Table 1.
List of sustainability categories (SCI) used in the study, and their assignment to ESRS topics and SDGs.
Table 2.
Ferry operators in the Baltic Sea and the number of operated vessels as of 28.05.2024.
Table 3.
Ferry operators in the Adriatic Sea and the number of operated vessels as of 10.11.2024.
Fig 1.
Research procedure.
Table 4.
SCIMC(Pj) value ranges.
Fig 2.
Sustainability communications topics referred to by the ferry operators.
Table 5.
Ranking of the Baltic ferry companies (Ranking 2B).
Table 6.
Ranking of the Adriatic ferry companies (Ranking 2A).
Fig 3.
The studied ferry companies displayed as per the SCIMC (Pj) index level, and the number of vessels (size of the bubble).
Fig 4.
Dispersion of the SCIMC (Pj) index values in relation to the number of vessels operated by the studied ferry companies.
Fig 5.
Contributions to sustainability categories by the Baltic ferry market.
Fig 6.
Contributions to sustainability categories by the Adriatic ferry market.
Fig 7.
Rankings of contributions to sustainability categories by the Baltic and the Adriatic ferry market (Ranking 3B and Ranking 3A).