{"refrec":{"BRefID":215449,"RR":"<b>Gomoiu, M.-T.</b> (1967). Some quantitative data on light penetration in sediments. <i>Helgol. Wiss. Meeresunters. 15(1-4)</i>: 120-127. <a href=\"https://dx.doi.org/10.1007/BF01618614\" target=\"_blank\">https://dx.doi.org/10.1007/BF01618614</a>","BEntID":330037,"PublicFlag":1,"CheckedFlag":0,"wosflag":0,"vabbflag":0,"RefStringPartII":". <i>Helgol. Wiss. Meeresunters. 15(1-4)</i>: 120-127. <a href=\"https://dx.doi.org/10.1007/BF01618614\" target=\"_blank\">https://dx.doi.org/10.1007/BF01618614</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Gomoiu, M.-T.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Gomoiu, M.-T.","Englishabstract":"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.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Some quantitative data on light penetration in sediments","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-04-18 01:31:32.392246","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":1967,"MonPub":null,"DateUpdate":"2021-02-23","DateCreate":"2012-05-15","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:A19679802400017","VABBcode":null,"OpenAcc":0,"DOI":"10.1007/BF01618614"},"refs":null,"anarec":{"AnaID":215449,"PubliDate":1967,"Pagination":"120-127","XtraPublOfAnaID":null,"ISBN":null,"Volume":"15","Issue":"1-4","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":64660,"SerRR":"Helgoländer Wissenschaftliche Meeresuntersuchungen. 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