. The Eastern Bering Sea Shelf : oceanography and resources / edited by Donald W. Hood and John A. Calder . SEALS PER HOUR Do f^ â 57-30N 10 or more ⢠Unit occupied for less than hour â 57-OON 326 325 324 323 322 321 320 319 318 317 £ 316 315 314 313 I ' â 312 311 310 I ' I 309 308 307 57-50N â 56-30N 56-OON 55-50N 171-OOW 170-OOW 169-OOW Figure 52-8. Number of seals seen per hour of effort in each area unit occupied by a research vessel in September 1974 in the eastern Bering Sea. The sides of each unit measure 10 minutes of latitude by 10 minutes of longitude. U
. The Eastern Bering Sea Shelf : oceanography and resources / edited by Donald W. Hood and John A. Calder . SEALS PER HOUR Do f^ â 57-30N 10 or more ⢠Unit occupied for less than hour â 57-OON 326 325 324 323 322 321 320 319 318 317 £ 316 315 314 313 I ' â 312 311 310 I ' I 309 308 307 57-50N â 56-30N 56-OON 55-50N 171-OOW 170-OOW 169-OOW Figure 52-8. Number of seals seen per hour of effort in each area unit occupied by a research vessel in September 1974 in the eastern Bering Sea. The sides of each unit measure 10 minutes of latitude by 10 minutes of longitude. Units occupied for less than hour are marked X (Marine Mammal Division 1975).
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