Table 11.4. Level of various types of anthropogenic stress in different reef regions as evaluated within a 4-grade scale
Types of stress
S.E.
Micronesia
Polynesia
GBR,
Hawaii
E. Pacific
Red
W. Atlantic
Asia
and
Australia
Sea
Melanesia
Destructive fisheries, employing
3
2
1
0
1
0
explosives, heavy trawls,
toxic substances
Overfishing of fish and other
3
4
4
1
4
2
1
4
reef fauna, endangering their
populations
Excavation
of sand and lime for
4
3
0
0
0
2
3
construction
Tourism
4
2
2
4
3
2
2
4
Collection of corals and shells
4
4
2
3
1
3
2
3
Discharge
of industrial waste
2
1
2
1
2
2
1
2
waters
Discharge
of man-made
3
2
3
1
2
3
3
wastewaters
Discharge
of fertilizers and
3
2
2
3
2
3
0
2
pesticides from fields
Pollution connected with
4
2
3
2
2
4
1
2
construction and intensive
agriculture
Sum
of grades for all kinds of
30
20
22
16
15
20
10
23
stress
Sum
of
grades in
all regions
9
23
13
22
22
13
20
17
20
)::I
;.
...
0
"0
0
O ~
::I
n'
- 3
"0
~
~
en
"' "
- VJ