Maria J. Uriz

Maria J. Uriz
Spanish National Research Council | CSIC · Center for Advanced Studies of Blanes

PhD

About

231
Publications
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Publications

Publications (231)
Article
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Sponges are amongst the most diffi cult benthic taxa to properly identify, which has led to a prevalence of cryptic species in several sponge genera, especially in those with simple skeletons. This is particularly true for sponges living in remote or hardly accessible environments, such as the deep-sea, as the inaccessibility of their habitat and th...
Article
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Cold-water coral reefs (CWC) are known to be biodiversity hotspots, however, the sponge assemblages found to dwell within these habitats haven not been studied in depth to date in the Mediterranean Sea. The present article provides the first insight on the associated sponge fauna of the recently discovered CWC communities on the Catalan Margin and,...
Article
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Crimean-Congo haemorrhagic fever (CCHF) is a widely distributed tick-borne disease. In Spain, the disease has emerged as outbreak associated with high-risk exposures. Our goal was to evaluate the prevalence of antibodies against the CCHF virus (CCHFV) in high-risk contacts. A cross-sectional study was conducted. Three hundred eighty-six high-risk c...
Article
Cold-water corals (CWC) are known to be deep-sea biodiversity hotspots, yet there is still a huge knowledge gap regarding their associated fauna. As so, CWC ecosystems pose as a perfect environment for the discovery of new species. In this context two new species of Hamigera (Demospongiae) have been recorded associated with CWC in antipodal parts o...
Article
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Archaea is a poorly studied domain associated with sponges. Many questions that have been addressed for bacteria still remain largely unknown for archaea. In this study, we analyzed the archaeal communities of 17 tropical sponge species from Nha Trang Bay (Vietnam) using archaea specific primers. We recorded patterns of diversity and spatial stabil...
Article
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Sponge diversity has been reported to decrease from well-preserved to polluted environments, but whether diversity and intra-species variation of their associated microbiomes also change as function of environmental quality remains unknown. Our study aimed to assess whether microbiome composition and structure are related to the proliferation of so...
Article
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The non-indigenous and invasive calcareous sponge Paraleucilla magna Klautau, Monteiro & Borojevic, 2004 has been detected for the first time on the Algerian coast. The species has been recorded at high abundance in Algiers Port (Algiers) and in Pisan Island (Béjaïa) during spring 2018. It was present from 2 m to 20 m of depth at the community of s...
Article
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The symbiotic lifestyle represents a fundamental cryptic contribution to the diversity of marine ecosystems. Sponges are ideal targets to improve understanding the symbiotic relationships from evolutionary and ecological points of view, because they are the most ancient metazoans on earth, are ubiquitous in the marine benthos, and establish complex...
Data
Supplementary material 2. Size structure characteristics of the studied species (only transects were its presence is over 30 individuals). Morphometric parameters include: height, width, perimeter (when applicable), plus standard deviation (SD) and skewness and kourtosis.
Data
Supplementary material 1. - Expanded transects information. Transects correspond numerically with those in Fig. 1.
Article
Full-text available
Stochastic perturbations can trigger major ecosystem shifts. Marine systems have been severely affected in recent years by mass mortality events related to positive thermal anomalies. Although the immediate effects in the species demography affected by mortality events are well known, information on the mid- to long-term effects at the community le...
Article
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Antarctic bottoms harbor stable, benthic communities, subjected to low temperatures. Environmental stability may promote the asexual (clonal) reproduction of sponges to maintain adapted genotypes to those particular conditions. Stylocordyla chupachups forms patchy populations across the Antarctic continental shelf. Individuals are mostly similar in...
Article
Nowadays, there is still a huge lack of knowledge regarding the morphology and size structure of sponge populations and their possible ecological implications. This study assesses, by means of quantitative analyses of video transects and morphometric analyses on still photographs, the geographical, bathymetrical and sizestructure distribution of th...
Article
Full-text available
The non-indigenous and invasive calcareous sponge Paraleucilla magna Klautau, Monteiro & Borojevic, 2004 has been detected for the first time on the Algerian coast. Anthropogenic activities such as aquaculture farms or shipping traffic might be important vectors or act as stepping-stones in its further expansion. Additional recording of the species...
Article
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We studied the core bacterial communities of 19 sponge species from Nha Trang Bay (Central Vietnam), with particular emphasis on the contribution of planktonic seawater bacteria to the sponge core microbiomes. To ensure consistent sponge-microbe associations and accurate identification of planktonic bacteria transmitted from seawater, we were very...
Conference Paper
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Knowledge about sponges inhabiting cold-water coral reefs in the Atlanto-Mediterranean region has steadily increased in the past years, yet our knowledge about their diversity is still scarce. In the present work, we describe the sponge diversity associated with Madrepora oculata Linnaeus, 1758. Several fragments of this coral from the Blanes Canyo...
