Two sections of the stream, each about one-half mile long (See p. 366),
were studied. Additional description of particular areas is presented
below. Area 1 and the pools in which rotenone was used are on the Bosch
Farm approximately two miles upstream from the White Farm where Areas 2,
3, 4, 5, 6 and 7 are situated.
Area 1 has a length of 210 feet, an average width of four feet, and a
maximum depth of two feet. The upper half is a swift, rubble riffle four
inches in average depth; the lower half is one and one-half feet in
average depth and has a slow current (Pl. 29, Fig. 1).
Area 3 has a length of 186 feet, an average width of 34 feet, and a
maximum depth of two and one-half feet. This area includes a shallow
riffle at both upstream and downstream ends of a pool 73 feet long and
approximately one foot in average depth (Pl. 29, Fig. 2).
Area 5 has a length of 250 feet, an average width of 50 feet, and a
maximum depth of two and one-half feet. This is a shallow, quiet pool
over rubble and bedrock bottom except for a small area of mud bottom
(backwater) above the point where a short riffle drains into this pool
from Area 6 (Pl. 30, Fig. 1).
Area 6 has a length of 200 feet, an average width of 50 feet, and a
maximum depth of one and one-half feet. This is a shallow, quiet pool
over bedrock bottom, except for a small area of mud bottom at one side
of the upper end of the pool. A short, steep, rubble-riffle is included
in this area at the upstream end (Pl. 30, Fig. 2).
Areas 2, 4, and 7 resemble at least one of the areas described above but
were sampled less intensively. Data from areas 2, 4, and 7 are included
in discussion of the total fauna of the upper Neosho river but are
excluded from the discussion of representative parts of that fauna.