THE SEA OTTER IN THE EASTERN PACIFIC OCEAN 215 



Table 45. — Activities of a mated pair of sea otters during observations on 

 19, 20, and 21 August 1955 — Continued 



20 August, 1542-1910. The male left the female resting on the rock when he 

 continued food diving, but he remained close to her while she was in the 

 water. 



Elapsed time 



Number ( minutes ) Percent 



of Total of 



Activity periods On land In water minutes time 



Male: 













Feeding 



4 





79 



79 



38 



Groom and wash 



4 



1 



23 



24 



12 



Sleep and rest 



2 



52 



40 



92 



44 



Sexual behavior (play) 



5 



4 



8 



12 



6 



Investigate strange female 



1 





1 



1 



>1 



TotaL... 



16 



57 



151 



208 



100 



Female: 













Feeding 



2 





58 



58 



28 



Groom and wash 



1 



21 





21 



10 



Sleep and rest 



3 



108 



9 



117 



56 



Sexual behavior (play) 



2 



4 



8 



12 



6 



Total 8 133 75 208 100 



21 August, 1052-1820. The male left the female resting on the rock when he 

 continued food diving, but he remained close to her while she was in the water. 



Activity 



Number 



of 

 periods 



Elapsed time 

 (minutes) 



On land 



In water 



Total 

 minutes 



Percent 

 of 

 time 



Male: 



Feeding- 



Groom and wash. 

 Sleep and rest- 



Sexual behavior (play). 

 Sniff rock 



Total 



Female: 



Feeding 



Groom and wash 



Sleep and rest 



Sexual behavior (play). 



Total 



23 



442 



310 

 40 

 72 

 25 

 1 



448 



70 

 9 



16 

 5 

 >1 



100 



7 





247 



247 



56 



6 



9 



41 



50 



11 



8 



61 



65 



126 



28 



5 



5 



20 



26 



6 



26 



75 



373 



448 



100 



On 22 August a dense fog prevented detailed observations. 



Summary of activities of mated pair of otters on 19, 20, and 21 August 1955, 



during three observation periods totaling 749 minutes (12 hours, 29 minutes). 



Total elapsed time 



Male Female 



Activity 



Minutes 



Percent 



Minutes 



Percent 



Feeding 



389 



62 



305 



41 



Groom and wash . 



103 



14 



110 



14 



Sleep and rest 



183 



24 



262 



35 



Sexual play 



72 



10 



72 



10 



Sniff rock 



1 



>1 







Investigate strange female 



1 



>1 







