Revision of the needle-shaped Fragilaria species (Fragilariaceae, Bacillariophyta) in the Laurentian Great Lakes (United States of America, Canada)
Journal of Great Lakes Research, ISSN: 0380-1330, Vol: 48, Issue: 4, Page: 999-1020
2022
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Article Description
We investigated several common, needle-shaped diatoms to better characterize the taxonomy of the genus Fragilaria in the Laurentian Great Lakes. We conducted diatom morphometric analysis facilitated by SEM and LM imaging on samples collected as a part of the USEPA’s long-term biological monitoring program. We resolved several decades-long taxonomic problems in the Great Lakes. The results indicated that previous records of species formerly belonging to the genus Synedra, such as S. ( Fragilaria ) ostenfeldii, S. ( Fragilaria ) radians, and S. filiformis, should be corrected as these species likely do not occur in the Great Lakes. Valve morphology confirmed the presence of four previously undescribed species: Fragilaria andreseniana sp. nov., Fragilaria stoermeriana sp. nov., Fragilaria limnetica sp. nov., and Fragilaria michiganensis sp. nov. The morphology of several other Fragilaria taxa in the Great Lakes was examined, including a teratologic taxon ( Fragilaria sp. 1), Fragilaria crotonensis, Fragilaria grunowii, and a taxon showing morphological affinity to Fragilaria lemanensis (reported here as Fragilaria cf. lemanensis ). The spatial and seasonal distributions of these needle-shaped taxa were also analyzed and discussed.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S038013302200096X; http://dx.doi.org/10.1016/j.jglr.2022.04.006; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85132662950&origin=inward; https://linkinghub.elsevier.com/retrieve/pii/S038013302200096X; https://dx.doi.org/10.1016/j.jglr.2022.04.006
Elsevier BV
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