Dissertation time for thesis on Fucus radicans and Fucus vesiculosus

Friday 17th of May is not only the National Day of Norway to be celebrated, but also the doctoral defence of Daniel Johansson.
Daniel has studied at the Sven Loven Centre for Marine Sciences Tjärnö (more commonly known as TMBL) belonging to the University of Gothenburg.

Daniel’s thesis is entitled “Evolution of the brown algae Fucus radicans and Fucus vesiculosus in the Baltic Sea” and contains primarily work from a genetic point of view. There has been a lot of work put into obtaining the genetic identity of both species in order to distinguish Fucus radicans from Fucus vesiculosus, but also to be able to distinguish between different clones of Fucus radicans, which in the Gulf of Bothnia reproduces mostly vegetatively. This is achived by proliferation, small branches that fall off from the parent plant and then attach themselves to new substrate.

Small branches of Fucus radicans have formed rhizoids (sticky threads) that attach to the Petri dish.

Small branches of Fucus radicans have formed rhizoids (sticky threads) that attach to the Petri dish.

Daniel has also compared the ability of proliferation between different clones of Fucus radicans to see if the dominant clone, a female that has been found along 550 km of the Swedish Coast, was better than the other clones.

The defense starts at 14:00 in the Auditorium at Tjärnö, of course we will be there to listen!

It’s Seaweed Time!

After a long and cold winter in Sweden, it is finally time for the 21st Intenational Seaweed Symposium to kick off in Bali.

There are more than 500 participants and the program is full of interesting talks, mini-symposia and posters. For full details, download the programs on the symposium website.

We will endeavour to summarize the different topics presented during the symposia, so that our followers have plenty to discuss over coffee or tea.

While we are waiting for the registration to open, here are som pictures of seaweed that we have already found, while acklimatizing to the climate and timezone (read: been on a holiday here). Enjoy!

A green entanglemetn of Chaetomorpha

A green entanglemetn of Chaetomorpha

A beautiful red algae.

A beautiful red algae.

This one reminds me of Furcellaria lumbricalis.

This one reminds me of Furcellaria lumbricalis.