Ignacio Bárbara Criado

• Universidade da Coruña

Effective monitoring of non-indigenous seaweeds and combatting their effects relies on a solid confirmation of the non-indigenous status of the respective species. We critically analysed the status of presumed non-indigenous seaweed species reported from the Mediterranean Sea, the Northeast Atlantic Ocean and Macaronesia, resulting in a list of 140...

Background and Aims Kelps are the primary foundation species in temperate subtidal rocky shores worldwide. However, global change is causing their decline with consequences for the organisms that rely on them. An accurate assessment of these consequences may depend on which attributes of the associated community are considered. This study shows tha...

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...

Effective monitoring and combatting the effect of non-indigenous seaweeds relies on a solid confirmation of the non-indigenous status of the species. We critically analysed the status of presumed non-indigenous seaweed species reported from the Mediterranean Sea, the Northeast Atlantic Ocean and Macaronesia, resulting in a list of 140 species whose...

Citation: Pérez-Peris, I.; Navarro-Mayoral, S.; de Esteban, M.C.; Tuya, F.; Peña, V.; Barbara, I.; Neves, P.; Ribeiro, C.; Abreu, A.; Grall, J.; et al. Effect of Depth across a Latitudinal Gradient in the Structure of Rhodolith Seabeds and Associated Biota across the Eastern Atlantic Ocean. Diversity 2023, 15, 103. Abstract: Rhodolith seabeds are '...

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...

Background Syngnathid fishes (Actinopterygii, Syngnathidae) are flagship species strongly associated with seaweed and seagrass habitats. Seahorses and pipefishes are highly vulnerable to anthropogenic and environmental disturbances, but most species are currently Data Deficient according to the IUCN (2019), requiring more biological and ecological...

Background: Syngnathid fishes (Actinopterygii, Syngnathidae) are flagship species strongly associated with seaweed and seagrass habitats. Seahorses and pipefishes are highly vulnerable to anthropogenic and environmental disturbances, but most species are currently Data Deficient according to the IUCN (IUCN, 2019), requiring more biological and ecol...

Background: Syngnathid fishes (Actinopterygii, Syngnathidae) are flagship species highly associated to seaweed and seagrass habitats of marine ecosystems biodiversity. Seahorses and pipefish are highly vulnerable to anthropogenic and environmental disturbances, but most species are currently Data Defficient by IUCN (IUCN, 2019), requiring more biol...

Background: Syngnathid fishes (Actinopterygii, Syngnathidae) are flagship species strongly associated with seaweed and seagrass habitats. Seahorses and pipefishes are highly vulnerable to anthropogenic and environmental disturbances, but most species are currently Data Deficient according to the IUCN (IUCN, 2019), requiring more biological and ecol...

Zostera marina meadows represent an important marine ecosystem in the North temperate region. They are common in the northwestern Spain, but their distribution and biological traits remain poorly studied. Improving the knowledge of eelgrasses and identifying potential impact sources is necessary to implement conservation programs. Distribution, cov...

Canopy-forming seaweeds sustain critical ecosystem services in coastal habitats. Around the world, many of these seaweeds are suffering strong declines, mainly attributed to the progressive increase in sea surface temperature, in combination with other stressors due to current global changes. The southernmost part of the NE Atlantic is among those...

Molecular phylogeny of Eudesme specimens collected from various localities in the Northern Hemisphere using mitochondrial cox1 and cox3 and chloroplast atpB, psaA, psbA and rbcL gene sequences revealed an undescribed species in the genus. In the analyses, three distinct clades (clades 1, 2 and 3) with high statistical supports were recognised. Spec...

Material of Jania J.V.Lamour. with a different morphology from the typical one attributed to J. longifurca Zanardini and J. rubens (L.) J.V.Lamour.—the only species in this habitat in Galicia—has been detected in the maerl beds of Galicia. This morphology consists on: thin intergenicula, an irregular pattern of dichotomies and secondary attachment...

The composition, abundance, and distribution of epiphytic macroalgae living in meadows of Zostera marina L. in the northwestern Iberian Peninsula are here analyzed. We identified 63 species: 40 red algae, 16 brown algae, and 7 green algae. Most of them are classified as filamentous or filiform functional forms, while Pneophyllum fragile Kütz. was t...

