Cited by 143Marine and coastal plant biologyMarine Ecology and Invasive SpeciesMarine Biology and Ecology Research

Status, trends and drivers of kelp forests in Europe: an expert assessment.

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Araújo, R. M., Assis, J., Aguillar, R., Airoldi, L., Bárbara, I., Bartsch, I., Bekkby, T., Christie, H. +19 more·2016·Biodiversity and Conservation

Abstract

A comprehensive expert consultation was conducted in order to assess the status, trends and the most important drivers of change in the abundance and geographical distribution of kelp forests in European waters. This consultation included an on-line questionnaire, results from a workshop and data provided by a selected group of experts working on kelp forest mapping and eco-evolutionary research. Differences in status and trends according to geographical areas, species identity and small-scale variations within the same habitat where shown by assembling and mapping kelp distribution and trend data. Significant data gaps for some geographical regions, like the Mediterranean and the southern Iberian Peninsula, were also identified. The data used for this study confirmed a general trend with decreasing abundance of some native kelp species at their southern distributional range limits and increasing abundance in other parts of their distribution (Saccharina latissima and Saccorhiza polyschides). The expansion of the introduced species Undaria pinnatifida was also registered. Drivers of observed changes in kelp forests distribution and abundance were assessed using experts’ opinions. Multiple possible drivers were identified, including global warming, sea urchin grazing, harvesting, pollution and fishing pressure, and their impact varied between geographical areas. Overall, the results highlight major threats for these ecosystems but also opportunities for conservation. Major requirements to ensure adequate protection of coastal kelp ecosystems along European coastlines are discussed, based on the local to regional gaps detected in the study.

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  • A recent trend shows a reduction in the abundance of some harvested species in some coastal areas, raising additional concerns on the sustainability of harvesting from wild stocks, which potentially has an impact on natural communities.

    “The recent trend showing a reduction in the abundance of some of the harvested species in some coastal areas (Araújo et al., 2016; Krumhansl et al., 2016; FilbeeDexter and Wernberg, 2018; Casado-Amezúa et al., 2019; Wilson et al., 2019) raises additional concerns on the sustainability of harvesting from wild stocks, which potentially has an impact on the natural communities (Lorentsen et al., 2010”

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  1. Fischer-Piette E, Seoane-Camba J (1962) E ´cologie de la riatype: la Ria del Barquero. Bulletin de l'Institut Oceanogra-phique 1244:1-36
  2. Fischer-Piette E, Seoane-Camba J (1963) Examen e ´cologique della rı ´a de Camarin ˜as. Bulletin de l'Institut Oceanographique 61:1-38
  3. Izquierdo Moreno JL (1998) Estudio biosistema ´tico del ge ´nero Laminaria Sect. Digitatae (Laminariales, Phaeophyceae) en las costas atla ´nticas de la Penı ´nsula Ibe ´rica. Dissertation, Universidad Complutense

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Authors
Araújo, R. M., Assis, J., Aguillar, R., Airoldi, L., Bárbara, I., Bartsch, I., Bekkby, T., Christie, H., Davoult, D., Derrien-Courtel, S., Fernandez, C., Fredriksen, S., Gevaert, F., Gundersen, H., Le Gal, A., Lévêque, L., Mieszkowska, N., Norderhaug, K. M., Oliveira, P., Puente, A., Rico, J. M., Rinde, E., Schubert, H., Strain, E. M., Valero, M., Viard, F., & Sousa-Pinto, I.
Affiliations
  • Universidade do Porto (PT)
  • Centro Interdisciplinar de Investigação Marinha e Ambiental (PT)
  • Oceana (US)
  • CoNISMa (IT)
  • Universidade da Coruña (ES)
  • Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung (DE)
  • Norwegian Institute for Water Research (NO)
  • Centre National de la Recherche Scientifique (FR)
  • Biologie des Organismes et Écosystèmes Aquatiques (FR)
  • Universidad de Oviedo (ES)
  • University of Oslo (NO)
  • Marine Biological Association of the United Kingdom (GB)
  • Universidad de Cantabria (ES)
  • University of Rostock (DE)
  • The University of Sydney (AU)
Corresponding author
Araújo, R. M.
Venue
Biodiversity and Conservation
Published
2016-05-28
Volume
25
Issue
7
Pages
1319-1348
ISSN
  • 0960-3115 (ISSN-L)
  • 1572-9710
OpenAlex
W2401722078
Cited by
143
References
150
Citations by year
2026: 5 · 2025: 11 · 2024: 16 · 2023: 13 · 2022: 22 · 2021: 14 · 2020: 14 · 2019: 27 · 2018: 10 · 2017: 5 · 2016: 6
FWCI
12.95
Type
journal article
Language
en
Open access
Locations
  • Biodiversity and Conservation (publishedVersion)
  • Helmholtz-Zentrum für Polar-und Meeresforschung (Alfred-Wegener-Institut) (acceptedVersion)
  • HAL (submittedVersion, other-oa)
  • Archivio istituzionale della ricerca (Alma Mater Studiorum Università di Bologna) (submittedVersion)
  • Consultation of the Doctoral Thesis Database (TESEO) (Ministerio de Educación, Cultura y Deporte) (submittedVersion, cc-by-nc-nd)
  • Figshare (submittedVersion)
  • LillOA (Université de Lille (University Of Lille)) (submittedVersion, other-oa)
  • Marine Biological Association (submittedVersion)
  • Portuguese National Funding Agency for Science, Research and Technology (RCAAP Project by FCT) (submittedVersion, other-oa)
  • Padua Research Archive (University of Padova) (submittedVersion)
Funders
  • Seventh Framework Programme (265299)
  • Portuguese Foundation for Science and Technology (SFRH/BPD/75843/2011, SFRH/BPD/111003/2015)
Topics
  • Physical Sciences › Earth and Planetary Sciences › Oceanography › Marine and coastal plant biology
  • Physical Sciences › Environmental Science › Global and Planetary Change › Marine Ecology and Invasive Species
  • Physical Sciences › Earth and Planetary Sciences › Oceanography › Marine Biology and Ecology Research
Keywords
kelp forests, kelp distribution, drivers of change, Saccharina latissima, Saccorhiza polyschides, Undaria pinnatifida, introduced species, sea urchin grazing, kelp harvesting, pollution, fishing pressure, global warming, European seas, Mediterranean, southern Iberian Peninsula

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