Contribution to the biology of the spider crabs Maiopsis panamensis Faxon, 1893 and Stenocionops ovata (Bell, 1835) (Decapoda: Majoidea) from the Gulf of California, Mexico

Morphological data from incidental captures in the Gulf of California of the spider crabs Maiopsis panamensis and Stenocionops ovata are presented. Sex ratios, carapace width and length distributions by sex, weight distribution by sex, and ovigerous female frequency are reported. New maximum values...

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Autores principales: Villalejo-Fuerte,Marcial, Ceballos-Vázquez,Bertha P, Arellano-Martínez,Marcial, García-Domínguez,Federico
Lenguaje:English
Publicado: Universidad de Valparaíso. Facultad de Ciencias del Mar 2001
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572001000200008
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Sumario:Morphological data from incidental captures in the Gulf of California of the spider crabs Maiopsis panamensis and Stenocionops ovata are presented. Sex ratios, carapace width and length distributions by sex, weight distribution by sex, and ovigerous female frequency are reported. New maximum values for the size of the branchial width of the carapace in males of both species have been observed. 70 mm wider than previously recorded in M. panamensis and a 9.5 mm wider in S. ovata. Moreover, the presence of M. panamensis along the West Coast of the Gulf of California has been registered, out of its limit of the reported distribution.