Climate-driven range-shifts have shaped extant patterns of diversity, including intra-specific population genetic structure. Studies of ancient marine distributions, inferred using phylogeographic and modeling approaches, have focused strongly on marine forests of brown macroalgae (kelps and fucoids), which occur on temperate rocky reefs and suppor...

Glacial vicariance is regarded as one of the most prevalent drivers of phylogeographic structure and speciation among high-latitude organisms, but direct links between ice advances and range fragmentation have been more difficult to establish in marine than in terrestrial systems. Here we investigate the evolution of largely disjunct (and potential...

Se presenta una puesta al día de los caracteres morfológicos de Jania virgata y su distribución en Galicia y territorios adyacentes. Mediante una revisión bibliográfica y de material de herbario se confirma la presencia de J. virgata en Galicia, con una única cita refrendada por dos pliegos del herbario de Fermín Bescansa, al que hizo referencia es...

During our sampling surveys of the tribes Polysiphonieae and Streblocladieae in Spain and Australia, three previously unrecorded species were collected. Based on molecular and morphological evidence they are proposed as new species. Polysiphonia delicata sp. nov. and Polysiphonia radiata sp. nov. belong to the Polysiphonieae and share the synapomor...

Beds of coralline algal sediment form ecologically and economically important habitats in the North Atlantic. These habitats can occur from the intertidal down to 60 m depth, and they are locally abundant in several countries. Thirteen species of coralline algae form rhodoliths or maerl in this region; Lithothamnion corallioides, L. glaciale, L. to...

DNA barcoding in combination with morpho-anatomical analysis was applied to study the diversity of crustose coralline algae associated to two maerl beds from two protected Atlantic European areas from Brittany and Galicia —France and Spain, respectively—. Given the records of gametophytes of the maerl species Phymatolithon calcareum under crustose...

Este trabajo da a conocer la distribución, extensión, características, biodiversidad y flora asociada de las praderas de Zostera marina en el Parque Nacional Marítimo Terrestre de las Islas Atlánticas de Galicia (PNIAG) y territorios adyacentes. Se han encontrado praderas de Z. marina en los archipiélagos de Sálvora y Cortegada, mientras que la pra...

Available at: http://www.biolveg.uma.es/abm/Volumenes/vol41/vol41.html

Pterosiphonia parasitica is a species of the family Rhodomelaceae that inhabits in the lower intertidal and subtidal of the Atlantic Iberian Peninsula. The first observation of spermatangial branches, procarps and cystocarps in the Iberian Peninsula is reported in this paper.

The genus Cystoseira was described by C. Agardh in 1820, including 37 species, although its taxonomy and nomenclature has suffered many changes since then. The Iberian Peninsula contains 24 species of the genus Cystoseira, but only 6 inhabit in Northern Iberia: C. baccata, C. foeniculacea, C. humilis var. myriophylloides, C. nodicaulis, C. tamarisc...

Coralline red algae (Corallinales sensu lato) are characterized by having cells walls composed of calcium carbonate. They have a worldwide distribution, and occur from the intertidal to 250 m depth. Moreover, their ecological role as ecosystem engineers promote and increase local diversity such as the biogenic habitats known as maerl beds and the M...

Zostera marina is the most widely distributed seagrass, which dominates the northern temperate region. In the Atlantic Iberian Peninsula, Zostera marina is common in wave-protected areas, including a few locations in Portugal and the Cantabrian coast. By contrast, it is much more abundant in Galicia where the convoluted shoreline, with numerous ria...

Access to publication: http://rjb.revistas.csic.es/index.php/rjb/article/view/446/453 Se presenta una revisión del orden Corallinales sensu lato en el Atlántico Ibérico con el objeto de evaluar su estado de conocimiento en comparación con territorios adyacentes (Islas Británicas – Atlántico francés, Macaronesia y el Mediterráneo Ibérico). Tras la r...

The assemblages of Cystoseira exhibit a complex structure, which allows the presence of a large number of vegetal and animal companion species. The Atlantic Iberian Cystoseira assemblages typically inhabits in the subtidal forming the canopy of the community, from wave exposed to sheltered areas, harbouring numerous species over the substrata and a...

