BENTHIC ALGAL SPORES SURVIVING DIGESTION BY SEA-URCHINS

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dc.contributor.authorSANTELICES, B
dc.contributor.authorCORREA, J
dc.contributor.authorAVILA, M
dc.date.accessioned2025-01-23T19:43:56Z
dc.date.available2025-01-23T19:43:56Z
dc.date.issued1983
dc.description.abstractPresent ideas on benthic algal adaptations to animal herbivory focus mainly on defensive and escape mechanisms of settled plants, and disregard the ability of algal reproductive bodies to escape from digestion by animals. To test this hypothesis, 150 individuals of the common Chilean sea urchin, T. niger Molina, were collected over a period of 7 mo., covering spring through fall. Fifty were examined for gut contents which revealed a total of 31 algal species, 62.9% of which could be categorized as opportunists and 37.1% as late successional forms. When the contents of fecal pellets were cultured the resulting algal species that had successfully resisted digestion by means of incomplete digestion or protective spore walls showed 84.6% as opportunists and 15.4% as late successional forms. There was no significant correlation between frequency of occurrence in the gut contents and in the fecal cultures, indicating that digestion survival depended on factors other than abundance. The capacity to survive digestion may play a role in the abundance of these species in overgrazed areas.
dc.fuente.origenWOS
dc.identifier.eissn1879-1697
dc.identifier.issn0022-0981
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/99880
dc.identifier.wosidWOS:A1983RB55900005
dc.issue.numero3
dc.language.isoen
dc.pagina.final269
dc.pagina.inicio263
dc.revistaJournal of experimental marine biology and ecology
dc.rightsacceso restringido
dc.subject.ods13 Climate Action
dc.subject.ods15 Life on Land
dc.subject.ods14 Life Below Water
dc.subject.odspa13 Acción por el clima
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.subject.odspa14 Vida submarina
dc.titleBENTHIC ALGAL SPORES SURVIVING DIGESTION BY SEA-URCHINS
dc.typeartículo
dc.volumen70
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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