{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,26]],"date-time":"2025-05-26T09:26:08Z","timestamp":1748251568822,"version":"3.40.5"},"reference-count":39,"publisher":"Walter de Gruyter GmbH","issue":"6","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2022,12,16]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>Macroalgae play a vital role in marine ecosystems, but human effects are threatening the composition and structure of algal communities. In the present investigation, the spatial and temporal variations of species composition, functional groups and percentage macroalgal cover were studied in relation to seasonal fluctuations of some physicochemical parameters, to determine the ecological status of macroalgae in coastal waters along the coast of the northwestern part of the Red Sea, from November 2020 to October 2021. Fifty-five species of macroalgae were collected and identified from the sites studied. Five functional groups of macroalgae were recognized. Among these were two turf-forming species, 34 species of upright fleshy algae, and three crustose algae. There was a large variation in the cover, as well as in the species richness and assemblage structure of\u00a0the macroalgae in different sites and seasons. Seasonal changes, determined by environmental conditions, led to small changes in macroalgal cover at different sites, with the growth of some brown macroalgae suppressed by high sea temperatures, whereas some green and red macroalgae, increased in response to increasing temperature and salinity.<\/jats:p>","DOI":"10.1515\/bot-2022-0046","type":"journal-article","created":{"date-parts":[[2022,10,29]],"date-time":"2022-10-29T15:19:16Z","timestamp":1667056756000},"page":"405-418","source":"Crossref","is-referenced-by-count":4,"title":["Spatial and temporal variations of macroalgal vegetation in the north-western Red Sea"],"prefix":"10.1515","volume":"65","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8531-4719","authenticated-orcid":false,"given":"Sarah H.","family":"Rashedy","sequence":"first","affiliation":[{"name":"National Institute of Oceanography and Fisheries (NIOF) , Cairo 11516 , Egypt"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0724-7001","authenticated-orcid":false,"given":"Samia M.","family":"El-Mahdy","sequence":"additional","affiliation":[{"name":"National Institute of Oceanography and Fisheries (NIOF) , Cairo 11516 , Egypt"}]},{"given":"Islam M.","family":"El-Manawy","sequence":"additional","affiliation":[{"name":"Faculty of Science, Botany Department , Suez Canal University , Ismailia , Egypt"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6819-0619","authenticated-orcid":false,"given":"Leonel","family":"Pereira","sequence":"additional","affiliation":[{"name":"Department of Life Sciences , University of Coimbra, MARE-Marine and Environmental Sciences Centre , 3000-456 Coimbra , Portugal"}]}],"member":"374","published-online":{"date-parts":[[2022,10,31]]},"reference":[{"key":"2025041514040698389_j_bot-2022-0046_ref_001","unstructured":"Aleem, A.A. (1978). Contributions to the study of the marine algae of the Red Sea. I\u00a0\u2013 the algae in the neighborhood of Al-Ghardaqa, Egypt (Cyanophyceae, Chlorophyta and Phaeophyceae). Bull. Fac. Sci., King Abdulaziz. Univ. 2: 73\u201388."