Results 61 to 70 of about 790 (166)

Barcoding‐Inferred Biodiversity of Shallow‐Water Indo‐Pacific Demosponges

open access: yesJournal of Biogeography, Volume 53, Issue 3, March 2026.
ABSTRACT Aim The Indo‐Pacific is the world's largest marine biogeographic region. It is characterised by different degrees of connectivity among its subregions and harbours the majority of demosponge species currently known to science. Comparisons between regional sponge faunas have been undertaken in the past, mostly based on morphological species ...
Dirk Erpenbeck   +23 more
wiley   +1 more source

Coralline demosponges ; a geobiological portrait

open access: yes, 2001
The polyphyletic coralline demosponges possess a calcareous basal skeleton of 4 major morphotypes. Each has its own phylogenetic history, with different mechanisms of formation. One extant taxon of each skeletal type has been investigated, and its biochemical (e.g., intracrystalline organic matrix proteins), geochemical (e.g., stable isotopes), and ...
Reitner, Joachim   +3 more
openaire   +2 more sources

Shedding Light on the Italian Mesophotic Spongofauna

open access: yesJournal of Marine Science and Engineering
An analysis of 483 remotely operated vehicle (ROV) dives carried out along the Italian coast on hard substrata at mesophotic depths (40–200 m) allowed an overview of the rich sponge diversity (53 taxa) of the deep continental platform to be obtained for ...
Margherita Toma   +9 more
doaj   +1 more source

Genomic Connectivity and Adaptation Signals of the Freshwater Sponge Ephydatia muelleri Across Its Distribution

open access: yesJournal of Biogeography, Volume 53, Issue 1, January 2026.
ABSTRACT Aim Genetic connectivity and local adaptation were examined across the distribution of the freshwater sponge Ephydatia muelleri. Because it occupies an exceptional breadth of freshwater environments across a broad geographic range, this species offers key insights into biogeographic processes shaping genetic structure and adaptation in inland ...
Laura de la Cruz‐Castillejo   +18 more
wiley   +1 more source

Collagens of Poriferan Origin

open access: yesMarine Drugs, 2018
The biosynthesis, structural diversity, and functionality of collagens of sponge origin are still paradigms and causes of scientific controversy. This review has the ambitious goal of providing thorough and comprehensive coverage of poriferan collagens ...
Hermann Ehrlich   +4 more
doaj   +1 more source

Bacterial precursors and unsaturated long-chain fatty acids are biomarkers of North-Atlantic deep-sea demosponges.

open access: yesPLoS ONE, 2021
Sponges produce distinct fatty acids (FAs) that (potentially) can be used as chemotaxonomic and ecological biomarkers to study endosymbiont-host interactions and the functional ecology of sponges.
Anna de Kluijver   +8 more
doaj   +1 more source

Moving Beyond Morphology: Genomic Insights Into Evolutionary Histories of Haplosclerid Sponges

open access: yesZoologica Scripta, Volume 55, Issue 1, Page 177-194, January 2026.
ABSTRACT Accurate taxonomic identification is essential for defining species boundaries and understanding biodiversity. However, this remains challenging for groups where morphological character evolution is poorly understood or diagnostic traits are absent.
Joëlle van der Sprong   +6 more
wiley   +1 more source

Body Polarity and Mineral Selectivity in the Demosponge Chondrosia reniformis

open access: yesThe Biological Bulletin, 1998
The skeleton of the common Mediterranean demosponge Chondrosia reniformis lacks endogenous spicules; but exogenous siliceous material is selectively incorporated into its collagenous ectosome, strengthening this layer. Nevertheless, the settling of sponge buds during asexual reproduction necessitates an active incorporation of the calcareous substratum
BAVESTRELLO, GIORGIO   +9 more
openaire   +5 more sources

The mitochondrial genomes of sponges provide evidence for multiple invasions by Repetitive Hairpin-forming Elements (RHE)

open access: yesBMC Genomics, 2009
Background The mitochondrial (mt) genomes of sponges possess a variety of features, which appear to be intermediate between those of Eumetazoa and non-metazoan opisthokonts.
Lavrov Dennis V   +3 more
doaj   +1 more source

Why Homoscleromorph Sponges Have Ciliated Epithelia: Evidence for an Ancestral Role in Mucociliary Driven Particle Flux

open access: yesJournal of Experimental Zoology Part B: Molecular and Developmental Evolution, Volume 344, Issue 8, Page 505-516, December 2025.
Epithelia are typically ciliated, except in sponges. Of all Porifera only Homoscleromorphs have motile cilia on their epithelia. Our data highlight the presence of cilia and mucociliary particle transport as a common feature of metazoa and a secondary loss in other sponge lineages.
Veronica L. Price   +9 more
wiley   +1 more source

Home - About - Disclaimer - Privacy