New records of soft‐shelled monothalamous Foraminifera and gromiids on the Romanian Black Sea shelf

Pavel, Ana Bianca; Menabit, Selma; Pop, Ioan Cornel

doi:10.1007/s11756-021-00708-x

Cited by 5 publications

(8 citation statements)

References 43 publications

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“…The morphology of Psammophaga sp. described by Pavel et al [21] from the Romanian Continental Shelf closely resembles Psammophaga secriensia sp. nov.…”

Section: Molecular Characteristicsmentioning

confidence: 55%

“…Pavel et al [21] documented the presence of Psammophaga sp. from 29 sampling stations along the Romanian coast, ranging in depth from 20 to 79 m. The morphology of these specimens matches the characteristics of Psammophaga secriensia sp.…”

Section: Introductionmentioning

confidence: 99%

“…from 29 sampling stations along the Romanian coast, ranging in depth from 20 to 79 m. The morphology of these specimens matches the characteristics of Psammophaga secriensia sp. nov., but most specimens of Pavel et al [21] are considerably larger, and sequencing results are needed for their identification. Psammophaga secriensia sp.…”

Section: Introductionmentioning

confidence: 99%

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Psammophaga secriensia sp. nov., a New Monothalamid Foraminifera (Protista, Rhizaria) from the Romanian Black Sea Shelf

Pavel

Kreuter

Holzmann

et al. 2023

JMSE

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Based on molecular and morphological characters, we describe a new species of monothalamous foraminifera, Psammophaga secriensia sp. nov., that was sampled from two coastal locations (48 m and 53 m depth) on the Romanian Black Sea continental shelf. Molecular data further confirm its presence in the northeastern part of the Black Sea (Balaklava Bay, 5–10 m depth). Specimens of Psammophaga secriensia sp. nov. are characterized by an elongate to broadly pyriform test and a simple rounded aperture. The wall is translucent and the cytoplasm contains mineral grains of different sizes. The genus Psammophaga, including Psammophaga simplora and several undetermined morphotypes, has been reported from different areas of the Black Sea. Previous research using an integrative taxonomic approach has identified two additional species (Psammophaga zirconia; Psammophaga sp., Gooday et al., 2011) occurring in the Black Sea. Monothalamids are an important part of the meiobenthos in the Black Sea and our results increase the knowledge of foraminiferal diversity in this marginal sea.

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“…The morphology of Psammophaga sp. described by Pavel et al [21] from the Romanian Continental Shelf closely resembles Psammophaga secriensia sp. nov.…”

Section: Molecular Characteristicsmentioning

confidence: 55%

Section: Introductionmentioning

confidence: 99%

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Psammophaga secriensia sp. nov., a New Monothalamid Foraminifera (Protista, Rhizaria) from the Romanian Black Sea Shelf

Pavel

Kreuter

Holzmann

et al. 2023

JMSE

Self Cite

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“…With only six formally described species (seven including Allogromia marina), gromiids remain a poorly-known group taxonomically. However, these relatively large and conspicuous protists have now been recognised at increasing numbers of marine sites around the world, from intertidal to extreme hadal depths (Arnold 1972;Matz et al 2008;Rothe et al 2009;Goldstein et al 2011;Sergeeva et al 2012;LeDuc and Rowden 2017;Gooday and Goineau 2019;Pavel et al 2021) and they clearly encompass many undescribed species (Aranda da Silva et al 2006; Aranda da Silva and Rothe et al 2011). The present study adds to our knowledge of gromiid diversity by describing three new species from fjords around Nuuk in SW Greenland.…”

Section: Introductionmentioning

confidence: 61%

Three new species of Gromia (Protista, Rhizaria) from western Greenland fjords

et al. 2021

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Species of large, testate, rhizarian protists in the genus Gromia are often common in high-latitude coastal environments, including fjords, but are frequently overlooked and almost all are undescribed.Here, we describe three new gromiid species from the Nuuk fjord system on the west coast of southern Greenland. Morphologically, the new species differ in the size and shape of the test. Gromia cucumiformis sp. nov. is elongate, up to 5.5 mm long, with a length:width (L/W) ratio of 4.3-5.5; Gromia botelliformis sp. nov. is up to 2.1 mm long, with a L/W ratio of 3.0-4.8; Gromia brevis is typically less than 1.0 mm long, with a L/W ratio around 2.0. Genetically, they are well-characterised and split between two clades. Gromia cucumiformis and G. brevis branch with several species of deep-water gromiids from the Arabian Sea and the Weddell Sea, while G. botelliformis branches with deep Weddell Sea species and several unnamed and morphologically uncharacterised gromiids from different parts of the world. Gromia botelliformis and G. brevis are currently known only from the Nuuk fjords, but sequences of G. cucumiformis from Greenland group together with sequences from Svalbard and the White Sea. Our genetic data reveal four additional clades of undescribed Gromia species. Two contain sequences from Greenland, Svalbard and the White Sea, one comprises sequences from Greenland and the White Sea and one is limited to sequences from Greenland. These results demonstrate the high genetic diversity of gromiids and their widespread distribution in Arctic as well as in deep-sea environments.

