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Ivana and Janez

Octopuses – They have it all!

by Ivana and Janez - 22nd June 2018
Who doesn’t like octopuses? They have it all: beautiful, smart and unique. These molluscs are part of the order ‘Octopoda’ (eight limbs) and are...
Underwater Tales by Stefano Sibona

Diving at the Lighthouse, Portofino, Italy

by Underwater Tales by Stefano Sibona - 16th May 2018
"The lighthouse point in Portofino is one of the most suggestive sites of the promontory. A unique, spectacular environment and a dive waiting to be d...
Ivana and Janez

The Wobbegong Shark

by Ivana and Janez - 16th March 2018
When I first heard the name 'Carpet shark', I thought it was a joke. The name does not sound very complimentary, and I would never believe that a fami...
Ivana and Janez

Mantas – the gentle giants of the seas

by Ivana and Janez - 7th February 2018
Manta rays – the diver's dream. Belonging to the family Mobulidae, there are two species of Manta Ray often seen and admired by divers: Manta birost...
Herbert

Cuttlefish: underestimated players in the ocean

by Herbert - 9th January 2018
Squids play an important role in the food web and in the carbon cycle Squid are marine creatures with fascinating biological properties. Some speci...
Herbert

Video footage sheds light on deep-sea food webs

by Herbert - 19th December 2017
Jellyfish and related organisms are among the most important predators The animals of the deep sea have been systematically studied for over 100 ye...
Herbert

Scientists discover flexible self-healing ability in ctenophora

by Herbert - 6th December 2017
Wound healing or regeneration – the environment decides Losing a body part is almost always an irreversible situation for humans – we cannot gr...
Ivana and Janez

The Lions of the Ocean

by Ivana and Janez - 1st December 2017
Lionfish (Pterois spp) are represented by 12 very closely related species. These majestic and amazing looking fish are among underwater photographe...
Herbert

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 to the North Sea. A j...
Herbert

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. As a result of global warming, there are increasingly...
Mares

The Myth of the Jellyfish

by Mares - 1st September 2017
When I asked my child what jellyfish were, she said they are half fish, half jelly… Well nothing could be further from the truth, as they are not ev...
Gerald

Bahama Mamas – the Tiger Sharks of the Bahamas

by Gerald - 11th August 2017
Shark diving is probably one of the things almost every diver wants to do at least once in his life. I've been diving around the world for many years ...
Herbert

Copepods rise and shine to internal genetic clocks

by Herbert - 7th August 2017
The Calanus finmarchicus is a copepod that packs a big punch. Although just two to four millimetres, this zooplankton’s genetic clock influences the...
Mares

The living dinosaurs of the sea

by Mares - 4th August 2017
Out of the seven species of sea turtles, six have made it onto the International Union for Conservation of Nature's (IUCN) red list, with two species ...
Herbert

‘Weedy’ fish species to dominate future oceans due to ocean acidification

by Herbert - 24th July 2017
Such fish are “marine equivalent to rats” For the first time, researchers at University of Adelaide have demonstrated that the ocean acidificat...
Mares

The secret beauty of Nudibranchs

by Mares - 13th July 2017
Nudibranchs come in many different colours, shapes and sizes. According to various sources, there are between 2000 - 3000 different species of nudibra...
Mares

Adriatic Cuttlefish

by Mares - 16th June 2017
Cuttlefish or cuttles are marine animals of the order Sepiida. They belong to the class Cephalopoda, which also includes squid, octopus, and the nau...
Herbert

Why do krill stocks in Antarctica fluctuate?

by Herbert - 9th June 2017
Climatic influences not as important as previously thought Although just six centimeters long, the Antarctic krill (Euphausia superba) plays an imp...
Franco and Sabrina

Vamonos à bucear

by Franco and Sabrina - 15th May 2017
The look of the Baja California Sur can appear tedious: cactus, desert, rocks, beaches and vice versa, but the underwater side of the coin is aweso...
Mares

Compass jellyfish in Boka Bay, Montenegro

by Mares - 13th May 2017
Jellyfish...so graceful and elegant, yet at the same time found in so many different colors and shapes. Their movements remind you of an underwater ...
Hannah

Surviving Murphy’s Law to study sharks

by Hannah - 24th April 2017
Have you ever had one of those days when just about everything goes wrong? Mine started out breaking one of my own rules: not packing my own dive ge...
Emir

