We have introduced a new service allowing DAN Europe Members to call the emergency hotline also via the Internet.
This makes it now possible to contact our Alarm Center even when cellular signal reception is poor.
It also allows long-distance calls to be made without incurring excessive costs.
We remind you that you can contact the Alarm Center through the following channels:
Reefs are vital centres of marine biodiversity. Yet, human activities like overfishing, deep-sea mining, dredging and trawling have led to their significant decline worldwide. Hence, there is an urgent need to implement efficient restoration initiatives to restore biodiversity.
A recent study published in Frontiers in Marine Science reveals an unexpected ally in this mission: fruit trees.
The study, conducted in the Dutch Wadden Sea, involved sinking felled pear trees into the sea to reconstruct reefs and enhance local marine biodiversity.
I have just booked my flight to the DEMA Show—the world’s largest dive show and industry event. When I made my reservation, I selected Scandinavian Airlines because they now offer travellers the option of purchasing sustainable biofuel as part of the flight ticket, so one can fly with lower CO2 emissions. I also opted to pay for a full carbon offset of my trip. It hurt my wallet, but it lifted the ache I had in my tummy. Being a transatlantic trip, it did not come cheap, but I do not see that one has a choice any longer.
Nanomia bijuga hører til en gruppe organismer, der kaldes for physonect siphonophores, som er en gruppe af kædelignende hydrozoiske rovdyr, der er beslægtede med gopler, anemoner og koraller.
Denne sifonofor bevæger sig rundt i havet i kolonier, der måler omkring 30 centimeter i længden. Hver sektion i en koloni er en specialiseret gruppe af genetisk identiske individer, der udfører forskellige funktioner.
I mange tilfælde er vurderingen af fiskebestandes størrelse baseret på data, der stammer fra fiskeri såsom fiskemarkeder og auktioner. Man opererer med en antagelse om, at jo lavere fangsterne er indenfor en vis periode, jo mindre må fiskebestanden være. Altså en direkte korrelation.
Men tyske forskere har netop vist, at nogle fiskearter ændrer adfærd for at undgå redskaber i områder med høj lystfiskerintensitet sammenlignet med fisk, der udsættes for lave udnyttelsesniveauer i nærheden af beskyttede havområder.
Med nogle års mellemrum finder en mindre sammenkomst og eksklusiv dykkerkonference med deltagelse af ledende forskere sted på den lille Italienske ø Ponza der ligger et par timers rejse syd for Rom. Den næste og ottende i rækken bliver holdt den 8.–12. maj 2024.
In an unprecedented archaeological feat, the shipwreck known as "Marausa 2," which sank off Marausa, Sicily, in the late 3rd century, has been meticulously recovered from the seabed in its entirety. This marks the first instance where a Roman ship has been raised in its complete form, as opposed to being retrieved piece by piece.
This light-weight combination snoot kit with sleek design includes snoot lens, color filters and dive light.
For dependable fiber optic triggering of a compatible fiber optic underwater strobe, use this compact, independently sealed device instead of the flash bulkhead.
