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Table 3 Correlation coefficients among size measurements, immune parameters, and Perkinsus olseni infection intensities of Manila clams. Data reflect measurements for all clams (n = 40)

From: High parasite burden increases the surfacing and mortality of the Manila clam (Ruditapes philippinarum) in intertidal sandy mudflats on the west coast of Korea during hot summer

  Shell length Wet weight CI No. of P. olseni Live (%) Necrosis (%) Apoptosis (%) Dead (%)
Shell length        
Wet weight 0.72**       
CI -0.14 0.49*      
No. of P. olseni 0.01 -0.45* -0.62**     
Live (%) -0.09 0.32 0.58** -0.47*    
Necrosis (%) 0.14 -0.31 -0.65** 0.49* -0.98**   
Apoptosis (%) -0.17 -0.10 0.16 -0.14 -0.26 0.11  
Dead (%) 0.06 -0.32 -0.52* 0.50* -0.97* 0.92** 0.21
Phagocytic index (%) -0.18 0.18 0.45* -0.29 0.83** -0.81** -0.40 -0.72**
  1. *P < 0.05, **P < 0.01
  2. Abbreviation: CI, condition index