NOVEMBER 16
SCIENTIFIC WORKS
Milan conducts overwintering experiment in Tromsø
In a cold room at the University of Tromsø, Milan sets up the same overwintering experiment he did exactly one year ago in the Marine lab in Ny-Ålesund. hosted by Markus Molis at the University of Tromsø for two weeks in order to conduct an overwintering experiment similar in design to the one he already did in Ny-Ålesund. This time, the idea is to gather 𝘍𝘶𝘤𝘶𝘴 𝘷𝘦𝘴𝘪𝘤𝘶𝘭𝘰𝘴𝘶𝘴 as opposed to 𝘍. 𝘥𝘪𝘴𝘵𝘪𝘤𝘩𝘶𝘴, which he worked with on Svalbard. Doing another experiment like that with another species will help us to assess the long term invasive potential of 𝘍. 𝘷𝘦𝘴𝘪𝘤𝘶𝘭𝘰𝘴𝘶𝘴 and potential overwintering success compared to the more Arctic 𝘍. 𝘥𝘪𝘴𝘵𝘪𝘤𝘩𝘶𝘴.
In preparation for the experiment, Milan installed several temperature controlled water baths in the shelfs to simulate different offset temperatures to the selected ambient temperature of 1°C in the cold room. Then, he calibrated and installed measuring instruments and setups for photophysiological measurements like oxygen rates and light curve measurements. For this experiment he is gathering 𝘍𝘶𝘤𝘶𝘴 𝘷𝘦𝘴𝘪𝘤𝘶𝘭𝘰𝘴𝘶𝘴, incubating it at four different temperature settings for two months in darkness to simulate temperature stress in an overwintering scenario.
𝘍𝘶𝘤𝘶𝘴 𝘷𝘦𝘴𝘪𝘤𝘶𝘭𝘰𝘴𝘶𝘴, commonly known as the bladderwrack, is also an intertidal Macroalgae which inhabits a similar section of the intertidal but compared to 𝘍. 𝘥𝘪𝘴𝘵𝘪𝘤𝘩𝘶𝘴, has typically a more “boreal” latitudinal range distribution. This experiment in Tromsø will help us to assess the longterm invasive potential of 𝘍. 𝘷𝘦𝘴𝘪𝘤𝘶𝘭𝘰𝘴𝘶𝘴 and potential overwintering success compared to the more Arctic 𝘍. 𝘥𝘪𝘴𝘵𝘪𝘤𝘩𝘶𝘴.
