{"tributary":"Ica","species.upstream":14,"species.downstream":19}
{"tributary":"Jutai","species.upstream":11,"species.downstream":18}
{"tributary":"Japura","species.upstream":8,"species.downstream":8}
{"tributary":"Coari","species.upstream":5,"species.downstream":7}
{"tributary":"Purus","species.upstream":10,"species.downstream":16}
{"tributary":"Manacapuru","species.upstream":5,"species.downstream":6}
{"tributary":"Negro","species.upstream":23,"species.downstream":24}
{"tributary":"Madeira","species.upstream":29,"species.downstream":30}
{"tributary":"Trombetas","species.upstream":19,"species.downstream":16}
{"tributary":"Tapajos","species.upstream":16,"species.downstream":20}
{"tributary":"Xingu","species.upstream":25,"species.downstream":21}
{"tributary":"Tocantins","species.upstream":10,"species.downstream":12}