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Table 4 Numbers of males and females (carapace width >10 mm) collected in traps and in population surveys, in mudflat and salt marsh, and in three sites: Mar Chiquita, Bahía Blanca and San Antonio Bay

From: The influence of habitat, season and tidal regime in the activity of the intertidal crab Neohelice (=Chasmagnathus) granulata

  Mudflat Salt marsh
Males χ2, p Females Males χ2, p Females
Mar Chiquita       
 Traps 1,315 338.6*** 315 199 46.1*** 53
 Population 161 0.8 ns 139 326 17.5*** 193
Bahía Blanca       
 Traps 63 1.5 ns 44 377 41.2*** 168
 Population 109 4.55* 69 122 2.7 ns 87
San Antonio       
 Traps 1,743 568.2*** 311 2,102 645.6*** 407
 Population 106 3.7 ns 70 224 4.3* 165
  1. χ2: statistics of Chi-square test, *** p < 0.001, ** p < 0.01, * p < 0.05, ns non-significant
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Helgoland Marine Research

ISSN: 1438-3888

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