![Herbert](https://blog.mares.com/wp-content/uploads/2016/06/Herbert-150x150.jpg)
Bluefin tuna return to North Sea
by Herbert - 2nd October 2017
Researchers tag fish with satellite trackers After an absence of more than 50 years, the endangered bluefin tuna has returned…
![Mares](https://blog.mares.com/wp-content/uploads/2016/06/Mares_blog-2-150x150.jpg)
Reintroduction of European flat oysters in German North Sea
by Mares - 30th June 2016
Three-year trial will set up foundation for restoration of species For the first time, the German Federal Agency for Nature…
![Carlo](https://blog.mares.com/wp-content/uploads/2017/04/IMG_20140716_134938-150x150.jpg)
Mares Freediving Expedition – Sailing to the north of the Tyrrhenian Sea!
by Carlo - 24th June 2019
This time on the Mares Freediving Expedition we have chosen a sailboat to take us to the north of the…
![Franco and Sabrina](https://blog.mares.com/wp-content/uploads/2016/08/1216329-Franco-e-Sabrina-150x150.jpg)
Baja California Sur Safari – 2023 season
by Franco and Sabrina - 28th November 2023
It’s easy to understand why we return to Mexico's Baja California Sur almost every year. The five destinations we visit…
![Alex](https://blog.mares.com/wp-content/uploads/2021/07/UK21_am-19240-copy-150x150.jpg)
Red Sea Heat
by Alex - 30th August 2023
We tend to think of coral seas as being close to the equator and therefore changing little through the year.…
![Ivana and Janez](https://blog.mares.com/wp-content/uploads/2017/10/ivana-i-janez-Medium-550x367-1-150x150.jpg)
The Leopards of the Seas
by Ivana and Janez - 24th April 2023
Leopard sharks are one of the most common sharks in the Eastern North Pacific. Their scientific name, Triakis semifasciata, means “half…
![Ivana and Janez](https://blog.mares.com/wp-content/uploads/2017/10/ivana-i-janez-Medium-550x367-1-150x150.jpg)
Eilat, Jerusalem, the Dead Sea – A winter adventure in Israel
by Ivana and Janez - 11th April 2023
This year's first diving expedition took us to the Israeli resort of Eilat, on the coast of the Red Sea.…
![Gerald](https://blog.mares.com/wp-content/uploads/2017/01/Gerald-Novak-150x150.jpg)
‘Baitball’ watching in the open sea
by Gerald - 12th July 2021
"May the god of the sea spoil you with happiness and let a mighty school of fish slide over your…
![Submaris](https://blog.mares.com/wp-content/uploads/2018/03/20161030_submaris_team_00042-150x150.jpg)
Open Ocean Research
by Submaris - 10th April 2018
The Big Blue! Finally! After three days of travelling via plane, a short delay of one day due to carnival,…
![Herbert](https://blog.mares.com/wp-content/uploads/2016/06/Herbert-150x150.jpg)
Increase in melting sea ice may lead to higher food supply in Arctic
by Herbert - 26th September 2017
In the Arctic, melt ponds are formed every year when snow and sea ice melt at the end of winter.…
![Herbert](https://blog.mares.com/wp-content/uploads/2016/06/Herbert-150x150.jpg)
Researchers measure unusually high oxygen uptake in the Labrador Sea
by Herbert - 13th September 2017
Ocean taking a deep breath? Stormy, rough and very cold: these characteristics of the Labrador Sea may initially seem uncomfortable,…
![BGfU](https://blog.mares.com/wp-content/uploads/2017/07/DSC0037-2-150x150.jpg)
‘Expect the unexpected’ – Underwater archaeological research around the island of Mozia, Sicily
by BGfU - 22nd August 2017
In July 2017, scientific divers of the Bavarian Society for Underwaterarchaeology (BGfU) and the Philipps University Marburg were invited by…
![Herbert](https://blog.mares.com/wp-content/uploads/2016/06/Herbert-150x150.jpg)
Freshwater sources in the sea
by Herbert - 20th July 2017
The invisible water resource In the scientific journal Earth Science Reviews, geologists Nils Moosdorf and Till Oehler from the Leibniz…
![Mares](https://blog.mares.com/wp-content/uploads/2016/06/Mares_blog-2-150x150.jpg)
Researchers gather at Great Barrier Reef to study latest coral bleaching
by Mares - 21st March 2017
Aerial and underwater surveys to be conducted As coral bleaching strikes the Great Barrier Reef for the second year in…
![Mares](https://blog.mares.com/wp-content/uploads/2016/06/Mares_blog-2-150x150.jpg)
Wave-Glider: Keeping track of marine research in real time
by Mares - 3rd March 2017
Online portal for Wave Glider missions launchedWave Glider missions can now be viewed online – and they are live. Operated…
![Mares](https://blog.mares.com/wp-content/uploads/2016/06/Mares_blog-2-150x150.jpg)
Map of seafloor shows new details about 2015 eruption at Axial Seamount
by Mares - 29th December 2016
The Axial Seamount, an underwater volcano about 470 kilometres off the Oregon coast, is one of the world's most active…
![Mares](https://blog.mares.com/wp-content/uploads/2016/06/Mares_blog-2-150x150.jpg)
New insights into the changes of the Nordic Seas during interglacials
by Mares - 5th December 2016
The characteristics of the water masses in the Nordic Seas are expected to change due to the Earth's higher temperatures…
![Mares](https://blog.mares.com/wp-content/uploads/2016/06/Mares_blog-2-150x150.jpg)
Arctic sea ice at its second-lowest ever this September
by Mares - 16th September 2016
In September 2016, the surface of the Arctic sea ice shrank to nearly 4.1 million square kilometres – the second…
![Mares](https://blog.mares.com/wp-content/uploads/2016/06/Mares_blog-2-150x150.jpg)
WWF salvages discarded ghost nets in Baltic Sea
by Mares - 1st August 2016
Divers can help by reporting location of ghost netsIt was a successful start to the campaign: A big trawl net…
![Mares](https://blog.mares.com/wp-content/uploads/2016/06/Mares_blog-2-150x150.jpg)
Overfishing causes collapse of cod fisheries in Baltic Sea
by Mares - 15th July 2016
Scientists suggest revision of maximum catch quotas Cod is the great predator of the Baltic Sea and the main fish…
![Cat](https://blog.mares.com/wp-content/uploads/2016/07/profile-pic-150x150.jpg)
The Red Sea still drawing in the divers…..
