Discovery reports (1957) Discovery reports discoveryreports28inst Year: 1957 212 DISCOVERY REPORTS level. The second period of increase is apparently the greatest, although in the sub-Antarctic this may be due to a single very large volume of 10-5 cc. for the 50-0 m. sample at St. 2219. Table 4. The monthly variation in the mean total volume of plankton { the sum of all measure- ments from 1000 to o m.). Numbers of observations are given in brackets Zone January February March April May June Sub-Antarctic Antarctic 7-03 (6) 6-86 (30) 10-15 (J7) 9-18(14) 9-44 (8) 10-33(3!) 636 (5) 12-37(2
Discovery reports (1957) Discovery reports discoveryreports28inst Year: 1957 212 DISCOVERY REPORTS level. The second period of increase is apparently the greatest, although in the sub-Antarctic this may be due to a single very large volume of 10-5 cc. for the 50-0 m. sample at St. 2219. Table 4. The monthly variation in the mean total volume of plankton { the sum of all measure- ments from 1000 to o m.). Numbers of observations are given in brackets Zone January February March April May June Sub-Antarctic Antarctic 7-03 (6) 6-86 (30) 10-15 (J7) 9-18(14) 9-44 (8) 10-33(3!) 636 (5) 12-37(23) 5-72(10) 8-14(5) 5-51 (7) 8-93 (10) Zone July August September October November December Sub-Antarctic Antarctic 8-6i (7) i3-ii(7) 7-25 (6) 9-17 (9) 5-78 (10) n-6o (6) 8-28 (14) 9-07 (10) 8-87 (6) 7-53 (6) 8-92 (5) 9-25(11) SUB-ANTARCTIC 1 1 1 ANTARCTIC
Size: 2496px × 801px
Photo credit: © Bookend / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: archive, book, drawing, historical, history, illustration, image, page, picture, print, reference, vintage
