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Introduction
Publications
Publications (48)
Fucalean algae are dominant canopy-forming species that create extensive and highly productive ecosystems in the intertidal and subtidal rocky shores of temperate seas. Regrettably, these marine forests are in decline due to various human drivers, with the Mediterranean Sea one of the most threatened areas. To design appropriate restoration strateg...
Active marine restoration is strongly encouraged to prevent the loss of the valuable habitats formed by Cystoseira sensu lato species, since they enhance biodiversity and preserve ecosystem functions and services. Current restoration interventions are mainly based on recruitment enhancement methods by deploying bags with fertile receptacles in situ...
The analysis of biological and ecological traits has a long history in evolutionary and ecological research. However, trait data are often scattered and standardised terminology that transcends taxonomic and biogeographical context are generally missing. As part of the development of a global trait database of marine species, we collated trait info...
Invasive species have been a focus of concern in recent decades, becoming more problematic due to the cumulative impacts of climate change. Understanding the interactions among stress factors is essential to anticipate ecosystems' responses. Hereby, robust modeling frameworks must be able to identify the environmental drivers of invasion and foreca...
The analysis of biological and ecological traits has a long history in evolutionary and ecological research. However, trait data are often scattered and standardised terminology that transcends taxonomic and biogeographical context are generally missing. As part of the development of a global trait database of marine species, we collated trait info...
Fucalean brown algae of the genera Carpodesmia, Cystoseira and Treptacantha are a typical feature of shallow subtidal Mediterranean habitats, where these habitat-forming seaweeds produce canopies playing a key role in the functioning of coastal ecosystems. In recent decades these communities have undergone a major decline in cover and biomass; this...
Morphological plasticity can enable algae to adapt to environmental change and increase their invasibility when introduced into new habitats. Nevertheless, there is still a lack of knowledge on how such plasticity can affect the invasion process of an invasive species. In this context, the high plasticity in the genus Caulerpa is well documented. H...
Gradual climate change and discrete extreme climatic events have driven shifts in the structure of populations and the distribution of species in many marine ecosystems. The most profound impacts of recent warming trends have been generally observed at species' warm edges and on large conspicuous species. However, given that different species and p...
Marine macroalgal forests are highly productive and iconic ecosystems, which are seriously threatened by number of factors such as habitat destruction, overgrazing, ocean warming, and pollution. The effect of chronic, but low levels of pollutants on the long-term survival of the canopy-forming algae is not well understood. Here we test the effects...
In this conference presentation, information was disclosed on the marine forest-forming Iberian kelp (Laminariales) in the Atlantic and Mediterranean coasts. The economic and ecological importance of ex situ germplasm banks to conserve the iberian kelps which are threatened, endemic, or commercially interesting are highlighted, as well as the conse...
The rare endemic Mediterranean alga Kallymenia spathulata was collected at Nice and Saint Raphael in June 2013 during a survey conducted along the French Mediterranean coast between Menton and Toulon (French Riviera). DNA barcode sequences (COI-5P) generated from the five collected specimens were identical and allied with Felicinia marginata, anoth...
Macroalgal forests have gone missing in several temperate rocky shores during the last decades, triggering important changes in the seascape. Cystoseira species are some of the main habitat-forming species on shallow water Mediterranean rocky bottoms and follow the same tendency, which has been mainly related to habitat destruction and pollution. H...
Macroalgal forests have gone missing in several temperate rocky shores during the last decades, triggering important changes in the seascape. Cystoseira species are some of the main habitat-forming species on shallow water Mediterranean rocky bottoms and follow the same tendency, which has been mainly related to habitat destruction and pollution. H...
: In the Mediterranean Sea, many species of Cystoseira , which are important habitat-forming species on shallow rocky bottoms, have gone missing from many coastal areas, impairing essential ecosystem services. Cystoseira crinita forests thrive in very shallow waters from sheltered environments and are currently regressing in several European shores...
: In the Mediterranean Sea, many species of Cystoseira , which are important habitat-forming species on shallow rocky bottoms, have gone missing from many coastal areas, impairing essential ecosystem services. Cystoseira crinita forests thrive in very shallow waters from sheltered environments and are currently regressing in several European shores...
