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

  title={Status, trends and drivers of kelp forests in Europe: an expert assessment},
  author={Rita M. Ara{\'u}jo and Joana Bernardes de Assis and Raymond Aguillar and L. Airoldi and Ignacio B{\'a}rbara and Inka Bartsch and Trine Bekkby and Hartvig Christie and Dominique Davoult and Sandrine Derrien-Courtel and Castrillon Fernandez and Stein Fredriksen and François Gevaert and Hege Gundersen and Andrea G{\'a}l and Lucile L{\'e}v{\^e}que and Nova Mieszkowska and Kjell Magnus Norderhaug and Paulo J. C. Oliveira and Araceli Puente and Jos{\'e} M. Rico and Eli Rinde and Holger Schubert and E.M.A. Strain and Myriam Valero and Fr{\'e}d{\'e}rique Viard and Isabel Sousa-Pinto},
  journal={Biodiversity and Conservation},
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… 

Kelp Forest Distribution in the Nordic Region

Kelp forests are productive coastal ecosystems that provide a range of ecosystem services. Mapping the distribution and area occupied by kelp forests is a critical step to identify their ecosystem

Variation in Population Structure and Standing Stocks of Kelp Along Multiple Environmental Gradients and Implications for Ecosystem Services

There is an increasing focus on ecosystem services provided by macroalgae worldwide, many which depend on its structural and morphological characteristics. Here we investigated how characteristics of

Status and Trends for the World’s Kelp Forests

Patterns and drivers of understory macroalgal assemblage structure within subtidal kelp forests

Kelp species are found along ~ 25% of the world’s coastlines, where they provide myriad of ecological goods and services. However, compared with many other terrestrial and marine vegetated

A review of subtidal kelp forests in Ireland: From first descriptions to new habitat monitoring techniques

Abstract Aim Kelp forests worldwide are important marine ecosystems that foster high primary to secondary productivity and multiple ecosystem services. These ecosystems are increasingly under threat

Habitat Features and Their Influence on the Restoration Potential of Marine Habitats in Europe

To understand the restoration potential of degraded habitats, it is important to know the key processes and habitat features that allow for recovery after disturbance. As part of the EU (Horizon

The role of physical variables in biodiversity patterns of intertidal macroalgae along European coasts

In the frame of the COST ACTION ‘EMBOS’ (Development and implementation of a pan-European Marine Biodiversity Observatory System), coverage of intertidal macroalgae was estimated at a range of marine

Temperate Kelp Forest Collapse by Fish Herbivory: A Detailed Demographic Study

Kelps dominate rocky shores in temperate latitudes, acting as important foundation species. Recently, kelp forests have received growing attention for their decline around the world. Climate change

Sustainable management of economically valuable seaweed stocks at the limits of their range of distribution: Ascophyllum nodosum (Phaeophyceae) and its southernmost population in Europe

Seaweeds such as Ascophyllum nodosum are essential components of coastal ecosystems, being frequently relevant both ecologically and economically. The current increasing demand for seaweed biomass



Decline in Kelp in West Europe and Climate

It is shown that many populations of L. digitata along European coasts are on the verge of local extinction due to a climate-caused increase in sea temperature, and the possible implications of global climate change for the geographical patterns of the species using temperature data from theCMIP5 are evaluated.

Using genetic tools for sustainable management of kelps: a literature review and the example of Lami

The analyses of spatio-temporal variation clearly demonstrate the effect of small population sizes on the genetic instability of isolated L. digitata populations and have implications for managing this genetic resource.

REVIEW: Potential effects of kelp species on local fisheries

The consistency of most studies in showing a positive kelp–fishery relationship supports the protection of kelp habitats stated by current environmental directives, but achieving their goals requires that the limitations are addressed through better connections between research, management practice and policy.

Threats and knowledge gaps for ecosystem services provided by kelp forests: a northeast Atlantic perspective

Information is synthesized from >60 years of research on the structure and functioning of kelp forest habitats in European waters, with particular emphasis on the coasts of UK and Ireland, which represents an important biogeographic transition zone that is subjected to multiple threats and stressors.

Macro-environmental modelling of the current distribution of Undaria pinnatifida (Laminariales, Ochrophyta) in northern Iberia

A statistically significant Favourability model is obtained where the chlorophyll concentration in summer was the most influential variable and the photosynthetically active radiation in spring was a secondary variable that best characterized the presence of U. pinnatifida in the northern Iberian coast.

Using historical data to detect temporal changes in the abundances of intertidal species on Irish shores

Comparison of the ACFOR data over a 45-year period, between the historical survey and re-survey, showed statistically significant changes in the abundances of 12 of the 27 species examined, three of which fell within the margin of operator error.

Findkelp, a GIS-based community participation project to assess Portuguese kelp conservation status

Assis, J. Tavares D., Tavares, J., Cunha, A., Alberto F., Serrao, E.A. 2009. Findkelp, a GIS-based community participation project to assess Portuguese kelp conservation status. Journal of Coastal

Regional-scale analysis of subtidal rocky shore community

This study analyzed data from 38 subtidal rocky reef sites collected by a single diving team of marine biologists along the coast of Brittany from 2004 to 2010 to show that northern and southern Brittany showed strong differences in diversity and structure of the dominant kelp species.