. Culture methods for invertebrate animals;. Invertebrates -- Cultures and culture media; Invertebrates -- Collection and preservation. General Methods of Collecting, Maintaining, and Rearing Marine Invertebrates in the Laboratory j Paul S. Galtsoff, U. S. Bureau of Fisheries COLLECTING THE selection of the equipment for collecting marine animals is gov- erned by various considerations, of which the character of the bot- tom, depth of water, number of specimens the investigator desires to obtain, the purpose of collecting, and the animal which he seeks, are of Gin. Fig. i.—The dip net. paramou
. Culture methods for invertebrate animals;. Invertebrates -- Cultures and culture media; Invertebrates -- Collection and preservation. General Methods of Collecting, Maintaining, and Rearing Marine Invertebrates in the Laboratory j Paul S. Galtsoff, U. S. Bureau of Fisheries COLLECTING THE selection of the equipment for collecting marine animals is gov- erned by various considerations, of which the character of the bot- tom, depth of water, number of specimens the investigator desires to obtain, the purpose of collecting, and the animal which he seeks, are of Gin. Fig. i.—The dip net. paramount importance. The following account describes the instru- ments which may be needed by an individual collector who desires to bring live material to his laboratory. The description of the method of collecting large numbers of specimens for museums and supply houses, as well as the account of the various oceanographic instruments used in a quantitative study of ocean life are beyond the scope of this book. The reader interested in this matter is referred to such books as: Murray and Hjort (1912); Johnstone (1908); Bulletin No. 85, Oceanography, of the National Research Council (1932); numerous publications of the Conseil Permanent pour I'Exploration de la Mer; Wissenschajtliche Meeresuntersuchungen (abt. Helgoland and abt. Kiel), and to the de- scriptions of equipment given in the reports of various oceanographic expeditions. The dip net. The dip net (Fig. 1) is the handiest and most indis- pensable piece of equipment that can be used for many purposes and under a great variety of conditions. It consists of a conical net bag at- tached to a stout ring made of galvanized iron or preferably of brass and. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Galtsoff, Paul Simon, 1887-. update forthcoming
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