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.
Member of
Contributors
Publisher
National Research Council Canada.
Date Issued
1987
Note
Language
Type
Genre
Form
Extent
7 p.
Subject (Topical)
Identifier
FA00007183
Additional Information
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.
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.
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.
Date Backup
1987
Date Text
1987
DOI
10.1139/z87-408
Date Issued (EDTF)
1987
Extension
FAU
IID
FA00007183
Organizations
Attributed name: Harbor Branch Oceanographic Institute
Person Preferred Name
Larson, R. J.
Physical Description
7 p.
Title Plain
Costs of transport for thescyphomedusa Stomolophus meleagris L. Agassiz
Origin Information
1987
National Research Council Canada.
Ottawa
Place
Ottawa
Title
Costs of transport for thescyphomedusa Stomolophus meleagris L. Agassiz
Other Title Info
Costs of transport for thescyphomedusa Stomolophus meleagris L. Agassiz