Navicula kariana var. frigida (Grunow) Cleve (1895: 28)

Al-Handal, Adil Y., Thomas, Evan W. & Pennesi, Chiara, 2018, Marine benthic diatoms in the newly discovered coral reefs, off Basra coast, Southern Iraq, Phytotaxa 372 (2), pp. 111-152 : 128

publication ID	https://doi.org/10.11646/phytotaxa.372.2.1
DOI	https://doi.org/10.5281/zenodo.13729071
persistent identifier	https://treatment.plazi.org/id/0392662B-FF8B-2F71-FF61-F304FD12FB0F
treatment provided by	Felipe (2024-09-07 04:10:55, last updated by Valdenar 2024-09-09 12:29:10)
scientific name	Navicula kariana var. frigida (Grunow) Cleve (1895: 28)
status

Treatment

Navicula kariana var. frigida (Grunow) Cleve (1895: 28) View in CoL ( Fig. 52 View FIGURES 52–61 )

References: Poulin & Cardinal 1982, p. 283, fig. 33; Witkowski et al. 2000, p. 285, pl. 132, fig. 11–14, pl. 133, fig. 5–9.

Features: Length 60–72 μm, width 23–24 μm, striae 11–13 in 10 μm.

Description: Valves lanceolate with sub-rostrate apices. Raphe branches straight, ending centrally in expanded pores. Axial area narrow, central area very small, rounded. Transapical striae parallel throughout.

Remarks: Observed specimens are slightly larger than those reported by Witkowski et al. (2000).

Ecology and Distribution: This is a cold water species and has not been reported earlier from warm waters, mostly occurs in the Arctic Ocean but also found in Britain ( Whitton et al. 2003) and in Canada ( Mather et al. 2010). Not reported previously from the Gulf. Rare in Basra corals.

References

Cleve, P. T. (1895) Synopsis of the Naviculoid Diatoms, Part II. Kongliga Svenska-Vetenskaps Akademiens Handlingar 27: 1 - 219.

Mather, L., MacIntosh, K., Kaczmarska, I., Klein, G. & Martin, J. L. (2010) A checklist of diatom species reported (and presumed native) from Canadian coastal waters. Canadian Technical Report of Fisheries and Aquatic Sciences 2881: 1 - 78.

Poulin, M. & Cardinal, A. (1982) Sea ice diatoms from Manitounuk Sound, southeastern Hudson Bay (Quebec, Canada). I. Family Naviculaceae. Canadian Journal of Botany 60: 1263 - 1278. https: // doi. org / 10.1139 / b 82 - 343

Whitton, B. A., John, D. M., Kelly, M. G. & Haworth, E. Y. (2003) A coded list of freshwater algae of the British Isles. NERC, LOIS Publication Number 222. Institute of Hydrology. Wachnicka, A. & Gaiser, E. (2007) Species of Amphora and Seminavis from South Florida, USA. Diatom Research 22: 387 - 455.

Witkowski, A., Lange-Bertalot, H. & Metzeltin, D. (2000) Diatom Flora of Marine Coasts Iconographia Diatomologica 7: 1 - 925.

Figures

FIGURES 52–61. Marine benthic diatoms in coral reefs off Basra. Fig. 51. Navicula distans., Fig. 52. Navicula kariana var. frigida, Fig.53. Navicula transistantioides, Fig.54. Navicula sp., Fig. 55.Seminavis sp., Fig.56.Trachyneis antillarum, Fig.57.Trachyneis aspera, Fig. 58. Trachyneis clepsydra, Fig. 59. Trachyneis debyi, Fig. 60. Tracyneis velata, Fig. 61. Donkinia carinata.