by Cat - 11th July 2016
I am sat in my office trying to catch up on some paperwork in between packing my bags once again…
![Mares](https://blog.mares.com/wp-content/uploads/2016/06/Mares_blog-2-150x150.jpg)
Deciphering the history of plate tectonics in North Pacific
by Mares - 14th June 2016
Researchers embark on ten-week expedition The land along the archipelago of the Aleutian Islands and the Kamchatka Peninsula is one…
![Mares](https://blog.mares.com/wp-content/uploads/2016/06/Mares_blog-2-150x150.jpg)
This year’s decline of Arctic sea ice may be as bad as the record low of 2012
by Mares - 19th May 2016
At the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI), sea ice physicists have predicted that the…
![Mares](https://blog.mares.com/wp-content/uploads/2016/06/Mares_blog-2-150x150.jpg)
Researchers use new method to date lava flows
by Mares - 11th April 2016
To better understand the formation of the Earth's crust, scientists at the GEOMAR Helmholtz Centre for Ocean Research Kiel have…
![Mares](https://blog.mares.com/wp-content/uploads/2016/06/Mares_blog-2-150x150.jpg)
Book launch at Maritime Museum shines light on first German deep-sea expedition
by Mares - 7th March 2016
Zoologist Carl Chun from Leipzig was fascinated by the possibilities within the deep sea. In a speech to the German…
![Mares](https://blog.mares.com/wp-content/uploads/2016/06/Mares_blog-2-150x150.jpg)
Invasive seaweed develops stronger defences
by Mares - 4th January 2016
A higher level of defence has been found within an invasive strain of seaweed from Asia that has translocated to…
![Mares](https://blog.mares.com/wp-content/uploads/2016/06/Mares_blog-2-150x150.jpg)
Plastic waste threatens lives of seabirds in Helgoland
by Mares - 11th December 2015
Pilot study initiated to gather more information High on the cliffs of Helgoland, a small German archipelago in the North…
![Mares](https://blog.mares.com/wp-content/uploads/2016/06/Mares_blog-2-150x150.jpg)
Arctic sea ice plays essential role in methane cycle
by Mares - 8th December 2015
Study uncovers link between seasonal melting of sea ice and release of methane gas The ice-covered Arctic Ocean plays a…
![Mares](https://blog.mares.com/wp-content/uploads/2016/06/Mares_blog-2-150x150.jpg)
Italian navy divers seal off wreck
by Mares - 4th December 2015
Explosives inside wreck stolen by local Mafia syndicate A ship which had over the years become a source of explosives…
![Mares](https://blog.mares.com/wp-content/uploads/2016/06/Mares_blog-2-150x150.jpg)
Mesmerising creatures of the sea, yet so vicious – Misadventures with comb jellies
by Mares - 18th November 2015
Looking through the mask, it appears as if an alien lifeform is trying to communicate with the divers, flashing its…
![Mares](https://blog.mares.com/wp-content/uploads/2016/06/Mares_blog-2-150x150.jpg)
Billions of juvenile polar cod under Arctic sea ice
by Mares - 14th October 2015
With a newly developed netting gear, marine scientists at the Alfred Wegener Institute managed to catch a large number of…
![Herbert](https://blog.mares.com/wp-content/uploads/2016/06/Herbert-150x150.jpg)
Eilat: In The Sea And On The Sand For Your Fun In The Sun
by Herbert - 17th July 2015
For Your Fun In The Sun When temperatures start to drop during those winter months in Germany, many of us…
![Submaris](https://blog.mares.com/wp-content/uploads/2018/03/20161030_submaris_team_00042-150x150.jpg)
A Riddle in the Dark – Finally Solved: The Mysterious Sinking of the German U-Boat UC 71 of Heligoland in 1919
by Submaris - 26th May 2020
Up until the end of World War I, UC 71 carried out a total of 19 enemy patrols under five…
![Submaris](https://blog.mares.com/wp-content/uploads/2018/03/20161030_submaris_team_00042-150x150.jpg)
The forgotten shipwrecks of the Battle of Heligoland – 1914
by Submaris - 14th March 2019
On the 28th of August 1914, the first naval battle of the First World War was fought between ships from…
![Herbert](https://blog.mares.com/wp-content/uploads/2016/06/Herbert-150x150.jpg)
Thousands of dolphins die as countries ignore EU regulations
by Herbert - 23rd November 2017
Whales and dolphins continue to perish as bycatch in fishing nets The Whale and Dolphin Conservation Organization (WDC) has examined…
![Mares](https://blog.mares.com/wp-content/uploads/2016/06/Mares_blog-2-150x150.jpg)
How are whales and dolphins doing in Europe?