Article
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Despite their abundance in benthic ecosystems, life cycles and reproductive features of most sponge species remain unknown. We have studied the main reproductive features of two demosponges, Dysidea avara and Phorbas tenacior, belonging to phylogenetically distant groups: Orders Dictyoceratida and Poecilosclerida, respectively. Both sponges are abu...
Data
Cross correlation plots. The correlation of total reproductive investment (as sum of the relative areas of reproductive structures) with temperature is indicated at time lags of one month (A) Dysidea avara; (B) Phorbas tenacior. The red lines indicate the boundaries of significant (at p = 0.05) correlation coefficient values.
Data
Cross correlation plots. The correlation of total reproductive effort (as sum of the relative areas of reproductive structures) with photoperiod (measured as daylength) is indicated at time lags of one month (A) Dysidea avara; (B) Phorbas tenacior. The red lines indicate the boundaries of significant (at p = 0.05) correlation coefficient values.
Data
Source data of the different variables measured in the two sponge species Percentage of individuals in reproduction (%), Relative area of the sponge sections occupied by reproductive elements (%), number of reproductive elements per surface area (number/mm2), diameter of reproductive elements (µm).
Article
Tetillidae is a sponge family distributed all over the world but with some genera apparently endemic from the Antarctic and Subantarctic (the “Antarctic clade”). Species identification results tricky due to the similarities of their morphological characters. However, molecular phylogenies have helped to resolve the family taxonomy. The last phyloge...
Data
Supplementary material for: Santín, A., Grinyó, J., Ambroso, S., Uriz, M. J., Gori, A., Dominguez-Carrió, C., & Gili, J. M. (2018). Sponge assemblages on the deep Mediterranean continental shelf and slope (Menorca Channel, Western Mediterranean Sea). Deep Sea Research Part I: Oceanographic Research Papers, 131, 75-86. Including 1) list of station...
Article
Sponge assemblages on continental shelves and slopes around the world have been known about for centuries. However, due to limitations of the traditional sampling systems, data about individual sponge species rather than assemblages have been reported. This study characterizes sponge assemblages over a wide bathymetric range (~50–350 m depth) and c...
Article
Full-text available
Sponges are key organisms in the marine benthos where they play essential roles in ecological processes such as creating new niches, competition for resources, and organic matter recycling. Despite the increasing number of taxonomical studies, many sponge species remain hidden, whether unnoticed or cryptic. The occurrence of cryptic species may con...
Data
Raw data of H. mediterranea growth rates and mean area throughout the period of study
Data
Raw data of environmental factors measured in the H. mediterranea habitat
Data
Raw data of H. columella growth rates and mean area throughout the period of study
Data
Raw data of environmental factors measured in the H. columella habitat
Presentation
Full-text available
The existence of sponge assemblages in continental shelves and slopes has been known for centuries; however, due to sampling limitations associated to the traditional sampling systems, individual sponge species rather than assemblages were mainly reported. The current study characterizes sponge assemblages over a large geographic area and bathymetr...
Article
Full-text available
Background In a recent paper, we described a new sponge species named Hemimycale mediterranea Uriz, Garate & Agell, 2017. However, we failed to designate a holotype and a type locality, as required by the International Commission on Zoological Nomenclature (ICZN). Although the validity of the previous conclusions remains unchanged, the species name...
Article
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Background Sponges are particularly prone to hiding cryptic species as their paradigmatic plasticity often favors species phenotypic convergence as a result of adaptation to similar habitat conditions. Hemimycale is a sponge genus (Family Hymedesmiidae, Order Poecilosclerida) with four formally described species, from which only Hemimycale columell...
Data
Phylogenetic tree using the 28S rRNA (D3–D5 partition). BI, NJ and ML gave congruent topologies. Posterior probability, neighbor joining and maximum likelihood supporting values are at the base of clades.
Data
Phylogenetic tree using the COI (M1–M6 partition). BI, NJ and ML gave the same topologies. Posterior probability, neighbor joining and maximum likelihood supporting values are at the base of clades.
Data
New sequences used in the study. 18S, 28S, and COI partitions used in the phylogenetic study and deposited at GenBank.
Data
Phylogenetic tree using the 18S rRNA partition. BI, NJ and ML gave almost the same topologies. The two individuals of H. arabica that appeared in unresolved positions under BI and ML formed a poorly supported (75%) clade in the tree under the NJ criterion (not shown). Posterior probability, neighbor joining and maximum likelihood supporting values...
Article
Full-text available
From an evolutionary point of view, sponges are ideal targets to study marine symbioses as they are the most ancient living metazoans and harbour highly diverse microbial communities. A recently discovered association between the sponge Hemimycale columella and an intracellular bacterium that generates large amounts of calcite spherules has prompte...
Article
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We assessed spatio-temporal patterns of diversity in deep-sea sediment communities using metabarcoding. We chose a recently developed eukaryotic marker based on the v7 region of the 18S rRNA gene. Our study was performed in a submarine canyon and its adjacent slope in the Northwestern Mediterranean Sea, sampled along a depth gradient at two differe...
Article
