The Eastern Bering Sea Shelf The Eastern Bering Sea Shelf : oceanography and resources / edited by Donald W. Hood and John A. Calder easternberingsea00hood Year: 1981 N X SD Phase! 101 I I Phase 2 372 Taking into account the advancement of egg development between the two phases, we can com- pare the abundance of some particular developmental stages during the two phases. While eggs of Stages I and II in Phase 1 remained 37 percent as Stage-Ill eggs in Phase 2, Stage III eggs in Phase 1 dropped to as low as 14 percent when they advanced to Stages IV-VI in Phase 2, even
The Eastern Bering Sea Shelf The Eastern Bering Sea Shelf : oceanography and resources / edited by Donald W. Hood and John A. Calder easternberingsea00hood Year: 1981 N X SD Phase! 101 I I Phase 2 372 Taking into account the advancement of egg development between the two phases, we can com- pare the abundance of some particular developmental stages during the two phases. While eggs of Stages I and II in Phase 1 remained 37 percent as Stage-Ill eggs in Phase 2, Stage III eggs in Phase 1 dropped to as low as 14 percent when they advanced to Stages IV-VI in Phase 2, even though it required almost the same length of time for these two groups to advance to consecutive stages (6-7 days at 3 C). Furthermore, the magnitude of reduction during the advancement from Stage III to Stage IV was times greater than that during the advancement from Stage II to Stage III. Thus, the change in abundance of the eggs is considered to be related to the difference of mor- tality and buoyancy of the developmental stages. Egg diameter Fig. 59-6 shows the frequency distributions of egg diameters observed in the present study. The range of egg diameters extended from to STAGE IV ^_^ N X SD 1111111 Phase 1 36 cu Phase 2 129 1375 1575 STAGE V N X SD lllllll Phase 1 30 1 I Phase 2 42 _1_
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