Mariculture is a branch of aquaculture that concerns the artificial cultivation of marine organisms in the sea or brackish water, especially of fish and shellfish, in special pens or ponds, or on ropes, poles or cages. Mariculture is an environmentally acceptable, economically sustainable and socially desirable activity. Croatia is a country in which the sea was used as a source of food as early as a thousand years ago.
| Number | City/Municipality | Location | Max. area (ha) |
| 1 | Novi Vinodolski | bay Žrnovnica | 1 |
| 2 | Omišalj | island Sveti Marko | 6 |
| 3 | Krk | Valbiska | 15 |
| 4 | Krk | Plavnik | 60 |
| 5 | Punat | Stara Baška | 6 |
| 6 | Cres | island Cres, uvala Zaplot, Veli bok | 11 |
| 7 | Cres | Merag | 15 |
| 8 | Mali Lošinj | west side of the island Lošinj | 10 |
| 9 | Mali Lošinj | bay Kaldonta, island Cres | 5 |
| 10 | Mali Lošinj | Podno Osoršćice, Mali Lošinj | 10 |
| 11 | Lopar | island Grgur | 10 |
| 12 | Lopar | island Goli | 15 |
| 13 | Lopar | bay Malo kolo | 15 |
| 14 | Rab | bay Mag | 3 |
| 15 | Rab | bay Barbat | 3 |
Contacts:
Primorje-Gorski Kotar County
Administrative Department of Regional Development, Infrastructure and Project Management
Adamićeva 10, 51000 Rijeka
Phone: +385 51 351 900, Fax: + 385 51 351 909
E-mail: razvoj@pgz.hr
Administrative Department for Maritime demain, Transport and Communications
Slogin kula 2, 51000 Rijeka, Croatia
Phone: +385 51 351 952,
Fax: + 385 51 351 953
E-mail: pomorstvo@pgz.hr
Web: www.pgz.hr