Research Article

Study on Freshwater Macroinvertebrates of Some Tanzanian Rivers as a Basis for Developing Biomonitoring Index for Assessing Pollution in Tropical African Regions

Figure 1

Map showing sampling sites along Karanga, Rau, Lumbanga, Sere, and Umbwe rivers. Key: K1 = Karanga site @Kibo Match Industry Ltd.; K2 = Karanga site @Shirimatunda; K3 = Karanga site @Bonite Bottlers Factory Ltd.; R1 = Rau site @Mawela; R2 = Rau site @Majengo; R3 = Rau site @Msaranga; L1 = Lumbanga site @Mweka; L2 = Lumbanga site @Singachini; L3 = Lumbanga site @Kirima; S1 = Sere site @Kombo; S2 = Sere site @Narumu; S3 = Sere site @Weruweru; U1 = Umbwe upstream site; U2 = Umbwe site @Kwa-Rafael; U3 = Umbwe site @Kindi.