. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 190 R. J. DAY Table II Total number of prey items identified in specimens oj B. antilliensis (1M = 80) anil B. globulifera (N = 80) during the day 10700 lo 1800 h) and at night (2100 to 0600 h) Prey Item B antillicnxis Dav Night B globulifera Dav Night Crustacea Ostracoda 0 3 0 3 Copepoda 0 24 7 16 Decapoda 0 13 7 10 Brachyura 0 T -) 1 5 Isopoda 0 "1 2 3 Amphipoda 2 13 6 10 Non-Crustacea Polychaeta 0 1 1 2 Other 0 8 0 10 of symbionts from other tropical sea anemones (Steen and Muscatine, 1984; Smith, 1986; Cook et
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 190 R. J. DAY Table II Total number of prey items identified in specimens oj B. antilliensis (1M = 80) anil B. globulifera (N = 80) during the day 10700 lo 1800 h) and at night (2100 to 0600 h) Prey Item B antillicnxis Dav Night B globulifera Dav Night Crustacea Ostracoda 0 3 0 3 Copepoda 0 24 7 16 Decapoda 0 13 7 10 Brachyura 0 T -) 1 5 Isopoda 0 "1 2 3 Amphipoda 2 13 6 10 Non-Crustacea Polychaeta 0 1 1 2 Other 0 8 0 10 of symbionts from other tropical sea anemones (Steen and Muscatine, 1984; Smith, 1986; Cook et 1988). The peak mitotic indices of symbionts from B. antilliensis (8%) and B. globulifera (5%) were similar to those from fed Aiptasia pallida (1 to 8%) (Cook et al., 1988), but much higher than those from Zoant/ius social us, Palythoa variabilis (both ; Steen and Muscatine, 1984), and ( ; Muller-Parker, 1984, 1985, 1987; Wilkerson et al., 1983; Steen, 1986). Consequently the population doubling times of symbionts from B. antil- liensis, B globulifera, and A. pallida (Cook el al., 1988) were much shorter, 8 to 12 days, than those from Z. so- ciatus, P. variabilis, and A. pulchella, 28 to 137 days (Steen and Muscatine, 1984; Muller-Parker, 1984, 1985, 1987; Wilkerson et al., 1983). The density of algal symbionts in both B antilliensis and B. globulifera was less than half that reported for uration irradiances (I09s). The total daily net carbon fixed (Pz) by the algal symbionts of B. antilliensis was greater than for B. globulifera. However, the calculated amount of fixed carbon available for translocation to the host (T) did not vary between the two species, reflecting the similar- sized algal populations and peak mitotic indices (Table I). The overall potential contribution made by translocated symbiont carbon to the daily respiratory carbon require- ments of the host animal (CZAR) was slightly greater in B. antilliensis (109%) than in B. globulifera (92
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
