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Table 1 Results of statistical pairwise comparisons (test values χ 2 and p-values) of rainbow trout ( Oncorhynchus mykiss ) populations after exposure to Flavobacterium columnare (see Figure  2  for survival data)

From: Starvation can diversify the population structure and virulence strategies of an environmentally transmitting fish pathogen

  Ancestor Starved Rhizoid Starved rough
χ 2 p-value χ 2 p-value χ 2 p-value
Ancestor       
Starved Rhizoid 33,886 < 0.001     
Starved Rough 92,627 < 0.001 120,889 < 0.001   
Control 227,251 < 0.001 219,356 < 0.001 46,401 < 0.001
  1. Fish were exposed to the ancestral virulent rhizoid isolate and rhizoid and rough isolates isolated after starvation in lake water for 149 days (5 months). Control populations were exposed to sterile culture medium. Kaplan Meier survival analysis for whole data χ 2 = 33.89, p < 0.001.