{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,18]],"date-time":"2025-10-18T20:58:52Z","timestamp":1760821132029,"version":"build-2065373602"},"reference-count":32,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2020,1,10]],"date-time":"2020-01-10T00:00:00Z","timestamp":1578614400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Diversity"],"abstract":"<jats:p>Most of the biodiversity studies in the South European Atlantic Shelf ecoregion are limited to shallow subtidal or intertidal habitats, while deeper reef habitats, also of relevant ecological importance, are particularly understudied. Macroalgal communities, associated fauna, and sea surface temperature were studied in deep reefs (25\u201330 m) at two locations in this ecoregion: Parcel, North of Portugal (41\u00b0 N), and Tarifa, Southern Spain (35\u00b0 N). Specifically, algal assemblages were assessed using biomass collection and associated ichthyofauna was assessed using visual census techniques using scuba. Seawater surface temperature was higher (&gt;3 \u00b0C) in the southern region\u2014Tarifa, compared to the northern region\u2014Parcel. Our survey revealed 18 fish species and 23 algae species. The highest abundance of cold-water species (both macroalgae and fish species) was recorded in Parcel and warm-water species were dominant in Tarifa. In light of climate global trends, both regions might experience biodiversity shifts towards tropicalization. Current knowledge on their biodiversity is imperative to further evaluate potential shifts.<\/jats:p>","DOI":"10.3390\/d12010026","type":"journal-article","created":{"date-parts":[[2020,1,10]],"date-time":"2020-01-10T10:20:29Z","timestamp":1578651629000},"page":"26","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Snapshot of Macroalgae and Fish Assemblages in Temperate Reefs in the Southern European Atlantic Ecoregion"],"prefix":"10.3390","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8249-5224","authenticated-orcid":false,"given":"Jo\u00e3o N.","family":"Franco","sequence":"first","affiliation":[{"name":"CIIMAR\/CIMAR\u2014Interdisciplinary Centre of Marine and Environmental Research, University of Porto, 4450-208 Matosinhos, Portugal"},{"name":"MARE\u2014Marine and Environmental Sciences Centre, ESTM, Instituto Polit\u00e9cnico de Leiria, 2520-620 Peniche, Portugal"}]},{"given":"Francisco","family":"Arenas","sequence":"additional","affiliation":[{"name":"CIIMAR\/CIMAR\u2014Interdisciplinary Centre of Marine and Environmental Research, University of Porto, 4450-208 Matosinhos, Portugal"}]},{"given":"Isabel","family":"Sousa-Pinto","sequence":"additional","affiliation":[{"name":"CIIMAR\/CIMAR\u2014Interdisciplinary Centre of Marine and Environmental Research, University of Porto, 4450-208 Matosinhos, Portugal"},{"name":"FCUP\u2014Faculty of Sciences, Department of Biology, University of Porto, 4150-179 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7013-494X","authenticated-orcid":false,"given":"Carmen B.","family":"de los Santos","sequence":"additional","affiliation":[{"name":"CCMAR\u2014Center of Marine Sciences of Algarve, University of Algarve, 8005-139 Faro, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2020,1,10]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"127","DOI":"10.1016\/0306-4565(94)00043-I","article-title":"Seventy years\u2019 observations of changes in distribution and abundance of zooplankton and intertidal organisms in the western English Channel in relation to rising sea temperature","volume":"20","author":"Southward","year":"1995","journal-title":"J. Therm. Biol."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"2592","DOI":"10.1111\/j.1365-2486.2007.01451.x","article-title":"Do distributional shifts of northern and southern species of algae match the warming pattern?","volume":"13","author":"Lima","year":"2007","journal-title":"Glob. Chang. Biol."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"573","DOI":"10.1641\/B570707","article-title":"Marine Ecoregions of the World: A Bioregionalization of Coastal and Shelf Areas","volume":"57","author":"Spalding","year":"2007","journal-title":"Bioscience"},{"key":"ref_4","unstructured":"L\u00fcning, K. (1990). Seaweeds: Their Environment, Biogeography and Ecophysiology, by Klaus L\u00fcnin, John Wiley."