Saida belongs to the family Gadidae. Body, this fish is long and elongated, with stiff, planted close together, but having a clear outline of the dorsal fin and podhvostovymi: 3 dorsal, 2 podhvostovyh and a strong forked caudal fin. The lateral line runs parallel to the back and we can distinguish a clear light stripes. Coloring the back – black, sometimes varies from dark green to blackish-brown, sides darker, with a silvery shade. Belly – a silvery-white.

The head is very soft contours. Lateral line saithe clearly expressed. Saida lives in flocks, and lives in the North Atlantic Ocean from the Canadian coast to the Barents Sea, south to the Bay of Biscay Bay. She also found off the coast of Iceland, Spitsbergen, Norway and the North Sea. Fishing, pollock unbeaten fighter, which sometimes makes the angler to go to extremes.

Pollock inhabit the bottom, swims on the hunt in the Middle water. After years of migration in search of food, from the beginning of autumn mature individuals flock to the places of spawning. Pollock spawn in the open sea, and on its bottom. For this northern population is coming to the northern shores of the British Islands and Norway, and the desired depth varies from 100 to 200 meters and the water temperature – 6-10 degrees above zero. From January to April, the females lay up to 220,000 pollack roe. Older females may defer up to one million eggs. At the western coast of Atlantic side spawning begins in October in the Bay of Massachusetts, as well as off the coast of Cape Cod and Nova Scotia. He concludes in March. Juveniles feed on pollock tsiklopkami, shrimp and other fish fry. Adults individuals prey on herring, shellfish, sprat, and the North Sea and on capelin. At length pollack reaches 1.30 m and weighs, with up to 30 kg.