Acipenseriformes - Sturgeons and Paddlefish
Syngnathiformes - Pipefishes and Seahorses
Anguilliformes - Eels and morays
Salmoniformes - Salmons and Trouts
Moroniformes - Temperate basses
Mugiliformes - Mullets
Clupeiformes - Herrings
Perciformes - Perches
Spariformes - Breams and porgies
Beloniformes - Needlefishes
Labriformes - Wrasses
Scombriformes - Mackerels
Scorpaeniformes - Mail-cheeked fishes
Gadiformes - Cods
Mulliformes - Goatfishes
Gobiiformes - Gobies
Carangiformes - Jacks
Pleuronectiformes - Flatfishes
Trachiniformes - Weeverfishes
Aulopiformes - Grinners
Blenniiformes - Blennies
Lamniformes - Mackerel sharks
Carcharhiniformes - Ground sharks
Torpediniformes - Electric rays
Rajiformes - Skates and rays
Orectolobiformes - Carpet shark
Osmeriformes - Smelts
Chimaeriformes - Chimaeras
Squatiniformes - Angelsharks
Hexanchiformes - Six-gill sharks
Rhinopristiformes - Shovelnose rays
Myxiniformes - Hagfishes
Myliobatiformes - Stingrays
Zeiformes - Dories
Tetraodontiformes - Puffers and filefishes
Dactylopteriformes - Flying gurnards
Lampriformes - Lamprids
Squaliformes - Sleeper and dogfish sharks
Lophiiformes - Anglerfishes
Acanthuriformes - Surgeonfishes
Cyprinodontiformes - Toothcarps
Notacanthiformes - Spiny eels
Saccopharyngiformes - Swallowers and Gulpers
Argentiniformes - Marine smelts
Myctophiformes - Lanternfishes
Beryciformes - Sawbellies
Ophidiiformes - Cusk-eels
Acropomatiformes - Oceanic basses
Atheriniformes - Silversides
Callionymiformes - Dragonets
Gasterosteiformes - Sticklebacks
Gobiesociformes - Clingfishes
The Skagerrak is a strait running between the Jutland peninsula of Denmark, the southeast coast of Norway and the west coast of Sweden, connecting the North Sea and the Kattegat sea area through the Danish Straits to the Baltic Sea.
The Skagerrak contains some of the busiest shipping routes in the world, with vessels from every corner of the globe. It also supports an intensive fishing industry. The ecosystem is strained and negatively affected by direct human activities. Oslo and Gothenburg are the only large cities in the Skagerrak region.
The Skagerrak is 240 km (150 mi) long and between 80 and 140 km (50 and 87 mi) wide. It deepens toward the Norwegian coast, reaching over 700 m at the Norwegian Trench. Some ports along the Skagerrak are Oslo, Larvik and Kristiansand in Norway, Skagen, Hirtshals and Hanstholm in Denmark and Uddevalla, Lysekil and Strömstad in Sweden.
The Skagerrak has an average salinity of 80 practical salinity units, which is very low, close to that of brackish water, but comparable to most other coastal waters.
The area available to biomass is about 3,600 km2 (1,400 sq mi) and includes a wide variety of habitats, from shallow sandy and stony reefs in Sweden and Denmark to the depths of the Norwegian trench.
