Skip Navigation



JPR Advance Access published online on December 16, 2004
Journal of Plankton Research, doi:10.1093/plankt/fbh167
This Article
Right arrow Full Text (PDF)
Right arrow All Versions of this Article:
27/2/159    most recent
fbh167v1
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 Iriarte, J.L.
Right arrow Articles by González, R. R.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Iriarte, J.L.
Right arrow Articles by González, R. R.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

Journal of Plankton Research, © Oxford University Press 2004; all rights reserved
Received December 7, 2003
Accepted November 25, 2004

Article

Relationship between biomass and enzymatic activity of a bloom-forming dinoflagellate (Dinophyceae) in Southern Chile (41°S): a field approach

J.L. Iriarte 1*, R. A. Quiñones 2, and R. R. González 2

1 Instituto de Acuicultura, Universidad Austral de Chile, Puerto Montt Campus, P.O. Box 1327, Puerto Montt, Chile; Oceanography Ph.D Program, Oceanography Department, Universidad de Concepción, P. O. Box 160-C, Concepcion, Chile
2 Centro de Investigación Oceanográfica en el Pacífico Sur-Oriental (FONDAP-COPAS), Universidad de Concepción, P. O. Box 160-C, Concepción, Chile

* To whom correspondence should be addressed.
J.L. Iriarte, E-mail: jiriarte{at}uach.cl


  Abstract

In a coastal area of southern Chile (41°S), the major ammonium assimilating enzyme glutamine synthetase was detected in a green dinoflagellate bloom during April 2003. High chlorophyll a concentrations (1000 µg L-1) attributable to Gymnodinium cf. chlorophorum in surface waters were associated with high glutamine synthetase and very low nitrate reductase activities. Coincident with the bloom, dissolved inorganic nitrogen concentrations were near the detection limit (NO3- + NH4+ <0.5 µM). Since glutamine synthetase correlates with the use of ammonium as an external nitrogen source, we suggest that GS activity seems to be a good indicator of ammonium utilization in a period dominated by a single dinoflagellate species.


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


This article has been cited by other articles:


Home page
 J PLANKTON RESHome page
C. Alves-de-Souza, M. T. Gonzalez, and J. L. Iriarte
Functional groups in marine phytoplankton assemblages dominated by diatoms in fjords of southern Chile
J. Plankton Res., November 1, 2008; 30(11): 1233 - 1243.
[Abstract] [Full Text] [PDF]

Home page
 J PLANKTON RESHome page
A. Laza-Martinez, S. Seoane, M. Zapata, and E. Orive
Phytoplankton pigment patterns in a temperate estuary: from unialgal cultures to natural assemblages
J. Plankton Res., November 1, 2007; 29(11): 913 - 929.
[Abstract] [Full Text] [PDF]

Home page
 ICES J. Mar. Sci.Home page
A. H. Buschmann, V. A. Riquelme, M. C. Hernandez-Gonzalez, D. Varela, J. E. Jimenez, L. A. Henriquez, P. A. Vergara, R. Guinez, and L. Filun
A review of the impacts of salmonid farming on marine coastal ecosystems in the southeast Pacific
ICES J. Mar. Sci., January 1, 2006; 63(7): 1338 - 1345.
[Abstract] [Full Text] [PDF]


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.