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Species of Tetillidae are distributed worldwide. However, some genera are unresolved and only a few genera and species of this family have been described from the Antarctic. The incorporation of 25 new COI and 18S sequences of Antarctic Tetillidae to those used recently for assessing the genera phylogeny, has allowed us to improve the resolution of...
Data
The different parts of the predicted secondary structures (V4 region of 18S) are encircled and numbered. (PDF)
Data
Original and revised identifications of Tetillidae voucher specimens from previous studies (Cárdenas et al. 2011, Szitenberg et al. 2010, Szitenberg et al. 2013) after morphological re-examination. Localities, depths, and Genbank accession numbers of the corresponding sequences are also listed. QMG, Queensland Museum, Brisbane, Australia; NIWA, Nat...
Data
Morphological data matrix (including secondary structure shapes of the 18S V4 variable region) used for the maximum parsimony phylogeny. (PDF)
Article
Full-text available
Ocean warming is affecting marine benthic ecosystems through mass mortality events that involve marine invertebrates, in particular bivalves, corals, and sponges. Among these events, extensive die-offs of Ircinia fasciculata sponges have been recurrently reported in western Mediterranean. The goal of our study was to test whether the temperature-re...
Article
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Sponges are considered poor invaders, and no genetic studies on introduced sponges have been performed up to now. Paraleucilla magna is the first calcareous sponge introduced to the Mediterranean and Northeastern Atlantic. The study aimed at investigating the genetic makeup and connectivity of the introduced populations of P. magna and at exploring...
Article
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Acknowledgements Blanquer A, Uriz MJ, Agell G (2008) Hidden diversity in sympatric sponges: adjusting life-history dynamics to share substrate. Mar Ecol Prog Ser 371:109-115. De Caralt S, Uriz MJ, Wijffels RH (2008) Grazing, differential size-class dynamics and survival of the Mediterranean sponge Corticium candelabrum. Mar Ecol Prog Ser 360:97–106...
Conference Paper
Full-text available
Acknowledgements 1) Wilkinson, C. R. 1984. Inmunological evidences for the Precambrian origin of bacterial symbioses in marine sponges. Proc. R. Soc. Lond. B 220: 509–517. 2) Uriz MJ, Agell,G, Blanquer A, Turon X, Casamayor EO (2012) Endosymbiotic calcifying bacteria: a new cue to the origin of calcification in Metazoa?. Evolution. Doi:10.1111/j.15...
Article
Acknowledgements Helmuth B., Kingsolver JG., and Carrington E. (2005) Biophysics, Physiological ecology and climate change: Does mechanism matter? Annual review Physiology 67: 177-201 doi:10.1146/annurev.physiol.67.040403.105027 Peck LS., Clark MS., Morley SA., Massey A., and Rossetti H. (2009) Animal temperature limits and ecological relevance: e...
Article
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Marine sediments are home to one of the richest species pools on Earth, but logistics and a dearth of taxonomic work-force hinders the knowledge of their biodiversity. We characterized α- and β-diversity of deep-sea assemblages from submarine canyons in the western Mediterranean using an environmental DNA metabarcoding. We used a new primer set tar...
Data
File database.txt This file presents filtered data found in the experiments with the 18S_allshorts primers. It contains the number of occurrences of each MOTU in the different samples, as well as different columns related to the taxonomic identification of the MOTUs and the representative sequences of them The sequences have been generated by the I...
Article
Using next-generation sequencing technology, we designed a pool of microsatellite primers and amplified them in 2 physically isolated populations of the Atlanto-Mediterranean sponge Hemimycale columella, which exhibits particular evolutionary, biological, and ecological features. The species has contrasting life cycles in shallow and relatively dee...
Article
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Benthic sessile organisms in general, and sponges in particular, have developed an array of defense mechanisms to survive in crowded, resource and/or space-limited environments. Indeed, various defense mechanisms may converge in sponges to accomplish a defensive function in an additive or synergetic way, or to operate at different times during the...
Article
Marine sponges host diverse communities of microorganisms that are often vertically transmitted from mother to oocyte or embryo. Horizontal transmission has often been proposed to co-occur in marine sponges, but the mechanism is poorly understood. To assess the impact of the mode of transmission on the microbial assemblages of sponges, we analysed...
Article
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Exploration and scientific research have been done by Grup Nord de Mallorca during the years 2011, 2012 and 2013 representing a total of 90 days of dives. The cave, with a general SW-NE trend, shows three collapse structures that give way to the entrance of the system. With a total length of 4100 m, and 36 m of maximum difference in height, attain...
Presentation
Next generation sequencing (NGS) has become a powerful tool to generate valuable genomic and transcriptomic data in non-model animals in recent years. The new cost-effective ways to obtain genomic and transcriptomic libraries have been added to the development of new bioinformatic tools for de novo assembly and analysis in absence of a reference ge...
Article
In this study, we pursue unravelling the bacterial communities of 26 sponges, belonging to several taxonomical orders, and comprising low microbial abundance (LMA) and high microbial abundance (HMA) representatives. Particularly, we searched for species-specific bacteria, which could be considered as symbionts. To reduce temporal and spatial enviro...
Article
Sponges can be dominant organisms in many marine and freshwater habitats where they play essential ecological roles. They also represent a key group to address important questions in early metazoan evolution. Recent approaches for improving knowledge on sponge biological and ecological functions as well as on animal evolution have focused on the ge...