Ecology of the burrowing amphipod, Pontoporeia affinis, in Lake Michigan / by Wayne Paul Alley.

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TABLE 10. The grand geometric mean number of Pontoporeia affinis
for the three sampling seasons of the seven stations of the C transect.
H represents the results of the Kruskal-Wallis test.
Average
Station Depth m 1964 1965 1966 H
C- 1 20 77 72 99 3.20
C-2 50 80 85 84.12
C-3 77 56 67 63 13.47**
C-4 108 46 51 49.62
C-5 157 39 47 43 1.95
C-6 99 49 -58 49 2.63
C-7 55 65 72 70.73,-, Significant at 1%
TABLE 11. Spearman rank correlation coefficients indicating the degree
of association that occurred among the patterns of seasonal abundance
of Pontoporeia affinis for stations C-2 thru C-7 for the three sampling
seasons.
C-2 C-3 C-4 C-5 C-6
C-3.648 4
C-4.566. 578.
C-5.258.297. 737"7*
C-6. 637**.350.765* *.721**
C-7. 783**.594*.658*.'.495.709.

* Significant at 5%,** Significant at 1%