Larval development of the intertidal barnacles <i>Jehlius cirratus</i> and <i>Notochthamalus scabrosus</i> (Cirripedia: Chthamalidae) under laboratory conditions

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dc.contributor.authorVenegas, RM
dc.contributor.authorOrtíz, V
dc.contributor.authorOlguín, A
dc.contributor.authorNavarrete, SA
dc.date.accessioned2025-01-21T01:31:16Z
dc.date.available2025-01-21T01:31:16Z
dc.date.issued2000
dc.description.abstractLarvae of the common intertidal chthamalid barnacles Jehlius cirratus and Notochthamalus scabrosus were obtained from mature adults collected in central and northern Chile and cultivated in the laboratory at temperatures typical of the conditions encountered by larvae in these regions. Morphological and developmental descriptions of the six naupliar stages and the cyprid stage of both species are given. Both species clearly present the general pattern of development for chthamalids, in which the structural characters of the cephalic shield and abdominal process, in conjunction with the utilization of the alphabetical setation formula for antennae, facilitate the identification and differentiation between larval stages. The average time of naupliar larval development of J. cirratus and N. scabrosus in sea-water temperature ranging 15-18 degrees C was 31 and 37 days, while larvae cultivated in temperatures ranging 18-20 degrees C completed naupliar development after 13 and 20.2 days, respectively. This represents a 58% and 45.5% reduction in naupliar development time with a three-degree increase in mean sea water temperature for J. cirratus and N. scabrosus, respectively. The development time from cyprid until settlement and metamorphosis of N. scabrosus lasted between 9 and 11 days, depending on the temperature, while cyprid development for J. cirratus lasted 8 days at 18-20 degrees C. The average sizes of the naupliar and cyprid stages were similar between the species at both temperature ranges. Although the increased temperature reduced the time of larval development, it did not significantly affect larval sizes.
dc.fuente.origenWOS
dc.identifier.issn0278-0372
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/97024
dc.identifier.wosidWOS:000088620600010
dc.issue.numero3
dc.language.isoen
dc.pagina.final504
dc.pagina.inicio495
dc.revistaJournal of crustacean biology
dc.rightsacceso restringido
dc.subject.ods15 Life on Land
dc.subject.ods13 Climate Action
dc.subject.ods14 Life Below Water
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.subject.odspa13 Acción por el clima
dc.subject.odspa14 Vida submarina
dc.titleLarval development of the intertidal barnacles <i>Jehlius cirratus</i> and <i>Notochthamalus scabrosus</i> (Cirripedia: Chthamalidae) under laboratory conditions
dc.typeartículo
dc.volumen20
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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