Ralph and Long 



Chapter 35 



Productivity in California-Observations At Sea 



Table 2 Grouping of juveniles and adults off the coast of Calif ornia in four areas. Both defininte and probable categories of age are included. Groups are 

 broken down by number of birds in group of each age, and number of each group type 1 . For groups containing more than three birds, the range of group size 

 is also shown 



1 For example, in Trinidad there were 14 groups of 2 birds, consisting of 1 adult and 1 unknown age individual, 80 groups of 2 birds consisting of 2 adults, etc. 



Table 3 Distribution of adult and juvenile Marbled Murrelets according to distance from shore off the 

 coast of California, from boat surveys only 



Distance 

 from shore (m) 



Adults 



Juveniles 



Number 



Percent 1 



Number 



Percent 2 



Total 

 Number 



201-400 

 401-600 



601-800 

 801-1000 

 1001-1200 



1401-1600 



0.0 



17 



'Percent of total adults 

 2 Percent of total juveniles 



374 



USDA Forest Service Gen. Tech. Rep. PSW-152. 1995. 