Diversity of macroalgal flora in Zostera marina meadows from the northwestern Iberian Peninsula.

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 k...

El catálogo de las algas se ha realizado considerando las costas españolas subdivididas en cinco sectores, acorde a la nomenclatura de la Directiva Marco de Estrategia Marina de la UE, que considera cinco Demarcaciones Marinas: Noratlántica, Sudatlántica, Estrecho-Alborán, Levantino-Balear y Canaria. El catálogo contempla 1500 especies y taxones in...

En 2012 responsables del Ministerio de Agricultura, Alimentación y Medioambiente de España (MAGRAMA) a través de su División para la Protección del Mar, se pusieron en contacto con la Sociedad Española de Ficología (SEF), solicitando su colaboración en la elaboración de la denominada Lista Patrón de las Especies Marinas Presentes en España, element...

The Iberian Peninsula contains 24 specific and infraespecific taxa of the genus Cystoseira, but only 6 inhabit in Northern Iberia: C. baccata, C. foeniculacea, C. humilis var. myriophylloides, C. nodicaulis, C. tamariscifolia, and C. usneoides. The Cystoseira assemblages exhibit a complex structure and stratification that allows the presence of a l...

Phymatolithon lusitanicum is a new maerl species described based on an integrative systematic approach including molecular (COI-5P, psbA) and morphological data obtained from recent collections, as well as comparison of type material from the morphologically and ecologically alike NE Atlantic species P. lamii and P. laevigatum. Molecular analyses i...

Las macroalgas marinas son los principales productores primarios de las zonas rocosas del litoral Atlántico. Las especies dominantes que forman dosel, algas pardas como las Fucales intermareales y las Laminariales sublitorales, así como algas rojas como las del género Gelidium y Chondrus crispus configuran en la Península Ibérica y en las Islas Can...

DNA barcodes and morphological observation were used to evaluate the number of species within the genus Corallina sensu lato in Atlantic Iberia and to identify a set of morphological characters that may discriminate them. Five species were detected: (i) C. officinalis, (ii) C. caespitosa, (iii) Ellisolandia elongata, (iv) Corallina sp. 1, and (v) C...

For the first time, a comprehensive assessment of Mesophyllum species diversity and their distribution in Atlantic Europe and Mediterranean Sea is presented based on molecular (COI-5P, psbA) and morphological data. The distribution ranges were redefined for the four species collected in this study: M. alternans, M. expansum, M. macroblastum and M....

New records and geographical additions to the benthic marine flora of the Atlantic Iberian Peninsula: In this work, we provide new records and geographical distribution data for 22 species (10 Rhodophyta, 9 Ochrophyta and 3 Chlorophyta) of seaweeds inhabiting from the intertidal to the deep subtidal of the Atlantic Iberian. Ulva australis is a new...

Coralline red algae are important habitat builders in coastal waters around the world but their population genetics has been largely overlooked because of a lack of appropriate markers. Here, next generation sequencing was used to identify the first set of microsatellite loci ever developed for a coralline alga, Phymatolithon calcareum, a common bu...

Recent shifts in the distribution and abundance of marine macroalgae in the northern Iberian Peninsula and Canarias in response to climate change

Maerl beds are sensitive biogenic habitats built by an accumulation of loose-lying, non-geniculate coralline algae. While these habitats are considered hot-spots of marine biodiversity, the number and distribution of maerl-forming species is uncertain because homoplasy and plasticity of morphological characters are common. As a result, species disc...

This work presents a taxonomic, floristic and chorological account of the most representative turf-forming species from sand-covered rocks along the Atlantic Iberian Peninsula, including in this Part 2 species belonging to six orders of the Rhodophyta and one of the Phaeophyceae. For each species are provided morphological descriptions, distributio...

Lectotypes for the red algae Polysiphonia schousboei (= Leptosiphonia schousboei) and P. simpliciuscula (= Ophidocladus simpliciusculus) were designated here after the examination of original material housed in the Museum national d'Histoire naturelle de Paris (cryptogamy collections, Herbier National).

The Cantabrian coast is an area of special biogeographical interest because the existence of a marked longitudinal gradient, mainly related to the sea surface temperature (SST) and the intensity and frequency of upwellings. Since the late 19th Century, there is scientific evidence on the existence of fluctuating expansion-retraction periods of cert...

