Page 



6. The percent of stomachs containing food in relation to the time of collection, 1963. . . 13 



7. Percent of stomach content volume and percent of occurrence in stomachs of the 



principal food species found in 1963 15 



Appendix A tables : 



1. Number and relative abundance of seals seen in Bering Sea, by 10-day periods, 1 July 



to 5 September 1963 19 



2. Number and relative abundance of seals collected in Bering Sea, by 10-day periods, 



1 July to 5 September 1963 19 



3. Number and relative abundance of seals seen and collected 1958-63 20 



4. Grouping of 5,790 seals sighted in Bering Sea, 1 July to 5 September 1963 20 



5. Total seals sighted, collected, wounded and lost, and killed and lost, 1958-63 20 



6. Number and percent of seals shot at sea that were collected, wounded and lost, or 



killed and lost, 1958-63 21 



7. Monthly mean lengths of pregnant fur seals collected by U.S. research vessels in 



Bering Sea in 1963 21 



8. Monthly mean weights of pregnant fur seals collected by U.S. research vessels in 



Bering Sea in 1963 21 



9. Monthly mean lengths of post partum fur seals collected by U.S. research vessels in 



Bering Sea in 1963 22 



10. Monthly mean weights of post partum fur seals collected by U.S. research vessels in 



Bering Sea in 1963 23 



1 1. Monthly mean lengths of nonpregnant fur seals collected by U.S. research vessels in 



Bering Sea in 1963 24 



12. Monthly mean weights of nonpregnant fur seals collected by U.S. research vessels in 



Bering Sea in 1963 25 



13. Monthly mean lengths of male fur seals collected by U.S. research vessels in Bering 



Sea in 1963 26 



14. Monthly mean weights of male fur seals collected by U.S. research vessels in Bering 



Sea in 1963 27 



15. Mean lengths of fur seal fetuses collected by U.S. research vessels in eastern Pacific, 



1958-63 28 



16. Mean weights of fur sealfetuses coUectedby U.S. research vessels in eastern Pacific, 



1958-63 29 



Appendix A figures : 



1 . Locations where fur seal stomachs collected in 1 963 contained Clupea harengus pallasi , 



Bathylagidae, and Ammodytes hexapterus . The 1 00-fathom depth curve is shown as a 

 dotted line 30 



2. Locations where fur seal stomachs collected in 1963 contained Oncorhynchus sp., 



Theragra chalcogrammus , Gadidae, and Pleurogrammus monopterygius . The 1 00- 

 fathom depth curve is shown as a dotted line 31 



3. Locations where fur seal stomachs collected in 1963 contained Mallotus villosus . 



The 1 00-fathom depth curve is shown as a dotted line 32 



4. Locations where fur seal stomachs collected in 1963 contained Myctophidae, Tricho- 



dontidae, and Gonatus magister . The 1 00-fathom depth curve is shown as a dotted 



line 33 



5. Locations where fur seal stomachs collected in 1963 contained Sebastodes sp., 



Pleuronectidae, Reinhardtius hippoglossoides , and Gonatus fabricii . The 1 00-fathom 



depth curve is shown as a dotted line 34 



6. Locations where fur seal stomachs collected in 1963 contained Gonatopsis sp. The 



1 00-fathom depth curve is shown as a dotted line 35 



7. On calm days sleeping fur seals can be plainly seen for a considerable distance. With 



flippers folded they look like a drifting piece of dark wood 36 



8. When moving rapidly seals often leap out of the water. This behavior is most typical 



of young animals and is unusral for mature bulls or females in late pregnancy. ... 36 



