{"refrec":{"BRefID":328085,"RR":"<b>Traboni, C.; Calbet, A.; Saiz, E.</b> (2020). Effects of prey trophic mode on the gross-growth efficiency of marine copepods: the case of mixoplankton. <i>NPG Scientific Reports 10(1)</i>: 12259. <a href=\"https://dx.doi.org/10.1038/s41598-020-69174-w\" target=\"_blank\">https://dx.doi.org/10.1038/s41598-020-69174-w</a>","BEntID":321562,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>NPG Scientific Reports 10(1)</i>: 12259. <a href=\"https://dx.doi.org/10.1038/s41598-020-69174-w\" target=\"_blank\">https://dx.doi.org/10.1038/s41598-020-69174-w</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Traboni, C.; Calbet, A.; Saiz, E.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Traboni, C.; Calbet, A.; Saiz, E.","Englishabstract":"Copepod reproductive success largely depends on food quality, which also reflects the prey trophic mode. As such, modelling simulations postulate a trophic enhancement to higher trophic levels when mixotrophy is accounted in planktonic trophodynamics. Here, we tested whether photo-phagotrophic protists (mixoplankton) could enhance copepod gross-growth efficiency by nutrient upgrading mechanisms compared to obligate autotrophs and heterotrophs. To validate the hypothesis, we compared physiological rates of the copepod <i>Paracartia grani</i> under the three functional nutrition types. Ingestion and egg production rates varied depending on prey size and species, regardless of the diet. The gross-growth efficiency was variable and not significantly different across nutritional treatments, ranging from 3 to 25% in the mixoplanktonic diet compared to autotrophic (11–36%) and heterotrophic (8–38%) nutrition. Egg hatching and egestion rates were generally unaffected by diet. Overall, <i>P. grani</i> physiological rates did not differ under the tested nutrition types due to the large species-specific variation within trophic mode. However, when we focused on a single species, <i>Karlodinium veneficum</i>, tested as prey under contrasting trophic modes, the actively feeding dinoflagellate boosted the egestion rate and decreased the copepod gross-growth efficiency compared to the autotrophic ones, suggesting possible involvement of toxins in modulating trophodynamics other than stoichiometric constraints.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Effects of prey trophic mode on the gross-growth efficiency of marine copepods: the case of mixoplankton","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-04-18 01:32:18.786985","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2020,"MonPub":null,"DateUpdate":"2021-06-02","DateCreate":"2020-08-18","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000556698500011","VABBcode":null,"OpenAcc":1,"DOI":"10.1038/s41598-020-69174-w"},"refs":null,"anarec":{"AnaID":328085,"PubliDate":2020,"Pagination":"12259","XtraPublOfAnaID":null,"ISBN":null,"Volume":"10","Issue":"1","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":208093,"SerRR":"Scientific Reports (Nature Publishing Group). 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