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Table 2 Spearman’s rank correlation coefficient values between abiotic variables of water and sediment and the percentage of Abra segmentum individuals having a shell length of ≤3.5 mm (ρ1) or density of A. segmentum (ρ2) at station B2

From: Life cycle, population dynamics, growth and production of Abra segmentum (Mollusca, Bivalvia) at low salinities in a Mediterranean lagoon

Variable

ρ1

 

ρ2

 

Water

 Salinity (psu)

0.315

NS

0.280

NS

 Temperature (°C)

0.699

*

0.035

NS

Sediment

 Temperature at 1 cm (°C)

0.733

*

0.133

NS

 Temperature at 5 cm (°C)

0.792

**

0.165

NS

 Organic matter (%)

0.420

NS

0.252

NS

  1. n = 12, NS not significant
  2. * P < 0.05, ** P < 0.01
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Helgoland Marine Research

ISSN: 1438-3888

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