Gdańsk Bay, biodiversity for different users
Sublittoral habitats
 Vegetated sandy bottom |  |
 Unvegetated sandy bottom |  |
 Muddy sand |  |
 Sublittoral stony reefs |  |
| Species for scuba divers | Class | Common name |
| Benthic macrofauna | Polish name | |
| Cerastoderma edule | Bivalvia | sercówka |
| Macoma balthica | Bivalvia | rogowiec |
| Mya arenaria | Bivalvia | piaskołaz |
| Mytilus edulis | Bivalvia | omułek |
| Lymnea peregra | Gastropoda | błotniarka |
| Hydrobia ulvae | Gastropoda | wodożytka |
| Theodoxus fluviatilis | Gastropoda | rozdepka |
| Nereis diversicolor | Polychaeta | nereida |
| Crangon crangon | Crustacea | garnela |
| Rhitropanopeus harrisi | Crustacea | krabik amerykański |
| Palaemon adspersus | Crustacea | krewetka |
| Semibalanus balanoides | Crustacea | pąkla |
| Macrophytes | ||
| Zostera marina | Tracheophyta | trawa morska |
| Ruppia | Tracheophyta | rupia |
| Chara | Characea | ramienica |
| Zanichella | Tracheophyta | zanichella |
| Furcellaria fastigiata | Rhodophyta | widlik |
| Coccolytus | Rhodophyta | kokkolytus |
| Vertebrates | ||
| Neogobius melanostomus | Pisces | babka bycza |
| Nerophis ophidion | Pisces | wężynka |
| Syngnathus typhle | Pisces | iglicznia |
| Myoxocephalus scorpius | Pisces | kur diabeł |
| Cyclopterus lumpus | Pisces | tasza |
| other | ||
| Cyanophyta | Cyanophyta | zakwit sinic w toni wodnej |
| Cyanophyta - red | Cyanophyta | mata sinic na dnie |
 Littoral |
Pelagial  |