spacer gif spacer gif spacer gif spacer gif spacer gif
QUICK SEARCH:   [advanced]


spacer gif
     Home     Help     Feedback     Subscriptions     Archive     Search     Table of Contents    

First published online November 1, 2006
Journal of Experimental Biology 209, 4546-4556 (2006)
Published by The Company of Biologists 2006
doi: 10.1242/jeb.02550
This Article
Right arrow Summary Freely available
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 PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Rodolfo-Metalpa, R.
Right arrow Articles by Ferrier-Pagès, C.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Rodolfo-Metalpa, R.
Right arrow Articles by Ferrier-Pagès, C.

Growth and photosynthesis of two Mediterranean corals, Cladocora caespitosa and Oculina patagonica, under normal and elevated temperatures

Riccardo Rodolfo-Metalpa1,*, Cécile Richard1, Denis Allemand1,2 and Christine Ferrier-Pagès1

1 Centre Scientifique de Monaco, Av. Saint Martin, MC-98000, Principality of Monaco
2 UMR 1112 INRA-UNSA, Faculté des Sciences, Université de Nice Sophia-Antipolis, bp 71, F-06108, Nice Cedex 02, France


Figure 1
View larger version (13K):

[in a new window]
  		Fig. 1. Daily mean seawater temperature data for the summers 1999, 2000 and 2005 in the first 20 m in Monaco (Ligurian Sea). Hourly measurements were performed using Onset HOBO® water temperature pro data logger (unpublished data from the Oceanographic Museum of Monaco).

 

Figure 2
View larger version (5K):

[in a new window]
  		Fig. 2. Experimental design. See text for details.

 

Figure 3
View larger version (15K):

[in a new window]
  		Fig. 3. Cladocora caespitosa. (A) Growth rates; (B) rates of photosynthesis (P110) measured at the culture irradiance of 110 mol photon m-2 s-1 and (C) rates of respiration in the dark. Temperatures were 20°C (filled diamonds), 24°C (open squares), 26°C (open triangles) and 28°C (open circles). Values are means ± s.e.m., N=12 (A), N=6 (B,C).

 

Figure 4
View larger version (15K):

[in a new window]
  		Fig. 4. Cladocora caespitosa. (A) Photosynthetic efficiency (Fv/Fm) measured on dark-adapted samples; (B) maximum electron transport rate (ETRmax); (C) Rapid light curves measured at T34. Temperatures were 20°C (filled diamonds), 24°C (open squares), 26°C (open triangles) and 28°C (open circles). Values are means ± s.e.m., N=10.

 

Figure 5
View larger version (14K):

[in a new window]
  		Fig. 5. Cladocora caespitosa. (A) Zooxanthellae density; (B) chlorophyll a and (C) chlorophyll c2. Temperatures were 20°C (filled diamonds), 24°C (open squares), 26°C (open triangles) and 28°C (open circles). Values are means ± s.e.m., N=6.

 

Figure 6
View larger version (15K):

[in a new window]
  		Fig. 6. Oculina patagonica. (A) Photosynthetic efficiency (Fv/Fm) measured on dark-adapted samples; (B) maximum electron transport rate (ETRmax); (C) Rapid light curves measured at T34. Temperatures were 20°C (filled diamonds), 24°C (open squares), 26°C (open triangles) and 28°C (open circles). Values are means ± s.e.m., N=6.

 

Figure 7
View larger version (13K):

[in a new window]
  		Fig. 7. Oculina patagonica. (A) Zooxanthellae density; (B) chlorophyll a and (C) chlorophyll c2. Temperatures were 20°C (filled diamonds), 24°C (open squares), 26°C (open triangles) and 28°C (open circles). Values are means ± s.e.m., N=6.

 

Figure 8
View larger version (5K):

[in a new window]
  		Fig. 8. Growth rates of Oculina patagonica. Temperatures were 20°C (filled diamonds), 24°C (open squares), 26°C (open triangles) and 28°C (open circles). Values are means ± s.e.m., N=10.

 

Figure 9
View larger version (74K):

[in a new window]
  		Fig. 9. Polyp of Cladocora caespitosa. Photographs taken at T34, showing signs of tissue necrosis. (A) Tissue retraction started from the distal portion of the calyx; the arrow shows the direction (from 1 to 2); (B) tissue then underwent necrosis around the calyx edge (arrow); (C) necrosis finally reached the inside of the polyp; the arrow shows the lack of polyp tissue inside the corallite. Scale bar, 1 mm.

 




© The Company of Biologists Ltd 2006