Morphological observations on Cyclotella distinguenda Hustedt and C. delicatula Hustedt from the core sample of a meromictic karstic lake of Spain (Lake La Cruz) with aspects of their ecology

K. Kiss, E. Ács, K. Szabó, Maria R. Miracle, Eduardo Vicente

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Two Cyclotella species were found during the electron microscopic investigation of core samples from Lake La Cruz. Cyclotella distinguenda Hustedt was subdominant in the layers 80-110 cms and C. delicatula Hustedt was frequent and abundant in the layers 20-180 cms. SEM studies revealed an interesting variation in their valve structure elements. Analyses of the morphological characteristics of these species on the basis of SEM micrographs (55 photos were taken from C. distinguenda and 95 from C. delicatula) was made it possible to complete their description. In this paper, the similarities and differences between Cyclotella distinguenda, C. delicatula and related taxa (Cyclotella azigzensis Flower, Gasse et Håkansson, C. costei Druart et Straub, C. cyclopuncta Håkansson et Carter, C. granulata Kulumbaeva et Genkal, C. plitvicensis Hustedt, C. wuethrichiana Druart et Straub) are discussed.

Original languageEnglish
Pages (from-to)287-308
Number of pages22
JournalDiatom Research
Volume22
Issue number2
Publication statusPublished - Nov 2007

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meromictic lake
Cyclotella
scanning electron microscopy
Spain
ecology
lakes
lake
flower
sampling
electron
electrons
flowers

Keywords

  • Bacillariophyta
  • C. delicatula
  • Cyclotella distinguenda
  • Karstic lakes
  • SEM investigations
  • Taxonomy
  • Thalassiosiraceae
  • Valve morphology

ASJC Scopus subject areas

  • Aquatic Science

Cite this

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title = "Morphological observations on Cyclotella distinguenda Hustedt and C. delicatula Hustedt from the core sample of a meromictic karstic lake of Spain (Lake La Cruz) with aspects of their ecology",
abstract = "Two Cyclotella species were found during the electron microscopic investigation of core samples from Lake La Cruz. Cyclotella distinguenda Hustedt was subdominant in the layers 80-110 cms and C. delicatula Hustedt was frequent and abundant in the layers 20-180 cms. SEM studies revealed an interesting variation in their valve structure elements. Analyses of the morphological characteristics of these species on the basis of SEM micrographs (55 photos were taken from C. distinguenda and 95 from C. delicatula) was made it possible to complete their description. In this paper, the similarities and differences between Cyclotella distinguenda, C. delicatula and related taxa (Cyclotella azigzensis Flower, Gasse et H{\aa}kansson, C. costei Druart et Straub, C. cyclopuncta H{\aa}kansson et Carter, C. granulata Kulumbaeva et Genkal, C. plitvicensis Hustedt, C. wuethrichiana Druart et Straub) are discussed.",
keywords = "Bacillariophyta, C. delicatula, Cyclotella distinguenda, Karstic lakes, SEM investigations, Taxonomy, Thalassiosiraceae, Valve morphology",
author = "K. Kiss and E. {\'A}cs and K. Szab{\'o} and Miracle, {Maria R.} and Eduardo Vicente",
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AU - Kiss, K.

AU - Ács, E.

AU - Szabó, K.

AU - Miracle, Maria R.

AU - Vicente, Eduardo

PY - 2007/11

Y1 - 2007/11

N2 - Two Cyclotella species were found during the electron microscopic investigation of core samples from Lake La Cruz. Cyclotella distinguenda Hustedt was subdominant in the layers 80-110 cms and C. delicatula Hustedt was frequent and abundant in the layers 20-180 cms. SEM studies revealed an interesting variation in their valve structure elements. Analyses of the morphological characteristics of these species on the basis of SEM micrographs (55 photos were taken from C. distinguenda and 95 from C. delicatula) was made it possible to complete their description. In this paper, the similarities and differences between Cyclotella distinguenda, C. delicatula and related taxa (Cyclotella azigzensis Flower, Gasse et Håkansson, C. costei Druart et Straub, C. cyclopuncta Håkansson et Carter, C. granulata Kulumbaeva et Genkal, C. plitvicensis Hustedt, C. wuethrichiana Druart et Straub) are discussed.

AB - Two Cyclotella species were found during the electron microscopic investigation of core samples from Lake La Cruz. Cyclotella distinguenda Hustedt was subdominant in the layers 80-110 cms and C. delicatula Hustedt was frequent and abundant in the layers 20-180 cms. SEM studies revealed an interesting variation in their valve structure elements. Analyses of the morphological characteristics of these species on the basis of SEM micrographs (55 photos were taken from C. distinguenda and 95 from C. delicatula) was made it possible to complete their description. In this paper, the similarities and differences between Cyclotella distinguenda, C. delicatula and related taxa (Cyclotella azigzensis Flower, Gasse et Håkansson, C. costei Druart et Straub, C. cyclopuncta Håkansson et Carter, C. granulata Kulumbaeva et Genkal, C. plitvicensis Hustedt, C. wuethrichiana Druart et Straub) are discussed.

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KW - C. delicatula

KW - Cyclotella distinguenda

KW - Karstic lakes

KW - SEM investigations

KW - Taxonomy

KW - Thalassiosiraceae

KW - Valve morphology

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