Hull-borne Invasive
Aquatic Species
Risk Management
Portshield – Hull-borne Invasive Aquatic Species Risk Management

The risk of hull-borne invasive species is real.

PortShield provides you with a risk assessment of vessels before they enter port, allowing resources to be allocated effectively to monitor at risk vessels.

The Problem
Invasive Aquatic Species (IAS)

Vessels engaged in international trade act as vectors for the introduction of IAS.


of the world's marine ecoregions have been affected by invasive aquatic species.

Marine alien species were introduced to European Seas between 2001 and 2010, approximately 60 of which as a result of hull fouling.

The Impact:
The cost of (IAS)

Apart from the cost (UK estimate is Euro 45 million per annum), IAS can cause a number of problems affecting port operations, such as:

PortShield – HIS Restrict Navigation

Restrict Navigation

PortShield – HIS Clog Waterways

Clog waterways

PortShield – HIS Affect Water Quality

Affect water quality

PortShield – HIS Damage Riverbanks and Structures

Damage riverbanks and structures

PortShield – HIS Compete with and displace populations of native species

Compete with and displace populations of native species

PortShield – HIS Spread Disease

Spread disease

PortShield – HIS Clog Water Intakes

Clog water intakes

Prevention is cheaper and more effective than eradication

How does it work?

PortShield is a web-based system that assesses the risk of hull-borne invasive aquatic species that a vessel poses prior to entry into Port.

PortShield – HIS Web-Based System Screenshot

The vessel names and IMO numbers shown here are for illustration only

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T: +44 (0)1670 519 900


4 The Staithes, The Watermark,
Gateshead, Tyne & Wear NE11 9SN