Number in subsample : 



133 



124 



134 



141 



146 



3,371 (total) 



FIGURE 2.— Length-frequency distri- 

 bution of a total sample of 3,371 bay 

 anchovies, and of each of five subsam- 

 ples taken from the total. (From Herke 

 1971.) 



If) 



o 



(M 



ID 

 CM 



s 



Stondard length m millimeters 



It is difficult to visualize, from inspection of the 

 cumulative length-frequency distributions, how 

 well the percentage of fish in each subsample 

 length group represents the percentage in the cor- 

 responding length group in the total sample. 

 Therefore, this comparison is shown graphically 

 (Figure 2) for the first five subsamples listed in 

 Table 1. 



Literature Cited 



Gushing, C. E., Jr. 



1961. A plankton sub-sampler. Limnol. Oceanogr. 

 6:489-490. 



Herke, w. H. 



1971. Use of natural, and semi-impounded, Louisiana 



tidal marshes as nurseries for fishes and crustaceans. 



Ph.D. Thesis, Louisiana State Univ., Baton Rouge, 264 p. 



University Microfilms, Ann Arbor, Mich. (Diss. Abstr. 



32:2654-B.) 

 1973. Spin-drying of preserved fishes and macroinverte- 



brates. Trans. Am. Fish. Soc. 102:643-645. 



HEWITT, G. S., AND R. E. Burrows. 



1948. Improved method for enumerating hatchery fish 

 populations. Prog. Fish-Cult. 10:23-27. 

 HICKLEY, P. 



1975. An apparatus for subdividing benthos samples. 

 Oikos 26:92-96. 



HIGHTOWER, G. M., K. T. KIMBALL, AND C. A. BEDINGER, JR. 



1976. A water-powered mechanical device for accurately 

 subsampling large numbers of nektonic organisms. 

 Trans. Am. Fish. Soc. 105:509-513. 



LEWIS, S. A., AND D. D. GARRIOTT. 



1971. A modified Folsom plankton splitter for analysis of 

 meter net samples. Proc. Annu. Conf. Southeast. Assoc. 

 Game Fish Comm. 24:332-337. 

 SIEGEL, S. 



1956. Nonparametric statistics for the behavioral sci- 

 ences. McGraw-Hill, N.Y., 312 p. 

 SODERGREN, S. 



1974. A simple subsampler for stream-bottom-fauna sam- 

 ples. Arch. Hydrobiol. 73:549-551. 



WILLIAM H. HERKE 



Louisiana Cooperative Fishery Research Unit 

 Louisiana State University 

 Baton Rouge, LA 70803 



494 



