Archive image from page 76 of Culture methods for invertebrate animals;. Culture methods for invertebrate animals; culturemethodsfo00galt Year: 1959 ( Collecting and Handling 4i Fig. 38.—The apron net. merce are everywhere available. Also, for getting small animals out of their places of hiding, there are shovels and sifters, rakes and hoes, axes and chisels, etc. Some commercial tools especially devised for collecting purposes have been illustrated in the preceding article. In the following pages we will describe only a few of the most useful and most generally applicable devices for coll
Archive image from page 76 of Culture methods for invertebrate animals;. Culture methods for invertebrate animals; culturemethodsfo00galt Year: 1959 ( Collecting and Handling 4i Fig. 38.—The apron net. merce are everywhere available. Also, for getting small animals out of their places of hiding, there are shovels and sifters, rakes and hoes, axes and chisels, etc. Some commercial tools especially devised for collecting purposes have been illustrated in the preceding article. In the following pages we will describe only a few of the most useful and most generally applicable devices for collecting and handling in- vertebrates. Others will be found in the articles which follow, where their special uses will be indicated. Many others may be found by our readers if they will consult Pe- terson's Manual of Entomolog- ical Equipment and Methods, which, although prepared pri- marily for work on insects, contains much that is equally applicable to the handling of other invertebrates. Aquatic animals. A dip net (Fig. 1) is perhaps the most widely used tool for collecting in freshwater. It must be stout enough to stand hard usage and its mesh must be fine enough to retain the ani- mals desired. The best single tool for collecting the larger aquatic invertebrate animals is the apron net (Fig. 38). It is so shaped at the front that it may be pushed through beds of weeds or under bottom trash. Its wide- meshed cover allows the animals to enter while keeping out the weeds and coarser trash. A final push through the water lands the catch at the rear where it is easily accessible for picking over by hand. The smaller animals that are mixed with the trash in the net may best be found by dumping its contents into a white pan of water where they will at once reveal their presence by their activity. They may be taken from the water most easily and without injury on a lifter made from a strip of wire cloth by infolding its edges. An apron net is equally satisfactory for scraping up
Size: 1975px × 1013px
Photo credit: © Bookive / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: 1950, 1959, archive, book, bookauthor, bookdecade, bookpublisher, booksubject, bookyear, drawing, galtsoff_paul_simon_1887_, historical, history, illustration, image, invertebrates_collection_and_preservation, invertebrates_cultures_and_culture_media, page, picture, print, reference, update_forthcoming, vintage
