{"refrec":{"BRefID":281241,"RR":"<b>Lerner, A.; Browman, H.I.</b> (2016). The copepod <i>Calanus</i> spp. (Calanidae) is repelled by polarized light. <i>NPG Scientific Reports 6(35891)</i>: 7 pp. <a href=\"http://dx.doi.org/10.1038/srep35891\" target=\"_blank\">http://dx.doi.org/10.1038/srep35891</a>","BEntID":273260,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>NPG Scientific Reports 6(35891)</i>: 7 pp. <a href=\"http://dx.doi.org/10.1038/srep35891\" target=\"_blank\">http://dx.doi.org/10.1038/srep35891</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Lerner, A.; Browman, H.I.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Lerner, A.; Browman, H.I.","Englishabstract":"Both attraction and repulsion from linearly polarized light have been observed in zooplankton. A dichotomous choice experiment, consisting of plankton light traps deployed in natural waters at a depth of 30 m that projected either polarized or unpolarized light of the same intensity, was used to test the hypothesis that the North Atlantic copepod, Calanus spp., is linearly polarotactic. In addition, the transparency of these copepods, as they might be seen by polarization insensitive vs. sensitive visual systems, was measured. Calanus spp. exhibited negative polarotaxis with a preference ratio of 1.9:1. Their transparency decreased from 80% to 20% to 30% in the unpolarized, partially polarized, and electric (e-) vector orientation domains respectively - that is, these copepods would appear opaque and conspicuous to a polarization-sensitive viewer looking at them under conditions rich in polarized light. Since the only difference between the two plankton traps was the polarization cue, we conclude that Calanus spp. are polarization sensitive and exhibit negative polarotaxis at low light intensities (albeit well within the sensitivity range reported for copepods). We hypothesize that Calanus spp. can use polarization vision to reduce their risk of predation by polarization-sensitive predators and suggest that this be tested in future experiments.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"The copepod <i>Calanus</i> spp. (Calanidae) is repelled by polarized light","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-05-06 01:32:32.548569","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2016,"MonPub":null,"DateUpdate":"2018-02-13","DateCreate":"2016-10-21","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000386183800001","VABBcode":null,"OpenAcc":1,"DOI":"10.1038/srep35891"},"refs":null,"anarec":{"AnaID":281241,"PubliDate":2016,"Pagination":"7 pp","XtraPublOfAnaID":null,"ISBN":null,"Volume":"6","Issue":"35891","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":208093,"SerRR":"Scientific Reports (Nature Publishing Group). 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