EMPIRICAL BIOTIC INDEX OF QUALITY OF WATER IN SOUTH-AFRICAN STREAMS AND RIVERS

[21] OLIFF W. D., 1963, HYDROBIOLOGIA, V21, P355, DOI 10.1007/BF01025949

[22] OLIFF W. D., 1960, HYDROBIOLOGIA, V14, P281, DOI 10.1007/BF00162106

[23] PATRICK R, 1950, SEWAGE IND WASTES, V25, P210

[24] PATRICK R, 1951, VERH INT VER LIMNOL, V11, P299

[25] PATTEN BC, 1962, J MAR RES, V20, P57

[26] MEASUREMENT OF DIVERSITY IN DIFFERENT TYPES OF BIOLOGICAL COLLECTIONS [J]. JOURNAL OF THEORETICAL BIOLOGY, 1966, 13 (DEC) : 131 - &

[27] SURBER EW, 1936, T AM FISH SOC, V66, P193

[28] SPECIES DIVERSITY OF BENTHIC MACROINVERTEBRATES IN A STREAM RECEIVING DOMESTIC AND OIL REFINERY EFFLUENTS [J]. AMERICAN MIDLAND NATURALIST, 1966, 76 (02) : 427 - &

[29] WILHM JL, 1967, J WATER POLLUT CON F, V39, P1673

[30] WILHM JL, 1970, STREAM ECOSYSTEM, P8

[21] OLIFF W. D., 1963, HYDROBIOLOGIA, V21, P355, DOI 10.1007/BF01025949

[22] OLIFF W. D., 1960, HYDROBIOLOGIA, V14, P281, DOI 10.1007/BF00162106

[23] PATRICK R, 1950, SEWAGE IND WASTES, V25, P210

[24] PATRICK R, 1951, VERH INT VER LIMNOL, V11, P299

[25] PATTEN BC, 1962, J MAR RES, V20, P57

[26] MEASUREMENT OF DIVERSITY IN DIFFERENT TYPES OF BIOLOGICAL COLLECTIONS [J]. JOURNAL OF THEORETICAL BIOLOGY, 1966, 13 (DEC) : 131 - &

[27] SURBER EW, 1936, T AM FISH SOC, V66, P193

[28] SPECIES DIVERSITY OF BENTHIC MACROINVERTEBRATES IN A STREAM RECEIVING DOMESTIC AND OIL REFINERY EFFLUENTS [J]. AMERICAN MIDLAND NATURALIST, 1966, 76 (02) : 427 - &

[29] WILHM JL, 1967, J WATER POLLUT CON F, V39, P1673

[30] WILHM JL, 1970, STREAM ECOSYSTEM, P8