Results 11 to 20 of about 103 (71)

Tropics to the Poles: A Snapshot of Coastal Eukaryotic Marine Microalgal Diversity Across Five Ecoregions. [PDF]

Mol Ecol
ABSTRACT Eukaryotic microalgae are key organisms in marine environments, contributing to essential nutrient and biogeochemical cycles. Climate change is already causing shifts in the composition and diversity of microalgal assemblages, with coastal ecosystems experiencing increased pressure.
Stuart J, Ryan KG, Pearman JK, Robinson N, Halfter S, Thomson-Laing J, Biessy L, Smith KF.   +7 more
europepmc   +2 more sources

A full-length 18S ribosomal DNA metabarcoding approach for determining protist community diversity using Nanopore sequencing. [PDF]

Ecol Evol
A new primer pair combination was used to amplify the full‐length 18S rDNA and its efficacy was validated with a test community. The full‐length sequences obtained with the Nanopore MinION for protist diversity from field samples yielded improved taxonomic resolution when compared with Illumina MiSeq V4 and V8‐V9 short reads. Abstract Protist diversity
Gaonkar CC, Campbell L.
europepmc   +2 more sources

Environmental drivers and key taxa shaping diatom-dinoflagellate ratios in eutrophic coastal waters. [PDF]

Mar Life Sci Technol
Diatoms and dinoflagellates are two pivotal phytoplankton groups present in coastal ecosystems that play key roles in marine food webs and biogeochemical cycles.
Zhang L, Wang Z, Yang JT, Song S, Chen Z, Zhou K, Zhang H, Tan Y, Liu H, Wang D, Xia X.   +10 more
europepmc   +2 more sources

From metabarcoding time series to plankton food webs: The hidden role of trophic hierarchy in providing ecological resilience

Marine Ecology, Volume 44, Issue 3, June 2023., 2023
Abstract The advent of metabarcoding (metaB) in aquatic ecology has provided a huge amount of information on plankton biodiversity worldwide. However, the large datasets obtained with that approach are still partially explored, especially for what concerns the study of trophic interactions and food webs.
Luca Russo, Daniele Bellardini, Gianpaolo Zampicinini, Ferenc Jordán, Roberta Congestri, Domenico D’Alelio   +5 more
wiley   +1 more source

Nutrient limitation can explain a rapid transition to synchrony in an upwelling‐driven diatom community

Limnology and Oceanography, Volume 67, Issue S1, Page S298-S311, February 2022., 2022
Abstract Identifying the mechanisms controlling the temporal dynamics of ecological communities is key to understand their vulnerability to natural and anthropogenic impacts and to identify early warnings of critical transitions. At community level, inter‐specific synchrony is an important indicator of ecosystem stability and variation in function ...
Lucie Buttay, David A. Vasseur, Rafael González‐Quirós, Enrique Nogueira   +3 more
wiley   +1 more source

Sedimentary Ancient DNA From the Subarctic North Pacific: How Sea Ice, Salinity, and Insolation Dynamics Have Shaped Diatom Composition and Richness Over the Past 20,000 Years

Paleoceanography and Paleoclimatology, Volume 36, Issue 4, April 2021., 2021
Abstract We traced diatom composition and diversity through time using diatom‐derived sedimentary ancient DNA (sedaDNA) from eastern continental slope sediments off Kamchatka (North Pacific) by applying a short, diatom‐specific marker on 63 samples in a DNA metabarcoding approach.
H. H. Zimmermann, K. R. Stoof‐Leichsenring, S. Kruse, D. Nürnberg, R. Tiedemann, U. Herzschuh   +5 more
wiley   +1 more source

Relación de los parámetros fisicoquímicos con la estructura de la comunidad fitoplanctónica de las aguas superficiales del desembarcadero pesquero del Puerto de Ilo, región Moquegua, 2021 [PDF]

, 2021
El presente trabajo de investigación se realizó con el fin de determinar la relación de los parámetros físicos químicos con estructura la comunidad fitoplanctónica en el desembarcadero pesquero del puerto de Ilo, ubicado en la región Moquegua, Provincia ...
Ramos Tejeda, José Luis
core  

Caracterización del fitoplancton en la zona marino-costera del mar ecuatoriano desde 1995 a 2020 [PDF]

, 2022
La composición y abundancia del fitoplancton son elementos básicos para entender al ecosistema marino costero, y especialmente el flujo de energía que determinan sus diferentes servicios ecosistémicos; sin embargo, las investigaciones fitoplanctónicas en
Cuenca Cedeño, Kendry Junior
core  

Position of group-I introns (GI) and spliceosomal introns (SP) in 18S and 28S sequences of Chaetocerotaceae.

, 2018
Position of group-I introns (GI) and spliceosomal introns (SP) in 18S and 28S sequences of Chaetocerotaceae.
Marina Montresor (451007), Wiebe H. C. F. Kooistra (451006), Roberta Piredda (4849423), David G. Mann (122897), Chetan C. Gaonkar (3639769), Carmen Minucci (6157049), Diana Sarno (306514)   +6 more
core   +1 more source

Phylogenetics and Phylogeography in the Planktonic Diatom Genus Chaetoceros [PDF]

, 2019
The initial aims of this thesis were to assess the systematics of the planktonic diatom genus Chaetoceros and the phylogeographic patterns of selected species in this genus across spatial and temporal scales. As expected in every experiment, some initial
De Luca, Daniele
core   +1 more source