Articles | Volume 19, issue 8
Research article
29 Apr 2022
Research article |  | 29 Apr 2022

Species richness and functional attributes of fish assemblages across a large-scale salinity gradient in shallow coastal areas

Birgit Koehler, Mårten Erlandsson, Martin Karlsson, and Lena Bergström

Data sets

Species Observation System Swedish University of Agricultural Sciences

Species Observation System Swedish University of Agricultural Sciences

National archive for oceanographic and marine biological data Swedish Meteorological and Hydrological Institute

FishBase R. Froese and D. Pauly

EU Copernicus Marine Service Information CMEMS

Water Information System Sweden The Competent Authorities of the Swedish Water Districts, the County Administrative Boards, and the Swedish Agency for Marine and Water Management

Short summary
Understanding species richness patterns remains a challenge for biodiversity management. We estimated fish species richness over a coastal salinity gradient (3–32) with a method that allowed comparing data from various sources. Species richness was 3-fold higher at high vs. low salinity, and salinity influenced species’ habitat preference, mobility and feeding type. If climate change causes upper-layer freshening of the Baltic Sea, further shifts along the identified patterns may be expected.
Final-revised paper