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 June 13, 2008
Journal of Experimental Biology 211, 2066-2070 (2008)
Published by The Company of Biologists 2008
doi: 10.1242/jeb.017038
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 Google Scholar
Google Scholar
Right arrow Articles by Speiser, D. I.
Right arrow Articles by Johnsen, S.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Speiser, D. I.
Right arrow Articles by Johnsen, S.
Social Bookmarking
Add to CiteULike   Add to Complore   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Reddit   Add to Technorati   Add to Twitter  
What's this?

Scallops visually respond to the size and speed of virtual particles

Daniel I. Speiser* and Sönke Johnsen

Biology Department, Duke University, Durham, NC 27708, USA


Figure 1
View larger version (10K):
[in this window]
[in a new window]

  		Fig. 1. The experimental arena used in this study. Flow direction matched virtual particle direction and scallops were mounted right valve down, so that their anterior faced away from oncoming flow.

 

Figure 2
View larger version (20K):
[in this window]
[in a new window]

  		Fig. 2. Drawings of A. irradians with (A) open anterior mantle gape (amg) and (B) closed amg. Abbreviations: e, eye; g, gill; lv, left valve; rv, right valve; t, tentacle.

 

Figure 3
View larger version (5K):
[in this window]
[in a new window]

  		Fig. 3. The percentage of observations per trial in which scallop anterior mantle gapes were open. Particle diameter varied between trials, but particle speed was held constant at 2.5 cm s–1. Background radiance in each trial was identical. Error bars represent + 2 s.e.m. N=24, 24 and 25 for the no particle, 0.6 mm particle, and 1.5 mm particle treatments, respectively. *P=0.05; ***P=0.001.

 

Figure 4
View larger version (6K):
[in this window]
[in a new window]

  		Fig. 4. The percentage of observations per trial in which scallop anterior mantle gapes were open. Particle speed varied between trials, but particle size was held constant at 1.5x1.5 mm. Background radiance in each trial was identical. Error bars represent + 2 s.e.m. N=24, 25, 25, and 24 for the no particle, 2.5 cm s–1, 5 cm s–1 and 10 cm s–1 treatments, respectively. *P=0.05; **P=0.01.

 

Add to CiteULike CiteULike   Add to Complore Complore   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Reddit Reddit   Add to Technorati Technorati   Add to Twitter Twitter    What's this?



© The Company of Biologists Ltd 2008