Diversity and distribution of nanoplanktonic<i>Minidiscus</i>(Bacillariophyta) in shelf waters of the Southwest Atlantic Ocean

Fernandes, Luciano F.; Correr-Da-Silva, Felipe

doi:10.1080/0269249x.2020.1845807

Cited by 3 publications

(2 citation statements)

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“…Copulae are composed of a hyaline ring, and valvocopulae form one or two rows of irregular small pores. M. trioculatus is reported as a planktonic species and is distributed along the oceans and the Mediterranean Sea (Kaczmarska et al, 2009;Leblanc et al, 2018;Fernandes & Da-Silva, 2020). Nevertheless, this is the first observation of cosmopolitan M. trioculatus on the Turkish coasts and the Aegean Sea.…”

Section: Biddulphia Seychellensis Grunow In Van Heurck 1883mentioning

confidence: 75%

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Contributions to the Diatom Flora of the Aegean Sea and the Mediterranean Sea from the Turkish Coasts with Remarks on Rare Taxa

Kaleli

2022

Medit. Mar. Sci.

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This study reports on newly recorded and several rare marine benthic diatoms from the Turkish coasts of the Aegean Sea. Altogether 510 species were observed from 6 locations throughout the Aegean Sea, and taxonomic and biogeographic remarks concerning thirty-four new recorded species are presented. Amongst the represented taxa, Amicula, Auricula, Cyclophora, Minidiscus, Oestrupia and Ralfsiella were observed for the first time in Turkish coastal waters. Biddulphia seychellensis, Cyclophora tabellariformis, Grammatophora maxima, G. gibberula, Amphicocconeis mascarenica, Cocconeis maxima, Amicula specululum, Caloneis egena, Diploneis dalmatica, D. droopii, Mastogloia affinis, M. linearis, M. mauritana and Oestrupia powelii var. vidovichii, which were rarely recorded from the coasts of the oceans and the Mediterranean Sea, were examined by light microscopy (LM) and scanning electron microscopy (SEM). Also, the findings revealed that the geographic range of A. mascarenica, B. seychellensis, C. tabellariformis and Psammodictyon corpulentum, which were distributed in warmer marine waters, has expanded to the temperate waters of the Aegean Sea. Additionally, the recently described species Hyalosira septata, from the loggerhead sea turtle carapace and the Turkish Mediterranean Sea coast was observed in the Aegean Sea. This study contributes to the diatom knowledge of marine waters from the understudied Aegean Sea coasts of Türkiye, enhancing the biogeography of some rare and well-established taxa.

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Section: Biddulphia Seychellensis Grunow In Van Heurck 1883mentioning

confidence: 75%

“…5E-F Basionym: Coscinodiscus trioculatus F.J.R. Taylor, 1966. References: Taylor (1967), Kaczmarska et al (2009), Fernandes & Da-Silva (2020). Morphometry: Valve diameters are 2-3 μm (n=8).…”

Section: Biddulphia Seychellensis Grunow In Van Heurck 1883mentioning

confidence: 99%

Contributions to the Diatom Flora of the Aegean Sea and the Mediterranean Sea from the Turkish Coasts with Remarks on Rare Taxa

Kaleli

2022

Medit. Mar. Sci.

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Picophytoplankton prevail year‐round in the Elbe estuary

Martens,

Biederbick,

Schaum

2024

Plant Enviro Interactions

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Picophytoplankton are important primary producers, but not always adequately recognized, for example, due to methodological limitations. In this study, we combined flow cytometry and metabarcoding to investigate seasonal and spatial patterns of picophytoplankton abundance and community composition in the Elbe estuary. Due to the mixing of freshwater and seawater and the tidal currents this ecosystem is characterized by typical estuarine features such as salinity gradients and high turbidity. Picophytoplankton (mostly picoeukaryotes such as Mychonastes and Minidiscus) contributed on average 70% (SD = 14%) to the total phytoplankton counts. In summer picocyanobacteria (e.g., Synechococcus) played a more significant role. The contributions of picophytoplankton to the total phytoplankton were particularly high from summer to winter as well as in the mid estuary. However, at salinities of around 10 PSU in the mixing area of freshwater and seawater, the proportion of picophytoplankton was comparably low (average 49%, SD = 13%). Our results indicate that picophytoplankton prevail in the Elbe estuary year‐round with respect to cell counts. Picophytoplankton could occupy important niche positions to maintain primary production under extreme conditions where larger phytoplankton might struggle (e.g., at high or low temperature, high turbidity, and in areas with high grazing pressure) and also benefit from high nutrient availability here. However, we did not find evidence that they played a particularly significant role at the salinity interface. Our study highlights the importance of including picophytoplankton when assessing estuarine phytoplankton as has been suggested for other ecosystems such as oceans.

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Metabarcoding reveals potentially mixotrophic flagellates and picophytoplankton as key groups of phytoplankton in the Elbe estuary

Martens,

Russnak,

Woodhouse

et al. 2024

Environmental Research

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Diversity and distribution of nanoplanktonicMinidiscus(Bacillariophyta) in shelf waters of the Southwest Atlantic Ocean

Cited by 3 publications

References 50 publications

Contributions to the Diatom Flora of the Aegean Sea and the Mediterranean Sea from the Turkish Coasts with Remarks on Rare Taxa

Contributions to the Diatom Flora of the Aegean Sea and the Mediterranean Sea from the Turkish Coasts with Remarks on Rare Taxa

Picophytoplankton prevail year‐round in the Elbe estuary

Metabarcoding reveals potentially mixotrophic flagellates and picophytoplankton as key groups of phytoplankton in the Elbe estuary

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