Skip Navigation

This Article
Right arrow Full Text
Right arrow Full Text (PDF)
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 arrow Search for citing articles in:
ISI Web of Science (8)
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by Gonzalez, R. R.
Right arrow Articles by Quiñones, R. A.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Gonzalez, R. R.
Right arrow Articles by Quiñones, R. A.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

Journal of Plankton Research Vol.24 no.12 pp.1349-1356, 2002
© Oxford University Press 2002

SHORT COMMUNICATION

Ldh activity in Euphausia mucronata and Calanus chilensis: implications for vertical migration behaviour

Rodrigo R. Gonzalez* and Renato A. Quiñones

Department Of Oceanography And Centro De Investigación Oceanográfica En El Pacífico Sur Oriental (copas), University Of Concepción, Casilla 160-C, Concepción, Chile

* Corresponding Author: rogonzal{at}udec.cl

Specific lactic dehydrogenase (ldh) activity was measured in Euphausia mucronata and Calanus chilensis. Both key pelagic species inhabit areas of the Humboldt Current System that have permanent subsurface oxygen minimum layer. The specific ldh activity in E. mucronata was two orders of magnitude higher than that of C. chilensis, consistent with E. mucronata’s ability to conduct daily vertical migrations through the oxygen minimum layer. In contrast, C. chilensis is restricted to inhabiting oxygenated waters over the oxygen minimum layer without carrying out daily vertical migrations across it. A positive correlation (P < 0.0001) was found between the specific ldh activity and body size in E. mucronata. This study also reports the apparent kinetic properties (Vmax and Km) of ldh and the effect of temperature and pH on the specific activity for both 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
J. L. Iriarte, R. A. Quinones, and R. R. Gonzalez
Relationship between biomass and enzymatic activity of a bloom-forming dinoflagellate (Dinophyceae) in southern Chile (41{degrees} S): a field approach
J. Plankton Res., February 1, 2005; 27(2): 159 - 166.
[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.