},{"key":"ref_5","doi-asserted-by":"crossref","unstructured":"Wiencke, C., and Bischof, K. (2012). Seaweed Biology, Springer. Ecological Studies.","DOI":"10.1007\/978-3-642-28451-9"},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"1516","DOI":"10.1126\/science.1222732","article-title":"Biotic multipliers of climate change","volume":"336","author":"Zarnetske","year":"2012","journal-title":"Science"},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"1000","DOI":"10.1111\/1365-2435.13310","article-title":"Tropicalisation of temperate reefs: Implications for ecosystem functions and management actions","volume":"33","author":"McCosker","year":"2019","journal-title":"Funct. Ecol."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"919","DOI":"10.1038\/nclimate1958","article-title":"Global imprint of climate change on marine life","volume":"3","author":"Poloczanska","year":"2013","journal-title":"Nat. Clim. Chang."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"58","DOI":"10.1111\/j.1466-8238.2010.00575.x","article-title":"Long-term shifts in abundance and distribution of a temperate fish fauna: A response to climate change and fishing practices","volume":"20","author":"Last","year":"2011","journal-title":"Glob. Ecol. Biogeogr."},{"key":"ref_10","first-page":"471","article-title":"Warm Temperate Seaweed Communities: A Case Study of Deep Water Kelp Forests from the Alboran Sea (SW Mediterranean Sea) and the Strait of Gibraltar","volume":"Volume 219","author":"Wiencke","year":"2012","journal-title":"Seaweed Biology"},{"key":"ref_11","doi-asserted-by":"crossref","unstructured":"Acker, J.G., and Leptoukh, G. (2007). Online analysis enhances use of NASA Earth Science Data. Eos (Washington. DC.), 88, Available online: https:\/\/agupubs.onlinelibrary.wiley.com\/doi\/pdf\/10.1029\/2007EO020003.","DOI":"10.1029\/2007EO020003"},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"9","DOI":"10.3354\/meps09941","article-title":"Patterns of landscape and assemblage structure along a latitudinal gradient in ocean climate","volume":"466","author":"Tuya","year":"2012","journal-title":"Mar. Ecol. Prog. Ser."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"1","DOI":"10.3354\/meps11445","article-title":"Herbivory drives kelp recruits into \u201chiding\u201d in a warm ocean climate","volume":"536","author":"Franco","year":"2015","journal-title":"Mar. Ecol. Prog. Ser."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"217","DOI":"10.1111\/j.1095-8649.2011.03015.x","article-title":"The relative influence of local to regional drivers of variation in reef fishes","volume":"79","author":"Tuya","year":"2011","journal-title":"J. Fish Biol."},{"key":"ref_15","unstructured":"Froese, R., and Pauly, D. (2019, December 20). FishBase. Available online: www.fishbase.org."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1111\/j.0022-1112.2004.00583.x","article-title":"Additional records and notes for Wheeler\u2019s (1992) List of the Common and Scientific Names of Fishes of the British Isles","volume":"65","author":"Wheeler","year":"2004","journal-title":"J. Fish Biol."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"427","DOI":"10.1046\/j.1472-4642.2003.00048.x","article-title":"Regional differences in kelp-associated algal assemblages on temperate limestone reefs in south-western Australia","volume":"9","author":"Wernberg","year":"2003","journal-title":"Divers. Distrib."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"221","DOI":"10.2216\/i0031-8884-27-2-.1","article-title":"A reassessment of Northern Atlantic seaweed biogeography","volume":"27","author":"Alvarez","year":"1988","journal-title":"Phycologia"},{"key":"ref_19","unstructured":"Guiry, M.D., and Guiry, G.M. (2019, December 20). AlgaeBase. Available online: www.algaebase.org."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"295","DOI":"10.1007\/s11120-015-0184-z","article-title":"Photosynthetic use of inorganic carbon in deep-water kelps from the Strait of Gibraltar","volume":"127","year":"2016","journal-title":"Photosynth. Res."