Table 4.7. Total number (N) of periphytonic bacteria, their biomass (B) and production (Pb)' and metabolic rates of periphytonic turfs ever
the dead branches of ramose coral colonies, collected at reefs of the Majuro atoll, Marshalls. Data are given per 1 g of scraped material. (After
Sorokin 1978b)
Site
Biotope
Metabolic rates
Pp/M
Density and production of bacteria
~gCg-lday-l
N,
B,
Pb
Pb/B Photosynthesis
Respiration
109 g-l
~gCg-l
~gCg-lday-l
(Pp)
(M)
Ajurotake I.,
Bare flat
3.10
180
120
0.7
124
330
0.4
coastal reef
Flat with rare dead corals
2.80
170
110
0.6
302
311
1.0
Flat covered with dead and living corals 1.92
120
35
0.3
87
101
0.9
Arurakku I.,
Dead coastal reef
7.20
360
100
0.3
280
281
1.0
lagoonal reef
Flat covered with living corals
6.20
500
215
0.4
258
600
0.4
Reef edge, thickets of living corals
2.3
140
43
0.3
139
109
1.3
Eroj 1.,
lagoonal Reef edge, thickets of living corals
4.3
260
106
0.4
93
300
0.3
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