Factors that affect the re-attachment of Chondracanthus chamissoi (Rhodophyta, Gigartinales) thalli |
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Authors: | E. Fonck R. Martínez Julio Vásquez C. Bulboa |
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Affiliation: | (1) Departamento de Biología Marina, Facultad de Ciencias del Mar, Universidad Católica del Norte, Casilla 117, Coquimbo, Chile;(2) Centro de Estudios Avanzados de Zonas áridas (CEAZA), Casilla 117, Coquimbo, Chile |
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Abstract: | Vegetative reproduction of Chondracanthus chamissoi by means of fragmentation and re-attachment of thalli is considered an effective strategy for maintaining natural populations of this species. Here, we evaluate the effects of (1) time of drifting thallus, (2) type of substratum, and (3) photon flux density, on the re-attachment capacity of thallus fragments of C. chamissoi. The results show that re-attachment decreases with the time after detachment, and was higher at the lower photon flux densities tested (10 and 40 μmol photons m−2s−1), and on calcareous substratum. Secondary attachment discs are formed along the entire surface of the fragment. |
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Keywords: | KeywordHeading" > Chondracanthus chamissoi Chile Seaweed Vegetative reproduction |
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