Table 1 The total number of species, number of freshwater and marine species, number of non-indigenous species, mean salinity and in each sub-region and its area (km2) (in alphabetical order)
From: Biodiversity gradient in the Baltic Sea: a comprehensive inventory of macrozoobenthos data
Sub-basin/sub-region | Species number | Freshwater species | Marine species | Neozoan species | Mean salinity | Area km² |
|---|---|---|---|---|---|---|
Åland Sea | 71 | 30 | 41 | 4 | 6 | 4,433 |
Archipelago Sea | 130 | 73 | 57 | 10 | 6 | 11,076 |
Arkona Basin | 304 | 25 | 279 | 13 | 9.85 | 15,555 |
Bay of Mecklenburg | 440 | 19 | 421 | 16 | 18 | 4,423 |
Bornholm Basin | 165 | 17 | 148 | 14 | 7.6 | 41,138 |
Bothnian Bay | 135 | 108 | 27 | 7 | 3.1 | 33,224 |
Bothnian Sea | 147 | 101 | 46 | 11 | 5.5 | 63,650 |
Curonian Lagoon | 252 | 225 | 27 | 19 | 0.5 | 1,555 |
Darss-Zingst Lagoon | 120 | 57 | 63 | 11 | 4.92 | 166 |
Eastern Gotland Basin | 106 | 19 | 87 | 8 | 7.2 | 73,449 |
Eckernfde Bay | 247 | 2 | 245 | 6 | 15 | 68 |
Flensburg Fjord | 214 | 1 | 213 | 4 | 15 | 250 |
Great Belt | 345 | 11 | 334 | 6 | 21 | 7,765 |
Greifswald Lagoon | 121 | 33 | 88 | 12 | 5.8 | 501 |
Gulf of Finland | 482 | 410 | 72 | 27 | 4.6 | 29,901 |
Gulf of Gdansk | 127 | 54 | 73 | 14 | 7 | 5,076 |
Gulf of Riga | 122 | 66 | 56 | 11 | 5.2 | 18,795 |
Kattegat | 1,161 | 7 | 1,154 | 7 | 25 | 22,102 |
Kiel Bay | 508 | 5 | 503 | 7 | 20 | 3,266 |
Kiel Fjord | 227 | 6 | 221 | 6 | 15 | 40 |
Little Belt | 411 | 12 | 399 | 6 | 21 | 2,701 |
Northern Baltic Proper | 84 | 22 | 62 | 9 | 6.5 | 41,113 |
Rugia Lagoons | 115 | 25 | 90 | 10 | 5.1 | 360 |
Schlei Estuary | 166 | 54 | 112 | 8 | 9.8 | 132 |
Szczecin Lagoon | 260 | 206 | 54 | 24 | 1 | 874 |
The Quark | 105 | 65 | 40 | 7 | 4 | 4,509 |
The Sound | 668 | 9 | 659 | 7 | 22 | 2,278 |
Trave Estuary | 119 | 12 | 107 | 9 | 8.7 | 41 |
Vistula Lagoon | 127 | 92 | 35 | 23 | 1 | 773 |
Warnow Estuary | 144 | 51 | 93 | 16 | 8.9 | 12 |
Western Gotland Basin | 69 | 12 | 57 | 5 | 6.7 | 27,876 |
Wismar Bay | 211 | 16 | 195 | 12 | 11.33 | 198 |
Total | 2,035 | 612 | 1,423 | 51 | 417,302 |