Biosecurity on boats

For all boat owners, boat users and skippers: learn how to sail without stowaways! 

Found a stowaway? Do not land on a seabird island, return to the mainland to find and catch the stowaway. 

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Biosecurity on boats

Unintentional passengers like rats can damage your vessel and pose a significant threat to native island species like seabirds. These resources will help you to keep your boat 'stowaway-free’!

There are lots of easy things that you can do to avoid carrying stowaways including using rodent-proof containers and providing passengers with biosecurity information upon booking and boarding. To check that you don’t have any unintentional passengers on-board there are simple surveillance tools that you can use.

Found signs of stowaways onboard your boat? Here are the steps to take a useful document that guides you through the process, including how to catch the stowaway.

Kayakers: get in touch for 'paddle without passenger' Kayak stickers

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Boat and kayak owners 23 March 2021

ID TOOL - Rodent identification and signs of stowaways

Use this handy guide to learn how to identify rodents and their signs. Entrance holes, droppings, nest material and gnaw marks can all help alert you to a rodent on your boat.

Afra Skene Biosecurity for LIFE Officer, Shetland and Orkney
Boat and kayak owners 22 March 2021

Found signs of stowaways onboard your kayak? Here are the steps to take

Do not land on a seabird island. Never push stowaways overboard dead or alive! Do not assume only one individual stowaway is aboard. Return to the mainland.

Jaclyn Pearson Biosecurity for LIFE Officer, United Kingdom
Boat and kayak owners 10 March 2021

How far can rodents swim?

Different species have different swimming strengths and this is important information - never throw a stowaway overboard from a boat.

Biosecurity for Life Officer RSPB, Scotland
Boat and kayak owners 9 March 2021

ID TOOL - Identifying rodent footprints and nests

Footprints can help confirm the presence of a rodent or other invasive mammal. Use the training materials here to help you identify the species.

Tessa Coledale Biosecurity for LIFE Officer, Wales and Northern Ireland
Boat and kayak owners 8 March 2021

How far can invasive non-native predators swim?

Different species have different swimming strengths and this is important information in determining the risk from potential sources based on their proximity to the island.

Biosecurity for Life Officer RSPB, Scotland
Boat and kayak owners 18 February 2021

Found signs of stowaways onboard your boat? Here are the steps to take

Do not land on a seabird island. Never push stowaways overboard dead or alive! Do not assume only one individual stowaway is aboard. Return to the mainland.

Jaclyn Pearson Biosecurity for LIFE Officer, United Kingdom
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