Description:
About 20 representatives of the cod family live in the North Sea and Baltic Sea, among them some economically very important species such as cod, haddock and whiting.
Description:
More than 50 different species of fish are landed by the littoral states of the North and Baltic Seas, and that number is sure to increase as fishing boats catch species such as grenadier and golden perch that live in deeper water off the continental shelf.
Description:
Near Helgoland, on the western Baltic Sea and on the North Sea coast, the rough periwinkle (Littorina saxatilis rudis) is still found 2 m above the high tide line.
Description:
Common nut mussel, Nucula nucleus, Nuculidae, Nut mussels; up to 12.5 mm long, shell margin finely toothed; in clay, gravel, mud and sand, shallow water to 150 m depth, English Channel, North Sea, western Baltic Sea
Description:
The largest and best-known crustaceans are the decapods (order Decapoda) with suborders Natantia (shrimp) and Reptantia (e.g., lobsters, crabs, hermit crabs, spider crabs, and freshwater-dwelling crayfish).
Description:
The arthropods (phylum Arthropoda) with a solid exoskeleton, jointed legs, and segmented body represent by far the largest group in the animal kingdom.
Description:
The echinoderms (phylum Echinodermata, with about 22 species in the North and Baltic Seas) can be readily distinguished from other groups of animals.