},{"key":"2025041514040698389_j_bot-2022-0046_ref_002","doi-asserted-by":"crossref","unstructured":"Ansari, A.A. (2016). Seasonal dynamics in the relative density of aquatic flora along some coastal areas of the Red Sea, Tabuk, Saudi Arabia. Egypt. J.\u00a0Aquat. Res. 42: 273\u2013280, https:\/\/doi.org\/10.1016\/j.ejar.2016.06.001.","DOI":"10.1016\/j.ejar.2016.06.001"},{"key":"2025041514040698389_j_bot-2022-0046_ref_003","unstructured":"APHA (2005). Standard methods for the examination of water and wastewater, 21st ed. American Public Health Association: Washington DC, USA."},{"key":"2025041514040698389_j_bot-2022-0046_ref_004","doi-asserted-by":"crossref","unstructured":"Ateweberhan, M., Bruggemann, J.H., and Breeman, A.M. (2006). Effects of extreme seasonality on community structure and functional group dynamics of coral reef algae in the southern Red Sea (Eritrea). Coral Reefs 25: 391\u2013406, https:\/\/doi.org\/10.1007\/s00338-006-0109-6.","DOI":"10.1007\/s00338-006-0109-6"},{"key":"2025041514040698389_j_bot-2022-0046_ref_005","doi-asserted-by":"crossref","unstructured":"Bahartan, K., Zibdah, M., Ahmed, Y., Israel, A., Brickner, I., and Abelson, A. (2010). Macroalgae in the coral reefs of Eilat (Gulf of Aqaba, Red Sea) as a possible indicator of reef degradation. Mar. Pollut. Bull. 60: 759\u2013764, https:\/\/doi.org\/10.1016\/j.marpolbul.2009.11.017.","DOI":"10.1016\/j.marpolbul.2009.11.017"},{"key":"2025041514040698389_j_bot-2022-0046_ref_006","doi-asserted-by":"crossref","unstructured":"Bouilloux, A., Valet, J.P., Bassinat, F., Joron, J.L., Dewilde, F., Blanc-Valleron, M.M., and Moreno, E. (2013). Influence of seawater exchanges across the bab-el-mandeb strait on sedimentation in the southern Red Sea during the last 60 ka. Paleoceanography 28: 675\u2013687, https:\/\/doi.org\/10.1002\/2013pa002544.","DOI":"10.1002\/2013PA002544"},{"key":"2025041514040698389_j_bot-2022-0046_ref_007","doi-asserted-by":"crossref","unstructured":"Coppejans, E. and Beeckman, T. (1990). Caulerpa (Chlorophyta, Caulerpales) from the Kenyan coast. Nova Hedwig 50: 111\u2013125. https:\/\/doi.org\/10.1127\/nova.hedwigia\/50\/1990\/111.","DOI":"10.1127\/nova.hedwigia\/50\/1990\/111"},{"key":"2025041514040698389_j_bot-2022-0046_ref_008","doi-asserted-by":"crossref","unstructured":"Diaz-Pulido, G. and McCook, L.J. (2008). Effects of nutrient enhancement of the fecundity of a coral reef macroalgae. J.\u00a0Exp. Mar. Biol. Ecol. 317: 13\u201324, https:\/\/doi.org\/10.1016\/j.jembe.2004.11.013.","DOI":"10.1016\/j.jembe.2004.11.013"},{"key":"2025041514040698389_j_bot-2022-0046_ref_009","unstructured":"Diaz-Pulido, G., McCook, L.J., Larkum, A.W.D., Lotze, H.K., Raven, J.A., Schaffelke, B., Jennifer, E., J.E., and Steneck, R.S. (2007). Vulnerability of macroalgae of the Great Barrier Reef to climate change. In: Johnson, J.E. and Marshall, P.A. (Eds.), Climate change and the Great Barrier Reef. Great Barrier Reef Marine Park Authority & Australian Greenhouse Office, Townsville, pp. 153\u2013192. ISBN 9781876945619."},{"key":"2025041514040698389_j_bot-2022-0046_ref_010","doi-asserted-by":"crossref","unstructured":"Einav, R., Guiry, M.D., and Israel, \u00c1. (2021). A revised list of seaweeds from the Red Sea (1756\u20132020). Isr. J.\u00a0Plant Sci. 68: 175\u2013247, https:\/\/doi.org\/10.1163\/22238980-bja10036.","DOI":"10.1163\/22238980-bja10036"},{"key":"2025041514040698389_j_bot-2022-0046_ref_011","doi-asserted-by":"crossref","unstructured":"El-Manawy, I.M. (2008). The spatial variability of macroalgal communities and their functional groupings on the fringing reefs of Ghardaqah, Egypt. Egypt. J.