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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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