. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. A ZOOGEOGRAPHIC ANALYSIS OF THE MYCTOPHIDAE 37. Croup 1 Group 2 I 10 20 NUMBER OF SPECIES Fig. 14. Graph of cumulative percentage densities for Group 1 and Group 2. Widespread Patterns, and 1 species (Hygophum benoiti) is said to have a North Temperate Pattern (Hulley 1981). Cumulative percentage density plots (Fig. 14) reveal that 11 species (with 2A/» > 6,63) comprise about 90 per cent of the total, more than double the number in Group 1. Shannon diversity indices (H) for the stations range betw
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. A ZOOGEOGRAPHIC ANALYSIS OF THE MYCTOPHIDAE 37. Croup 1 Group 2 I 10 20 NUMBER OF SPECIES Fig. 14. Graph of cumulative percentage densities for Group 1 and Group 2. Widespread Patterns, and 1 species (Hygophum benoiti) is said to have a North Temperate Pattern (Hulley 1981). Cumulative percentage density plots (Fig. 14) reveal that 11 species (with 2A/» > 6,63) comprise about 90 per cent of the total, more than double the number in Group 1. Shannon diversity indices (H) for the stations range between 0,91 and 1,21 (Table 7). It should be noted that Hygophum benoiti, which has been included in the Temperate- subtropical Subpattern of the Cool Water Group (Hulley 1981), is a Group 2 indicator. Only one species (Lampanyctus cuprarius, an Atlantic endemic) is character- istic of Group 3, when compared with Groups 1 and 2 (Table 6). It would appear therefore that the community structure of Group 3 is not different from that of Group 2 and that the distinction of these two groups is based rather on species abundances. This feature has already been noted (Backus et al. 1969) and is probably linked to differences in food supply, as indicated by the primary. 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 South African Museum. Cape Town : The Museum
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
