{"refrec":{"BRefID":356370,"RR":"<b>Sahota, R.; Boyen, J.; Semmouri, I.; Bodé, S.; De Troch, M.</b> (2022). An inter-order comparison of copepod fatty acid composition and biosynthesis in response to a long-chain PUFA deficient diet along a temperature gradient. <i>Mar. Biol. (Berl.) 169</i>: 133. <a href=\"https://dx.doi.org/10.1007/s00227-022-04121-z\" target=\"_blank\">https://dx.doi.org/10.1007/s00227-022-04121-z</a>","BEntID":354084,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":0,"RefStringPartII":". <i>Mar. Biol. (Berl.) 169</i>: 133. <a href=\"https://dx.doi.org/10.1007/s00227-022-04121-z\" target=\"_blank\">https://dx.doi.org/10.1007/s00227-022-04121-z</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Sahota, R.; Boyen, J.; Semmouri, I.; Bodé, S.; De Troch, M.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Sahota, R. <i>et al.</i>","Englishabstract":"Copepods serve as a major link in marine food webs, bridging the energy transfer from primary producers to higher trophic levels. Oceanic warming is linked to reduced concentrations of essential fatty acids (FA) in phytoplankton, namely eicosapentaenoic acid (EPA, 20:5ω3) and docosahexaenoic acid (DHA, 22:6ω3), and it remains largely unknown if copepods have the capacity to endure. The calanoid <i>Temora longicornis</i> and the harpacticoid <i>Platychelipus littoralis</i> were chosen to analyse their FA and biosynthesis activity in response to a long-chain polyunsaturated FA (LC-PUFA) deficient diet (<i>Dunaliella tertiolecta</i>) along a temperature gradient. Copepods were fed <i>D. tertiolecta</i> labelled with the stable isotope carbon-13 (<sup>13</sup>C) to quantify carbon assimilation into their total FA and de novo EPA and DHA biosynthesis after 6 days incubated at 11, 14, 17, 20 and 23 °C. The calanoid had increased mortality with warming, whereas the harpacticoid exhibited high survival across the thermal gradient. After the incubation, <i>P. littoralis</i> assimilated minimal amounts of dietary carbon into its total FA in comparison to <i>T. longicornis</i>. <i>T. longicornis</i> depleted their field EPA and DHA stores more rapidly, whereas <i>P. littoralis</i> maintained its relative storage of EPA and DHA and absolute concentrations of DHA. <i>T. longicornis</i> displayed higher fractions of de novo EPA and DHA biosynthesis than <i>P. littoralis</i> at all temperatures, with the exception of DHA at 23 °C. Within our experimental incubation period both species were unable to meaningfully upgrade the LC-PUFA deficient algae to biosynthesize de novo EPA and DHA as a relevant source for higher trophic levels.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"An inter-order comparison of copepod fatty acid composition and biosynthesis in response to a long-chain PUFA deficient diet along a temperature gradient","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-04-20 01:32:53.079064","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Biosynthesis · Calanoid copepod · Carbon assimilation · Climate change · Fatty acids · Harpacticoid copepod","OtherDescriptors":null,"Notes":null,"AnaPub":2022,"MonPub":null,"DateUpdate":"2023-04-28","DateCreate":"2022-10-13","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000867650400002","VABBcode":null,"OpenAcc":0,"DOI":"10.1007/s00227-022-04121-z"},"refs":null,"anarec":{"AnaID":356370,"PubliDate":2022,"Pagination":"133","XtraPublOfAnaID":null,"ISBN":null,"Volume":"169","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43352,"SerRR":"Marine Biology: International Journal on Life in Oceans and Coastal Waters. 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