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: 11 December 2018

Benthic primary production in polar lakes and rivers

Benthic primary production in polar lakes and rivers

(p.179) CHAPTER 10 Benthic primary production in polar lakes and rivers
Polar Lakes and Rivers

Antonio Quesada

Eduardo Fernández-Valiente

Ian Hawes

Clive Howard-Williams

Oxford University Press

The benthic component of lakes, ponds, rivers, and streams is often rich in biodiversity as well as biomass. The main communities in the benthic habitat are microbial mats, aquatic mosses, and green algal felts that inhabit both running and lentic waters. The substantial primary production in these benthic autotrophic communities, together with their reduced losses of assimilated carbon because of the low temperatures, low degradation rates, and minimal grazing pressure, can result in luxuriant growth and accumulation of these photosynthetic elements. This chapter describes the types of communities typically found in non-marine benthic habitats. A review of the primary production rates that have been measured under different circumstances is also presented, drawing on information from the literature as well as unpublished data. The chapter concludes by exploring why the benthic component (phytobenthos) often dominates over planktonic communities (phytoplankton) in polar aquatic ecosystems.

Keywords:   benthic communities, microbial mats, carbon assimilation, photosynthesis, primary production, phytobenthos, periphyton, moss

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 .