Mediterranean Great Sharks Project

by Emir - 23rd April 2017
The 'GranResearch Program', named 'GREBA', has been running since 2015 and aims to identify, label and study shark species in Algerian waters. &nbs...
Herbert

First cave fish in Europe discovered

by Herbert - 5th April 2017
Fish is also world's most northerly cave fishFew species are as well hidden as those that live underground. In Europe, there are many animals in the ...
Franco and Sabrina

Moments of a lifetime caught on camera : Snorkelling side by side with the sperm whales of the eastern Caribbean Sea

by Franco and Sabrina - 29th November 2016
This post starts our contribution to the Mares blog, to which we are absolutely grateful, and our first post is about the sperm whales of the Car...
Morne Hardenberg

Best Guadalupe Season Since 2012!

by Morne Hardenberg - 18th November 2016
We have just completed two EPIC expeditions to Isla Guadalupe off the west coast of Baja Peninsula! The volcanic island lies roughly 230km off the coa...
Mares

Great Barrier Reef continues to be under threat from coral bleaching

by Mares - 4th November 2016
Scientists publish interactive map Scientists from the ARC Centre of Excellence for Coral Reef Studies at James Cook University are surveying the ...
Morne Hardenberg

The greatest ocean safari on the planet!

by Morne Hardenberg - 19th October 2016
Every year, over the months of June/July, we spend 40 days on South Africa's "Wild Coast" waiting for the mass migration of sardines which moves up th...
Herbert

Diving into the jaws of history

by Herbert - 13th July 2016
On the trail of the giant prehistoric sharks. A chat with fossil hunter William “Bill” Eberlein William “Bill” Eberlein has been diving...
Herbert

Turtle herpes outbreak may be due to pollution

by Herbert - 11th July 2016
Disease causes growths that obstruct turtle's vision Green sea turtles, which are currently endangered, are facing another threat – a debilitati...
Herbert

Researchers discover that sponges are host to surprising diverse range of microbes

by Herbert - 17th June 2016
Discovery opens door to potential new discoveries in the futureSponges are important hosts for microbes, making up a significant part of the total ra...
Mares

Coral bleaching makes fish easy prey

by Mares - 17th May 2016
The current spate of coral bleaching in Australian waters is preventing baby common damselfish from learning how to identify which fish species are ...
Mares

Reef sharks prefer bite-sized meals

by Mares - 22nd April 2016
Many of us have the impression that sharks have a large appetite. However, a new study proves otherwise, indicating that most coral reef sharks tend...
Mares

Baby sharks defy ocean acidification

by Mares - 15th April 2016
Some baby sharks are able to cope with the level of ocean acidification predicted for the end of this century, according to a recently published Aus...
Mares

Scientists find thousands of red crabs “swarming like insects”

by Mares - 14th April 2016
Off the Pacific coast of Panama, researchers studying biodiversity at the Hannibal Bank Seamount got more than they bargained for. From within the D...
Mares

Straits of Gibraltar no deterrent to breeding eels

by Mares - 12th April 2016
Researchers, including one from the Technical University of Denmark, have proven for the first time that eels from the Mediterranean Sea do have a p...
Mares

Researchers measure platelet ice beneath Antarctic sea ice

by Mares - 8th February 2016
For the first time, sea ice physicists at the Alfred Wegener Institute (AWI) have developed a new method of efficiently measuring the distribution a...
Mares

Eurasian water shrew is Switzerland’s Animal of 2016

by Mares - 8th January 2016
A water shrew that hunts underwater has been named Animal of 2016 by Swiss environmental organisation Pro Natura. The Eurasian water shrew (Neomys f...
Mares

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 North America and Europe. Should th...
Mares

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 light signals from eight rows of...
Herbert

Maldivian Resort Welcomes 124 Baby Turtles

by Herbert - 19th August 2015
Baby Turtles On Maldivian Island Resort Velassaru In the Dhivehi language, the word 'veela' means 'turtle'. Hence, it is no wonder that a Green Tu...
Herbert

Palau – The Ultimate Diver’s Paradise

by Herbert - 7th July 2015
Wrecks, drift drives, with lots of sharks, manta rays and macro life – Palau has everything that divers would wish for, and more. The only downside ...
Herbert

Biology: Rays

by Herbert - 6th July 2015
The Art of “Underwater Flight” The dance of mantas in the ocean certainly leaves no diver unmoved. The majesty of spotting (and swimming along...