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 April 18, 2006
Journal of Experimental Biology 209, 1737-1745 (2006)
Published by The Company of Biologists 2006
doi: 10.1242/jeb.02197
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 Litwiller, S. L.
Right arrow Articles by Wright, P. A.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Litwiller, S. L.
Right arrow Articles by Wright, P. A.

Rapid increase in the partial pressure of NH3 on the cutaneous surface of air-exposed mangrove killifish, Rivulus marmoratus

S. L. Litwiller1, M. J. O'Donnell2 and P. A. Wright1,*

1 Department of Integrative Biology, University of Guelph, Guelph, Ontario N1G 2W1, Canada
2 Department of Biology, McMaster University, Hamilton, Ontario L8S 4K1, Canada


Figure 1
View larger version (22K):

[in a new window]
  		Fig. 1. NH4+ concentration (A) and pH (B) of the bulk water (black bars) and cutaneous surface locations on the body of the fish (anterior, white bars; mid-section, hatched bars; posterior, cross-hatched bars) in R. marmoratus immersed for 1 h in Series I experiments (control I). Values are means + s.e.m. (N=8). Asterisk indicates significant difference from bulk water (P<0.05). There were no significant differences between locations.

 

Figure 2
View larger version (23K):

[in a new window]
  		Fig. 2. NH4+ concentration (A) and pH (B) of the bulk water (black bars) and cutaneous surface locations on the body of the fish (anterior, white bars; mid-section, hatched bars; posterior, cross-hatched bars) in R. marmoratus immersed for 11 days in Series I experiments (control II). Values are means + s.e.m. (N=8). Asterisk indicates significant difference from bulk water (P<0.05). There were no significant differences between locations.

 

Figure 3
View larger version (17K):

[in a new window]
  		Fig. 3. NH4+ concentration (A), pH (B) and the calculated partial pressure of NH3 (C) of the bulk water (black bars) and cutaneous surface of immersed (white bars) and acutely (1 h) air-exposed (hatched bars) R. marmoratus (Series II). Values are means + s.e.m. (N=5 bulk water, N=5 cutaneous immersed, N=9 cutaneous air-exposed). Bars with a different letter are significantly different (P<0.05).

 

Figure 4
View larger version (16K):

[in a new window]
  		Fig. 4. NH4+ concentration (A), pH (B) and the calculated partial pressure of NH3 (C) of the bulk water (black bars) and cutaneous surface of immersed (white bars) and chronically (11 days) air-exposed (hatched bars) R. marmoratus (Series III). Values are means + s.e.m. (N=8 bulk water, N=8 cutaneous immersed; N=6 cutaneous air-exposed NH4+ concentration, N=12 cutaneous air-exposed pH, N=6 cutaneous air-exposed PNH3). Bars with a different letter are significantly different (P<0.05).

 

Figure 5
View larger version (12K):

[in a new window]
  		Fig. 5. Percent body water content over 11 days in both immersed (black bars) and air-exposed (white bars) R. marmoratus. Values are expressed as mean + s.e.m. (N=6 immersed, N=8 air-exposed). Asterisk indicates significant difference from day 0.

 




© The Company of Biologists Ltd 2006