{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,19]],"date-time":"2025-11-19T12:05:13Z","timestamp":1763553913955,"version":"3.45.0"},"reference-count":59,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2025,11,18]],"date-time":"2025-11-18T00:00:00Z","timestamp":1763424000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Oceans"],"abstract":"<jats:p>The present work aims to verify the growth (estimated with optical density) of the dry biomass after proper flocculation and weighing, and removal of phosphorus by the microalga Chaetoceros muelleri (Mediophyceae), at six different salinities. Cultivations were carried out with constant volume, for a period of eight days, consisting of six treatments with three repetitions each, at different salinities (30, 25, 20, 15, 10, and 5) (seawater = 34). We observed that the best results were obtained when the microalgae were grown at salinity 30, that is, we observed better performances for this microalga at higher salinities. At this same salinity, the microalgae presented the best results of phosphorus removal (46.08 \u00b1 0.67%). Regarding biomass recovery by microalgae, after drying the flocculate, the best result was obtained at salinity 25, with a final value of 3.47 \u00b1 0.04 g dry mass L\u22121. Therefore C. muelleri is a promising solution for increasing demand by the blue economy with the associated circular economy, promoting rehabilitation of ecological sites with economic output. Thus, this work aims to evaluate the effect of salinity on phosphorus removal using C. muelleri.<\/jats:p>","DOI":"10.3390\/oceans6040079","type":"journal-article","created":{"date-parts":[[2025,11,19]],"date-time":"2025-11-19T11:17:27Z","timestamp":1763551047000},"page":"79","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Role of Salinity on Phosphorous Removal by Chaetoceros muelleri"],"prefix":"10.3390","volume":"6","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9968-0610","authenticated-orcid":false,"given":"Glacio S.","family":"Ara\u00fajo","sequence":"first","affiliation":[{"name":"Department of Fisheries Engineering, Federal University of Cear\u00e1 (UFC), Av. Mister Hull, s\/n, Campus do Pici, Bloco 825, Fortaleza 60440-900, CE, Brazil"}]},{"given":"Clarice S.","family":"Santigado","sequence":"additional","affiliation":[{"name":"Department of Fisheries Engineering, Federal University of Cear\u00e1 (UFC), Av. Mister Hull, s\/n, Campus do Pici, Bloco 825, Fortaleza 60440-900, CE, Brazil"}]},{"given":"Lucas C. B.","family":"Silva","sequence":"additional","affiliation":[{"name":"Department of Fisheries Engineering, Federal University of Cear\u00e1 (UFC), Av. Mister Hull, s\/n, Campus do Pici, Bloco 825, Fortaleza 60440-900, CE, Brazil"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5244-221X","authenticated-orcid":false,"given":"Jo\u00e3o","family":"Cotas","sequence":"additional","affiliation":[{"name":"Centre for Functional Ecology (CFE), Marine Resources, Conservation and Technology, Marine Algae Lab, Associate Laboratory TERRA, Department of Life Sciences, University of Coimbra, 3000-456 Coimbra, Portugal"},{"name":"Department of Life Sciences, University of Coimbra, 3000-456 Coimbra, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6819-0619","authenticated-orcid":false,"given":"Leonel","family":"Pereira","sequence":"additional","affiliation":[{"name":"Centre for Functional Ecology (CFE), Marine Resources, Conservation and Technology, Marine Algae Lab, Associate Laboratory TERRA, Department of Life Sciences, University of Coimbra, 3000-456 Coimbra, Portugal"},{"name":"Department of Life Sciences, University of Coimbra, 3000-456 Coimbra, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2025,11,18]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"54","DOI":"10.1016\/j.cosust.2018.12.001","article-title":"Rethinking Marine Resource Governance for the United Nations Sustainable Development Goals","volume":"34","author":"Stead","year":"2018","journal-title":"Curr. 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