Table 6.6.
Parameters of species diversity, total number of species and biomass in fish communities inhabiting three different biotopes. Data
~
were obtained by analyses of explosion samples containing over 28000 fish specimens (after Williams and Hatcher 1983 and Williams 1983)
~
Biotope
Coastal reef
Patch reef in the lagoon
Outer reef slope
Species diversity
Total number
of species
110
201
163
Shannon's
index of
diversity (H')
1.56
2.38
2.98
Trophic structure (% of total
biomass of fish)
Planktonovorous
Herbivorous
fish
fish
9
46
11
71
29
43
Parameters of average weight
(W), number (N) and biomass (B)
W,
N,
B,
gsp. -1
sp. m- 2
gm- 2
12.7
7.2
92
27.8
5.6
156
48.4
4.9
237
Q
~
~
o
...,
:!1
en
:r