. The animal creation: a popular introduction to zoology. Zoology. 336 ABDOMINAL SOFT-FINNED FISHES. In the months of April and May herrings begin to appear off the Shetland Islands, and towards the end of June, or in July, they arrive in incalculable numbers, forming vast and dense shoals, which sometimes extend over the surface of the sea for several leagues, and are hundreds of feet in thickness. The Herring-iishcry is of great. Fig. 267.—HKRRrs-G, importance; it occupies every year enthe iieets, and formerly was carried on with still greater activity. About the middle of the 17th century,
. The animal creation: a popular introduction to zoology. Zoology. 336 ABDOMINAL SOFT-FINNED FISHES. In the months of April and May herrings begin to appear off the Shetland Islands, and towards the end of June, or in July, they arrive in incalculable numbers, forming vast and dense shoals, which sometimes extend over the surface of the sea for several leagues, and are hundreds of feet in thickness. The Herring-iishcry is of great. Fig. 267.—HKRRrs-G, importance; it occupies every year enthe iieets, and formerly was carried on with still greater activity. About the middle of the 17th century, the Dutch employed not less than 2,000 vessels; and it is estimated that 800,000 persons in Holland and West Friesland derived their living from this branch of industry alone. Herrings are generally caught by means of nets, five or six hundred fathoms in length, the lower edge of which is loaded with lead, while the upper edge is made to tioat upon the surface, by means of buoys of cork. The meshes are just large enough to receive the head of a herring as far as the gills, but not to allow the pectoral fins to pass. Tlie fish, in endeavouring to overcome the obstacle that this great vertical net opiDoses to its passage, is thus meshed, and not being able to advance or to recede, owing to the gills and the fins, he remains a prisoner until the fishermen draw the net on board. This is termed a gill-^iet. The number of herrings taken in this way is sometunes so great that the net bursts imder their weight. Generally, this fishery is carried on at some chstance from the shore, and the herrings are salted on board. The Sardine (Clupea Sardina) is a small species of Herring, celebrated for the delicacy of its flesh. It inhabits the Baltic, the Atlantic, and the Mediterranean. During the winter, it keeps in the depths of the sea, but about the month of June, it draws near the shore in immense shoals. As many as forty or even fifty thousand. Please note that these images are extracte
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Keywords: ., bookauthorjo, bookcentury1800, bookdecade1860, booksubjectzoology
