Aliens in the Baltic Sea? Not if shipping managers utilize the free online tool developed by HELCOM and OSPAR to minimise the introduction of non-indigenous species (NIS, also known as alien species) via the ballast water of ships. The tool has recently been updated as part of the Interreg COMPLETE project.
“The updated tool now makes it even easier to evaluate the risk of introduction of alien species by ships traveling between two ports in the HELCOM-OSPAR area,” said Manuel Sala-Pérez, the COMPLETE project’s coordinator at HELCOM.
Alien species often travel with ballast water in ships, being sucked up into ships in one port and then discarded in another where they could potentially proliferate, take over habitats and disrupt the food chain and existing biodiversity. “For fragile marine ecosystems such as the Baltic Sea, NIS can be a serious issue,” cautioned Sala-Pérez.
The free online tool, the so-called Ballast Water Exemptions Decision Support Tool, assesses the risk of introduction of NIS in a simple way, yet based on the latest scientific knowledge on the occurrence and distribution of species as well as the environmental characteristics of each port.
“The online tool is now more user-friendly and contains improved GIS functionalities and data visualisations,” said Sala-Pérez, adding that it also includes updates to the underlying technology such as databases and algorithms. “It should be the go-to tool for whoever is dealing with ballast water management in the Baltic and North Seas.”
COMPLETE is an EU INTERREG Baltic Sea Region project aimed at minimizing the introduction and spread of harmful aquatic organisms and pathogens by shipping, notably via ballast water and biofouling. In the project, HELCOM led the activity tasked with updating the NIS online tool.
HELCOM further took part in the development of a proposal for a Baltic Sea Biofouling Roadmap and a HELCOM monitoring programme on NIS. It also participated in the review process of the HELCOM-OSPAR Joint Harmonised Procedure on ballast water exemptions, particularly on risk assessments of NIS introductions, and the update of the selection criteria for target species.