Skip Navigation



JPR Advance Access published online on February 3, 2006
Journal of Plankton Research, doi:10.1093/plankt/fbi131
This Article
Right arrow Full Text (PDF)
Right arrow All Versions of this Article:
28/4/429    most recent
fbi131v1
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 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 Augustin, C. B.
Right arrow Articles by Boersma, M.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Augustin, C. B.
Right arrow Articles by Boersma, M.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

© The Author 2006. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org
Received September 7, 2005
Accepted February 1, 2006

Article

Effects of nitrogen stressed algae on different Acartia species

Christina B. Augustin 1 * and Maarten Boersma 1

1 Alfred-Wegener-Institut für Polar- und Meeresforschung Biologische Anstalt Helgoland Postfach 180 27483 Helgoland Germany

* To whom correspondence should be addressed.
Christina B. Augustin, E-mail: caugustin{at}awi-bremerhaven.de


  Abstract

We studied the reproductive response of two copepod species, Acartia tonsa and Acartia clausii fed algae with different C:N ratios (4.5 and 9.1 molar ratios respectively) in order to investigate the influence of nutritional imbalances on calanoid copepods egg production. Adult females were incubated with the cryptophyte Rhodomonas sp. at saturating concentrations.The algae were cultured under nitrogen depleted and sufficient conditions. Ingestion rates of the animals fed different algae, and their response in terms of egg production and hatching success of the eggs were quantified. Both species produced more egg when fed nitrogen-limited algae. Ingestion rates and egg hatching differed between species, but were not significantly affected by the quality of the food. The only difference between the two species in their reaction to food quality was that A. tonsa increased the size of the subitaneous eggs, whereas egg size decreased in A. clausii when fed with nitrogen limited algae. These results support the recent suggestion that a moderately high prey C:N ratio (10-15) supports a higher egg production than a C:N ratio substantially < 10.

Communicating Editor: KJ Flynn


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.