Ethical decision-making of social workers in Spain during COVID-19: Cases and responses.

In this article we address the ethical decision-making processes of social work professionals in Spain during the first wave of COVID-19. We present some of the findings from a broader international research project led by professor Sarah Banks and carried out in collaboration with the The first wave of COVID-19 had a major impact in Spain, hitting harder the most vulnerable groups. In this unprecedented and unexpected context, social workers had to make difficult ethical decisions on fundamental issues such as respecting service-user's autonomy, prioritizing wellbeing, maintaining confidentiality or deciding the fair distribution of the scarce resources.

What Ethical Dilemmas Do Social Workers Face in the Healthcare Area in Spain?

The purpose of the article is to identify the types of ethical dilemmas that Spanish social workers face in the healthcare arena (health centers, hospitals and mental health). A quantitative methodology was chosen using the questionnaire prepared by Eileen J. Ain.

Unique spicules may confound species differentiation: taxonomy and biogeography of Carter, 1874 and two new related genera (Myxillidae: Poecilosclerida) from the Okhotsk Sea.

Sponges are amongst the most difficult 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 the lack of accurate descriptions usually leads to misclassifications. However, species can also remain hidden even when they belong to genera that have particularly characteristic features.

Sponges and Their Microbiomes Show Similar Community Metrics Across Impacted and Well-Preserved Reefs.

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 some sponges and not others under degraded conditions. We characterized the most frequent sponges and their associated bacteria in two close areas (impacted and well-preserved) of Nha Trang Bay (Indo-Pacific).

Multipartner Symbiosis across Biological Domains: Looking at the Eukaryotic Associations from a Microbial Perspective.

Sponges establish tight associations with both micro- and macroorganisms. However, while studies on sponge microbiomes are numerous, nothing is currently known about the microbiomes of sponge-associated polychaetes and their relationships with those of their host sponges. We analyzed the bacterial communities of symbiotic polychaetes ( spp.

Biodiversity loss in a Mediterranean ecosystem due to an extreme warming event unveils the role of an engineering gorgonian species.

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 level is much less documented.

Showcasing the role of seawater in bacteria recruitment and microbiome stability in sponges.

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 restrictive with the definition of the sponge core microbiomes (present in all the replicates), and with the identification of valid biological 16S rRNA gene sequences (100% sequence identity) that belonged to potentially different bacterial taxa. We found a high overlap (>50% relative abundance) between the sponge species core microbiome and the seawater bacterial core in ca.

Description of two new genera (Antarctotetilla, Levantiniella) and a new species of Tetillidae.

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.

-Reproductive strategies of two common sympatric Mediterranean sponges: (Dictyoceratida) and (Poecilosclerida).

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, and belonging to phylogenetically distant groups: Orders Dictyoceratida and Poecilosclerida, respectively. Both sponges are abundant and share habitat in the Mediterranean rocky sublittoral.

Anxiety, hospital fears and conduct and behavioral alterations during pediatric hospitalization.

Introduction: A hospital admission is an experience capable of generating emotional and behavioral alterations at any age. This study pretends to analyze the response of anxiety, fears and/or behavioral alterations in pediatric patients exposed to a conventional non-surgical hospital admission and the existing relationship between these responses and certain modulating variables. Metodology.

Contrasting biological features in morphologically cryptic Mediterranean sponges.

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 confound ecological studies by underestimating biodiversity.

Redescription and establishment of a holotype and three paratypes for the species sp. nov.

Background: In a recent paper, we described a new sponge species named 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 cannot be considered available according to ICZN regulations until a holotype is designated.

Molecular phylogenies confirm the presence of two cryptic species in the Mediterranean and reveal the polyphyly of the genera and (Demospongiae: Poecilosclerida).

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. is a sponge genus (Family Hymedesmiidae, Order Poecilosclerida) with four formally described species, from which only has been recorded in the Atlanto-Mediterranean basin, on shallow to 80 m deep bottoms. Contrasting biological features between shallow and deep individuals of suggested larger genetic differences than those expected between sponge populations.

Endosymbiotic calcifying bacteria across sponge species and oceans.

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 prompted speculation on the possible role of intracellular bacteria in the evolution of the skeleton in early animals. To gain insight into this purportedly ancestral symbiosis, we investigated the presence of symbiotic bacteria in Mediterranean and Caribbean sponges.

Spatio-temporal monitoring of deep-sea communities using metabarcoding of sediment DNA and RNA.

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 different seasons.

Correction: Phylogenetic Reassessment of Antarctic Tetillidae (Demospongiae, Tetractinellida) Reveals New Genera and Genetic Similarity among Morphologically Distinct Species.

[This corrects the article DOI: 10.1371/journal.pone.

Phylogenetic Reassessment of Antarctic Tetillidae (Demospongiae, Tetractinellida) Reveals New Genera and Genetic Similarity among Morphologically Distinct Species.

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 some poorly resolved nodes and to confirm the monophyly of previously identified clades.

High genetic diversity, phenotypic plasticity, and invasive potential of a recently introduced calcareous sponge, fast spreading across the Atlanto-Mediterranean basin.

Sponges are considered poor invaders, and no genetic studies on introduced sponges have been performed up to now. 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 and at exploring signs of local phenotypic adaptation, to gain insight on the species invasive potential.

Snapshot of a Bacterial Microbiome Shift during the Early Symptoms of a Massive Sponge Die-Off in the Western Mediterranean.

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-related mass sponge die-offs were associated with or preceded by an early unbalanced bacterial microbiome in the sponge tissues.

Deep-Sea, Deep-Sequencing: Metabarcoding Extracellular DNA from Sediments of Marine Canyons.

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 targeting a short eukaryotic 18S sequence (ca.

Similar sponge-associated bacteria can be acquired via both vertical and horizontal transmission.

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 the microbiota in sympatric sponges that have previously been reported to acquire bacteria via either vertical (Corticium candelabrum and Crambe crambe) or horizontal transmission (Petrosia ficiformis).

Removing environmental sources of variation to gain insight on symbionts vs. transient microbes in high and low microbial abundance sponges.

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 environmentally caused differences between host species, we sampled all the sponge species present in an isolated small rocky area in a single dive.