Induction of settlement and metamorphosis of the scallop <i>Argopecten purpuratus</i> Lamarck by excess K<SUP>+</SUP> and epinephrine

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dc.contributor.authorMartinez, G
dc.contributor.authorAguilera, C
dc.contributor.authorCampos, EO
dc.date.accessioned2025-01-21T01:32:03Z
dc.date.available2025-01-21T01:32:03Z
dc.date.issued1999
dc.description.abstractSettlement and metamorphosis of marine invertebrate larvae is known to be triggered by specific environmental cues. Neuroactive compounds, particularly some monoamines, have been implicated in this process, and depolarization of receptor cell membranes has been suggested to occur as a response to them. An increase of extracellular K+ in seawater has been used as an effective inducer of these processes for some species. This study describes work designed to assay effects of epinephrine and excess K+ as inducers of settlement and metamorphosis of larvae of the scallop Argopecten purpuratus. Epinephrine and excess K+ increased the percentages of settlement, metamorphosis, and survival of these larvae. Responses were dose-dependent, with a maxima under 10(-5) M (epinephrine) and 10 mM (K+). In the case of epinephrine, the responses did not vary significantly with the time of exposure. An analysis of size and energy content of larvae induced to metamorphosis by the different methods showed that larvae induced with epinephrine produced postlarvae that were significantly smaller in size and energetically weaker than postlarvae produced using excess K+ or no added exogenous inducer.
dc.fuente.origenWOS
dc.identifier.eissn1943-6319
dc.identifier.issn0730-8000
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/97196
dc.identifier.wosidWOS:000081812600006
dc.issue.numero1
dc.language.isoen
dc.pagina.final46
dc.pagina.inicio41
dc.revistaJournal of shellfish research
dc.rightsacceso restringido
dc.subjectArgopecten purpuratus larvae
dc.subjectmetamorphosis
dc.subjectscallops
dc.subjectsettlement
dc.subject.ods14 Life Below Water
dc.subject.ods13 Climate Action
dc.subject.ods15 Life on Land
dc.subject.odspa14 Vida submarina
dc.subject.odspa13 Acción por el clima
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.titleInduction of settlement and metamorphosis of the scallop <i>Argopecten purpuratus</i> Lamarck by excess K<SUP>+</SUP> and epinephrine
dc.typeartículo
dc.volumen18
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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