Fresh water

Denmark: Slåensø – Freshwater Diving

Slåensø, Denmark. Photo by Peter Symes
Slåensø, Denmark. Photo by Peter Symes

Approximately right in the centre of Jutland, the western peninsular part of the realm, there is a region called Søhøjlandet, which translates to “The Lake Highland.” It is a sparsely populated and largely forested area with many lakes, a large part of which make up a reserve.

River Treasures: Freshwater Biodiversity in Italy

The trench live in freshwater lakes and streams. Photo by Marco Colombo.

When considering underwater photography, we usually think about images of wonderful coral reefs, colourful fish, clear waters and undersea landscapes. In fact, 70 percent of our planet is covered by water on its surface, and, even though 97 percent of this is saltwater, the remaining three percent is freshwater in rivers, streams, lakes, ponds, marshes and groundwater.

Austrian Lakes: Grübl See & Grüner See

We were lucky to be some of the last few divers to enjoy the crystal clear waters of Grüner See before diving was banned in 2017. Photo by Marco Daturi.

Austria offers divine diving at high altitudes in freshwater lakes. Marco Daturi takes us to two beautiful lakes found in the mountains of Styria­­—one that continues to enthrall and one which has recently been closed for conservation and protection.

Pacific Northwest: Sockeye Salmon

We walked nearly a mile along the riverbank before finding a place where we could easily enter with our heavy equipment. The rotting carcasses of dead fish lay along the banks, and the associated stench was overpowering. It was late September 2010, and we had come to photograph an enormous migration of sockeye salmon, the largest run of sockeye in a century.

The loudest penis is that of a tiny European species of aquatic freshwater insect.

Water Insect Sets Noise Record With 'Singing Penis'

In a recent study published in the journal PLoS One, French and Scottish scientists have discovered that the 2mm long water boatman Micronecta scholtzi make the loudest sounds of any animal on earth relative to its body size. Although the sperm whale may be louder in sheer terms of decibels, when compared to size, the water boatman has all other animals beat.