
In support of their claims they cite the example of Northeast Atlantic mackerel advice which swung from 857,000 tonnes in 2017 down to 318,000 tonnes in 2018 and then back up to 922,000 tonnes in 2019, after ICES reviewed its modelling and adjusted its algorithms.
They also mention North Sea cod, where ICES has failed to take account in its advice of the changing distribution of the stock from the southern to the northern part of the North Sea.
SFA executive officer Simon Collins said: “It is essential that limits on what fishermen can catch are informed by science.
“But unfortunately the advice produced by ICES can turn out to be erroneous, resulting in unnecessary damage to the fishing industry and the communities that depend on it.
“As everyone knows, fish cannot be counted like trees, so what ICES has to do is model stock changes mathematically, often with very little real data, starting with an assessment that is itself a modelled outcome.
“Vast swings in stock advice can result from tweaks to these models and what skippers end up with is catching opportunities that bear little resemblance to the abundance of different species on their fishing grounds. Often to their severe detriment.”
Mike Park, chief executive of the SWFPA, added: “The drawbacks of the ICES modelling are compounded by the fact that there are no alternative sources of advice, there is no peer review of the advice and fisheries managers are not obliged to consider advice or information from other sources.
“So we have ended up with a monoculture that needs to be redressed, and that is why we are advocating the creation of a Fisheries Advice Panel charged with reviewing scientific advice for the benefit of the Scottish fisheries minister, particularly when it comes to negotiations over Total Allowable Catches (TACs) and quotas.”
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