Nordic OIKOS poster sessions

The number of posters was very large and one poster presented by a PhD student won the award as the best poster, selected by the board of Oikos during the conference. This was number 100 with the title: “Ant larvae as a secret weapon against social parasites” by Unni Pulliainen. During the poster session lots of engaged presentations occurred.

1Winning poster Ants

Winner of “Best Poster Award”

1 a Ben presents his poster

Ben presents his poster

There were also a number of marine and aquatic posters, for some the author had the possibility to pitch their poster in 3 minutes.

Tiina Salo, now being on a post-doc, showed in her poster that Lymnea stagnalis responds more strongly to a heat wave after exposure to a mixture of micropollutants. But they recovered fast after the heat wave had passed. To feed the snails she used ecological salad. In the future experiments they will be fed leaves from different aquatic plant species.

2Tiina presents her poster

Tiina (left) pitches her poster

Several posters presented different aspects on the hot topic “ top- down – bottom-up” regulation of different ecosystems and impact of cascading effects and interactions between species. One species that creates lots of emotions is the cormorant, when establishing large populations on small islands along the Baltic coast.

4 aPelagic food-web  poster

Top-down fish poster

5Cormorant poster

Bottom-up cormorant poster

From the Department of Ecology, Environment and Evolution two posters were presented, one on the long-term effect of Pilayella on the settlement of Fucus vesiculosus by Susanne Qvarfordt and the other one presented results from a master project on the Swedish west coast about two closely related Littorina snail species behaviour when placing their egg sacs on different fucoid species.

6Pylaiella påverkan på etablering av blåstång

Susanne Qvarfordt show how the effects of Pylaiella can be seen for a long time in the macroalgal community

7Littorina poster

Our poster!

The last poster that I want to present was of high interest dealing with the new crab species, the mud crab, Rhithropanopeus harrisii and its impact on the local fauna. It is just a question when this crab will arrive on the Swedish coast. Keep your eye out for it.
8Mud crab introduced

The conference ended after three intense days.

9Thanks for the conference

 

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Day 3 and 4 of the EMBS at Helgoland

Wednesday at week-long conferences is usually the day with excursions. Today, we started out with some talks in the morning, among them Alexey Sukhotin showing different studies done at the Russian field station Kartesh in the White Sea over the last 50 years. This was very interesting to us, as Lena went there in 1995 and we would like to return and do some experiments on their Fucus vesiculosus populations.
Also, Hartvig Christie held another talk on the Norwegian kelp forests and seagrass beds, this time on how they can survive being both food and habitat. This study clearly shows how fish help maintaining the kelp and seagrass by feeding on the any grazing gastropods and crustaceans that would otherwise prove too much grazing pressure for these ecosystems.

Since the sun was out and the wind was low, we went for a discovery trip up on the oberland, admiring the view of the North Sea horizon and the interesting geology of the island.

The red sandstone of Helgoland

The red sandstone of Helgoland

We took our packed luch by the nesting colony of Northern gannet, Morus bassanus.

Nestng colony of Northern gannet

Nestng colony of Northern gannet

The birds seem not to mind the passing humans

The birds seem not to mind the passing humans

It was rather sad to see how they have used plastic or nylon netting for nesting material. Several young birds have gotten entangled in the nets and died, so the colonies were draped with more or less mummified birds hanging from the rock.

Plastic as nesting material comes with a prize

Plastic as nesting material comes with a prize

Lange Anna, a monument to erosin by wind and waves.

Lange Anna, a monument to erosin by wind and waves.

After some mandatory selfies at Long Anna at the tip of the island, we walked back towards unterland, passing the local allotment area. Gardening here is very affected by the wind, but lots of dense hedges seems to do the trick.

The allotment gardeners have plenty of sun, rain and seaweed as fertilizer. Using hedges to screen out the wind makes for bumper crops.

The allotment gardeners have plenty of sun, rain and seaweed as fertilizer. Using hedges to screen out the wind makes for bumper crops.

In the afternoon, we took the boat over to Düne to look at the seals and browse the shores there for interesting finds. There are so many beautiful speciments of Laminaria hyperborea kelp here, and I would like to bring all of them home. Best not, I think. A kelp forest in a small appartment might not be such a good idea.

The beuty of kelp, even when washed on to the beach.

The beuty of kelp, even when washed on to the beach.

Typical dune landscape, with few but tough species

Typical dune landscape, with few but tough species

After enjoying the dune-landscape with its typical flora and falcons, we strolled to the southern beach, where the conference dinner and Yellow Submarine competition would be held. The Yellow Submarine has been running since 1968 and although its all in good fun, it is still a prestigeous prize to win.

The Swedish team compeating for the Yellow Submarine. Nils, Lena, Ellen and Angela.

The Swedish team compeating for the Yellow Submarine.
Nils, Lena, Ellen and Angela.

This year, we entered a strong team for Sweden, with no less than 3 professors and one fresh-from-the-oven doctor. Lena and Nils kautsky, Angela Wulff and yours truly worked hard, spinning around bottles, answering questions while building sand castles and collecting water (huge effort by aquatic gazelle Angela).

