Deconstructing suspension feeders by analysis of film and video
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| Authors: | Hart, MW |
| Year: | 1996 |
| Journal: | Invertebrate Biology 115: 185-190 |
| Title: | Deconstructing suspension feeders by analysis of film and video |
| Abstract: | Technological advances in illuminating, imaging, and recording the movements of small organisms now make it possible to analyze feeding behaviors that were previously misunderstood (e. g., suspension feeding). Presentations in this symposium include some of the best examples of the use of modern videomicroscopy to study suspension feeding, and other examples are found in the recent literature. However, video recordings often do not provide direct demonstration of feeding mechanisms (or other behaviors). Instead, video recordings provide data with which to test hypotheses about feeding. The presentation and interpretation of such data require a forthright accounting of their strengths and limitations. This accounting helps to dispel the common misconception that direct observation of behavior should provide direct insight into feeding mechanisms. I illustrate the usefulness of this accounting with a well-known example of suspension feeding: capture of small particles by reversal of ciliary beat in ciliated bands of some small echinoderms, hemichordates, and lophophorates. |
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