caa a22 4500 46576360X CHVBK 20180323111906.0 cr unu---uuuuu 170327e19900201xx s 000 0 eng 10.1007/BF00238421 doi (NATIONALLICENCE)springer-10.1007/BF00238421 Irwin B. Department of Fisheries and Oceans, Biological Sciences Branch, Bedford Institute of Oceanography, B2Y 4A2, Dartmouth, Nova Scotia, Canada aut Primary production of ice algae on a seasonally-ice-covered, continental shelf [Elektronische Daten] [B. Irwin] Summary: Ice algae samples were collected from the winter pack ice off Labrador during March 1984. The population was dominated by centric diatoms. Chlorophyll concentrations ranged from 40 to 190 mg m−3, and particulate organic carbon from 2 to 10 g m−3. Assimilation numbers for the ice algae ranged from 1.4 to 2.8 mg C (mg chl)−1 h−1 with a mean of 2.3, and were not significantly different from the assimilation numbers of the pelagic community beneath the ice. The ice algae were not photoinhibited at light intensities approaching surface light intensities. It is postulated that the dynamic nature of the ice field permits near-surface light intensities to reach the ice algae community at irregular intervals thereby suppressing photoinhibition. Springer-Verlag, 1990 Polar Biology Springer-Verlag 10/4(1990-02-01), 247-254 0722-4060 10:4<247 1990 10 300 https://doi.org/10.1007/BF00238421 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00238421 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Irwin B. Department of Fisheries and Oceans, Biological Sciences Branch, Bedford Institute of Oceanography, B2Y 4A2, Dartmouth, Nova Scotia, Canada aut NATIONALLICENCE 773 0- Polar Biology Springer-Verlag 10/4(1990-02-01), 247-254 0722-4060 10:4<247 1990 10 300 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer