Table 4. List of locations along the Paran�-Paraguay Waterway relevant to this study.1 Location 2 Km Downstream of Upper Paraguay River    Buenos Aires, Argentina, port of 0    Diamante, Argentina, port of 533    Santa F�, Argentina, port of 592    Corrientes, Argentina, port of 1208    Confluencia (confluence of Paran� and Paraguay rivers) 1240    Bermejo river, on the Lower Paraguay river, mouth of 1321    Tebicuary river (the boundary between Lower and Middle Paraguay rivers), mouth of 1381    Pilcomayo river, on the Middle Paraguay river (the boundary between Argentina and Paraguay), mouth of 1619    Asunci�n, Paraguay, port of 1630 Along Upper Paraguay River    Apa river, the boundary between Paraguay and Brazil, mouth of 2172    Porto Murtinho 2235    Tarum�, Passo 2251-52    Fecho dos Morros 2271-73    Barranco Branco 2322    Nabileque river, inferior mouth 2344    Rebojo Grande, Passo 2538-40    Coimbra, Passo 2553-54    Forte Coimbra 2561    Piuvas Inferior, Passo 2573-74    Piuvas Superior, Passo 2577-78    Conselho, Passo do, beginning 2607    Nabileque river, superior mouth 2607    Conselho, Passo do, end 2609    Porto Esperan�a 2628    Eurico Dutra Bridge 2630    Figueirinha, Passo 2633-35    Miranda river, mouth of 2662    Porto da Manga 2686    Miguel Henrique, Passo 2712-15    Formigueiro, Passo, beginning 2722    Old Taquari river, mouth of 2723    Formigueiro, Passo, end 2724    Rabicho, port of 2740    Ladario 2755    Corumb�, port of 2762    Canal Tamengo, mouth of 2762    Faia, Passo 2803-04    S�o Francisco, Passo 2906-07    S�o Francisco 2908    Rufino, Passo 2937-38    Piuva Inferior, Passo 2952-53    Piuva Superior, Passo 2954-56    Amolar Pass, beginning 2961    Mandior� Lake, mouth of 2963    Amolar, Passo, end 2963    Amolar 2966    Cuiab� river, mouth of 2988    Ref�gio das Tr�s Bocas 2994    Ponta do Morro (exit of Ga�ba Lake) 3030    Ga�ba Lake, entrance to 3034    Bela Vista do Norte 3047    Porto Concei��o 3182    Japuira, Passo 3267-68    Descalvados, Passo 3301-02    Descalvados 3303    Paratudal, Passo 3310    Presidente, Passo 3320    Morro Pelado, Passo 3322-24    Baia das Eguas, Passo 3332-33    Corich�o, Passo 3335-36    Baiazinha, Passo 3340-43    Beicudo, Passo 3345-46    Barranco Vermelho, Passo 3349    Soldado, Passo do 3350-52    Tucum, Passo 3356-57    Bote, Passo 3359-60    Cambara, Passo 3360-62    Jauru Pass, beginning 3363    Old Jauru River, mouth of 3365    Jauru, Passo, end 3366    Acuri, Passo 3366-68    Sim�o Nunes Inferior, Passo 3372-73    Sim�o Nunes Superior, Passo 3375-77    Passagem Velha, Passo 3403-06    Retiro Velho, Passo 3411-12    C�ceres 3441    C�ceres, port of 3442 1Source: INTERNAVE (1990). 2   Bolded entries correspond to gaging stations listed in Table 2.