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Mussel infestation aboard the Barrier Queen

The Swarm

The mussel infestation aboard the Barrier Queen turns an ordinary ship component into the immediate cause of a dangerous loss of control—and leaves Leon Anawak with evidence that the ship’s fouling cannot be explained by routine neglect. The rudder appears to have been jammed by mussels, while the propeller is heavily covered despite having been exposed to the water only after the engines stopped. Anawak can propose a sequence for the mechanical failure, but neither the extraordinary speed of the infestation nor the organism he glimpsed within it is fully explained.

Discovery and immediate aftermath

Anawak emerges coughing and spits out harbour water before joining the group gathered at the truck’s tailgate. He has been chosen to speak for the others. When Clive Roberts asks whether mussels blocked the rudder, Anawak confirms that they did and identifies them, by appearance, as Zebra mussel. The question of how this could have happened prompts him to set out a possible mechanical sequence rather than claim certainty about the infestation’s origin.

He opens his collection jar and carefully transfers blobs of jelly into a larger container of seawater. The tissue already seems to be decomposing, making preservation urgent. The jar is more than a sample container: it holds material that may help distinguish what happened to the ship from what Anawak only suspects happened below it. His concern about the tissue accompanies a second, practical priority—getting it to someone able to examine it.

How the rudder may have jammed

Anawak’s reconstruction begins with a helmsman trying to apply five degrees of rudder. The blade does not move because mussels have settled over the shaft. Since a blocked rudder is unusual, the helmsman may assume that the initial adjustment was too small and apply more force. When the rudder finally breaks free, it swings across the shaft and crushes the mussels in its path. Instead of clearing the mechanism, the ground molluscs form a paste that wedges the blade and prevents it from swinging back.

The explanation makes the rudder’s failure a sequence of interactions between a control system and an unexpected mass of living material. The rudder is normally a responsive instrument; here, the organism-encrusted shaft makes an apparently simple adjustment ineffective, then turns the attempt to correct it into part of the jam. Anawak presents this as a plausible account, not a witnessed reconstruction, and acknowledges that the others know more about boats than he does. The distinction matters: the mechanism can be imagined, but the extraordinary buildup that made it possible remains the central mystery.

The propeller and the unexplained spread

The distribution of mussels troubles Anawak more than the rudder alone. The sea-chests are clear, yet the propeller is completely infested. A rotating propeller, he reasons, would be too difficult a surface for even determined mussels to occupy. He considers two possibilities: they might have attached in Japan, though the rudder worked properly until the ship reached the two-hundred-mile zone, or they might have latched onto the propeller after the engine stopped.

His proposed sequence links the two heavily fouled parts. A large swarm first settles on the rudder; once the rudder jams, the ship heels and the engines are shut down within minutes. With the propeller no longer rotating, more mussels can settle on the rudder, strengthen the blockage, and spread across the propeller and along the hull. This account gives the infestation a possible means of expanding, but does not establish where it began or how so many mussels gathered so quickly. Roberts later voices the scale of the problem directly: tonnes of mussels should not have accumulated in such a short time, and the ship had not been neglected for weeks.

That objection is reinforced by the Barrier Queen’s reported condition before the incident. The vessel was inspected constantly and coated with environmentally friendly special paint intended to prevent organisms from attaching; Roberts says that, at most, a few barnacles were expected. Anawak points out that there are far more than a few barnacles and that the ship looks as though it had been exposed for weeks to hordes of mussel larvae. The reported inspections and protective coating sharpen, rather than resolve, the discrepancy between expected fouling and the mass now covering the hull and machinery.

A flash within the mussel crust

Anawak also recounts something that happened beneath the Barrier Queen. As he describes an organism shooting out from inside the mussel crust, the memory returns in fragments: the initial shock, his head striking the boat, and the stars he thought he had seen. He corrects himself—the light was a flash, and then specifies that there was a single flash. The brief correction preserves the uncertainty of what he experienced while making the light itself part of the evidence.

He privately considers a squid the likeliest explanation: it seemed too fast for a jellyfish and too strong to be one, and it burst through the shells like an elastic muscle. He remembers that it appeared as soon as he reached into a gap and wonders whether his knife cut it, provoking a reflexive thrust. But the water was too murky for him to see clearly, so the identification remains conjectural. The encounter does not explain the ship-wide infestation; it adds a separate, unresolved sign of life within the mussel crust.

Investigation and significance

Anawak recommends that Roberts have the dock checked and send the sealed samples by helicopter to the laboratory in Nanaimo. He volunteers to go with them because he knows who should examine the material. The proposed next step turns the scene from a speculative reconstruction into an investigation: the deteriorating samples must be studied, while the dock and the vessel’s unexpectedly fouled surfaces need checking.

The incident’s significance lies in the gap between visible damage and adequate explanation. The jammed rudder, coated propeller, clean sea-chests, protective paint, and single flash are concrete observations, but their causes do not yet fit into a settled account. Anawak can trace how a blockage might have formed and spread once the machinery stopped; he cannot explain how such an enormous infestation arose so quickly. The Barrier Queen’s failure therefore exposes the limits of ordinary inspection and mechanical expectation when living matter becomes an active force within the ship’s systems.