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TableĀ 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

From: An updated phytoplankton check-list for the Helgoland Roads time series station with eleven new records of diatoms and dinoflagellates

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