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Rio Paraguay AquaRAP
ca. 240 km (150 miles)
from Bahia Negra to
Riacho de la Paz
81
82
83
84
85
86
RN UP
LP
APA
RLP
74%
66%
48%
46%
52%
80%
RN UP
LP
APA
RLP
77%
64%
40%
38%
30%
75%
Fishes Aquatic Inverts
Correlation = 0.94***
87
Rio Paraguay
Sub-Regional Analysis
• Strong Sub regional Distributions
• Zone 1: Rio Negro, U. and L. Rio Paraguay
• Zone 2: Rio Apa, Riacho de la Paz
• Management to Protect Zones
88
LG
FV
FF
BW
BA
CW MC
BP
88%
92%
87%
40%70%
67%
97%
78%75%
63%
61%
74%
Macrohabitat
Effects:
• Flood Cycle
• Main Channel
• Rio Apa -- Clear Water
89
Number of Habitats
Cu
mm
ula
tive
Fre
qu
ency
of
Sp
ecie
s
60
65
70
75
80
85
90
95
100
105
0 1 2 3 4 5 6 7 8 9
Rio Paraguay FishesC
um
ula
tive
Fre
qu
ency
of
Sp
ecie
s
Number of Habitats
90
Pantanal, Rio Paraguay ---- Conclusions
Distributions of Fishes, Invertebrates and
Plants are NOT Random!
• Sharp Turnover of species between Zones
• Macrohabitat Effect
• Flood Cycle
• Protection of 4-5 macrohabitats will save ca.
80-90 % of the Biodiversity
91
Proposed Hidrovia
2250 km
1444 mi
92
Economic ValuesFisheries
93
Potential Fisheries Production
Source: FAO 1998
Pantanal 100,000 metric tonsRio Paraguay 50,000 metric tons
Total 150,000 metric tons
Value at $2/lb $660,000,000
94
Fisheries -- Pantanal
Number Sport Fishermen Mato Grosso do Sul
1981 1995 1999
17,000 43,000 56,000 ----------------------- SOURCE : PCBAP – 2000
95
Fisheries -- Pantanal
Number Sport Fishermen Mato Grosso do Sul
56,000 $ 100 $ 5,600,000
56,000 $1000 $56,000,000 ----------------
96
Potential Sustainable Fisheries Value
Commercial Fisheries $660,000,000
Sports Fishery $ 25,000,000
Total Annual Value $685,000,000
97
Estimated Operational Expenses:
$25,000 per day $9,125,000 per year
source: Army Corps Engineers 98
Orinoco River, Venezuela:
Requires 2 dredges per day for 365 days
Channel: 4 m, ca. 328 km (200 miles) 99
Proposed Hidrovia
2250 km
1444 mi
100
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