Archive image from page 332 of The Danish Ingolf-expedition (1899-1953). The Danish Ingolf-expedition danishingolfex5bpt5a8daniuoft Year: 1899-1953 HYDROIDA II i8i quently met witli in Davis vStrait, which is thus proved to belong, at any rate in part, to the boundary waters of the boreal region. Yet the species penetrate only quite exceptionally into the west Green- land fjord area, which must be regarded as purely arctic, partly on account of the intermixture of melting water from the glaciers, and partly owing to the north-going branch of the East Greenland Polar Current, which turns roun
Archive image from page 332 of The Danish Ingolf-expedition (1899-1953). The Danish Ingolf-expedition danishingolfex5bpt5a8daniuoft Year: 1899-1953 HYDROIDA II i8i quently met witli in Davis vStrait, which is thus proved to belong, at any rate in part, to the boundary waters of the boreal region. Yet the species penetrate only quite exceptionally into the west Green- land fjord area, which must be regarded as purely arctic, partly on account of the intermixture of melting water from the glaciers, and partly owing to the north-going branch of the East Greenland Polar Current, which turns round Cape Farewell and runs some distance up the coast Here we still find Dyiiaiiitna pnmila sporadicall\', probably because the investigations were carried out at a time when the summer heat had brought the surface temperature up a little, enabling the species just to exist for a brief while, and under difficulties. Not until we reach the waters between Holstensborg 20Q rn. boom. looom, 2000m. Fig. XCI. The occurrence of Halecium miiricatum, and Sertiihirella tricuspidata, two arctic species which penetrate into the southern parts of the boreal region. (The red hue approximately indicates the hnut of the cold area). and Egedesminde do the boreal elements in the coast fauna become more pronounced. In Danmark Strait, between Greenland and Iceland, we see that the finds group themselves closer as soon as we pass south of the o° isotherm, where the depth conditions are more favourable. Despite their positive bottom temperature, the shallower North-Icelandic waters seem to take a more arctic character, though this may, as we shall presently see, perhaps be equally well explained as due to insufficient investi- gation. Between Iceland and the Faroe Islands, the species move up to the verge of the cold area, but do not pass it. And the whole of that part of the Norwegian coastal banks which falls witliin the Hmits of the chart presents an entirely boreal character. - Turning now to
Size: 1840px × 1087px
Photo credit: © Bookive / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: 1890, 1899-1953, archive, arctic_regions, book, bookauthor, bookdecade, bookpublisher, booksubject, bookyear, copenhagen_h_hagerup, danish_ingolf_expedition_1895_1896_, drawing, historical, history, illustration, image, k_benhavns_universitet_zoologisk_museum, marine_animals_arctic_regions, page, picture, print, reference, scientific_expeditions, vintage
