. Bulletin - United States National Museum. Science. BATHYPELAGIC SQUID BATHYTEUTHIS 179 2 4 6 8 10 12. ^^m^^^^^^ Figure 68.—a, c, Total number of 3-meter IKMT tows (clear area) and number of successful tows (hatched area) at 250-meter increments in the South Pacific (a) and South Pacific Convergence (c) regions of the Antarctic Ocean, b, d, Percentages (clear area) of the total number of 3-meter IKMT tows (hatched area) that captured Bathyteuthis abyssicola at 250-meter increments in the South Pacific (b) and South Pacific Convergence (d) regions of the Antarctic Ocean. were successful and av
. Bulletin - United States National Museum. Science. BATHYPELAGIC SQUID BATHYTEUTHIS 179 2 4 6 8 10 12. ^^m^^^^^^ Figure 68.—a, c, Total number of 3-meter IKMT tows (clear area) and number of successful tows (hatched area) at 250-meter increments in the South Pacific (a) and South Pacific Convergence (c) regions of the Antarctic Ocean, b, d, Percentages (clear area) of the total number of 3-meter IKMT tows (hatched area) that captured Bathyteuthis abyssicola at 250-meter increments in the South Pacific (b) and South Pacific Convergence (d) regions of the Antarctic Ocean. were successful and averaged specimens per total tow, a consider- able increase over the area to the south. In the Drake Passage no cap- tures were made in eight tows to less than 1000 m, whereas four of seven tows at the same depths in the Drake Passage Convergence caught B. abyssicola. No tows were made between 1000-1250 m in the Drake Passage Convergence, but every tow (12) below 1250 m was suc- cessful ; success was slightly less complete below 1250 m in the Drake Passage (figs. 67a-d). Therefore, in the convergence zone the tows were more successful and caught more specimens. The combined suc- cess of the two Drake Passage areas was 66%. The South Pacific region produced 42 successful catches () from 64 tows. The average catch was specimens per total tow. Forty-three tows in the South Pacific Convergence yielded 30 successes or of the total for the region, only slightly higher than in the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off.
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