Munida evermanni Benedict, 1901

Vazquez-Bader, Ana Rosa & Gracia, Adolfo, 2016, Diversity and distribution of Chirostyloidea and Galatheoidea (Decapoda, Anomura) in the Southern Gulf of Mexico, ZooKeys 612, pp. 1-30 : 8-9

Taxon classification Animalia Decapoda Munididae

Munida evermanni Benedict, 1901

Material examined.

BATO stn. 32, 1 male. BIOREPES 1 stn.5, 12 males, 6 females, 2 ovigerous females, stn 6, 19 males, 9 females, 9 ovigerous females 9, stn. 8, 2 males, 1 female, 1 ovigerous female, stn, 20 10 males, 3 females, 8 ovigerous females, stn 22, 2 males. BIOREPES 2 stn. 14, 12 males, stn. 16, 8 males, 1 female, 8 ovigerous females, stn. 18, 2 males, 1 female, 15 ovigerous females, stn. 21, 2 males, 1 ovigerous female, stn. 32, 1 ovigerous female. COBERPES 2011 stn. E1, 30 males, 29 ovigerous females. COBERPES 3 stn. B9, 2 males.

Remarks.

This species was the third one in abundance with 197 individuals. They were collected in sectors SSW, WSW and SSE, from Yucatán: N of Celestún, N Alacranes Reef, Puerto Progreso to Campeche, off Términos Lagoon. The maximum abundance was observed in summer (68.5%; 257.4-863.0 m) mainly in the SSE sector (55.8%; 305.3-346.0 m). The overall sex ratio (1.07 M: 1 F) was not statistical significantly different. The mean CL size of ovigerous females was larger x = 14.6 ± 1.569 (min. 10.5, max. 18.3 mm) than males x = 13.6 ± 2.189 (min. 7.1, max. 18.0 mm) and females x = 13.5 ± 2.747 (min. 9.7, max. 19.4 mm). The smallest CL male sizes were observed in shallower depths, while the largest ones were found in deeper areas (F = 12.52; p = 0.00) (Fig. 5a). The smallest sizes were mainly reported in spring and the largest in autumn (F = 8.69; p = 0.00) (Fig. 5b). The ovigerous females were collected in spring and summer, and we found a significant difference in CL by depth (F = 16.46; p = 0.00) (Fig. 5c). The sex ratio in spring and summer presented minimum differences that were not statistically significant. The material collected represents the first records in the sectors SSW, WSW, SSE. In addition, we increase the deeper bathymetric range to 863 m.