\u00a0Phycol. 9: 55\u201369, https:\/\/doi.org\/10.21608\/egyjs.2008.114810.","DOI":"10.21608\/egyjs.2008.114810"},{"key":"2025041514040698389_j_bot-2022-0046_ref_012","doi-asserted-by":"crossref","unstructured":"El-Manawy, I.M. and Shafik, M.A. (2000). Ecological and morphological studies on genus Caulerpa from the Egyptian Red Sea coasts. Egypt. J.\u00a0Phycol. 1: 71\u201386, https:\/\/doi.org\/10.21608\/egyjs.2000.113219.","DOI":"10.21608\/egyjs.2000.113219"},{"key":"2025041514040698389_j_bot-2022-0046_ref_031","doi-asserted-by":"crossref","unstructured":"El Shoubaky, G.A. and Kaiser, M.A. (2014). Monitoring spatial and temporal seaweeds variation using remote sensing data in Al-shoaiba coast, Red Sea. Br. J.\u00a0Environ. Clim. Change 4: 2231\u20134784, https:\/\/doi.org\/10.9734\/bjecc\/2014\/10034.","DOI":"10.9734\/BJECC\/2014\/10034"},{"key":"2025041514040698389_j_bot-2022-0046_ref_013","doi-asserted-by":"crossref","unstructured":"Fahmy, M.A., Abdel Fattah, L.M., Abdel-Halim, A.M., Aly-Eldeen1, M.A., Abo-El-Khair, E.M., Ahdy, H.H., Hemeilly, A., El-Soud, A., and Sheridan, M. (2016). Evaluation of the quality for the Egyptian\u00a0Red Sea coastal waters during 2011-2013. J.\u00a0Environ. Prot. Sci. 7:\u00a01810\u20131834, https:\/\/doi.org\/10.4236\/jep.2016.712145.","DOI":"10.4236\/jep.2016.712145"},{"key":"2025041514040698389_j_bot-2022-0046_ref_014","doi-asserted-by":"crossref","unstructured":"Forssk\u00e5l, P. (1775). Descriptiones animalium avium, amphibiorum, piscium, insectorum, vermium; quae in itinere orientali observavit Petrus Forsk\u00e5l. Prof. Haun. Post mortem auctoris edidit carsten niebuhr. M\u00f6lleri, Hauniae, Copenhagen, p. 140.","DOI":"10.5962\/bhl.title.2154"},{"key":"2025041514040698389_j_bot-2022-0046_ref_015","unstructured":"Guiry, M.D. and Guiry, G.M. (2022). Algaebase: listing the World\u2019s algae, Available at: https:\/\/www.algaebase.org\/ (Accessed 27 July 2022)."},{"key":"2025041514040698389_j_bot-2022-0046_ref_016","doi-asserted-by":"crossref","unstructured":"Harley, C.D.G., Anderson, K.M., Demes, K.W., Jorve, J.P., Kordas, R.L., Coyle, T.A., and Graham, M.H. (2012). Effects of climate change on global seaweed communities. J.\u00a0Phycol. 48: 1064\u20131078, https:\/\/doi.org\/10.1111\/j.1529-8817.2012.01224.x.","DOI":"10.1111\/j.1529-8817.2012.01224.x"},{"key":"2025041514040698389_j_bot-2022-0046_ref_018","doi-asserted-by":"crossref","unstructured":"Ibraheem, B.M., Alharbi, R.M., Abdel-Raouf, N., and Al-Enazi, N.M. (2014). Contributions to the study of the marine algae inhabiting\u00a0Umluj seashore, Red Sea. Beni-Suef Univ. J.\u00a0Basic Appl. Sci. 3: 278\u2013285, https:\/\/doi.org\/10.1016\/j.bjbas.2014.11.001.","DOI":"10.1016\/j.bjbas.2014.11.001"},{"key":"2025041514040698389_j_bot-2022-0046_ref_019","doi-asserted-by":"crossref","unstructured":"Issa, A.A., Hifney, A.F., Abdel-Gawad, K.M., and Gomaa, M. (2014). Spatio temporal and environmental factors influencing macroalgal \u03b2 diversity in the Red Sea, Egypt. Bot. Mar. 57:\u00a099\u2013110, https:\/\/doi.org\/10.1515\/bot-2013-0107.","DOI":"10.1515\/bot-2013-0107"},{"key":"2025041514040698389_j_bot-2022-0046_ref_017","unstructured":"Kepel, R.C., Lumingas, L.J.L., Tombokan, J.L., and Mantiri, D.M.H. (2019). Biodiversity and community structure of seaweeds in Minahasa Peninsula, North sulawesi, Indonesia. Aquac. Aquar. Conserv. Legis. 