Macroalgal forests have gone missing from most temperate rocky shores during the last decades, triggering an important biodiversity loss. Cystoseira species are some of the main marine habitat-forming species on shallow water Mediterranean rocky bottoms and follow the same tendency, mainly related to habitat destruction and pollution. However, here...
Macroalgal forests provide essential ecosystem services and are home for a wide variety of organisms. The genus Cystoseira includes several species, each being dominant in a determined range of environmental variables. Most Cystoseira species are Mediterranean endemisms, and show clear signs of regression across all their distribution range. Even i...
: In the Mediterranean Sea, many species of Cystoseira , which are important habitat-forming species on shallow rocky bottoms, have gone missing from many coastal areas, impairing essential ecosystem services. Cystoseira crinita forests thrive in very shallow waters from sheltered environments and are currently regressing in several European shores...
Macroalgal forests provide essential ecosystem services and are home for a wide variety of organisms. The genus Cystoseira includes several species, each being dominant in a determined range of environmental variables. Most Cystoseira species are Mediterranean endemisms, and show clear signs of regression across all their distribution range. Even i...
Maërl is a benthic community composed of accumulations of coralline red algae with an essential eco‐biological role in marine ecosystems.
This low‐resilience community has acquired a high conservation status as many anthropogenic impacts threaten this globally distributed ecosystem. Some of the potentially more important but less studied impacts ar...
Maerl beds, which harbour productive, diverse benthic communities, are threatened by human activities. Although some types of fishing activities can impact maerl beds, their effects are poorly studied due to the lack of appropriate un-fished control sites. In this study, we took advantage of the 25 yr old no-take Columbretes Islands Marine Protecte...
The current study presents the most detailed multigene phylogenetic assessment of the red algal family Kallymeniaceae to date emphasising the floras of Australia (220 specimens), Europe (19 specimens) and North America (54 specimens). Toward a natural classification and in light of our phylogenetic results, we propose numerous taxonomic changes inc...
Morphological and molecular analyses of newly collected samples of the rare Kallymenia maculata, described originally from specimens collected during the Siboga Expedition but never recollected, indicated that the species was incorrectly placed in the genus Kallymenia and did not conform to any existing genera. The new genus Rhytimenia is described...
Recent taxonomic research on the bladed Bangiales (Rhodophyta) has revealed that the diversity of this group along the Atlantic coast of the Iberian Peninsula is much greater than previously understood. Species in this group of red algae are a common element in the intertidal marine flora along the shores off the Iberian Peninsula. Between 2009-201...
In this paper we describe Kallymenia crouaniorum Vergés & Le Gall, sp. nov. (Kallymeniaceae), a new marine red alga from the north-eastern Atlantic Ocean. rbcL and LSU sequences of this species, previously misidentified in the field as Kallymenia reniformis, diverged from those of other Kallymenia species by at least 7.5% and 5.2%, respectively. Ka...
The diversity of the bladed species of the red algal order Bangiales from the Iberian Mediterranean shores has been reassessed after a detailed study of this region. Prior to this study, 11 bladed species of Bangiales had been reported from Mediterranean waters: Porphyra atropurpurea, P. cordata, P. coriacea, P. dioica, P. linearis, P. purpurea, P....
The genus Pyropia (Bangiales, Rhodophyta) is represented in the NW Mediterranean by two species, Py. elongata (Kylin)Neefus & J.Brodie and Py. parva Vergés & Sánchez. These bladed Bangiales inhabit the intertidal and the upper sublittoral level, respectively. In this survey we employ laboratory cultures to be able to predict field vertical distribu...
Recent taxonomic research on the bladed Bangiales (Rhodophyta) has pointed out that diversity of this group is underrepresented and we lack thorough knowledge. Species in this group of red algae are a common element in the intertidal marine flora along the shores off the Iberian Peninsula. Between 2009-2011, intensive sampling throughout the Atlant...
The Mediterranean red algal flora is diverse but current knowledge of its diversity is at best fragmentary. Here, a new species of Kallymenia from Croatia is described based on morphological and molecular data. Members of the genus Kallymenia share similar morphology making their generic identification relatively easy, whereas species level identif...
A taxonomic reevaluation of the foliose Bangiales placed in the genus Porphyra from the Balearic Islands, based on the historical and recent collections, has resulted in a new floristic composition of this group. The molecular, morphological, and karyological analysis reveals that for these islands, there are no Porphyra species, and only two membe...
