Results 91 to 100 of about 4,495 (224)

Systematics of ‘lithistid’ tetractinellid demosponges from the Tropical Western Atlantic – implications for phylodiversity and bathymetric distribution

, 2019
Background: Among all present demosponges, lithistids represent a polyphyletic group with exceptionally well preserved fossils dating back to the Cambrian.
A. Schuster, S. Pomponi, Andrzej Pisera, P. Cárdenas, M. Kelly, G. Wörheide, D. Erpenbeck   +6 more
semanticscholar   +1 more source

Arrested in Glass: Actin within Sophisticated Architectures of Biosilica in Sponges

Advanced Science, 2022
Actin is a fundamental member of an ancient superfamily of structural intracellular proteins and plays a crucial role in cytoskeleton dynamics, ciliogenesis, phagocytosis, and force generation in both prokaryotes and eukaryotes.
Hermann Ehrlich, Magdalena Luczak, Rustam Ziganshin, Ivan Mikšík, Marcin Wysokowski, Paul Simon, Irena Baranowska‐Bosiacka, Patrycja Kupnicka, Alexander Ereskovsky, Roberta Galli, Sergey Dyshlovoy, Jonas Fischer, Konstantin R. Tabachnick, Iaroslav Petrenko, Teofil Jesionowski, Anna Lubkowska, Marek Figlerowicz, Viatcheslav N. Ivanenko, Adam P. Summers   +18 more
doaj   +1 more source

Revisiting the silicon isotopic signal of sponge skeletons and its implications

Limnology and Oceanography, Volume 70, Issue 9, Page 2480-2495, September 2025.
Abstract This study investigates the relationship between the silicon (Si) isotopic composition of sponge skeletal silica (δ30SibSi) and seawater characteristics in sponge habitats, specifically the concentration of dissolved silicic acid and its Si isotopic signature (δ30SidSi).
Manuel Maldonado, Katharine R. Hendry
wiley   +1 more source

New species from the deep Pacific suggest that carnivorous sponges date back to the Early Jurassic [PDF]

, 2008
Some deep-sea poecilosclerid sponges (Porifera) have developed a carnivorous feeding habit that is very surprising in sponges^1^. As shown by the typical morphology of their spicules, they most probably evolved from "normal sponges" under the ...
Jean Vacelet, Michelle Kelly
core   +1 more source

Shedding Light on the Italian Mesophotic Spongofauna

Journal 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, Marzia Bo, Marco Bertolino, Martina Canessa, Michela Angiolillo, Alessandro Cau, Franco Andaloro, Simonepietro Canese, Silvestro Greco, Giorgio Bavestrello   +9 more
doaj   +1 more source

Long Term Marine Biodiversity Monitoring in Coastal Antarctica: Are Fewer Rare Species Recruiting?

Global Change Biology, Volume 31, Issue 7, July 2025.
Barnes et al. report 21 years of monitoring marine invertebrate recruitment to artificial substrata (settlement panels) with contextual environmental variables at the West Antarctic Peninsula. Traditional measures of recruitment and colonisation, such as density and space occupation (% cover) varied but with no obvious temporal trend.
David K. A. Barnes, Adriana Giles, Pati Glaz, Sean McLoughlin, Alice Clement, Simon A. Morley   +5 more
wiley   +1 more source

Collagens of Poriferan Origin

Marine 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, Marcin Wysokowski, Sonia Żółtowska-Aksamitowska, Iaroslav Petrenko, Teofil Jesionowski   +4 more
doaj   +1 more source

Metazoan Diversity and Its Drivers: An eDNA Survey in the Pacific Gateway of a Changing Arctic Ocean

Environmental DNA, Volume 7, Issue 2, March/April 2025.
In the face of climate change, organisms must adapt or shift their ranges to survive. Our study conducted the first COI marker‐based eDNA survey in the Pacific Gateway of the Arctic Ocean, analyzing seawater samples from the Bering Strait and Chukchi Sea.
Gerlien Verhaegen, Tatsuya Kawakami, Ayla Murray, Akihide Kasai, Charlotte Havermans   +4 more
wiley   +1 more source

Habitat heterogeneity over multiple scales supports dense and diverse megafaunal communities on a northeast Pacific ridge

Limnology and Oceanography, Volume 70, Issue 2, Page 377-392, February 2025.
ABSTRACT Marine environments are highly heterogeneous, varying across scales of a few meters to entire ocean basins. Understanding the relationship between environmental variability and species distribution is essential for area‐based management and conservation.
Fanny Girard, David W. Caress, Jennifer B. Paduan, Linda A. Kuhnz, Steven Y. Litvin, Emma Flattery, Amanda S. Kahn, Andrew DeVogelaere, Erica J. Burton, Christopher Lovera, Eric J. Martin, James P. Barry   +11 more
wiley   +1 more source

Growth Efficiency and Carbon Balance for the Sponge Haliclona oculata [PDF]

, 2009
To obtain more knowledge about carbon requirements for growth by sponges, the growth rate, respiration rate, and clearance rate was measured in situ in Haliclona oculata. We found that only 34% of the particulate carbon pumped through the sponge was used
Marieke Koopmans, Dirk Martens, Rene H. Wijffels   +2 more
core   +2 more sources