Cyclotella (Bacillariophyceae) species present in sediments dating to Marine Isotope Stage 5 from Lake Chalco, central Mexico, with special reference to two new species: Cyclotella poyeka and Cyclotella tlalocii

Diana Avendaño; Margarita Caballero

doi:10.1080/0269249x.2021.2010808

Cyclotella (Bacillariophyceae) species present in sediments dating to Marine Isotope Stage 5 from Lake Chalco, central Mexico, with special reference to two new species: Cyclotella poyeka and Cyclotella tlalocii

Diana Avendaño, Margarita Caballero

Continental Scientific Drilling Facility

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

Lake Chalco is one of the few lakes in Mexico that has a long, continuous sedimentary sequence covering the Upper Pleistocene (> 150 000 yrs). The diatom content of its lacustrine sediments includes a variety of centric species. In particular, the sediments dating to Marine Isotope Stage 5 (MIS5) were alternately dominated by four Cyclotella spp: C. meneghiniana Kützing, C. quillensis Bailey, and two new species which are described here: C. poyeka and C. tlalocii. These two new Cyclotella spp. resemble C. stylorum Brightwell, because of the presence of marginal chambers. Nevertheless, the new species from Lake Chalco have a different structure of the marginal chambers and marginal fultoportulae with three satellite pores. Cyclotella poyeka and C. tlalocii differ from each other by the relative proportion of the central area to valve face diameter, the central fultoportula arrangement, and the striation pattern. Ecological affinities of the four Cyclotella species in the MIS5 sediments from Lake Chalco are discussed based on their modern distribution (for C. meneghiniana and C. quillensis) and their fossil assemblages (for C. quillensis, C. tlalocii and C. poyeka), leading to the conclusion that C. tlalocii was a freshwater species while C. meneghiniana, C. quillensis, and C. poyeka thrived in saline conditions.

Original language	English (US)
Pages (from-to)	323-344
Number of pages	22
Journal	Diatom Research
Volume	36
Issue number	4
DOIs	https://doi.org/10.1080/0269249x.2021.2010808
State	Published - 2022

Bibliographical note

Funding Information:
This research was funded by the National University of Mexico (UNAM), projects PAPIIT IN100820 ‘Registros Interglaciares del Centro de México’ and DGAPA-PAPIIT-IN103819 ‘Variabilidad climática y paleoambientes durante la terminación II (130 ka): El paso del penúltimo glacial (MIS 6) al penúltimo interglaciar (MIS 5)’. Diana Avendaño thanks the Posgrado de Ciencias de la Tierra, UNAM and CONACyT (Consejo Nacional de Ciencia y Tecnología) [CVU 854736] for financial support. Laura Gómez Lizárraga gave technical assistance for sample preparation and observation with the scanning electron microscopy. Dr. Nienow provided advice on the taxonomy of Cyclotella stylorum. Dr. Socorro Lozano and Dr. Beatriz Ortega have been lead collaborators in the Chalco drilling projects and their support has been fundamental for the recovery, description and dating of the sediment sequence. We also thank two anonymous reviewers, Dr. Eileen J. Cox and Dr. Jeffery Stone for their valuable comments that greatly improved our manuscript.

Publisher Copyright:
© 2022 The International Society for Diatom Research.

Keywords

centric diatoms
complex alveoli
diatom ecology
diatom taxonomy
marginal chambers
Pleistocene
Stephanodiscaceae

Continental Scientific Drilling Facility tags

CHALCO

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10.1080/0269249x.2021.2010808

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Cyclotella (Bacillariophyceae) species present in sediments dating to Marine Isotope Stage 5 from Lake Chalco, central Mexico, with special reference to two new species: Cyclotella poyeka and Cyclotella tlalocii. / Avendaño, Diana; Caballero, Margarita.
In: Diatom Research, Vol. 36, No. 4, 2022, p. 323-344.

