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Phenotypic plasticity in the larvae of Luidia foliata(Echinodermata: Asteroidea)
| Title: | Phenotypic plasticity in the larvae of Luidia foliata(Echinodermata: Asteroidea). |
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| Name(s): |
George, Sophie B. Harbor Branch Oceanographic Institute |
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| Type of Resource: | text | |
| Genre: | Article | |
| Date Issued: | 1994 | |
| Publisher: | A. A. Balkema. | |
| Place of Publication: | Brookfield, VT | |
| Physical Form: | ||
| Extent: | 12 p. | |
| Language(s): | English | |
| Identifier: | FA00007383 (IID) | |
| Note(s): |
The effect of food ration on growth and development oflarvae of the seastar Luidia
folio lata was examined in the laboratory. Different food rations led to different larval shapes.
Larvae at the high food ration (10000 cells/ml) had arms with pointed ends and those at the low
food ration (1000 cells/m]) had arms with rounded ends. Advanced bipinnaria at the low food
ration were larger and had longer larval arms than those at the high food ration. Juveniles started
appearing 85 days after fertilization at the high food ration and 167 days after fertilization for those
at the low food ration. The diameters of juveniles produced did not differ significantly between
food rations. The changes in shape associated with the low food ration should lead to greater
clearance rates which would enhance growth rate of larvae, although still at a slower rate than for
those at the high food ration. Developmental plasticity that allows changes in form in response to
different food concentrations or food quality may be a mechanism of acclimation to different food supplies. Florida Atlantic University. Harbor Branch Oceanographic Institute contribution 1014 This manuscript is an author version with the final publication available and may be cited as: George, S. B. (1994). Phenotypic plasticity in the larvae of Luidia foliata (Echinodermata: Asteroidea). In B. David, A. Guille, J. P. Feral, & M. Roux (Eds.), Echinoderms through Time: proceedings of the 8th International Echinoderm Conference, Dijon, France, 6-10 September 1993 (pp. 297-307). Rotterdam; Brookfield, VT: A.A. Balkema. |
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| Subject(s): |
Echinodermata Asteroidea Starfishes Larvae Phenotypic plasticity |
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| Persistent Link to This Record: | http://purl.flvc.org/fau/fd/FA00007383 | |
| Host Institution: | FAU |