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“…Some foraminifera are agglutinated taxa (often grouped together under the name textulariids), which form their tests from variably cemented sediment particles or carbonated cement. There are also some foraminifera with organic walls belonging to the Gromiidae class (e.g., Pavel et al, 2021).…”

Section: Foraminifera As An Environmental Proxymentioning

confidence: 99%

Early-to-mid Holocene environmental change in the Kallang River Basin, Singapore

Yan¹

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2.1 Introduction 2.1.1 Holocene epoch 2.1.2 Sunda Shelf 2.2 Sea level records in the Sunda Shelf 2.3 Sedimentary and stratigraphic records in the Sunda Shelf 2.3.1 Mekong River delta 2.3.2 Red (Song Hong) River delta 2.3.3 Chao Phraya River delta 2.4 Rainfall variability in the Maritime Continent 2.4.1 Movement of the Inter-Tropical Convergence Zone 2.4.2 Zonal variations 2.4.3 Other drivers 2.4.4 Comparison of hydroclimate records 2.5 Abrupt climate anomaly during the early Holocene 2.6 Conclusion 2.7 References Chapter 3: Core-CT: a MATLAB application for the quantitative analysis of sediment and coral cores from X-ray Computed Tomography (CT) Abstract 3.1 Introduction 3.1.1 Geoscience applications of CT scanning 3.1.2 Challenges of using CT data 3.1.3 Core-CT 3.2 Quantitative data in CT scan images 3.3 Methods 3.3.1 Method 1: Constructing mean CT number profiles from ROI 3.3.2 Method 2: Localised CT number profile 3.3.3 Image and volume segmentation of ROI 3.4 Implementation 3.5 Applications of Core-CT in geoscience investigations 3.5.1 Identification of historical tsunami deposits in sedimentary record: Lake Huelde Chile 3.5.2 Identification of sedimentary units in unsplit sediment cores: Kallang River Basin, Singapore 3.5.3 Identification and quantification of coral growth bands and internal bioerosion: Red Sea, Saudi Arabia 3.6 Conclusion 3.7 Computer code availability 3.8 Declaration of competing interest 3.9 Acknowledgements 3.10 References Chapter 4: A sedimentary record of early-mid Holocene environmental change from southern Singapore Abstract 4.1 Introduction 4.2 Study site 4.3 Methods 4.3.1 Computed Tomography (CT) scan 4.3.2 Core logging 4.3.3 X-ray fluorescence (XRF) core scanning 4.3.4 Loss on Ignition (LOI) 4.3.5 Grain size distribution 4.3.6 Radiocarbon dating and chronology 4.4 Results 4.4.1 CT scanning 4.4.2 Core logging 4.4.3 XRF core scanning 4.4.4 Loss on Ignition (LOI) 4.4.5 Grain size distribution 4.4.6 Chronology of GRBH03 4.4.7 Lithofacies of GRBH03 4.5 Discussion 4.5.1 Sea level and sediment accumulation history 4.5.2 Other possible drivers of sediment accumulation 4.6 Conclusion 4.7 References Chapter 5: Early-mid Holocene environmental change inferred from shallow marine benthic foraminifera from Singapore Abstract 5.1 Introduction 5.2 Foraminifera as an environmental proxy 5.3 Study area 5.3.1 Foraminiferal studies in the Sunda Shelf 5.4 Methods 5.4.1 Chronology 5.4.2 Foraminiferal analysis 5.4.3 Quantitative analyses 5.5 Results 5.5.1 Foraminiferal assemblages 5.6 Discussion 5.6.1 Taphonomy effects 5.6.2 Environmental change inferred from foraminiferal records 5.7 Conclusion 5.8 Acknowledgements 5.9 References Chapter 6: Early-mid Holocene hydroclimate records using stable carbon and oxygen isotopes of shallow marine benthic foraminifera from Singapore

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New records of soft‐shelled monothalamous Foraminifera and gromiids on the Romanian Black Sea shelf

Cited by 5 publications

References 43 publications

Psammophaga secriensia sp. nov., a New Monothalamid Foraminifera (Protista, Rhizaria) from the Romanian Black Sea Shelf

Psammophaga secriensia sp. nov., a New Monothalamid Foraminifera (Protista, Rhizaria) from the Romanian Black Sea Shelf

Three new species of Gromia (Protista, Rhizaria) from western Greenland fjords

Early-to-mid Holocene environmental change in the Kallang River Basin, Singapore

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