CONTENTS 



FIGURES—Continued 



Page 



16 Percentage frequency of mean grain size 



(phi) at all stations 40 



17 Percentage frequency of mean grain size 



(millimeters) at all stations 41 



18 Percentage frequency of standard deviation at 



all stations 43 



19 Percentage frequency of skewness at all 

 stations 



20 Percentage frequency of kurtosis at all 

 stations 



45 



46 



21 Plug sampler and sieve used for quantitative 



benthic studies 51 



22 Extruded plug samples and related gear used 



for benthic sampling 52 



23 A large inner tube and tub with four plug 



samples before sampling 53 



24 Accumulative number of species taken in 12 plug 



samples at five stations '. 55 



25 Average number of species in the top, bottom, 

 and combined top and bottom parts of the sample 



at the five transect stations and stations A and B 86 



26 Average number of species in the top, bottom, and 

 combined top and bottom parts of the sample on 



the nine transects 87 



27 Average number of individuals in the top, bottom, and 

 combined top and bottom parts of the sample at the five 

 transect stations and stations A and B 88 



28 Average number of individuals in the top, bottom, and 

 combined top and bottom parts of the sample on the 



nine transects 89 



