Cyclotella paleo-ocellata, a new centric diatom (Bacillariophyta) from Lake Kinneret (Israel)

Houk, Vaclav; Reed, Jane M.; Cvetkoska, Aleksandra; Houk, Václav; Van De Vijver, Bart; Vossel, Hannah

Abstract

© Czech Phycological Society (2015). Large, subfossil populations of an unknown centric, planktonic diatom were observed in a lake sediment core from Lake Kinneret (Israel), which is here described as Cyclotella paleo–ocellata sp. nov. The new taxon, which belongs to the Cyclotella ocellata species complex, is described and separated from other similar taxa (e.g., Cyclotella ocellata, Cyclotella kuetzingiana, Cyclotella polymorpha, Cyclotella paraocellata) based on a combination of the following morphological characters: valve diameter, number of orbiculi depressi (circular depressions), number of striae/10 μm, stria length, number and position of rimoportulae and the number of central and marginal fultoportulae. Cyclotella paleo–ocellata can be distinguished mainly by two prominent characteristics: (1) the number and the arrangement of the orbiculi depressi (4–8) which increase with the valve diameter and (2) the marginal fultoportulae, situated on each, every second or third costa. Since Cyclotella paleo–ocellata is at present only known from the subfossil bottom sediments of Lake Kinneret, its ecological preferences are inferred simply from the associated diatom flora.

Citation

Houk, V., Reed, J. M., Cvetkoska, A., Houk, V., Van De Vijver, B., & Vossel, H. (2015). Cyclotella paleo-ocellata, a new centric diatom (Bacillariophyta) from Lake Kinneret (Israel). Fottea : journal of the Czech Phycological Society, 15(1), 63-75. https://doi.org/10.5507/fot.2015.006

• Journal Article Type: Article
• Acceptance Date: Nov 12, 2014
• Online Publication Date: Apr 22, 2015
• Publication Date: Apr 22, 2015
• Deposit Date: Dec 15, 2015
• Publicly Available Date: Nov 23, 2017
• Journal: Fottea, Olomouc
• Print ISSN: 1802-5439
• Electronic ISSN: 1805-4927
• Peer Reviewed: Peer Reviewed
• Volume: 15
• Issue: 1
• Pages: 63-75
• DOI: https://doi.org/10.5507/fot.2015.006
• Keywords: Bacillariophyta; Cyclotella paleo-ocellata; Lake Kinneret; Morphology; Taxonomy
• Public URL: https://hull-repository.worktribe.com/output/382699
• Publisher URL: http://fottea.czechphycology.cz/artkey/fot-201501-0006_Cyclotella_paleo-ocellata_a_new_centric_diatom_Bacillariophyta_from_Lake_Kinneret_Israel.php
• Additional Information: This is an open access article published in Fottea, Olomouc, 2015, v.15 issue 1.