by Mares - 24th May 2017
New population estimates released Ten EU Member States have carried out a survey of the distribution and abundance of whales…
![Mares](https://blog.mares.com/wp-content/uploads/2016/06/Mares_blog-2-150x150.jpg)
Kiel Fjord as training ground for mussels
by Mares - 4th May 2017
Genetic adaptation likely to have occurred over many generations Mussels from the Kiel Fjord were discovered to be able to…
![Herbert](https://blog.mares.com/wp-content/uploads/2016/06/Herbert-150x150.jpg)
New underwater observatory to monitor zooplankton
by Herbert - 10th December 2016
Scientists from the Thünen Institute of Sea Fisheries, Alfred Wegener Institute (AWI) and Helmholtz-Zentrum Geesthacht (HZG) have placed an optical-acoustic…
![Mares](https://blog.mares.com/wp-content/uploads/2016/06/Mares_blog-2-150x150.jpg)
Greenpeace gathers 24,000 signatures against oil drilling in national park
by Mares - 12th November 2016
High price for just a little oil Last week, Greenpeace activists handed over 24,000 signed postcards to Dr Robert Habeck,…
![Cat](https://blog.mares.com/wp-content/uploads/2016/07/profile-pic-150x150.jpg)
UK Inland Diving Locations Case Study – Stoney Cove
by Cat - 27th July 2016
The fact that the United Kingdom is an island, should mean that costal diving locations are plentiful and varied enough…
![Mares](https://blog.mares.com/wp-content/uploads/2016/06/Mares_blog-2-150x150.jpg)
Marine life make themselves at home amongst dropped boulders at reef
by Mares - 6th June 2016
Boulders also prevent fishing activities from taking place. The large boulders dumped into the Sylt Outer Reef in the North…
![Mares](https://blog.mares.com/wp-content/uploads/2016/06/Mares_blog-2-150x150.jpg)
International shipping routes and invasive species: What’s next?
by Mares - 26th April 2016
Scientists from Oldenburg and Frankfurt have modelled how the global shipping routes leads to the spread of invasive plant and…
![Mares](https://blog.mares.com/wp-content/uploads/2016/06/Mares_blog-2-150x150.jpg)
Environment groups call for more effective marine protection
by Mares - 18th March 2016
German environmental organisations have called for a more effective level of marine protection in the North and Baltic Sea by…
![Mares](https://blog.mares.com/wp-content/uploads/2016/06/Mares_blog-2-150x150.jpg)
GRD: Seen any harbour porpoises lately?
by Mares - 11th March 2016
As in previous years, the GRD (Society for Dolphin Conservation) is appealing to the public to report any sightings of…
![Mares](https://blog.mares.com/wp-content/uploads/2016/06/Mares_blog-2-150x150.jpg)
Whale carcasses from recent stranding dissected
by Mares - 10th February 2016
Staff from the German Oceanographic Museum had a whale of a task last weekend, dissecting the carcasses of three of…
![Mares](https://blog.mares.com/wp-content/uploads/2016/06/Mares_blog-2-150x150.jpg)
Thirty percent of UNESCO natural World Heritage Sites at risk
by Mares - 6th October 2015
Almost one-third of all 229 UNESCO Natural World Heritage Sites worldwide are being threatened by mining activity and the extraction…
![Andi](https://blog.mares.com/wp-content/uploads/2023/08/Andi-Cross-150x150.jpg)
Legends of the Andamans – The Andaman Islands, India
by Andi - 27th June 2024
A dream of ours for quite some time as an expedition team was to explore the wild and raw Andaman…
![Ivana and Janez](https://blog.mares.com/wp-content/uploads/2017/10/ivana-i-janez-Medium-550x367-1-150x150.jpg)
A mysterious fleet at the bottom of Lake Ohrid
by Ivana and Janez - 20th May 2024
In North Macedonia, at the bottom of Lake Ohrid, there is a mysterious sunken fleet. The ships sank during World…