Research output: Contribution to journal › Article › peer-review

@article{38ef886835b24e43974e4f8b2c3824e5,

title = "Cyclotella (Bacillariophyceae) species present in sediments dating to Marine Isotope Stage 5 from Lake Chalco, central Mexico, with special reference to two new species: Cyclotella poyeka and Cyclotella tlalocii",

abstract = "Lake Chalco is one of the few lakes in Mexico that has a long, continuous sedimentary sequence covering the Upper Pleistocene (> 150 000 yrs). The diatom content of its lacustrine sediments includes a variety of centric species. In particular, the sediments dating to Marine Isotope Stage 5 (MIS5) were alternately dominated by four Cyclotella spp: C. meneghiniana K{\"u}tzing, C. quillensis Bailey, and two new species which are described here: C. poyeka and C. tlalocii. These two new Cyclotella spp. resemble C. stylorum Brightwell, because of the presence of marginal chambers. Nevertheless, the new species from Lake Chalco have a different structure of the marginal chambers and marginal fultoportulae with three satellite pores. Cyclotella poyeka and C. tlalocii differ from each other by the relative proportion of the central area to valve face diameter, the central fultoportula arrangement, and the striation pattern. Ecological affinities of the four Cyclotella species in the MIS5 sediments from Lake Chalco are discussed based on their modern distribution (for C. meneghiniana and C. quillensis) and their fossil assemblages (for C. quillensis, C. tlalocii and C. poyeka), leading to the conclusion that C. tlalocii was a freshwater species while C. meneghiniana, C. quillensis, and C. poyeka thrived in saline conditions.",

keywords = "centric diatoms, complex alveoli, diatom ecology, diatom taxonomy, marginal chambers, Pleistocene, Stephanodiscaceae",

author = "Diana Avenda{\~n}o and Margarita Caballero",

note = "Funding Information: This research was funded by the National University of Mexico (UNAM), projects PAPIIT IN100820 {\textquoteleft}Registros Interglaciares del Centro de M{\'e}xico{\textquoteright} and DGAPA-PAPIIT-IN103819 {\textquoteleft}Variabilidad clim{\'a}tica y paleoambientes durante la terminaci{\'o}n II (130 ka): El paso del pen{\'u}ltimo glacial (MIS 6) al pen{\'u}ltimo interglaciar (MIS 5){\textquoteright}. Diana Avenda{\~n}o thanks the Posgrado de Ciencias de la Tierra, UNAM and CONACyT (Consejo Nacional de Ciencia y Tecnolog{\'i}a) [CVU 854736] for financial support. Laura G{\'o}mez Liz{\'a}rraga gave technical assistance for sample preparation and observation with the scanning electron microscopy. Dr. Nienow provided advice on the taxonomy of Cyclotella stylorum. Dr. Socorro Lozano and Dr. Beatriz Ortega have been lead collaborators in the Chalco drilling projects and their support has been fundamental for the recovery, description and dating of the sediment sequence. We also thank two anonymous reviewers, Dr. Eileen J. Cox and Dr. Jeffery Stone for their valuable comments that greatly improved our manuscript. Publisher Copyright: {\textcopyright} 2022 The International Society for Diatom Research.",

year = "2022",

doi = "10.1080/0269249x.2021.2010808",

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T1 - Cyclotella (Bacillariophyceae) species present in sediments dating to Marine Isotope Stage 5 from Lake Chalco, central Mexico, with special reference to two new species