A detailed morphological and molecular survey of bladed and filamentous species of the order Bangiales (Rhodophyta) in the NW Mediterranean Sea, has noticed that two new bladed taxa are present in this area: Clymene sp. and Pyropia sp. These new species grow together with two more members of the same group, Pyropia elongata (Kylin) Neefus & J.Brodi...
Pyropia suborbiculata is a bladed Bangiales originally reported from Asia that has also been recorded as an introduction in Atlantic USA, New Zealand, Vietnam, Canary Islands and Brazil. Here we report for the first time the expansion of its distribution to Europe (Northeastern Atlantic and Mediterranean coasts) on the basis of collections from the...
Recent collection of the red alga Gloiocladia furcata from the north-eastern Atlantic coast of Spain has shown that this species does not only inhabit the Mediterranean as was previously thought. Here we present the first record for the Spanish Atlantic coast and moreover we show that the vegetative and reproductive structures of Atlantic specimens...
In recent years, the number of alien seaweeds reported from the Atlantic European region has increased, but it is predicted that use of molecular techniques will reveal the occurrence of more cryptic introductions. In the course of the taxonomic review of the genus Porphyra in the Iberian Peninsula (Spanish government project CGL2008-00932/BOS), we...
The Mediterranean is an enclosed sea that has undergone a varied geological history, including its isolation around six million years ago during the Messinian crisis, and its definitive re-opening to the Atlantic through the Strait of Gibraltar at the beginning of the Pliocene, around 5.3 million years ago. This relatively recent history is a key f...
The life histories of Predaea ollivieri J. Feldmann and P. pusilla (Berthold) J. Feldmann were studied in vitro. In P. ollivieri, carpospore germination was unipolar, and sporophytes were formed of sparsely branched uniseriate filaments. In P. pusilla, carpospore germination was bipolar, and sporophytes were formed of uniseriate filaments consolida...
Reproductive morphology of the Mediterranean red alga Kallymenia patens is described for the first time, confirming its position in the genus. K. patens is characterized by a non-procarpic female reproductive apparatus, carpogonial branch systems consisting of supporting cells bearing both three-celled carpogonial branches and subsidiary cells that...
Several vegetative and reproductive characters of the Mediterranean red alga Kallymenia lacerata are described here for the first time. K. lacerata is characterized by the following combination of features: laciniate adult blades, outer cortical cells spreading and forming rosettes around cells of the cortical layer underneath, elongated stellate m...
A. VERGES, C. IZQUIERDO AND M. VERLAQUE. 2005. Rhodymemiocolax mediterraneus sp. nov. (Rhodymeniales, Rhodophyta), parasitic on Rhodymenia ardissonei from the western Mediterranean Sea. Phycologia 44: 510-516. Rhodymeniocolax mediterraneus Verges, lzquierdo & Verlaque sp. nov., a sublittoral adelphohemiparasite of Rhodymenia ardissonei from the wes...
We investigated a collection of Nemastoma J. Agardh, nom. cons. (Nemastomatales, Rhodophyta), including the Mediterranean type material of species described by J. Agardh, Kutzing and Ercegovic, and recent specimens from the Mediterranean Sea, Adriatic Sea and northeastern Atlantic Ocean. Based on their habit and vegetative and reproductive structur...
A synoptic key for identifying the Gigartinales, Halymeniales, Hildenbrandiales and Plocamiales from the Western Mediterranean has been prepared in order to facilitate the recognition of these red algae. The orders Gigartinales, with some 69 species grouped in 19 families and 35 genera, Halymeniales, with 13 species grouped in 2 families and 6 gene...
The authors report the geographical distribution, habitat and reproductive phenology of the four species of the genus Kallymenia from Catalonia, Spain: K feldmannii Codomier, K lacerata J. Feldmann, K patens (J. Agardh) Parkinson and K requienii J. Agardh. The records confirm that these species are quite common in the western Mediterranean Sea, but...
The diversity of the bladed species of the red algal order Bangiales from the Iberian Mediterranean shores has been reassessed after a detailed study of this region. Prior to this study, 11 bladed species of Bangiales had been reported from Mediterranean waters: Porphyra atropurpurea, P. cordata, P. coriacea, P. dioica, P. linearis, P. purpurea, P....
