Mike Kane – 2022 Speech on Anti-Fouling on Merchant Shipping

The speech made by Mike Kane, the Labour MP for Wythenshawe and Sale East, in the House of Commons on 7 November 2022.

It is a pleasure, as always, to serve under your chairmanship, Mrs Murray. I had a few nice, dulcet things to say about the right hon. Member for Gainsborough (Sir Edward Leigh), but we do not have him in the Chair, so thank you for stepping into the breach; it is good of you.

I welcome the Minister to his place. North West Durham is a beautiful part of the world, and I know Lanchester well. I am sure Members agree that in his first outing at an SI Committee, the Minister has done extraordinarily well. I am also sure that we all came into politics to discuss statutory instruments about barnacles on boats. I might have to take some anti-fouling measures myself; I will check my deodorant, because the Minister is about the fourth or fifth on my watch as shadow spokesperson for aviation and maritime. I wish him well in his time in office.

That is enough of the niceties. The implementation of the convention will protect United Kingdom waters from harmful effects occurring from the use of prohibited substances, not just on UK ships but on non-UK ships visiting our waters. We will be supporting the draft order, as it is vital to take every step within our power to reduce the leaching of toxins into water.

There are two major and interlinked environmental challenges in the marine industry: reducing emissions, and preventing the transfer of invasive species through biofouling. The formation of barnacles and other unwanted attachments, such as molluscs and algae, increase the consumption of fuel and slow ships down. In order to address that, ships’ hulls are coated with anti-fouling paints. Historically, coatings such as lime and arsenic were used to coat the hulls, but advances in chemistry enabled that problem to be resolved in a modern and effective way using metallic compounds.

Bulk carriers, tankers and general cargo ships can spend long periods in ports being loaded and unloaded. Some might also be prevented from berthing for long periods by neap tides. In such cases, shallow water and temperate environments can lead to accelerated fouling. Many shipowners must deal with those challenging operations on a regular basis. Only today, there was an interesting article in The Times about the sequestration of Russian yachts and the need to keep them moving to stop their deterioration.

Many ships have unpredictable trading patterns and must find cargoes where they can. That can mean that after operating in an area such as the north Atlantic with a coating chosen for that environment, the ship is switched to tropical zones and operation in different climates. The lower the predictability in operations, the higher the risk for fouling on the ship’s hull, potentially leading to increased fuel consumption and higher environmental impact.

Coatings are usually developed for specific operating conditions, meaning that their anti-fouling performance is highly problematic. Any changes to the expected operating conditions mean that the coating will not perform as expected. The main factors that increase the probability of fouling are unfavourable conditions such as location and duration during long idling periods. Modern coatings have also been proven to leach into water, and the results have been devastating for marine ecosystems.

As people have tried to do the right thing by coating ships to prevent the formation of barnacles and the attachment of other undesirables, and thereby reduce fuel burn, the issue has recurred with the newer metallic compounds. Those compounds have been proven to cause sex changes in whelks and deformation in oysters, and they may have entered the food chain.

Mr Khalid Mahmood (Birmingham, Perry Barr) (Lab)

This issue has a huge effect on the environment and on those who reside in our seas, particularly turtles, whales and larger fish, as well as whatever is attaching to ships. Whatever we do in our seas will ultimately have an effect on the food chain, as my hon. Friend said, and on those who inhabit that environment. Perhaps the Government will come back with something more concrete on the environment and the seas.

Mike Kane

Pope Francis reminded us in “Laudato Si’” that we are leaving an enormous pile of filth on this planet, so anything that we can do to reduce that filth and to ensure that it does not leach into the food chain of marine life is extraordinarily important. My hon. Friend is right to intervene to make that point.

Sir John Hayes (South Holland and The Deepings) (Con)

With your indulgence, Mrs Murray, I want to identify the problem of industrial fishing, which you will know a great deal about. It has precisely the same effect on the ecosystem that the hon. Gentleman talked about, and particularly on smaller sea creatures of the kind he mentioned. That is an aside, but it is relevant, given what we are discussing. I know that you will want to bring us back to the subject in hand.

The Chair

Absolutely. I think the shadow Minister would like to stick to the confines of the draft statutory instrument.

Mike Kane

Indeed I would, Mrs Murray. The right hon. Member for South Holland and The Deepings is right that marine life is important, and the draft order is part of that. The Minister knows of the marine biology problems along the coastline of North West Durham, although we do not know what the issue is just yet.

A team at the University of Oldenburg’s Institute of Chemistry and Biology of the Marine Environment conducted a study on the matter, which was published in February 2021. The group is continuing its research, having found that most of the plastic particles in water samples taken from the German Bight—an area of the North sea that encompasses some of the world’s busiest shipping lanes—originate from binders used in marine paints. The hypothesis is that ships literally leave a kind of skid mark in the water, and that as a source of microplastics, it is of a significance similar to that of tyre wear particles from cars on land. I am sure that that will cross the Minister’s desk as part of his new portfolio with responsibility for roads.

Of all plastic entering the ocean, 94% ends up on the seabed, where it will take centuries to degrade. In the process, it will release chemicals, microplastics and nano-plastics, all of which are harmful for marine life and for the ecosystem balance. With that in mind, will the Minister apprise me of which, if any, of the anti-fouling coatings are proven not to leach microplastics into the sea? We do not want to replace one pollutant with another.

I notice that no consultation was done on this draft statutory instrument, but we broadly support its intention. However, we do not want to find ourselves here again in 20 years debating the leaching of microplastics into our waters.