Videos

A bristle worm shuts the door on us

A small bristle worm, just a few centimetres long, suddenly decides to withdraw into its house, closing the door tightly behind it.
More about the bristle worm.

Deepsea ambush

The small crustacean Neohela monstrosa waits patiently in its cave for small animals to pass, so that it can pounce on them and eat them. In the video you can see what happened to a krill that decided to take a breather right outside the cave. More...


Dancing squid

More about the squid (Gonatus fabricii).

In deep water on the continental slope

In the cold waters below the vertical boundary between Atlantic and Arctic water wildlife is totally different from what we find on the shelf. This video shows several cuts from various deep sea areas off Northern Norway, including the big sea pen Umbellula encrinus, the hydroid Corymorpha, amphipods with thorns on ther back, bottom-dwelling jellyfish, the deep sea fish black seasnail and stalked feather stars.

Dancing polychaete

This polychaete came paddling past right after the video rig had landed at 1460 meters depth off Langenesegga (MAREANO station No. R234). This polychaetes lives normally within a mucus/sand-tube in the seabed sediments. We have never heard that such polychaetes can paraglide off if they are disturbed. However, such behavior might be connected to short swarming periods.

Biodiversity in the Hola trench

There are many habitats in the great Hola trench off the coast of Andøya island. In the southern and western parts of the trench strong bottom currents form big sandwaves. At the northern part of the trench, coral reefs occur perpendicular to the sandwaves at 240-260 m depth. At about 220 meters, in the mid-trench area, active gas-seeps were found inclusive of threadlike bacteria waving in concert with the bottom currents.

Corals in Stjernsund off Finnmark County

Film clip from a Lophelia reef at 240 m depth at the threshold of Stjernsund. The video shows a great variety of species. Apart from Lophelia some of the most dominant animals include the yellow sponge Mycale lingua and the bubblegum coral (Paragorgia arborea) with several individuals of the brittle star called "Medusa head" (Gorgonocephalus sp.) that cling to the coral branches (MAREANO station no. R73).

The Malangen coral reef

At the top of the ridge that runs between Malangsgrunnen and Fugløybanken off Troms County, the Malangen reef occur at about 300 meters depth. In the deeper areas around the reef and the seafloor the fauna is quite different.

Sørøysund and Stjernsund

In the deeper parts of this fjord system the seafloor consists of soft sediments where sea pens are quite common. The species Pennatula phosphorea is seen in the beginning of this recording. Later we see a small bubblegum coral (Paragorgia arborea) with many other species that grow into the branches of this horn coral. This video cut is taken close to the Stjernsund treshold.

The Tromsøflaket shelf area and fishing ground

These cuts, shot between 200 to 250 m depth, largely shows habitats consisting of gravelly sand on sloping bottom areas, a fairly common habitat type with relatively high species diversity.

Various species on the bottom

Isopods

Isopods on the slope outside the Moskenes fishing ground at a depth of 1007 meters.

Burrowing hagfish

A hagfish (Myxine glutinosa) which effectively buries itself in the muddy bottom. After zooming out the camera shows us a sea cucumber (Stichopus tremulus) and sea pen (Kophobelemnon stelliferum).

A Diminutive goby

This is a Diminutive goby male (Lebetus scorpioides). They often use the bright dorsal fin to attract females or as a frightening signal against rival males. This observation is made much further north than earlier findings.

Lycodes frigidus

At nearly 2000 meters depth the video rig was attacked by an Arctic eelpout (Lycodes frigidus). It first ate a good mouthful of mud around the legs of the video-rig "Campod". Bottom mud has been found in the stomach of this particular species in previous studies. As the video rig probably looks like a rival, the fish swims with widened fins and open mouth, typically trying to scare the enemy. Arctic eelpout was shot several times in the deep waters surveyed, however mosst often lying quietly on the bottom.