Skip to main content Accessibility help
×
Hostname: page-component-77c89778f8-vsgnj Total loading time: 0 Render date: 2024-07-20T16:16:58.445Z Has data issue: false hasContentIssue false

14 - Mallomonas variabilis, sp. nov. (Synurophyceae) with stomatocysts found in Lake Konnevesi, Finland

Published online by Cambridge University Press:  05 March 2012

Craig D. Sandgren
Affiliation:
University of Wisconsin, Milwaukee
J. P. Smol
Affiliation:
Queen's University, Ontario
J. Kristiansen
Affiliation:
University of Copenhagen
Get access

Summary

Introduction

At the seventh workshop of the International Association for Phytoplankton Taxonomy and Ecology (IAP) held on 5–15 May 1989 at Konnevesi Research Station, University of Jyväskylä, Finland, phytoplankton was collected in nearby Lake Konnevesi. At that time of year the lake was extremely rich in scaled chrysophytes (Table 14.1) and dominated by different species of Mallomonas and Synura. In the samples investigated, a Mallomonas species similar to M. alpina Pasch. & Ruttn. and M. tonsurata, Teil, was observed. Between 6 and 11 May this Mallomonas species developed stomatocysts (statospores, cysts). Preserved plankton samples were later examined with electron microscopy (EM). The alpina-tonsurata-like Mallomonas was found to be a new species and has been given the name Mallomonas variabilis sp. nov.

M. variabilis had, in fact, been recorded earlier from several Finnish lakes, even from Lake Konnevesi. However, no complete cells, only isolated scales were found; thus not enough information was available to make a new description of the species (Hällfors & Hällfors 1988). This species has also been recorded under the name M. tonsurata fa. in large lakes in northwestern Ontario, central Northwest Territories, and in the Alaskan Toolik Lake area (H. Kling, unpublished data).

Type
Chapter
Information
Chrysophyte Algae
Ecology, Phylogeny and Development
, pp. 333 - 344
Publisher: Cambridge University Press
Print publication year: 1995

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Save book to Kindle

To save this book to your Kindle, first ensure coreplatform@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle.

Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

Find out more about the Kindle Personal Document Service.

Available formats
×

Save book to Dropbox

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Dropbox.

Available formats
×

Save book to Google Drive

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.

Available formats
×