. The Australian zoologist. Zoology; Zoology; Zoology. UNIDENTIFIED ANIMAL MATERIAL HYDROZOA. ADULTS (N = g7) JUVENILES (Nz 20) SMALL JUVENILES (N :84 ) FIG. 3. Composition of the diet by major food groups for different size classes of G. elevata. Diet of Adults The stomach contents of 89 adult rock blackfish were analysed and of these 87 were found to contain food. Analysis of their diet by the estimated volumetric method, along with seasonal differences in the diet, is shown in Table 1. Figure 3 shows the relative proportions of the major food groups in the diet of adult G. elevata. Adult ro
. The Australian zoologist. Zoology; Zoology; Zoology. UNIDENTIFIED ANIMAL MATERIAL HYDROZOA. ADULTS (N = g7) JUVENILES (Nz 20) SMALL JUVENILES (N :84 ) FIG. 3. Composition of the diet by major food groups for different size classes of G. elevata. Diet of Adults The stomach contents of 89 adult rock blackfish were analysed and of these 87 were found to contain food. Analysis of their diet by the estimated volumetric method, along with seasonal differences in the diet, is shown in Table 1. Figure 3 shows the relative proportions of the major food groups in the diet of adult G. elevata. Adult rock blackfish were found to be omnivorous, consuming principally encrusting algae () but also encrusting fauna including tunicates (), hydroids (), bryozoans () and sponges (). The diets of adult males and females were found to be almost identical and therefore data for the sexes were combined for all analyses. TABLE 2. Frequency of occurrence of numbers of food types per stomach in adult, juvenile and small juvenile G. elevata. No. == number of fish, % = percentage of fish. Adults Adi ilts* Juveniles Small juveniles n = 87 n - : 19 n = = 20 n = _ 84 Number of food types No. % No. % No. % No. % per stomach 1 2 — 2 20 2 6 — 4 28 3 17 3 7 25 4 12 3 4 7 5 11 4 2 4 6 14 2 1 — — 7 12 5 — •— — — 8 8 2 — — — — 9 4 — .—. — — — — 10 1 — — — — — — Total 87 100 19 100 20 100 84 100 Sampled in summer (for comparison with juveniles and small juveniles). 396 Aust. Zool. 20(3). 1980. 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 Royal Zoological Society of New South Wales; Royal Zoological Society of New South Wales. Proceeding
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectzoology, bookyear1914