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"511","DOI":"10.1002\/joc.1009","article-title":"The upwelling regime off the west Portuguese coast, 1941\u20132000","volume":"24","author":"Lemos","year":"2004","journal-title":"Int. J. Climatol."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"47","DOI":"10.1111\/1365-2745.12810","article-title":"The \u2018golden kelp\u2019 Laminaria ochroleuca under global change: Integrating multiple eco-physiological responses with species distribution models","volume":"106","author":"Franco","year":"2018","journal-title":"J. Ecol."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"164","DOI":"10.1007\/s00227-017-3196-8","article-title":"Modulation of different kelp life stages by herbivory: Compensatory growth versus population decimation","volume":"164","author":"Franco","year":"2017","journal-title":"Mar. Biol."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"20140846","DOI":"10.1098\/rspb.2014.0846","article-title":"The tropicalization of temperate marine ecosystems: Climate-mediated changes in herbivory and community phase shifts","volume":"281","author":"Steinberg","year":"2014","journal-title":"Proc. R. Soc. B Biol. Sci."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"169","DOI":"10.1126\/science.aad8745","article-title":"Climate-driven regime shift of a temperate marine ecosystem","volume":"353","author":"Wernberg","year":"2016","journal-title":"Science"},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"1478","DOI":"10.4319\/lo.2010.55.4.1478","article-title":"Global climate change amplifies the entry of tropical species into the eastern Mediterranean Sea","volume":"55","author":"Raitsos","year":"2010","journal-title":"Limnol. Oceanogr."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"401","DOI":"10.3750\/AIEP\/02253","article-title":"New records of two southern fishes found in northern waters of the Iberian Peninsula","volume":"47","author":"Arronte","year":"2017","journal-title":"Acta Ichthyol. Piscat."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"241","DOI":"10.3354\/meps10749","article-title":"Tropicalization of fish assemblages in temperate biogeographic transition zones","volume":"504","author":"Assis","year":"2014","journal-title":"Mar. Ecol. Prog. Ser."},{"key":"ref_29","first-page":"1","article-title":"New evidence of marine fauna tropicalization offthe Southwestern Iberian Peninsula (Southwest Europe)","volume":"11","author":"Morais","year":"2019","journal-title":"Diversity"},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"192","DOI":"10.1016\/j.actao.2006.04.002","article-title":"Macroalgal communities of intertidal rock pools in the northwest coast of Portugal","volume":"30","author":"Quintino","year":"2006","journal-title":"Acta Oecologica"},{"key":"ref_31","first-page":"1","article-title":"Estudio ficol\u00f3gico del intermareal y fondos submareales del sector oriental del Parque Natural del Estrecho, entre el puerto de Tarifa y Piedra Alta","volume":"2","author":"Bermejo","year":"2011","journal-title":"MIGRES Rev. Ecol."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"833","DOI":"10.1111\/jbi.12677","article-title":"Deep reefs are climatic refugia for genetic diversity of marine forests","volume":"43","author":"Assis","year":"2016","journal-title":"J. Biogeogr."}],"container-title":["Diversity"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-2818\/12\/1\/26\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,13]],"date-time":"2025-10-13T13:42:40Z","timestamp":1760362960000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-2818\/12\/1\/26"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,1,10]]},"references-count":32,"journal-issue":{"issue":"1","published-online":{"date-parts":[[2020,1]]}},"alternative-id":["d12010026"],"URL":"https:\/\/doi.org\/10.3390\/d12010026","relation":{},"ISSN":["1424-2818"],"issn-type":[{"type":"electronic","value":"1424-2818"}],"subject":[],"published":{"date-parts":[[2020,1,10]]}}}