Skip Navigation


JPR Advance Access originally published online on July 8, 2008
Journal of Plankton Research 2008 30(10):1169-1177; doi:10.1093/plankt/fbn073
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow All Versions of this Article:
30/10/1169    most recent
fbn073v1
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by Goto, N.
Right arrow Articles by Ishida, N.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Goto, N.
Right arrow Articles by Ishida, N.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

© The Author 2008. Published by Oxford University Press. All rights reserved. For permissions, please email: journals.permissions@oxfordjournals.org

Seasonal distribution of photosynthetically active phytoplankton using pulse amplitude modulated fluorometry in the large monomictic Lake Biwa, Japan

Naoshige Goto1,*, Masaki Kihira1 and Noriko Ishida2

1 School of Environmental Science, The University of Shiga Prefecture, 2500 Hassaka-Cho, Hikone, Shiga 522-8533, Japan 2 Nagoya Woman's University, 1302 Takamiya-Cho, Tenpaku-Ku, Nagoya 468-0013, Japan

* CORRESPONDING AUTHOR: gotonao{at}ses.usp.ac.jp

Received on March 30, 2008; accepted on July 4, 2008


  Abstract

The detailed seasonal distribution of photosynthetically active phytoplankton was measured using the pulse amplitude modulated fluorescence technique in the large monomictic Lake Biwa, Japan, throughout the year. At the same time, the biological and physicochemical factors (water temperature, irradiance, nutrients and phytoplankton species) affecting the primary production of phytoplankton were also measured in order to estimate the relationship between the distribution of the active phytoplankton and environmental factors. The potential maximum quantum yield (Fv/Fm) of photosystem II was used as an index of the degree of potential photosynthetic competence of phytoplankton. As a result, the simultaneous measurement of Fv/Fm and algal biomass showed clearly the seasonal and spatial distribution patterns of the photosynthetically active phytoplankton community, and the distributions were strongly dependent on the seasonal variation in the thermally stratified structure. In addition, the value of Fv/Fm in the euphotic zone was found to be influenced mainly by the irradiance and to be affected indirectly by nutrient concentration and the species composition of the phytoplankton community. Greater understanding of the detailed distribution of photosynthetically active phytoplankton coupled with their biomass will encourage new developments in studies of aquatic ecosystems.

Corresponding editor: William Li


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?




Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.