Hiles Ralph (continued) 



19lt2o Growth of the rock bass, Ambloplites rupestris ( Raf inesque) , 

 in five lakes of northeastern Wisconsin. Trans. Am. Fish. 

 Soc, Volo 71 (19U1), pp. 131-lli3. 



Comparison of growth and length-weight relationship in 

 different populations. Growth curves of rock bass from lakes with 

 medivun-hard to hard water were more distinctly sigmoid and had 

 larger increments in later years of life than curves for stock 

 from soft- water lake. Order of the stocks with respect to rela- 

 tive heaviness followed the order of the lakes as to hardness of 

 water. 



19U3. Mathematical relationship between the length and the age 

 of the rock bass, Ambloplites rupestris (Rafinesque) . 

 Pap. Mich. Acad. Sci., Arts, and Lett.^ Vol, 28 (19U2), 

 ppo 33I-3UI0 



Derivation of equation on assumption that annual percentage 

 growth in length decreases at constant percentage rate, and ap- 

 plication to groTnrt.h of two stocks of rock bass. Equation. 

 L = K (CB + 1) {C^A 1) (C|^ 1)»'»(C|*^+ 1), where L = length, 

 t = age in years, and K, C, and B = constants fitted growth of one 

 stock through 9 years of life 5 in another the equation fitted over 

 6 years but yielded values that were too high for the seventh, 

 eighth, and ninth years. 



19U8. Standardization of methods of expressing lengths and 



weights of fish. Trans, Am. Fish. Soc, Vol. 75 (19U5), 

 ppo 157-16U. 



Recommendation for uniform use of total length (tip of 

 head, mouth closed, to tip of tail, lobes compressed) and for 

 English units of weight and measurement (with decimal fractions) 

 in all but highly technical papers. 



i9U9. Trends in the lake trout fishery of Lake Huron through 



19i;6o Trans. Am. Fish. Soc, Vol. 76 (19U6), pp. 121-lii7, 



Review of available statistics on production, 1879-19 U6, 

 and detailed treatment of annual fluctuations in production, 

 abundance, and fishing intensity in local districts of the U. S„ 

 waters, 1929-i9U6, v;ith special reference to the decline that 

 followed the invasion and spread of the sea lamprey. 



