{"refrec":{"BRefID":75047,"RR":"<b>Menéndez, M.</b> (2005). Effect of nutrient pulses on photosynthesis of <i>Chaetomorpha linum</i> from a shallow Mediterranean coastal lagoon. <i>Aquat. Bot. 82(3)</i>: 181-192. <a href=\"https://dx.doi.org/10.1016/j.aquabot.2005.04.004\" target=\"_blank\">https://dx.doi.org/10.1016/j.aquabot.2005.04.004</a>","BEntID":70724,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":0,"RefStringPartII":". <i>Aquat. Bot. 82(3)</i>: 181-192. <a href=\"https://dx.doi.org/10.1016/j.aquabot.2005.04.004\" target=\"_blank\">https://dx.doi.org/10.1016/j.aquabot.2005.04.004</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Menéndez, M.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Menéndez, M.","Englishabstract":"The influence of nitrogen and phosphorus pulses on <i>Chaetomorpha linum</i> (Muller) Kutzing growth and photosynthesis was studied in laboratory experiments. Photosynthesis and growth of <i>C. linum</i> from Tancada lagoon seems limited by both nitrogen and phosphorus, as indicated by the high rate (4.7–11.6 mg O<sub>2</sub> g<sup>−1</sup> dry weight h<sup>−1</sup>) of light-saturated photosynthesis (<i>P</i><sub>m</sub>) and growth rates observed under nitrogen plus phosphorus enrichment in relation to enrichment by nitrogen alone (2.9–7.6 mg O<sub>2</sub> g<sup>−1</sup> dry weight h<sup>−1</sup>). Significant increase in nitrogen and phosphorus content as percentage of dry weight was observed in <i>C. linum</i> fertilized with a single nutrient or with nitrogen plus phosphorus. In Tancada lagoon, when availability of nitrogen to primary producers is by pulses, an increase of nitrate concentration in the water column (from 6 to 100 μM) has a greater effect on growth of <i>C. linum</i> (growth rate: 0.13 day<sup>−1</sup>) than an increase in ammonium concentration (from 20 to 100 μM and growth rate: 0.11 day<sup>−1</sup>). For a given thallus nitrogen content (0.6–1.4% N), both <i>P</i><sub>m</sub> and the photosynthetic efficiency (<i>α</i>) normalized to dry weight were correlated (<i>r</i><sup>2</sup> = 0.73, <i>p</i> < 0.005) indicating that variations in electron transport were coupled to variations in C-fixation capacity. Optimizing both <i>α</i> and <i>P</i><sub>m</sub> may be a general characteristic of thin-structured opportunistic algae in more variable estuarine environments.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Effect of nutrient pulses on photosynthesis of <i>Chaetomorpha linum</i> from a shallow Mediterranean coastal lagoon","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-05-16 01:31:57.049174","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Chaetomorpha linum; nitrogen; phosphorus; photosynthesis; growth;coastal lagoon","OtherDescriptors":null,"Notes":null,"AnaPub":2005,"MonPub":null,"DateUpdate":"2020-10-07","DateCreate":"2005-08-01","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000230570300003","VABBcode":null,"OpenAcc":0,"DOI":"10.1016/j.aquabot.2005.04.004"},"refs":null,"anarec":{"AnaID":75047,"PubliDate":2005,"Pagination":"181-192","XtraPublOfAnaID":null,"ISBN":null,"Volume":"82","Issue":"3","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":42195,"SerRR":"Aquatic Botany. 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