Breeding biology and population structure of the intertidal crab <i>Petrolisthes laevigatus</i> (Anomura: Porcellanidae) in central-southern Chile

Simple item page
dc.contributor.authorLardies, MA
dc.contributor.authorRojas, JM
dc.contributor.authorWehrtmann, IS
dc.date.accessioned2025-01-21T01:08:18Z
dc.date.available2025-01-21T01:08:18Z
dc.date.issued2004
dc.description.abstractThe present study describes the seasonal reproductive cycle and population structure of the porcellanid crab Petrolisthes laevigatus , a typical inhabitant of the rocky intertidal. A total of 960 individuals (including 372 females) was collected in monthly samples from October 1993 to December 1994 in central-southern Chile. Ovigerous females were present between August and December, and were absent between January and July. The breeding season started during late winter (August), and females with embryos close to hatching occurred between October and end of spring (December). Considering the gonadosomatic index and the duration of the incubation period, it is concluded that P. laevigatus has a markedly seasonal breeding period with probably two successive spawnings per female per season. Our results compared with previous studies in temperate intertidal porcellanids suggest a lower structural variability of the population during the sampling period, but a pronounced seasonal variation in both sex ratio and abundance. The influence of environmental habitat conditions (i.e. temperature) is suggested to be responsible for the lower variation in the crab population size structure in ovigerous females, and the almost constant size distribution observed in males.
dc.fuente.origenWOS
dc.identifier.doi10.1080/0022293021000016543
dc.identifier.eissn1464-5262
dc.identifier.issn0022-2933
dc.identifier.urihttps://doi.org/10.1080/0022293021000016543
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/96451
dc.identifier.wosidWOS:000186298000004
dc.issue.numero3
dc.language.isoen
dc.pagina.final388
dc.pagina.inicio375
dc.revistaJournal of natural history
dc.rightsacceso restringido
dc.subjectintertidal
dc.subjectPorcellanidae
dc.subjectreproductive cycle
dc.subjectgonadosomatic index
dc.subjectsex ratio
dc.subject.ods14 Life Below Water
dc.subject.ods15 Life on Land
dc.subject.odspa14 Vida submarina
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.titleBreeding biology and population structure of the intertidal crab <i>Petrolisthes laevigatus</i> (Anomura: Porcellanidae) in central-southern Chile
dc.typeartículo
dc.volumen38
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
Files
Collections
Artículos de revistas