A multi-criteria decision analysis model for ship biofouling management in the Baltic Sea
Artikel i vetenskaplig tidskrift, 2022

Biofouling of ship hulls form a vector for the introduction of non-indigenous organisms worldwide. Through increasing friction, the organisms attached to ships' hulls increase the fuel consumption, leading to both higher fuel costs and air emissions. At the same time, ship biofouling management causes both ecological risks and monetary costs. All these aspects should be considered case-specifically in the search of sustainable management strategies. Applying Bayesian networks, we developed a multi-criteria decision analysis model to compare biofouling management strategies in the Baltic Sea, given the characteristics of a ship, its operating profile and operational environment, considering the comprehensive environmental impact and the monetary costs. The model is demonstrated for three scenarios (SC1-3) and sub-scenarios (A-C), comparing the alternative biofouling management strategies in relation to NIS (non-indigenous species) introduction risk, eco-toxicological risk due to biocidal coating, carbon dioxide emissions and costs related to fuel consumption, in-water cleaning and hull coating. The scenarios demonstrate that by the careful consideration of the hull fouling management strategy, both money and environment can be saved. We suggest biocidal-free coating with a regular in-water cleaning using a capture system is generally the lowest-risk option. The best biocidal-free coating type and the optimal in-water cleaning interval should be evaluated case-specifically, though. In some cases, however, biocidal coating remains a justifiable option.

Bayesian network

Decision analysis model

Non-indigenous species

Eco-toxicological risk

Författare

Emilia Luoma

Helsingin Yliopisto

Kotka Maritime Research Centre

Mirka Laurila-Pant

Helsingin Yliopisto

Kotka Maritime Research Centre

Elias Altarriba

Kotka Maritime Research Centre

South-Eastern Finland University of Applied Sciences

Lauri Nevalainen

Helsingin Yliopisto

Kotka Maritime Research Centre

Inari Helle

Kotka Maritime Research Centre

Helsingin Yliopisto

Naturresursinstitutet (Luke)

Lena Granhag

Chalmers, Mekanik och maritima vetenskaper, Maritima studier

Maiju Lehtiniemi

Suomen ympäristökeskus SYKE

Greta Srėbalienė

Klaipeda University

Sergej Olenin

Klaipeda University

Annukka Lehikoinen

Kotka Maritime Research Centre

Helsingin Yliopisto

Science of the Total Environment

0048-9697 (ISSN) 1879-1026 (eISSN)

Vol. 852 158316

COMPLETE PLUS

Interreg, 2021-04-01 -- 2021-12-31.

Ämneskategorier

Ekologi

Geokemi

Miljövetenskap

DOI

10.1016/j.scitotenv.2022.158316

PubMed

36037884

Mer information

Senast uppdaterat

2022-09-26