. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 66 Bulletin Museum of Comparative Zoology, Vol. 142, No. 1. H o N Zoo. ^00. o o • . * * • * * * 6oo. 8oo. 1000. 1500 BO C • fc 10 F ISH H R 20 30 Figure 48. Diurnal vertical distribution of A. lychnus determined by rate of capture with deptfi during the day (D) and night (N). A = Pacific (California); B = Pacific (Chile); C = Tropical E Pacific. marily restricted to the tropical Pacific; found in abundance in the eastern Pacific between 35°N and 35°S; distribution nar- rows across the equatorial Pacific as far as 160^
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 66 Bulletin Museum of Comparative Zoology, Vol. 142, No. 1. H o N Zoo. ^00. o o • . * * • * * * 6oo. 8oo. 1000. 1500 BO C • fc 10 F ISH H R 20 30 Figure 48. Diurnal vertical distribution of A. lychnus determined by rate of capture with deptfi during the day (D) and night (N). A = Pacific (California); B = Pacific (Chile); C = Tropical E Pacific. marily restricted to the tropical Pacific; found in abundance in the eastern Pacific between 35°N and 35°S; distribution nar- rows across the equatorial Pacific as far as 160^W; a moderate catch from tlic lesser Sunda Islands indicates a possible trans- equatorial distribution in the Pacific. Vertical distribution (Fig. 48): Concen- trated between 300 m and 400 m off California by day, with the highest con- centration near 400 m; by night major concentrations occur from 200 m to 350 m, with no marked indication of geographical variation in depth. GcQfiraphic variation. Three samples from widely separated areas in the tropical east Pacific and its northern and southern boundaries gave no indication of any sig- nificant variation (Table 14; Fig. 49). Horizontal distribution data indicates an essentiallv continuous distribution in this 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 Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
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