Results 241 to 250 of about 52,221 (298)

Untargeted Metabolomics Reveals Seasonal and Tissue‐Specific Metabolic Shifts in Holothuria cinerascens

Chemistry &Biodiversity, Volume 23, Issue 2, February 2026.
Untargeted metabolic profiling of three body tissues from Holothuria cinerascens in South Africa using 1H‐NMR and UPLC–QTOF–MS revealed distinct tissue‐specific and seasonal metabolic variations, with the body wall and gut/mesentery exhibiting high metabolite diversity.
Cassandra Upton, Gerhard Prinsloo, Paul Steenkamp, Moses Okpeku   +3 more
wiley   +1 more source

New Compounds From the Deep‐sea Sponge Mycale lingua

Chemistry &Biodiversity, Volume 23, Issue 2, February 2026.
The focus of this study is the scarcely investigated sponge Mycale lingua, found commonly in the North Atlantic Ocean. In total, four compounds are isolated and characterised from three combined M. lingua individuals. Structures are fully elucidated through HR‐LCMS and NMR spectroscopy (1H, COSY, HSQC, HMBC).
H. Poppy Clark, David Horsley, Amanda Serpell‐Stevens, Tammy Horton, Ann I. Larsson, Emmanuel Tope Oluwabusola, Rainer Ebel, Laurence H. De Clippele, Marcel Jaspars   +8 more
wiley   +1 more source

Sediment‐stressed reefs over the past 420 Myr

The Depositional Record, Volume 12, Issue 1, February 2026.
In order to fully elucidate the relationship between siliciclastic sedimentation and reef development, there needs to be a significant step change in how we record ancient and recent reefs. Only through the collection of constrained quantitative data, we can progress beyond the largely conjectural associations postulated for many ancient reefal systems.
Tanja Unger, Stephen W. Lokier, Markus Aretz, Matthieu Saillol, Adrian Immenhauser   +4 more
wiley   +1 more source

Carbonate sedimentology: An evolved discipline

The Depositional Record, Volume 12, Issue 1, February 2026.
Abstract Although admired and examined since antiquity, carbonate sediment and rock research really began with Charles Darwin who, during a discovery phase, studied, documented and interpreted their nature in the mid‐19th century. The modern discipline, however, really began after World War II and evolved in two distinct phases.
Noel P. James, Peir K. Pufahl
wiley   +1 more source

Organoclay interaction response to sedimentary environment and sources in Paleogene shales from the Nanpu Sag: Insights for organic matter accumulation mechanism

The Depositional Record, Volume 12, Issue 1, February 2026.
The deep paleo‐lake, characterised by low energy and moderate salinity, facilitated the input of fine‐grained minerals and the development of aquatic organic matter. Under the combined influence of the sedimentary environment and material source, mineral‐bound organic matter was formed, which played a crucial role in the enrichment of organic matter ...
Rusi Zuo, Jingong Cai, Wei Duan, Xiang Zeng, Jinyi He, Chuan Cai, Qianyou Wang   +6 more
wiley   +1 more source

Hydrothermal dolomitisation of a deep‐water bioherm isolated in a non‐dolomitised intraplatform basin within the Norian Dolomia Principale (Southern Alps, northern Italy)

The Depositional Record, Volume 12, Issue 1, February 2026.
We propose that one of the largest known bioconstructions (the Monte Zenone bioherm) in the Southern Alps, northern Italy, and its growth on a tilted and drowned platform block of the Norian Dolomia Principale was controlled by hydrothermal dolomitisation from fault‐controlled fluids during the Late Triassic–Early Jurassic rifting phase. Dolomitisation
Martin Müller, Stefano M. Bernasconi, Vincenzo Picotti, Jordon D. Hemingway   +3 more
wiley   +1 more source

Genomic Resources for Imperiled Caribbean Reef‐Forming Corals (Hexacorallia: Scleractinia): Complete Mitochondrial Genomes of Dichocoenia stokesii, Diploria labyrinthiformis, Oculina patagonica, and Stephanocoenia intersepta

Ecology and Evolution, Volume 16, Issue 2, February 2026.
Mitochondrial genomes of imperiled Caribbean corals are sequenced. These genomic resources will support conservation initiatives. ABSTRACT Coral reefs provide a wide variety of services essential to both marine ecosystems and human societies yet reef‐forming corals are currently facing a multitude of global and local environmental stressors.
Katrina Zabransky, William Vuong, Stephanie M. Rosales, J. Antonio Baeza   +3 more
wiley   +1 more source

Population Structure and Genetic Diversity Analyses Reveal Isolation That May Imperil the Northernmost Colony of the Endangered Australian Sea Lion

Ecology and Evolution, Volume 16, Issue 2, February 2026.
Rapid warming of marine environments is threatening ecosystems, especially species at the edge of their range. This study analysed the genetic structure and diversity of Australian sea lion populations and found the northernmost population to be highly isolated with extremely low genetic variation.
Vanessa Morris, Anthony Chariton, Robert Harcourt, Catherine E. Grueber, Isabelle Charrier, Holly Raudino, Kelly Waples, Roger Kirkwood, Simon D. Goldsworthy, Benjamin J. Pitcher   +9 more
wiley   +1 more source

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Cultivation of Marine Sponges

Marine Biotechnology, 1999
There is increasing interest in biotechnological production of marine sponge biomass owing to the discovery of many commercially important secondary metabolites in this group of animals. In this article, different approaches to producing sponge biomass are reviewed, and several factors that possibly influence culture success are evaluated.
Osinga, R., Tramper, J., Wijffels, R.H.
openaire   +2 more sources

Haemagglutinins from Marine Sponges

Vox Sanguinis, 1968
Summary. Two species of marine sponge, Cliona celata and Axinella sp. produce haemagglutinins and a third species, Tethya aurantium produces a haemolysin. A crude Axinella sp. preparation agglutinates goose erythrocytes at 0.5 μg/ml. The two haemagglutinins differ from each other in their relative activities against erythrocytes from a range of ...
R Y, Dodd, A P, MacLennan, D C, Hawkins
openaire   +2 more sources