The filamentous colony-forming diatom Aulacoseira pusilla with a high mantle height/valve diameter ratio

Akihiro Tuji; Megumi Nakagawa

doi:10.3800/pbr.18.225

Plankton and Benthos Research

Online ISSN : 1882-627X
Print ISSN : 1880-8247
ISSN-L : 1880-8247

Note

The filamentous colony-forming diatom Aulacoseira pusilla with a high mantle height/valve diameter ratio

Akihiro Tuji , Megumi Nakagawa

Author information

Akihiro Tuji
Department of Botany, National Museum of Nature and Science
Megumi Nakagawa
Biodiversity Division, National Institute for Environmental Studies

Corresponding author

ORCID

Keywords: Aulacoseira pusilla, Aulacoseira subarctica, Lake Kasumigaura

JOURNAL FREE ACCESS

2023 Volume 18 Issue 4 Pages 225-227

DOI https://doi.org/10.3800/pbr.18.225

Details

Published: November 27, 2023 Received: July 10, 2023 Released on J-STAGE: November 30, 2023 Accepted: September 07, 2023 Advance online publication: - Revised: -

Abstract

We found Aulacoseira pusilla individuals with valves with a high ratio of mantle height to valve diameter, making long filamentous colonies in Lake Kasumigaura. Light microscopy (LM) and scanning electoron microscopy (SEM) observation confirmed that these individuals belong to A. pusilla. Such a high ratio of mantle height to valve diameter has never been reported in previous studies. However, it was clarified that the relationship between these individuals' mantle height and valve diameter generally fits the same allometric relationship as with typical A. pusilla observed from the same sample.

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