Results 11 to 20 of about 790 (166)

Identification and Current Palaeobiological Understanding of “Keratosa”-Type Nonspicular Demosponge Fossils in Carbonates: With a New Example from the Lowermost Triassic, Armenia [PDF]

open access: yesLife, 2022
Structures similar to fossilized nonspicular demosponges have been reported in carbonates throughout the Phanerozoic and recently in rocks dating back to 890 Ma ago.
Cui Luo   +4 more
doaj   +2 more sources

Miocene sponge assemblages in the face of the Messinian Salinity Crisis—new data from the Atlanto-Mediterranean seaway [PDF]

open access: yesPeerJ, 2023
The Messinian Salinity Crisis is considered as one of the most influential Cenozoic events that impacted negatively on the benthic fauna of the Mediterranean area.
Magdalena Łukowiak   +4 more
doaj   +3 more sources

Sex Determination in Sponges [PDF]

open access: yesMolecular Reproduction and Development, Volume 93, Issue 6, June 2026.
ABSTRACT Sex determination in Porifera remains one of the least understood aspects of early metazoan biology despite the group's key phylogenetic position. Sponges display exceptional diversity in sexual systems—ranging from stable gonochorism to sequential hermaphroditism and sex reversal—yet lack morphological dimorphism and any discrete gonadal ...
Jose M. Lorente‐Sorolla, Ana Riesgo
wiley   +2 more sources

Respiration kinetics and allometric scaling in the demosponge Halichondria panicea [PDF]

open access: yesBMC Ecology and Evolution, 2023
AbstractBackground:The aquiferous system in sponges represents one of the simplest circulatory systems used by animals for the internal uptake and distribution of oxygen and metabolic substrates. Its modular organization enables sponges to metabolically scale with size differently than animals with an internal circulatory system.
Kumala, Lars; id_orcid 0000-0002-5160-781X   +2 more
openaire   +5 more sources

Transcriptomic Insights Into the Immune Repertoire of an Antarctic Sponge [PDF]

open access: yesEcology and Evolution, Volume 15, Issue 12, December 2025.
Antarctic marine sponges are essential components of the benthic fauna, playing a crucial role in structuring this ecosystem through their own biological activities and their symbiotic relationships with diverse microorganisms. Yet, the transcriptional repertoire and the immune responses associated with interactions with microorganisms in this unique ...
Leslie K. Daille   +3 more
wiley   +2 more sources

A global dataset of demosponge distribution records [PDF]

open access: yesData in Brief
Biodiversity information in the form of species occurrence records is key for monitoring and predicting current and future biodiversity patterns, as well as for guiding conservation and management strategies. However, the reliability and accuracy of this information are frequently undermined by taxonomic and spatial errors.
Vafeiadou, Ariadni   +2 more
openaire   +5 more sources

Species-specific community structure in the microbiomes and eukaryotic communities associated with Mediterranean golf ball sponges [PDF]

open access: yesPeerJ
Background Sponges harbor complex and diverse microbiomes that contribute to the host’s fitness and, ultimately, the health of the ecosystems sponges inhabit.
Natalie Lewis   +5 more
doaj   +3 more sources

Extreme phenotypic plasticity in metabolic physiology of Antarctic Demosponges [PDF]

open access: yesFrontiers in Ecology and Evolution, 2016
Seasonal measurements of the metabolic physiology of four Antarctic demosponges and their associated assemblages, maintained in a flow through aquarium facility, demonstrated one of the largest differences in seasonal strategies between species and their
Simon Anthony Morley   +5 more
doaj   +4 more sources

Post‐Embryonic Development and Formation of the Heterocoelic Aquiferous System in Two Species of Calcareous Sponges (Calcarea, Porifera) [PDF]

open access: yesMolecular Reproduction and Development, Volume 92, Issue 10, October 2025.
ABSTRACT We characterized the morphogenetic processes of larval metamorphosis and the development of the olynthus and heterocoelic aquiferous system (AS) in Sycettusa hastifera (syconoid) and Paraleucilla magna (leuconoid) (Porifera, Calcarea). Metamorphosis and development up to the olynthus were similar in both species.
Emilio Lanna, Michelle Klautau
wiley   +2 more sources

Two Demosponges as Promising Bioremediators of a Potential Pathogenic Vibrio [PDF]

open access: yesBiology
With more than 9600 valid species worldwide [...]
Joseba Aguilo-Arce   +5 more
doaj   +2 more sources

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