All the teams did very well and the winner will be announced later in the week. The evening ended pleasantly late after drinks and high spirits amongs all.

Two post doc positions on Baltic Sea research

The University of Helsinki and Stockholm University have entered into a strategic partnership where one of the key areas is Baltic Sea research. To strengthen this joint research initiative they are now inviting applications for two post-doctoral positions, one at Tvärminne Zoological Station (University of Helsinki) and one at the Askö Laboratory / Baltic Sea Centre (Stockholm University).

They are looking for candidates with experience and a strong interest in at least one of the following areas, with a particular focus on the coastal zone:
– biodiversity and ecosystem functioning
– benthic and/or pelagic biogeochemical cycles
– modelling of ecosystem processes in the coastal zone

The ideal applicants would have PhD’s in Marine Ecology, Ecosystems ecology, Biogeochemistry, Ecosystem modelling or related disciplines, have strong publication records commensurate with experience, and a demonstrated potential to obtain external research funds.
The successful candidates will be expected to be active in research and publication, advise graduate students, and engage in inter-disciplinary research and public outreach.
Comparative studies at both Askö Laboratory and Tvärminne Zoological Station are expected.

So, if you fit any of the above descriptions and love to be out in the field, this is a wonderful opportunity to experience two beautiful archipelagos of the Baltic Sea.

For more information on the positions, check HERE for the one placed in Finland and klick HERE for the one in Sweden.

Deadline for applicants is March 30th!

Askö boathouse early spring morningAskö boathouse early spring morning
Sunset at Tvärminne in FeburarySunset at Tvärminne in Feburary

Summary of the Askö Day

If you missed the first Askö Day, where recent and future researchers as well as course organisers met and discussed on-going and future research projects in the Baltic Sea, you can read a brief summary on the Baltic Sea Center site.

The BalticSeaWeed blog was there, of course, focusing on Fucus.

Do have a look at the lovely little film “Askö in numbers” that show areal footage of the research station.

PhD position on seaweed farming in Sweden

The Department of Biological and Environmental Sciences at Gothenburg University announces a PhD-position on macroalgae farming. The lucky winner will be located at Tjärnö Marinebiological Laboratory, just south of Strömstad on the Swedish west coast. It sounds like really interesting stuff!

Tjärnö Station as seen from r/v Nereus

Tjärnö Station as seen from r/v Nereus

Type of employment: Fixed-term employment, four years
Extent: 100 %
Location: Department of Biological and Environmental Sciences, Tjärnö, on the Swedish west coast.
First day of employment: Up on agreement
Reference number: UR 2014/914

Doctoral education
The admission to doctoral education takes place in natural science, specialising in biology. The program comprises four years of fulltime study and includes three years working on a thesis project and one year of courses and literature studies. Courses can be selected within the department/faculty, but national/international courses can also be included. Teaching and supervision of undergraduate students may be included, which extends the doctoral education period.

Project description
The PhD project is part of the larger research project “Sustainable large-scale cultivation of seaweeds in Sweden” where researchers from the University of Gothenburg, the KTH Royal Institute of Technology, and the Scottish Association of Marine Science participate. The overall project objective is to develop a sustainable large-scale system for growing kelp (Saccharina latissima) at the Swedish west coast. Seaweed cultivation is the fastest growing aquaculture sector globally, but is totally undeveloped in Sweden despite good natural conditions. The project deals with methodological and environmental aspects such as new cultivation techniques, mass production of spores and seedlings, breeding of crop varieties, and effects of seaweed cultivation on the surrounding marine ecosystem.

Saccharina latissima

Saccharina latissima

Job assignments
The main task is to carry out thesis work under supervision, during which the PhD student will develop knowledge and skills in methodology, analytical ability and subject theory. The work tasks include laboratory-based production of seedlings, development of new cultivation techniques for seaweeds in the field, development of high-performing lines through breeding, and evaluation of positive and negative environmental effects of large-scale algal cultivation. The studies will be conducted both in the field and in the laboratory.
The thesis work also includes statistical analyses and compilation of results in scientific papers, leading to the publication of a doctoral thesis. The PhD student will also present results at conferences, seminars, and project meetings and is expected to communicate and collaborate actively with other participants.

Small seedlings of Saccharina latissima on rope.

Small seedlings of Saccharina latissima on rope.

The admission to doctoral education takes place in Natural Science, specialising in Biology. The program comprises four years of fulltime study and includes three years working on a thesis project and one year of courses and literature studies. Courses can be selected within the department/faculty, but national/international courses can also be included. Teaching and supervision of undergraduate students may be included, which extends the doctoral education period.

For more information on the position, check THIS LINK

You can also contact
Henrik Pavia, +46(0)31-7869685, henrik.pavia@bioenv.gu.se
or
Head of department: Ingela Dahllöf, +46 (0)31 786 3393, ingela.dahllof@bioenv.gu.se

New publication comparing Fucus radicans and Fucus vesiculosus in Swedan and Estonia

A new scientific publication has just come out in the journal Estuarine, Coastal and Shelf Science by Ellen Schagerström, Helena Forslund, Lena Kautsky, Merli Pernoja and Jonne Kotta.

