Table 2 Environmental parameters at the time of detection of new taxa at Helgoland Roads, excluding species that were confirmed on the basis of REM/TEM but for which the date of the first record is unclear
Species | Detection date | Temperature | Salinity | Total number of sightings | Sample type |
|---|---|---|---|---|---|
Mediopyxis helysia | 20.03.2009 | 4.4 | 29.194 | > 100 | Quantitative/Semi-quantitative |
Chaetoceros anastomosans | 24.09.2009 | 16.7 | 32.938 | < 10 | Semi-quantitative |
Chaetoceros lorenzianus | 24.09.2009 | 16.7 | 32.938 | < 10 | Semi-quantitative |
Chaetoceros pseudocurvisetus | 29.09.2009 | 16.5 | 32.514 | > 10 | Semi-quantitative |
Dinophysis tripos | 13.08.2014 | 18.2 | 33.310 | 1 | Quantitative |
Odontella longicruris | 06.10.2015 27.9.2016 | 15.9 16.5 | 33.394 32.49 | < 10 | Quantitative Semi-quantitative |
Alexandrium ostenfeldii | 8.8.2017 | 17.8 | 32.53 | < 10 | Semi-quantitative |