Slides with isolated sponge spicules from the Cretaceous
Chalk rock from the Late Cretaceous with sponge spicules fossils trapped inside (in brown). This is a Tetractinellida sponge, some of which are today key players of sponge grounds
Chert rock from the late Jurassic, made from the accumulation of millions of Geodia sponge spicules
Looking at a section of this chert with an optical microscope, we can see that it is made of numerous ball-shaped Geodia spicules (made of silica)
These giant ammonites lived during the late Cretaceous, at the same time as well-known dinosaurs (Tyrannosaurus, Triceratops, Hadrosaurus, etc) but also some of the sponges we have examined!
A rich photogallery from the 2017 G.O. Sars research cruise – our researchers have studied very different deep-water sponge grounds, ranging from the 1300 m deep Norwegian fjords, the coral-associated grounds on the outer continental shelf, the Barents Sea, and to depths down to 3000 m along the Arctic Mid-Ocean Ridge. Read the report here.
The G.O. Sars 2017 cruise is over – thanks everybody!!
The G.O. Sars research vessel
The G.O. Sars takes to the sea from Bergen, Norway
The Euronews troupe covers the Aegyr ROV
One of the cameras on the AEgyr ROV
The AEgyr ROV is equipped with lots of devices!
The long cable of the AEgyr ROV
The AEgyr ROV is ready for a dive!
… and back
The control room aboard the G.O. Sars
A rich deep-sea sponge ground, here in the Knipovich Ridge, seen from the control room
Operating incubation chambers for in-situ work is not easy…
… chambers are carefully deployed over deep-sea sponges …
… incubation chambers will stay in place for 8 h to understand now deep-sea sponges are involved in oceanic nutrient cycling
All operations are carefully supervised in the control room
Big deep-sea sponges between the Sula reef and Lofoten
Deep-sea sponge grounds are rich in fauna (not just sponges)
Trawling marks on sponge grounds
Fine-scale maps of the deep-sea bottom obtained merging video footage and ROV-mounted multibeam data
And the G.O. Sars sails….
Moving the lander before deployment
Once the rosette sampler is back onboard, deep-sea water can be retrieved…
The control room is always busy…
Snapshots from our participation to the three-day High-Level Ministerial and Scientific EventA New Era of Blue Enlightenment and culminating with the landmark signature of the Statement on Atlantic Research and Innovation Cooperation (Thursday 13th July, at Bélem Tower – Lisbon, Portugal), launching the South Atlantic Research and Innovation Flagship Initiative between the EU, Brazil and South Africa. Read the full story here.
A New Era of Blue Enlightenment
The Statement on Atlantic Research and Innovation Cooperation is being signed
Signatures on the Statement on Atlantic Research and Innovation Cooperation
Representatives of “sister projects” SponGES, ATLAS and MERCES at the event
Our Scientific Project Manager Joana Xavier about SponGES on Friday
Our Scientific Project Manager Joana Xavier about SponGES on Friday
A quote by Karmenu Villa on linkages between initiatives
The Bélem Tower, where the Statement was signed
SponGES at the 10th World Sponge Conference! (read short summary here, or check #WorldSponge10 on Twitter for more info).
cover of the 10th World Sponge Conference book of abstracts
Overview of the auditorium – talking deep-sea sponges!
Closing the 10th World Sponge Conference – see you in Bali!
Our coordinator Hans Tore Rapp talks about SponGES
Some more deep-sea sponges…
SponGES at thw 10th World Sponge Conference!
Taxonomy of glass sponges – the workshop
At the workshop on transatlantic cooperation for deep-sea research
How to pulverize a deep-sea sponge? This gallery shows Master student Patryk Nilsson (Uppsala University – Division of Pharmacognosy, have a look at the sponges’ natural products group site!) on his quest to explore secondary metabolites of Geodia hentscheli (this very specimen was sampled on the Schultz Massive Seamount in the Greenland Sea). It all culminated in the last picture: on the right the beautiful yellow extraction of G. hentscheli – on the left, other Master students made the same extraction for a different yet closely related sponge species, Geodia barretti. You can already see: different color = different chemistry. However, rewind: what was the first step to get there? Reduce the sponge into a fine, dry powder! Not really an easy task…
Patryk Nilsson cuts the frozen sponge into pieces
Geodia hentscheli sampled during a SponGES research cruise is put in a steel container to fit a larger blender
Result after blending! It’s sponge purée, or hummus 🙂
After freeze drying for a couple of days, here is a totally dry sponge powder. Its chemical compounds are ready to be extracted with a solvent!
Patryk holding the results of two chemical extractions