{"refrec":{"BRefID":359523,"RR":"<b>Jones, E.M.; Henley, S.F.; van Leeuwe, M.A.; Stefels, J.; Meredith, M.P.; Fenton, M.; Venables, H.J.</b> (2023). Carbon and nutrient cycling in Antarctic landfast sea ice from winter to summer. <i>Limnol. Oceanogr. 68(1)</i>: 208-231. <a href=\"https://dx.doi.org/10.1002/lno.12260\" target=\"_blank\">https://dx.doi.org/10.1002/lno.12260</a>","BEntID":357238,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":0,"RefStringPartII":". <i>Limnol. Oceanogr. 68(1)</i>: 208-231. <a href=\"https://dx.doi.org/10.1002/lno.12260\" target=\"_blank\">https://dx.doi.org/10.1002/lno.12260</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Jones, E.M.; Henley, S.F.; van Leeuwe, M.A.; Stefels, J.; Meredith, M.P.; Fenton, M.; Venables, H.J.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Jones, E.M. <i>et al.</i>","Englishabstract":"<p>    Seasonal cycling in carbon, alkalinity, and nutrients in landfast sea ice    in Hangar Cove, Adelaide Island, West Antarctic Peninsula, were    investigated during winter, spring, and summer 2014–2015. Temporal dynamics    were driven by changes in the ice-sea physicochemical conditions, ice-algal    community composition, and organic matter production. Winter sea ice was    enriched with dissolved inorganic carbon (DIC) and inorganic nutrients from    organic matter remineralization. Variations in alkalinity (Alk) and DIC    indicated that abiotic calcium carbonate (ikaite) precipitation had taken    place. Relative to other nutrients, low phosphate (PO<sub>4</sub>)    concentrations potentially resulted from co-precipitation with ikaite.    Seawater flooding and meltwater induced variability in the physical and    biogeochemical properties in the upper ice in spring where nutrient    resupply supported haptophyte productivity and increased particulateorganic carbon (POC) in the interstitial layer. Rapid nitrate (NO    <sub>3</sub>) and DIC (< 165 <em>μ</em>mol kg<sup>−1</sup>) uptake    occurred alongside substantial build-up of algal biomass (746 <em>μ</em>gchlorophyll <em>a</em> L<sup>−1</sup>) and POC (6191 <em>μ</em>mol L    <sup>−1</sup>) during summer. Silicic acid drawdown followed NO<sub>3</sub>    depletion by approximately 1 month with a shift to diatom-dominated    communities. Accumulation of PO<sub>4</sub> in the lower ice layers in    summer likely resulted from PO<sub>4</sub> released during ikaite    dissolution in the presence of biofilms. Increased Alk : DIC ratios in the    lower ice and under-ice water suggested that ikaite dissolution bufferedagainst meltwater dilution and enhanced the potential for atmospheric CO    <sub>2</sub> uptake. This study revealed strong seasonality in carbon and    nutrient cycling in landfast sea ice and showed the importance of sea ice    in biogeochemical cycling in seasonally ice-covered waters around    Antarctica.</p>","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Carbon and nutrient cycling in Antarctic landfast sea ice from winter to summer","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-09 01:32:28.349447","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2023,"MonPub":null,"DateUpdate":"2023-01-17","DateCreate":"2022-11-25","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000882268400001","VABBcode":null,"OpenAcc":1,"DOI":"10.1002/lno.12260"},"refs":null,"anarec":{"AnaID":359523,"PubliDate":2023,"Pagination":"208-231","XtraPublOfAnaID":null,"ISBN":null,"Volume":"68","Issue":"1","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43511,"SerRR":"Limnology and Oceanography. 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