Abnormal forms in the brittle-star Amphipholis squamata: a field study
(2002) Marine Biological Association of the United Kingdom. Journal — Vol. 82, n° 3, p. 491-493 (2002)
Files
No attached file found for this publication.
Details
- Authors
- Abstract
- Deviation from pentamerism is a rare phenomenon in 5-armed echinoderm species. Qualitative and quantitative data front field observations of 14 populations around the world were used for a biogeographical study of this phenomenon, Four abnormal forms presenting deviation from the classical pentamerism of echinoderms were observed within the brittle-star species Amphipholis squamata. (Echinodermata: Ophiuroidea). Although these forms were rare in global populations (0.29%), they call reach important frequencies in some locations. Our results suggest that habitat structure has all influence oil the occurence of abnormal forms. Moreover, deviations from pentamerism are not a heritable character but are a consequence of environmental perturbations oil the metamorphosis of larvae and/or abnormal regeneration of arms.
- Affiliations
Citations
Dupont, S., & Mallefet, J. (2002). Abnormal forms in the brittle-star Amphipholis squamata: a field study. Marine Biological Association of the United Kingdom. Journal, 82(3), 491-493. https://doi.org/10.1017/S0025315402005763 (Original work published 2002)