. MONTH DATE STATION ADOL 6 FURC 5 " 40 36 UJ 32 i 24 20? 16 i 12 ui 18 100 100 20O 32 lOO 197 74 1570 100 143 1637 86 55 57 87 266 189 99 S = SAMPLE FROM SIGHTED SWARM Fig. 119. Developmental condition of young swarms in the West Wind region south-east of Kerguelen compared with the corresponding condition in the Weddell zone at the same, or approximately the same, time. (2) The absolute dominance of the early adolescent over the Sixth Furcilia encountered in the Weddell zone in November and the virtual disappearance of the latter from the plankton before the end of the month. (3) The su
. MONTH DATE STATION ADOL 6 FURC 5 " 40 36 UJ 32 i 24 20? 16 i 12 ui 18 100 100 20O 32 lOO 197 74 1570 100 143 1637 86 55 57 87 266 189 99 S = SAMPLE FROM SIGHTED SWARM Fig. 119. Developmental condition of young swarms in the West Wind region south-east of Kerguelen compared with the corresponding condition in the Weddell zone at the same, or approximately the same, time. (2) The absolute dominance of the early adolescent over the Sixth Furcilia encountered in the Weddell zone in November and the virtual disappearance of the latter from the plankton before the end of the month. (3) The survival of the Sixth Furcilia in small numbers between 30° and 65° E in November and in the West Wind region south-east of Kerguelen, in one instance (Station 1640) in large numbers, into early December. (4) The overall backward condition of the November-December swarms of East Wind, or prob- able East Wind, origin as compared with the corresponding condition of many of their contemporaries in the Weddell stream. Summer. The continued survival of the Sixth Furcilia in the higher latitudes of the East Wind drift, but nowhere else, over spring and into summer (January-March), 11-13 months after the first major risings (p. 310, Fig. 74) take place in this coastwise stream, is shown in Fig. 120. The numbers that so survive it will be seen are negligible. The gross distribution of the massed surface larvae is shown by seasonal symbols in Fig. 121. In order to bring the inadequately sampled First Calyptopis (p. 360) into the distributional picture and further to bring together on a single page as much relevant information as possible, the data from the vertical as well as from the stramin net hauls have been used in the construction of this figure throughout. The seasonal symbols employed have been used only where gatherings of major signifi- cance have been recorded, hauls of less than 100 in the stramin nets and of less than 50 in the three uppermost vertical nets being distinguis
Size: 4201px × 1190px
Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, booksubjectocean, booksubjectscientificexpediti
