Jump to ContentJump to Main Navigation
Polar Lakes and RiversLimnology of Arctic and Antarctic Aquatic Ecosystems$
Users without a subscription are not able to see the full content.

Warwick F. Vincent and Johanna Laybourn-Parry

Print publication date: 2008

Print ISBN-13: 9780199213887

Published to Oxford Scholarship Online: January 2009

DOI: 10.1093/acprof:oso/9780199213887.001.0001

Show Summary Details
Page of

PRINTED FROM OXFORD SCHOLARSHIP ONLINE (www.oxfordscholarship.com). (c) Copyright Oxford University Press, 2018. All Rights Reserved. Under the terms of the licence agreement, an individual user may print out a PDF of a single chapter of a monograph in OSO for personal use (for details see www.oxfordscholarship.com/page/privacy-policy).date: 18 December 2018

Phytoplankton and primary production

Phytoplankton and primary production

(p.157) CHAPTER 9 Phytoplankton and primary production
Polar Lakes and Rivers

Michael P. Lizotte

Oxford University Press

The phytoplankton comprises a diverse array of photosynthetic organisms. The majority of polar lakes are classified as ultra-oligotrophic based on maximum chlorophyll concentrations. However, few lakes have been studied seasonally to determine the annual peak in biomass, thus trophic status is probably underestimated; intensively-studied lakes are mostly oligotrophic. The seasonal progression of primary production is initiated and ended by the large seasonal changes in solar radiation. A springtime peak occurs in most polar lakes, with subsequent enhancement or restraint by changes in light, nutrient availability or losses from grazing, disease, washout, and sedimentation. Comparisons between Arctic and Antarctic lakes imply that there may be differences in biodiversity, lake trophic status, and primary production that can improve understanding of the how polar lake phytoplankton are influenced by climate, nutrient supply, biotic interactions, and their own capacity to acclimate to their environment.

Keywords:   lakes, photosynthesis, chlorophyll, trophic status, solar radiation, nutrients

Oxford Scholarship Online requires a subscription or purchase to access the full text of books within the service. Public users can however freely search the site and view the abstracts and keywords for each book and chapter.

Please, subscribe or login to access full text content.

If you think you should have access to this title, please contact your librarian.

To troubleshoot, please check our FAQs , and if you can't find the answer there, please contact us .