LITERATURE CITED
- Brusven , M. A. and Rose , S. T. 1981 . Influence of substrate composition and suspended sediment on insect predation by torrent sculpin, Cottus rhotheus . Canadian Journal of Fisheries and Aquatic Sciences , 38 : 1444 – 1448 .
- Casey , R. J. and Clifford , H. F. 1989 . Colonization of natural substrata of different roughness and colour by Ephemeroptera nymphs using retrieval and direct observation techniques. . Hydrobiologia , 173 : 185 – 192 .
- Clifford , H. F. , Gotceitas , V. and Casey , R. J. 1989 . Roughness and color of artificial substratum particles as possible factors in colonizations of stream invertebrates. . Hydrobiologia , 175 : 89 – 95 .
- Healy , M. 1984 . “ Fish predation on aquatic insects ” . In The ecology of aquatic insects Edited by: Resh , V. H. and Rosenberg , D. M. 255 – 288 . New York : Praeger Scientific . In 625
- Hutchinson , G. E. 1981 . Thoughts on aquatic insects. . BioScience , 31 : 495 – 500 .
- Hynes , H. B.N. 1970 . The ecology of running waters 555 Toronto : University of Toronto Press .
- Otto , C. 1984 . Adaptive head coloration in case-making caddis larvae. . Freshwater Biology , 14 : 317 – 321 .
- Sladecova , A. 1962 . Limnological investigation methods for the periphyton (“aufwuchs”) community. . Biological Review , 28 : 286 – 350 .
- Wetzel , R. G. and Likens , G. E. 1979 . Limnological analyses. W.B. Saunders Company. Philadelphia. 357
- Zar , J. H. 1984 . Biostatistical analysis, , 2nd edition 718 Englewood Cliffs, N.J : Prentice-Hall, Inc. .