WENNER AND WENNER: CRUSTACEANS FROM COASTAL HABITATS 



WINTER 



Cape Vj 

 Canoveral f 



M 



Figure 1.— Location and number of collections (in parentheses) from each stratum during seasonal sampling periods. Average temperature 

 and salinity conditions during sampling are noted for each stratum. 



Statistically significant differences in biomass, 

 number of species, and number of individuals be- 

 tween seasons were determined by the Kruskal- 

 Wallis analysis of variance by ranks (Zar 1984). This 

 nonparametric equivalent of analysis of variance 

 was used because a logarithmic transformation 

 failed to normalize the data. The nonparametric ana- 

 log of the Tukey multiple comparison test (Zar 1984) 

 was used following rejection of the null hypothesis 

 to determine between which of the samples signifi- 



cant differences occurred. The rejection level for the 

 null hypothesis in all statistical tests was a = 0.05. 

 Cluster analysis was used to determine seasonal 

 patterns of similarity among strata and to define 

 assemblages of decapod and stomatopod crusta- 

 ceans. Prior to analysis, data from standard tows 

 during a season were pooled within each stratum. 

 Data were reduced to eliminate species which oc- 

 curred in only one stratum during all seasons. The 

 rationale to exclude these species was that they did 



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