The take of halibut is increasing steadily.
There are also important fisheries for cod, caplin, halibut, red fish (Sebastes) and nepisak (Cyclopterus lumpus); a shark (Somniosus microcephalus) is taken for the oil from its liver; and sea-trout are found in the streams and small lakes of the south.
C, Epibdella hippoglossi (from Halibut); ms, the two adoral suckers with the mouth (m) between them; ps, ventral sucker; ov, ovary, to testes.
Agriculture: Industries Middelharnis, Pernis and Zwartewaal are the centres of this branch of fishery, which yields halibut, cod, ling and haddock.
The wonderfully productive halibut fisheries of Hecate Strait, which separates these islands from the mainland and its adjacent islands, have attracted the attention of fishing companies, and great quantities of this fish are taken regularly and shipped across the continent in cold storage.
The city is especially important as a salmon fishing and packing centre (cod, halibut and smaller fish also being abundant); it has also an extensive lumber trade, important lumber manufactories, pressed brick and terra-cotta factories, and dairy interests.
Maine markets more clams than any other state in the Union, and the catches of cod, hake, haddock, smelt, mackerel, swordfish, shad, pollock, cusk, salmon, alewives, eels and halibut are of importance.
Some catfish, shad, smelt, halibut, herring, perch, sturgeon, flounders, oysters, clams, crabs and crawfish are also obtained from Oregon waters.
Though fruit-trees will not bear there is an abundance of edible berries; the rivers and lakes abound with trout, perch, pike and other fish, and in the lower waters with salmon; and the cod, herring, halibut and Greenland shark in the northern seas attract numerous Norwegian and Russian fishermen.
The pursuit of cod, mackerel, herring and halibut fills up, with a winter coasting trade, the round of the year.
Mackerel was a relatively unimportant catch until about 1821, and since then has been an important but unstable return; halibut fishing has been vigorously pursued since about 1836 and herring since about 1856.
The principal fisheries are those on the Atlantic coast, carried on by the inhabitants of Nova Scotia, New Brunswick, Prince Edward Island, and the eastern section of Quebec. Cod, herring, mackerel and lobsters are the fish chiefly caught, though halibut, salmon, anchovies and so-called sardines are also exported.
In British Columbian waters the main catch is of salmon, in addition to which are halibut, oolachan, herring, sturgeon, cod and shellfish.
Though cod is much the most important fish (in 1905 fresh cod were valued at $991,679, and salted cod at $696,928), haddock (fresh, $1,051,910; salted, $17,194), mackerel (value in 1905, including horse mackerel, $970,876), herring (fresh, $266,699; salted, $114,997), pollock ($267,927), hake ($258,438), halibut ($218,232), and many other varieties are taken in great quantities.