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Luo, Zhaohe; Lim, Zhen Fei; Mertens, Kenneth; Krock, Bernd; Teng, Sing Tung; Tan, Toh Hii; Leaw, Chui Pin; Lim, Po Teen; Gu, Haifeng. |
The gonyaulacean family Protoceratiaceae is characterised by five precingular plates. It currently encompasses the type genus Ceratocorys and the fossil genus Atopodinium. Fourteen strains of Ceratocorys, Pentaplacodinium, and Protoceratium were established from Malaysian and Hawaiian waters, and their morphologies were examined using light and scanning electron microscopy. Two new species, Ceratocorys malayensis sp. nov. and Pentaplacodinium usupianum sp. nov., were described from Malaysian waters. They share a Kofoidean plate formula of Po, Pt, 3ʹ, 1a, 6ʹʹ, 6C, 6S, 5ʹʹʹ, 1p, 1ʹʹʹʹ. Ceratocorys malayensis has a short first apical plate (1ʹ) with no direct contact with the anterior sulcal plate (Sa) whereas Pentaplacodinium usupianum had a... |
Tipo: Text |
Palavras-chave: Ceratocoryaceae; Gonyaulacaceae; Molecular phylogeny; Protoceratium reticulatum; Yessotoxin. |
Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00589/70143/68109.pdf |
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Sildever, Sirje; Ribeiro, Sofia; Mertens, Kenneth; Andersen, Thorbjørn Joest; Moros, Matthias; Kuijpers, Antoon. |
We present a record of dinoflagellate cyst assemblage composition, abundance, and morphology from the central Baltic Sea, spanning from the late 19th to the early 21st century. Environmental time-series were analyzed in relation to changes in community structure and diversity as inferred from the sediment record, and average summer sea surface salinity (SSS) was reconstructed based on the average process length of Protoceratium reticulatum resting cysts. The reconstructed summer SSS was compared to instrumental data for a critical evaluation of this approach. The most abundant species in this record were P. reticulatum and Biecheleria baltica, and on average ten taxa were identified per sample. The cyst record of B. baltica indicated that although this... |
Tipo: Text |
Palavras-chave: Baltic Sea; Biecheleria baltica; Dinoflagellate cysts; Environmental change; Protoceratium reticulatum; Sea-surface salinity; Sediment core records. |
Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00481/59300/61994.pdf |
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