Hinrichsen, Hans-Harald; Piatkowski, Uwe; Jaspers, Cornelia (2022): Evidence of extraordinary marine species in the SW Baltic Sea [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.942035
Always quote citation above when using data! You can download the citation in several formats below.
Published: 2022-03-08 • DOI registered: 2022-04-06
Abstract:
The presence of an extended salinity gradient of the Baltic Sea reveals a variety of species occur at the limit of their physiological tolerance and preference, i.e. in areas and habitats not representing their marine or fresh water origin. Hence, the Baltic Sea is known for its high share of non-indigenous species, which have established. In this study, we compiled extraordinary sightings of transient, non-native or potentially range expanding species, such as jellyfish, squid, fishes and marine mammals in the SW Baltic Sea for a period from 2001 to 2018. We focused on jellyfish, squid, fishes and marine mammals. Hydrographic conditions, such as water temperature and salinity, obtained from a high spatio-temporally resolved hydrodynamic Baltic Sea model, covering a daily resolved 40-year time series were linked to the sightings of these extraordinary species. Our hydrodynamic modelling results demonstarted that changes in the occurrence of exceptional species reflect the dynamics of water mass exchange between the Kattegat/Skagerrak and the SW Baltic Sea. Our analyses show that these changes could be related to the presence of anomalously high saline water masses. This documents that the hydrographically highly dynamic SW Baltic Sea needs special attention for monitoring of non-indigenous species, as high saline and warm water intrusions are more frequent than currently believed and ii) can be linked to sightings of exceptional species in the SW Baltic Sea.
Supplement to:
Hinrichsen, Hans-Harald; Piatkowski, Uwe; Jaspers, Cornelia (2022): Sightings of extraordinary marine species in the SW Baltic Sea linked to saline water inflows. Journal of Sea Research, 181, 102175, https://doi.org/10.1016/j.seares.2022.102175
Funding:
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | File content | Content | Hinrichsen, Hans-Harald | |||
| 2 | Binary Object | Binary | Hinrichsen, Hans-Harald |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Basic curation (CurationLevelB)
Size:
13 data points
Data
All files referred to in data matrix can be downloaded in one go as ZIP or TAR. Be careful: This download can be very large! To protect our systems from misuse, we require to sign up for an user account before downloading.
| 1 Content | 2 Binary |
|---|---|
| Annual mean hydrographic conditions in Kiel Bight for three different depth layers. 40 year averaged (1979-2018) temperature and salinity profiles with ±1SD | Figure-2.txt |
| Depth profiles of temperature and salinity during sighting of a common bottlenose dolphin (Tursiops truncatus) in the Belt Sea, SW Baltic Sea in December 2015 compared to the long-term mean and standard deviation, and the indices of temperature and salinity fluctuations | Figure-3.txt |
| Exceptional sightings of uncommon species in the Belt Sea, SW Baltic Sea. Temperature (TFs) and salinity (SFs) versus depth for invertebrates | Figure-4.txt |
| Daily salinity anomalies during 2014 expressed as >1 SD and < 1SD of the averaged salinity over the 40-year period (1979-2018) for the upper water column (4.5 m) in Kiel Fjord and the large lion's mane jellyfish Cyanea capillata (>15 cm) (ind/100m transec | Figure-5.txt |
| Number of days per quarter of the year (jan-mar/apr-jun/jul-sep/oct-dec) with exceptional salinity conditions (SFs > 1) in the Kiel Bight area for the depth intervals 4.5, 10.5 and 16.5 m. | Figure-6.txt |
| Number of days per quarter of the year (jan-mar/apr-jun/jul-sep/oct-dec) with exceptional temp conditions (TFs ≤ −1 and TFs ≥ 1) during salinity conditions (SFs ≥ 1; Fig. 6) with the number of days where the observed temperature was SD ≥ 1 and SD ≤ -1 | Figure-7.txt |
| Supportin_material_Cyanea.txt |