12: 880\u2013892."},{"key":"2025041514040698389_j_bot-2022-0046_ref_020","unstructured":"Mohamed, N.A., Ibraheem, I.B., and Mohamed, S.H. (2006). Seasonal occurrence and variation in macroalgal populations in Hurghada, Safaga and Qusier coasts of red-sea, Egypt. Proc. 4th Int. Con. Biol. Sci. (Botany), pp.\u00a0189\u2013197\u200f."},{"key":"2025041514040698389_j_bot-2022-0046_ref_021","unstructured":"Naser, A.H. (1947). Synopsis of the marine algae of the Egyptian Red Sea coast. Bull. Fac. Sci-Egypt. Unvi 26: 1\u2013155."},{"key":"2025041514040698389_j_bot-2022-0046_ref_022","doi-asserted-by":"crossref","unstructured":"Neumann, B., Ott, K., and Kenchington, R. (2017). Strong sustainability in coastal areas: a conceptual interpretation of SDG 14. Sustain. Sci. 12: 1019\u20131035, https:\/\/doi.org\/10.1007\/s11625-017-0472-y.","DOI":"10.1007\/s11625-017-0472-y"},{"key":"2025041514040698389_j_bot-2022-0046_ref_023","unstructured":"Odum, E.P. (1971). Fundamentals of ecology, 3rd ed. W.B. Saunders Co., Philadelphia, p.\u00a0574. ISBN 13: 9780721669410."},{"key":"2025041514040698389_j_bot-2022-0046_ref_024","unstructured":"Oza, R.M. and Zaidi, S.H. (2001). A revised Checklist of Indian marine algae. Government of India, New Delhi, p. 296."},{"key":"2025041514040698389_j_bot-2022-0046_ref_025","unstructured":"Papenfuss, G.F. (1968). A history catalogue and bibliography of Red Sea benthic algae. Isr. J.\u00a0Bot. 17: 1\u2013119."},{"key":"2025041514040698389_j_bot-2022-0046_ref_026","doi-asserted-by":"crossref","unstructured":"Raitsos, D.E., Yi, X., Platt, T., Racault, M.F., Brewin, R.J., Pradhan, Y., Papadopoulos, V.P., Sathyendranath, S., and Hoteit, I. (2015). Monsoon oscillations regulate fertility of the Red Sea. Geophys. Res. Lett. 42: 855\u2013862, https:\/\/doi.org\/10.1002\/2014gl062882.","DOI":"10.1002\/2014GL062882"},{"key":"2025041514040698389_j_bot-2022-0046_ref_027","unstructured":"Rasser, M. and Piller, W.E. (1997). Depth distribution of calcareous encrusting associations in the northern Red Sea (Safaga, Egypt) and their geological implications. In: Proc. 8th Int. Coral Reef sym., Vol.\u00a01, pp.\u00a0743\u2013748."},{"key":"2025041514040698389_j_bot-2022-0046_ref_028","doi-asserted-by":"crossref","unstructured":"Rasul, N.M.A., Stewart, I.C.F., and Nawaz, Z.A. (2015). Introduction to the Red Sea: its origin, structure, and environment. In: Rasul, N. and Stewart, I. (Eds.). The Red Sea. Springer Earth System Sciences, Springer, Berlin, Heidelberg, pp.\u00a01\u201328.","DOI":"10.1007\/978-3-662-45201-1_1"},{"key":"2025041514040698389_j_bot-2022-0046_ref_029","unstructured":"Rayss, T. (1959). Contribution \u00e0 la connaissance de la flore marine de la Mer Rouge. Bull. Sea Fish. Res. Sta. Haifa 23: 1\u201332."},{"key":"2025041514040698389_j_bot-2022-0046_ref_030","unstructured":"Rayss, T. and Dor, I. (1963). Nouvelle contribution a la connaissance des algues marine de la Mer Rouge. Bull. Sea Fish Res. 34:\u00a011\u201342."},{"key":"2025041514040698389_j_bot-2022-0046_ref_032","unstructured":"Sahoo, D. (2001). Seaweeds of Indian coast. A.P.H. Publishing Corporation, New Delhi, p.\u00a0283."