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dc.creatorGuerrero,Aurora
dc.creatorArana,Patricio
dc.date2009-01-01
dc.date.accessioned2019-05-03T13:26:59Z
dc.date.available2019-05-03T13:26:59Z
dc.identifierhttps://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0718-560X2009000300006
dc.identifier.urihttp://revistaschilenas.uchile.cl/handle/2250/87623
dc.descriptionGolden crab (Chaceon chilensis) specimens were analyzed after being caught with traps by artisanal fishermen off Robinson Crusoe Island, Juan Fernández Archipelago, Chile. Of the 13,027 individuals caught between 300 and 1,000 m depth, 97.9% were male (12,754) and the rest female (273). The carapace length (CL) of the sampled crabs was measured and, on average, the males (CL: 118.9 mm) were larger than the females (CL: 94.3 mm). On the north side of the island, the specimens presented lower average sizes (112.2 mm) whereas, in the remaining zones, the average carapace lengths were similar (CL: 117.1-119.5 mm). In bathymetric terms, an increasing trend was seen between average size and depth, with sizes over 123 mm CL found beginning at 750 m depth. A comparison of linear regressions between the carapace length and chela length of males revealed physical maturity at 100 mm CL, whereas a numerical analysis showed the size at first sexual maturity (SSM50%) to be 109 mm CL.
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dc.languageen
dc.publisherPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
dc.relation10.4067/S0718-560X2009000300006
dc.rightsinfo:eu-repo/semantics/openAccess
dc.sourceLatin american journal of aquatic research v.37 n.3 2009
dc.subjectgolden crab
dc.subjectChaceon chilensis
dc.subjectsize distribution
dc.subjectmaturity
dc.subjectJuan Fernandez Archipelago
dc.subjectChile
dc.titleSize structure and sexual maturity of the golden crab (Chaceon chilensis) exploited off Robinson Crusoe Island, Chile


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