Two non-geniculate coralline red algae (Lithothamnion corallioides and Phymatolithon calcareum) are partially protected under the assumption that they are the main components of maerl beds in Atlantic Europe. However, what we know about the composition of maerl relies mainly on morphology-based identifications that are notoriously difficult due to...

In development since 1996, AlgaeBase (http://www.algaebase.org) is an on-line database providing free access to authoritative taxonomic, distributional and nomenclatural information of more than 135,000 names of species and infraspecific taxa of algae set in the context of a taxonomic hierarchy. The project was initially funded by the Higher Educat...

Maerl beds worldwide face habitat destruction (e.g. from dredging, fishing gear and fish farms), the combined pressures of ocean warming and acidification, and the spread of invasive species. Maerl beds have high conservation status in European legislation, yet their associated flora is poorly known. Here we evaluate the known macroalgal diversity...

Fertile gametangial plants of Phymatolithon calcareum, which are seldom reported in the Atlantic European coasts, were collected as encrusting, epilithic plants in a subtidal maerl bed in Brittany (France). Based on their morphological features, the plants were identified as P. calcareum. This identification was further confirmed by DNA barcodes us...

In recent years (2007–2009), the distribution and associated flora of maerl beds in southern Portugal (Algarve) were investigated by dredging and SCUBA diving (12–30 m depth). The present work provides the first data on the non-coralline crustose flora associated with maerl beds in Portugal. Peyssonnelia bornetii is a new record for Atlantic Europe...

The phylogeny of ligulate and sulfuric-acid containing species of Desmarestia, occurring worldwide from polar to temperate regions, was revised using a multi-genic and polyphasic approach. Sequence data, gametophyte characteristics and sporophyte morphology support reducing a total of 16 taxa to four different species. (1) D. herbacea, containing b...

Sand-covered rocks provide a particular habitat to benthic seaweeds, which must tolerate the stressful conditions imposed by the presence of sediments. Turf assemblages are dominant in this habitat, which is widely distributed along the Atlantic Iberian Peninsula, neverthelss their flora remained poorly known. This work presents a taxonomic, floris...

Calliblepharis hypneoides Díaz-Tapia, Bárbara & Hommersand, sp. nov., is described based on plants collected in sand-covered rocks from southern France to Portugal. Calliblepharis hypneoides is distinguished by a terete thallus, forming an extensive basal system of entangled prostrate axes that bear few irregularly branched upright axes, an inner s...

Morphological and molecular studies were carried out on two Polysiphonia with 6–9 pericentral cells from the Atlantic Iberian Peninsula. A detailed description is provided for P. foetidissima, a poorly known species originally described from the UK that is widespread and abundant in the Iberian Peninsula. Polysiphonia schneideri, originally describ...

Polysiphonia tripinnata, a member of the Rhodomelaceae originally described from the Mediterranean Sea, is newly recorded off the European Atlantic coast. It was collected mostly from sand-covered rocks between the low intertidal zone and the upper subtidal zone of 18 sites from the Iberian Peninsula. Most locations were from the southern Iberian P...

Pseudopolyides furcellarioides gen. et sp. nov. (Gigartinales, Rhodophyta) was described from the Atlantic coasts of the northern Iberian Peninsula based on morphological and molecular evidence. This plant was found growing in the lower intertidal to the upper subtidal of moderately exposed rocky coasts, the bases anchored to rocks and often covere...

Español. Se dan a conocer nuevas localizaciones y datos corológicos para 98 especies (61 Rhodophyta, 22 Ochrophyta, 15 Chlorophyta) de algas bentónicas marinas recolectadas en el intermareal y submareal de más de 80 localidades de las costas atlánticas y cantábricas de la Península Ibérica. Polysiphonia devoniensis, P. fibrata y Zonaria tourneforti...

En este trabajo estudiamos la variabilidad temporal de los céspedes de R. floridula, P. scopulorum y O. simpliciusculus, con objeto de detectar cambios a lo largo del año en la granulometría del sedimento atrapado en los céspedes y en la playa. Paralelamente, analizamos la correlación entre la granulometría del sedimento atrapado dentro de los césp...

