. (2) (2X0 ;-50 144 85 200 71 lOO lOO 153 50 388 lOO 75 42 471 60 342 70 533 50 lOO 100 47 146 ISO 100 118 lOO 630 176 276 415 143 33 21 17 109 269 84 153 lOO 465 57 134 95 lOO 47 75 22 527 91 164 77 241 231 DATE ST 58 54 (/I 50% 55 g 52 O 482 40z 36 ~ u 32 o 28 5 24"^ 20 £ ,6^ 12 Ul e N2MEAS- URED Fig. 136. Developmental condition of the small and staple whale food in summer. For vertical scale see legend to Fig. 107. fall mainly within a length range of 25-44 min., although exceptionally, as for instance at Station 1511, backward swarms may be encountered with a dominant length range of
. (2) (2X0 ;-50 144 85 200 71 lOO lOO 153 50 388 lOO 75 42 471 60 342 70 533 50 lOO 100 47 146 ISO 100 118 lOO 630 176 276 415 143 33 21 17 109 269 84 153 lOO 465 57 134 95 lOO 47 75 22 527 91 164 77 241 231 DATE ST 58 54 (/I 50% 55 g 52 O 482 40z 36 ~ u 32 o 28 5 24"^ 20 £ ,6^ 12 Ul e N2MEAS- URED Fig. 136. Developmental condition of the small and staple whale food in summer. For vertical scale see legend to Fig. 107. fall mainly within a length range of 25-44 min., although exceptionally, as for instance at Station 1511, backward swarms may be encountered with a dominant length range of only 21-28 mm. In March the yearling swarms tend to fall mainly within a length range of 33-48 mm., although again exceptionally, as for instance at Station 658, surprisingly backward swarms may be encountered late in the month in which the females are still in stage i and the length range still dominantly 21-28 mm. as in February. (5) Throughout the season the adult swarms fall dominantly within a length range of 44-60 mm., the majority of them, however, in the 48-56 mm. range. (b) Southern zone (i) As in the northern zone the staple whale food is represented by a heterogeneous assemblage of yearling and adult swarms, the former, however, slowly outgrowing their early adolescent phase and in many instances persisting until well into March with the small whale food as an important or dominant component of the swarm length range.
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Keywords: ., bookcentury1900, booksubjectocean, booksubjectscientificexpediti