The article compared the thallus complexity and quantified the abundance and biomass of epiphytic algae and invertebrate taxa of the two fucoid species Fucus radicans and Fucus vesiculosus from sympatric sites in the Bothnian Sea on the Swedish coast and around the Estonian island Saaremaa.

Fucus radicans had a more complex thallus structure than Fucus vesiculosus within the whole study range, but both species were more complex in the Bothnian Sea compared to Estonia. The complexity of host algae did not contribute to their associated flora and fauna taxon richness; instead, the size of thalli was a good proxy for associated communities.

You can read the article HERE for free until November 8th, courtsey of Elsevier Ltd.

Fucus radicans (left) is more complex or "bushy" than Fucus vesiculosus (right)

Fucus radicans (left) is more complex or “bushy” than Fucus vesiculosus (right)

Guest blog from the 15th Scientific Conference of the Section Phycology

At the end of Feburary, our German collegue Balsam Al Janabi attended the 15th Scientific Conference of the Section Phycology, organized by the German Botanical Society. We persuaded her to tell us about it as a Guest Blogger.

The 15th Phycology seminar took place in the beautiful marine museum of Stralsund from 23rd until the 26th of february 2014. Members from the Phycology Section of the German Botanical Society and other researchers presented a huge variety of phycology research. Organized by the University of Rostock, Prof. Dr. Ulf Karsten lead us through 59 oral presentations and 2 poster sessions, so that about 100 scientists had the change to know the research of almost all phycological disciplines and to establish contacts. English presentations were held from Bachelor-, Master-, PhD-students and Professors from Austria, Ireland, Greece, Netherlands, Mongolia as well as all over Germany, especially Kiel, Rostock, Cologne and Constance.

Phycological presentations
Eleven structured sessions, brought the audience through different principle topics with special secctions of Polar and high Alpine Phycology, the Bioacid project and a presentations in memorium to Prof. Dr. Dieter Mollenhauer (who passed away May 2013) and in honor to his contributions to his activities to promote phycology in Germany.

The antarctic research session included fascinating sessions showing the kelp system in the Antarctic seaweed system with regard to global change revealing biomass and biodiversity changes up to ecotypic differentiation. Stecher, winner of the best talk award, brought the audience below the ice of the Arctic and the DNA- and RNA of sea ice algal communities. Besides future research, also insights into the past were discovered by means of Paleolimnological studies: radiocarbon-dated sediment revealed informations about diatoms, pollen and geochemical proxies up to the Neolithic period. Analysis of biodiversity was another focus of the seminar, as for instance the diversity of the rain forest in equador. Physiological aspects, as the light regulation in diatoms explained the role of aureochromes and cryptochromes by gene silencing methods. Other approaches from terrestrial habitats revealed transcriptomic analysis as in Klebsormidium crenulatum with regard to the physiological performance under desiccation stress. Investigations about microphytes were often interesting in this seminar, as during the applied phycology session, showing the usage of algae for biogas production. The variety of disciplines was also shown by a presentation about the BIOMEX project illustrating not only the laboratory analysis of space conditions for cyanobacteria, algae and even mosses, but also the planned analysis in the international space station (ISS).

Seaweed research
The Bioacid session focused on the climate change scenaria from mesocosm experiments in the Kiel Benthocosms, a near-natural scenario analyzing a seewead community as including an experiment on the interaction of environmental stress and genetic diversity of Fucus vesiculosus. Also bacterial communities of the biofilm between the present and future scenario are compared. Fucus vesiculosus was also analyzed for their seasonality of defense as a response to the seasonal variation of micro- and macrofouling pressure. Furthermore, the gen expression under herbivore grazing was demonstrated for Fucus vesiculosus. Also other physiological aspects of brown macroalgae (Phaeophyceae) showed the iodine to salinity response in Laminaria digitata and mechanisms of photoacclimation of the giant kelp Macrocystis pyrifera revealed the relation of antioxidants with the depth at which algae appear. The role of two bacteria for morphogenesis was presented for the green algae Ulva mutabilis.

Networking and Award Ceremonies

Future network was supported by talks about the GBIF database for algae and protists as well as by insights in the SAG culture collection. During the award ceremony of best poster, Algological study and E.G. Pringsheim-Prize, the winner of the ‘Hans-Adolf von Stosch Medal’ was Prof. Dr. Michael Melkonian for his great contributions in Protistology and Phycology. He shared his experiences of decades of phycological investigations as well as appreciated cooperations.
Personally I appreciate the participation of the phycology seminar, especially due to the mixture and the connection not only of disciplines, but also of specialists and opportunities as a PhD student having the chance to discuss my methods and results with during a nice coffee brake.
//Balsam Al Janabi

Have you attended any seaweed events or do you work with seaweed and would like to tell us about it?
Feel free to contact us and become a Guest Blogger at http://www.balticseaweed.com