EFFECT OF ENCRUSTING BRYOZOANS ON THE PHYSIOLOGY OF THEIR ALGAL SUBSTRATUM

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dc.contributor.authorMUNOZ, J
dc.contributor.authorCANCINO, JM
dc.contributor.authorMOLINA, MX
dc.date.accessioned2025-01-23T19:22:30Z
dc.date.available2025-01-23T19:22:30Z
dc.date.issued1991
dc.description.abstractTraditionally, colonies of encrusting epiphytic bryozoans have been regarded as biotic factors reducing photosynthetic performance in benthic algae. In this study we determined under laboratory conditions the effects of Membranipora tuberculata on the photosynthetic efficiency of the rhodophyte Gelidium rex.
dc.description.abstractEncrusting bryozoans reduce to 44% the incident light reaching the algal thallus. However, concentrations of chlorophyll a and other accessory pigments are significantly higher in encrusted than in non-encrusted thalli. Consequently, photosynthetic efficiency is almost identical in both types of thalli. Although non-encrusted thalli showed a higher Photosynthetic V(max) due to higher levels of light reaching the algae, encrusted thalli exhibited a compensatory effect at low photon flux density and reached a similar P(max) value. The detrimental effect of M. tuberculata on photosynthesis could be partially compensated by CO2 released from bryozoan cells, as G. rex preferred CO2 over HCO3 as a source of photosynthetic inorganic carbon. These results suggest that physiological interaction between bryozoans and algae, involving the interchange of metabolic substances, are likely to be important.
dc.fuente.origenWOS
dc.identifier.issn0025-3154
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/99048
dc.identifier.wosidWOS:A1991GQ86900011
dc.issue.numero4
dc.language.isoen
dc.pagina.final882
dc.pagina.inicio877
dc.revistaJournal of the marine biological association of the united kingdom
dc.rightsacceso restringido
dc.subject.ods14 Life Below Water
dc.subject.ods15 Life on Land
dc.subject.ods13 Climate Action
dc.subject.odspa14 Vida submarina
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.subject.odspa13 Acción por el clima
dc.titleEFFECT OF ENCRUSTING BRYOZOANS ON THE PHYSIOLOGY OF THEIR ALGAL SUBSTRATUM
dc.typeartículo
dc.volumen71
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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