Nitzschia taikiensis sp. nov. (Bacillariophyta) – a new brackish diatom from the Toberi River marsh in the eastern Hokkaido, Japan-Reference-Cited by-同舟云学术

Nitzschia taikiensis sp. nov. (Bacillariophyta) – a new brackish diatom from the Toberi River marsh in the eastern Hokkaido, Japan

Published:2020-03-01 Issue:1 Volume:57 Page:1-12
ISSN:1897-2810
Container-title:Biodiversity Research and Conservation
language:en
Short-container-title:

Author:

Chiba Takashi¹^ORCID,Nishimura Yuichi²^ORCID,Horie Yoshifumi¹^ORCID,Tuji Akihiro³^ORCID

Affiliation:

1. Faculty of Bioresource Sciences , Akita Prefectural University , Kaidobata-Nishi 241-438, Nakano, Shimoshinjo , Akita 010-0195 , Japan

2. Institute of Seismology and Volcanology, Graduate School of Science , Hokkaido University , Kita 10 Nishi 8, Kita-ku , Sapporo 060-0810 , Japan

3. Department of Botany , National Museum of Nature and Science , Amakubo 4-1-1, Tsukuba , Ibaraki 305-0005 , Japan

Abstract

Abstract Nitzschia taikiensis sp. nov. is a brackish diatom species found in the Toberi River marsh, eastern Hokkaido, Japan. This species has characteristics similar to Nitzschia subamphioxoides Hustedt, which was originally described by Hustedt in 1959. In the present study, we conducted a comparative morphological analysis of N. taikiensis and N. subamphioxoides. The obtained results showed that they are different species. Sampling sites of N. taikiensis were located in salt marsh environments with very low salinity (1-5‰), acidic pH (5.2-5.9) and high mud content (95.0-97.5%). Identification of this species was relatively easy based on LM and SEM image analysis of its frustule features, such as the external form and stria density. This species has not been previously reported in Japan, which could be attributed to the reduction or loss of Japanese freshwater and salt marsh environments in the coastal areas, resulting from urban and industrial development.

Publisher

Walter de Gruyter GmbH

Link

https://www.sciendo.com/pdf/10.2478/biorc-2020-0001

Reference30 articles.

1. Baruah P. P. & Kakati B. 2012. Water quality and Phytoplankton diversity of Gopeswar temple freshwater pond in Assam, India. Bangl J Bot 41(2): 181-185.

2. Chiba T. & Nishimura Y. 2018. Necessity to distinguish Neogene diatoms from living and dead assemblages at the Toberi river mouth area, Hokkaido, Japan: A strategy for the paleo-tsunami research. Abstract of Japan Geoscience Union Meeting 2018, MIS11-P03, https://confit.atlas.jp/guide/event-img/jpgu2018/MIS11-P03/public/pdf?type=in

3. Chiba T & Sawai Y. 2014. Reexamination and updating of diatom species for paleoenvironmental reconstructions. Diatom 30: 17-30 (in Japanese with English abstract).

4. Chiba T., Nishimura Y. & Ohtsuka T. 2018. Fossil diatom assemblages during the last millennium in the Toberi River mouth area, Hokkaido, Japan. Diatom 34: 8-29.

5. Denys L. & Lange-Bertalot H. 1998. Observations on two taxa of the section Nitzschiae Lanceolatae (Bacillariophyceae): Nitzschia blankaartensis sp. nov. and N. bulnheimiana. Nova Hedwigia 67(1-2): 247-58.