Results 31 to 40 of about 1,141 (179)

Dinoflagellate cysts production, excystment and transport in the upwelling off Cape Blanc (NW Africa)

open access: yesFrontiers in Marine Science, 2022
To extend the understanding of dinoflagellate cysts production, excystment and vertical/lateral transport in the water column, we compared upper water cyst export production with cysts associations and concentrations in the subsurface nepheloid layer ...
Karin A. F. Zonneveld   +6 more
doaj   +1 more source

Uncovering a new Scrippsiella species from the Black Sea: Scrippsiella phycobiana sp. nov. (Thoracosphaerales, Dinophyceae)

open access: yesPhycological Research, EarlyView.
SUMMARY The dinophyte genus Scrippsiella is a common and ecologically important component of coastal microplankton communities, yet its species diversity in the Black Sea remains insufficiently resolved due to morphological similarity among taxa and the scarcity of integrative taxonomic studies. Here, we describe Scrippsiella phycobiana sp. nov., a new
Urban Tillmann, Nina Dzhembekova
wiley   +1 more source

Multi‐proxy sequence stratigraphy of a mixed carbonate–siliciclastic shelf across the Jurassic–Cretaceous transition

open access: yesThe Depositional Record, Volume 12, Issue 4, September 2026.
An integrated facies, MS and XRF‐based approach applied to the Tithonian–Berriasian Sidi Khalif Formation (central Tunisia) resolves five Tithonian and eight Berriasian third‐order sequences, showing how mixed carbonate–siliciclastic shelves record coupled eustatic, climatic and tectonic controls and providing a transferable template for similar mud ...
Hamdi Omar, Adnene Lafi, Chokri Yaich
wiley   +1 more source

Sedimentary Environmental Evolution of the Western Taiwan Shoal Area since the Late Pleistocene

open access: yesJournal of Marine Science and Engineering, 2021
A new pollen analysis and major and trace element contents were conducted on a 40 m long gravity core recovered from the Taiwan Shoal (sand ridges), south of the Taiwan Strait, beginning in the Late Pleistocene.
Chipeng He   +7 more
doaj   +1 more source

Metatranscriptomics analysis of silicon transporters highlights underappreciated contributors to silica cycling in the Baltic Sea

open access: yesLimnology and Oceanography Letters, Volume 11, Issue 5, September 2026.
Abstract The biotic component of the marine silica cycle strongly influences global biogeochemical cycling. Active uptake of dissolved silicic acid (dSi) occurs via silicon transporters (SITs), first characterized in diatoms but widely distributed in eukaryotes. Studying SITs and SIT‐like (SIT‐L) gene transcripts provides insights into the dynamics and
Yelena Churakova   +7 more
wiley   +1 more source

Paleocene – Late Oligocene dinoflagellate cysts biostratigraphy, onshore Niger Delta

open access: yesGeosystems and Geoenvironment
A new biostratigraphic biozonation for the Paleocene to Late Oligocene succession of the onshore Niger Delta has been developed based on the identification of significant stratigraphic dinoflagellate cyst events.
Festus Ojenabor   +2 more
doaj   +1 more source

Paleogene dinoflagellate cysts and thermal maturity from Pabdeh Formation ( Zagros basin, west of Iran)

open access: yesJournal of Applied Sciences and Environmental Management, 2015
Palynological investigation on 132 samples from the 428m thick outcrop section of Late Paleocene to Early  Oligocene of the Pabdeh Formation in southwestern Iran yielded 55 species of dinoflagellate cysts and allowed  establishment of seven biozones ...
AA Jafar Nezhad   +3 more
doaj   +1 more source

Exploration of Overlooked Aduncodinium‐Like (Pfiesteriaceae, Dinophyceae) Diversity

open access: yesJournal of Eukaryotic Microbiology, Volume 73, Issue 5, September/October 2026.
ABSTRACT The dinoflagellate genus Aduncodinium was erected to encompass Katodinium glandula, belonging to the family Pfiesteriaceae. Other described species, like K. asymmetricum, show Aduncodinium‐like characters and probably belong to this genus. These two species are commonly reported in the literature.
Albert Reñé   +4 more
wiley   +1 more source

The Distribution and Diversity of Dinoflagellate Cysts in Sediments of Gwatar Bay (Northeast Gulf of Oman)

open access: yes‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2015
Most dinoflagellate produce resting cysts during their sexual lifecycle as well as under unfavorable environmental conditions and from water column settle in the sediments substratum. The evaluation of diversity and distribution of dinoflagellate cysts
G. Attaran-Fariman email ; A. Raisi
doaj  

Physico-chemical and biological factors influencing dinoflagellate cyst production in the Cariaco Basin [PDF]

open access: yesBiogeosciences, 2018
We present a 2.5-year-long sediment trap record of dinoflagellate cyst production in the Cariaco Basin, off Venezuela (southern Caribbean Sea). The site lies under the influence of wind-driven, seasonal upwelling which promotes high levels of primary ...
M. Bringué   +8 more
doaj   +1 more source

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