},{"key":"2025041514040698389_j_bot-2022-0046_ref_033","doi-asserted-by":"crossref","unstructured":"Schaffelke, B. and Klumpp, D.W. (1997). Biomass and productivity of tropical macroalgae on three nearshore fringing reefs in the central Great Barrier Reef, Australia. Bot. Mar. 40: 373\u2013383, https:\/\/doi.org\/10.1515\/botm.1997.40.1-6.373.","DOI":"10.1515\/botm.1997.40.1-6.373"},{"key":"2025041514040698389_j_bot-2022-0046_ref_034","doi-asserted-by":"crossref","unstructured":"Shabib, M., El-Taher, A., Mohamed, N.M.A., Madkour, H.A., and Ashry, H.A. (2021). Assessment of radioactivity concentration of natural radionuclides and radiological hazard indices in coral reefs in the Egyptian Red Sea. J.\u00a0Radioanal. Nucl. Chem. 329: 1199\u20131212, https:\/\/doi.org\/10.1007\/s10967-021-07896-5.","DOI":"10.1007\/s10967-021-07896-5"},{"key":"2025041514040698389_j_bot-2022-0046_ref_035","doi-asserted-by":"crossref","unstructured":"Smith, J.E., Shaw, M., Edwards, R.A., Obura, D., Pantos, O., Sala, E., Sandin, S.A., Smriga, S., Hatay, M., and Rohwer, F.L. (2006). Indirect effects of algae on coral: algaemediated, microbe induced coral mortality. Ecol. Lett. 9: 835\u2013845, https:\/\/doi.org\/10.1111\/j.1461-0248.2006.00937.x.","DOI":"10.1111\/j.1461-0248.2006.00937.x"},{"key":"2025041514040698389_j_bot-2022-0046_ref_036","doi-asserted-by":"crossref","unstructured":"Tait, L.W. and Schiel, D.R. (2013). Impacts of temperature on primary productivity and respiration in Naturally structured macroalgal assemblages. PLoS One 8: e74413, https:\/\/doi.org\/10.1371\/journal.pone.0074413.","DOI":"10.1371\/journal.pone.0074413"},{"key":"2025041514040698389_j_bot-2022-0046_ref_037","doi-asserted-by":"crossref","unstructured":"Villa\u00e7a, R., Fonseca, A.C., Jensen, V.K., and Knoppers, B. (2010). Species composition and distribution of macroalgae on Atol das Rocas, Brazil, SW Atlantic. Bot. Mar. 53: 113\u2013122, https:\/\/doi.org\/10.1515\/bot.2010.013.","DOI":"10.1515\/BOT.2010.013"},{"key":"2025041514040698389_j_bot-2022-0046_ref_038","doi-asserted-by":"crossref","unstructured":"Weiss, A. and Martindale, R.C. (2017). Crustose coralline algae increased framework and diversity on ancient coral reefs. PLoS One 12: e0181637, https:\/\/doi.org\/10.1371\/journal.pone.0181637.","DOI":"10.1371\/journal.pone.0181637"},{"key":"2025041514040698389_j_bot-2022-0046_ref_039","unstructured":"Zanardini, G. (1858). Plantarum in mari rubro hucusque collectarum enumeratio. Memorie R. Ist. veneto Sci. 7: 209\u2013309, pls 3\u201314."}],"container-title":["Botanica Marina"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.degruyterbrill.com\/document\/doi\/10.1515\/bot-2022-0046\/xml","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.degruyterbrill.com\/document\/doi\/10.1515\/bot-2022-0046\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,4,15]],"date-time":"2025-04-15T14:47:33Z","timestamp":1744728453000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.degruyterbrill.com\/document\/doi\/10.1515\/bot-2022-0046\/html"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,10,31]]},"references-count":39,"journal-issue":{"issue":"6","published-online":{"date-parts":[[2022,10,31]]},"published-print":{"date-parts":[[2022,12,16]]}},"alternative-id":["10.1515\/bot-2022-0046"],"URL":"https:\/\/doi.org\/10.1515\/bot-2022-0046","relation":{},"ISSN":["0006-8055","1437-4323"],"issn-type":[{"type":"print","value":"0006-8055"},{"type":"electronic","value":"1437-4323"}],"subject":[],"published":{"date-parts":[[2022,10,31]]}}}