Archive image from page 615 of The depths of the ocean. The depths of the ocean : a general account of the modern science of oceanography based largely on the scientific researches of the Norwegian steamer Michael Sars in the North Atlantic depthsofoceangen00murr Year: 1912 FiG. 417. Augaptilusfiligerus, Claus. (After Zacharias, from Steuer.) Fig. 418. / iichata norvegica, Boeck. (From Sars.) larges its surface, while in cold water the horns are much more slender, the lower specific gravity caused by the higher temperature rendering floating appliances necessary for both animals and plants
Archive image from page 615 of The depths of the ocean. The depths of the ocean : a general account of the modern science of oceanography based largely on the scientific researches of the Norwegian steamer Michael Sars in the North Atlantic depthsofoceangen00murr Year: 1912 FiG. 417. Augaptilusfiligerus, Claus. (After Zacharias, from Steuer.) Fig. 418. / iichata norvegica, Boeck. (From Sars.) larges its surface, while in cold water the horns are much more slender, the lower specific gravity caused by the higher temperature rendering floating appliances necessary for both animals and plants (see also Chapter X.). The Copepoda occur in all depths, and some authors have attempted to define certain bathymetrical regions, each with its own characteristic forms, but the observations available are insufficient to enable us to form definite ideas on the subject; much new light will' doubtless be thrown on the matter when the reports of the ' Valdivia' and ' Michael Sars ' Expeditions come to be published. The discussion as to whether the surface forms of cold regions are found in the deep water of warm regions is interesting. The ' Valdivia ' Expedition captured EucJiirella venusta and Calanus finmarchicus in a haul with a closing net between 1600 and 1850 metres
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Keywords: 1900, 1910, 1912, _michael_sars_north_atlantic_deep_sea_expedition_191, appell_f_jakob_johan_adolf_1857_, archive, book, bookauthor, bookcentury, bookdecade, bookpublisher, booksubject, bookyear, drawing, gran_h_h_haakon_hasberg_1870_, helland_hansen_bj_rn_1877_, historical, history, illustration, image, london_macmillan, murray_john_sir_1841_1914, north_atlantic_ocean, oceanography, page, picture, print, reference, vintage
