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Table 2 Monthly abundance (number of individuals) of each sex and ovigerous condition, as well as monthly sex ratio at Saint Peter and Saint Paul Archipelago, Brazil

From: Biology of Grapsus grapsus (Linnaeus, 1758) (Brachyura, Grapsidae) in the Saint Peter and Saint Paul Archipelago, Equatorial Atlantic Ocean

Months Male total Female Total OV% Sex ratio
NO OV Total M:F Sig
Feb 2003 74 17 17 34 108 50.0 1:0.5 *
Apr 34 17 7 24 58 29.2 1:0.7 NS
Jul 41 18 3 21 62 14.3 1:0.5 *
Nov 25 24 7 31 56 22.6 1:1.2 NS
Mar 2004 26 17 7 24 50 29.2 1:0.9 NS
Aug 29 18 6 24 53 25.0 1:0.8 NS
Nov 53 31 27 58 111 46.6 1:1.1 NS
Jan 2005 35 42 14 56 91 25.0 1.1.6 *
May 38 33 5 38 76 13.2 1:1 NS
Jul 22 17 1 18 40 5.6 1:0.8 NS
Total 377 234 94 328 705 28.7 1:0.9 NS
  1. NO not ovigerous, OV ovigerous, OV% percentage of ovigerous females in relation to total females
  2. * P < 0.05