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Costs of transport for thescyphomedusa Stomolophus meleagris L. Agassiz
| Title: | Costs of transport for thescyphomedusa Stomolophus meleagris L. Agassiz. |
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| Name(s): |
Larson, R. J. Harbor Branch Oceanographic Institute |
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| Type of Resource: | text | |
| Genre: | Article | |
| Date Issued: | 1987 | |
| Publisher: | National Research Council Canada. | |
| Place of Publication: | Ottawa | |
| Physical Form: | ||
| Extent: | 7 p. | |
| Language(s): | English | |
| Identifier: | FA00007183 (IID), 10.1139/z87-408 (doi) | |
| Note(s): |
The rhizostome scyphomedusa Stomolophus meleagris swims continuously at speeds up to 15 cm sˉ¹. Mean velocities
increased as a power function of wet weight up to 70 g but were mostly constant thereafter. Bell pulsations ranged from 1.7 to 3.6
Hz. Reynolds numbers equalled 900 - 13 000. During activity, medusae consumed 0.05 mL O₂ hˉ¹g WWˉ¹ (1.2 mL O₂ hˉ¹ g
DWˉ¹), at 30°C. Rates for inactive medusae were 50% less. The estimated cost of transport ranged from 2 J. kgˉ¹ mˉ¹ at 5 g to
I J kgˉ¹ mˉ¹ at 1 kg. These rates are comparable to those of fishes and about 1/50th that of planktonic crustaceans. These results
were unexpected in light of the typical inefficiency (power output/power input) of jet swimming. However, S. meleagris has a
very low respiration rate relative to crustaceans and fish, which probably compensated for low swimming efficiency. Florida Atlantic University. Harbor Branch Oceanographic Institute contribution 604 This manuscript is an author version with the final publication available and may be cited as: Larson, R. J. (1987). Costs of transport for the scyphomedusa Stomolophus meleagris L. Agassiz. Canadian Journal of Zoology, 65(11), 2690-2695. |
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| Subject(s): |
Scyphomedusae Scyphozoa Rhizostomeae Animal locomotion |
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| Links: | http://dx.doi.org/10.1139/z87-408 | |
| Persistent Link to This Record: | http://purl.flvc.org/fau/fd/FA00007183 | |
| Host Institution: | FAU |