T2 - Cyclotella poyeka and Cyclotella tlalocii

AU - Avendaño, Diana

AU - Caballero, Margarita

N1 - Funding Information: This research was funded by the National University of Mexico (UNAM), projects PAPIIT IN100820 ‘Registros Interglaciares del Centro de México’ and DGAPA-PAPIIT-IN103819 ‘Variabilidad climática y paleoambientes durante la terminación II (130 ka): El paso del penúltimo glacial (MIS 6) al penúltimo interglaciar (MIS 5)’. Diana Avendaño thanks the Posgrado de Ciencias de la Tierra, UNAM and CONACyT (Consejo Nacional de Ciencia y Tecnología) [CVU 854736] for financial support. Laura Gómez Lizárraga gave technical assistance for sample preparation and observation with the scanning electron microscopy. Dr. Nienow provided advice on the taxonomy of Cyclotella stylorum. Dr. Socorro Lozano and Dr. Beatriz Ortega have been lead collaborators in the Chalco drilling projects and their support has been fundamental for the recovery, description and dating of the sediment sequence. We also thank two anonymous reviewers, Dr. Eileen J. Cox and Dr. Jeffery Stone for their valuable comments that greatly improved our manuscript. Publisher Copyright: © 2022 The International Society for Diatom Research.

PY - 2022

Y1 - 2022

N2 - Lake Chalco is one of the few lakes in Mexico that has a long, continuous sedimentary sequence covering the Upper Pleistocene (> 150 000 yrs). The diatom content of its lacustrine sediments includes a variety of centric species. In particular, the sediments dating to Marine Isotope Stage 5 (MIS5) were alternately dominated by four Cyclotella spp: C. meneghiniana Kützing, C. quillensis Bailey, and two new species which are described here: C. poyeka and C. tlalocii. These two new Cyclotella spp. resemble C. stylorum Brightwell, because of the presence of marginal chambers. Nevertheless, the new species from Lake Chalco have a different structure of the marginal chambers and marginal fultoportulae with three satellite pores. Cyclotella poyeka and C. tlalocii differ from each other by the relative proportion of the central area to valve face diameter, the central fultoportula arrangement, and the striation pattern. Ecological affinities of the four Cyclotella species in the MIS5 sediments from Lake Chalco are discussed based on their modern distribution (for C. meneghiniana and C. quillensis) and their fossil assemblages (for C. quillensis, C. tlalocii and C. poyeka), leading to the conclusion that C. tlalocii was a freshwater species while C. meneghiniana, C. quillensis, and C. poyeka thrived in saline conditions.

AB - Lake Chalco is one of the few lakes in Mexico that has a long, continuous sedimentary sequence covering the Upper Pleistocene (> 150 000 yrs). The diatom content of its lacustrine sediments includes a variety of centric species. In particular, the sediments dating to Marine Isotope Stage 5 (MIS5) were alternately dominated by four Cyclotella spp: C. meneghiniana Kützing, C. quillensis Bailey, and two new species which are described here: C. poyeka and C. tlalocii. These two new Cyclotella spp. resemble C. stylorum Brightwell, because of the presence of marginal chambers. Nevertheless, the new species from Lake Chalco have a different structure of the marginal chambers and marginal fultoportulae with three satellite pores. Cyclotella poyeka and C. tlalocii differ from each other by the relative proportion of the central area to valve face diameter, the central fultoportula arrangement, and the striation pattern. Ecological affinities of the four Cyclotella species in the MIS5 sediments from Lake Chalco are discussed based on their modern distribution (for C. meneghiniana and C. quillensis) and their fossil assemblages (for C. quillensis, C. tlalocii and C. poyeka), leading to the conclusion that C. tlalocii was a freshwater species while C. meneghiniana, C. quillensis, and C. poyeka thrived in saline conditions.

KW - centric diatoms

KW - complex alveoli

KW - diatom ecology

KW - diatom taxonomy

KW - marginal chambers

KW - Pleistocene

KW - Stephanodiscaceae

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DO - 10.1080/0269249x.2021.2010808

M3 - Article

AN - SCOPUS:85124078410

SN - 0269-249X

VL - 36

SP - 323

EP - 344

JO - Diatom Research

JF - Diatom Research

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ER -

Cyclotella (Bacillariophyceae) species present in sediments dating to Marine Isotope Stage 5 from Lake Chalco, central Mexico, with special reference to two new species: Cyclotella poyeka and Cyclotella tlalocii

Abstract

Bibliographical note

Keywords

Continental Scientific Drilling Facility tags

Publisher link

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