En este trabajo estudiamos la composición florística y la cobertura de las especies de los céspedes algales de Galicia y su relación con el grado de exposición al oleaje.

Unlabelled: In this article, a study of the Al(+3) interactions in acidic waters with biomass of different edible seaweeds: brown (Fucus vesiculosus, Saccorhiza polyschides), red (Mastocarpus stellatus, Gelidium sesquipedale, Chondrus crispus), and green (Ulva rigida, Codium tomentosum), has been performed. The influence of both, the initial conce...

We report new records and chorological data for seven French marine algae that make their distribution records more complete. Three species (Erythroglossum lusitanicum, Hildenbrandia occidentalis and Ulva bifrons) are new records for France, two species (Antithamnion hubbsii and Pterocladiella melanoidea) are new records for the French Atlantic coa...

Lampisiphonia iberica gen. et sp. nov. is described on the basis of specimens collected from subtidal rocky bottom habitats on the Atlantic coast of the Iberian Peninsula. The new genus was distinguished by an erect habit, pseudodichotomous branching, and 9-11 pericentral cells. Plants were bright red to brown-red in colour, 3-6 cm high, firm at th...

In this work, we provide new records and geographical distribution data for 98 seaweeds (61 Rhodophyta, 22 Ochrophyta, 15 Chlorophyta) inhabiting more than 80 sites (intertidal and subtidal) of the Atlantic Iberian Peninsula. Polysiphonia devoniensis, P. fibrata y Zonaria tournefortii are new records for Portugal and 5 species (Bonnemaisonia hamife...

Erythroglossum lusitanicum is a foliose, turf-forming member of the Delesseriaceae that colonizes sand-covered intertidal rocks on the Atlantic Iberian Peninsula. We examined (i) the phenology of this alga and (ii) the structure and temporal dynamics of its associated flora at two sites over one year. Species diversity was low in the assemblage, wh...

Marine macroalgae are rarely considered from the point of view of conservation and the assessment of their conservation status is often limited by a lack of appropriate data. The red algae Grateloupia lanceola is a common inhabitant of Atlantic rocky shores along West Africa that also occurs in a small number of enclaves in the north-west Iberian P...

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Mesophyllum sphaericum sp. nov. is described based on spherical maërl individuals (up to 10 cm) collected in a shallow subtidal maërl bed in Galicia (NW Spain). The thalli of these specimens are radially organized, composed of arching tiers of compact medullary filaments. Epithallial cells have flattened to rounded outermost walls, and they occur i...

Sexual structures of Ptilothamnion sphaericum and Pterosiphonia complanata are described for the first time. Spermatangial heads of P. sphaericum are densely clustered in short lateral branchlets, each cell of which bears up to three spermatangial heads. They consist of a stalk cell and 3-4 axial cells bearing a cluster of spermatangial mother cell...

A study of three shallow Atlantic maërl beds (3–6 m depth) in NW Spain (Galicia) sampled beds every 1.5 months for a year. At each study site, temporal variation in the associated flora and two parameters, temperature and photosynthetic photon flux density (PPFD), were recorded in situ and means were calculated for each period. The range of mean pe...

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We studied crustose seaweeds associated with subtidal maërl beds and gravel bottoms in the Galician rías (NW Iberian Peninsula). Each species is described as well as its habitat and occurrence in maërl beds and gravel bottoms. We con-firmed the great crustose species richness associated with European Atlantic maërl beds. We report a new species for...

We studied crustose seaweeds associated with subtidal maërl beds and gravel bottoms in the Galician rías (NW Iberian Peninsula). Each species is described as well as its habitat and occurrence in maërl beds and gravel bottoms. We confirmed the great crustose species richness associated with European Atlantic maërl beds. We report a new species for...

Erythroglossum lusitanicum was originally described from sterile and tetrasporophytic material. The apical organization and the sexual structures have considerable relevance for classification of Delesseriaceae, and these are described here for the first time in this species. The range of morphological variability in some species of the genus Eryth...

In this study, 10 new records of subtidal Rhodophyta are given for the Atlantic coast of the Iberian Peninsula. Most of these species of benthic marine algae are characteristic of temperate regions. Two were known previously only for the Mediterranean Sea (Gelidium bipectinatum and Gloiocladia microspora), and their distribution into the Atlantic O...