Some quantitative data on light penetration in sediments
Gomoiu, M.-T. (1967). Some quantitative data on light penetration in sediments. Helgol. Wiss. Meeresunters. 15(1-4): 120-127. https://dx.doi.org/10.1007/BF01618614
Kinne, O.; Aurich, H. (Ed.) (1967). Vorträge und Diskussionen. Erstes Europäisches Symposion über Meeresbiologie = Papers and discussions. First European Symposium on Marine Biology = Rapports et discussions. Premier symposium européen sur biologie marine. Helgoländer Wissenschaftliche Meeresuntersuchungen, 15(1-4). Biologische Anstalt Helgoland: Hamburg. 669 pp., more
1. Light penetration in sediments is a function of sediment granulometry; it decreases with the decrease in grain size.2. Light quantities entering the sediments are a function of substrate depth: At 1 mm depth, light penetration ranges between 80 (at medium quartzy sands from Hel) and 2 (at very fine sands from the Black Sea) percent of the light quantities found at the substrate surface; at 2 mm depth light penetration varies between 52 percent and total darkness (when muds replace sand); at 3 mm depth it varies between 0 and 23 per cent; at 4 mm depth, in most samples the aphotic zone was reached; however, in some sediments (quartzy medium or coarse-medium sands) values up to 9 per cent may occur; at 5 mm depth out of 46 analysed samples only 5 contained up to 5 per cent light; at 6 mm depth the lowest readings of down to 3 per cent were obtained.3. On the basis of these data, the photic zone in sandy sediments is very thin.
All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy
