Cook Plant preoperational studies, 1969 / John C. Ayers ... [et al.].

course to CP-5 on the offshore leg that the aircraft was expected to fly.
At these stations water temperatures, transparencies, and colors did not
differ from those at CP-1 and CP-2 therefore additional phytoplankton
samples were not taken.
Though the aircraft did not collect usable data along the offshore leg
as planned, we are able to report, from the data collected on the traverse alongshore, that in the close-inshore area the surface temperature was 25.0~C. The
data collected aboard ship shows the water color was a milky light green, and
the water transparency,by Secchi disc transparency measurements was, 1 meter
at Stations CP-1, CP-4, and CP-6. At Stations CP-2 and CP-5 the water color
was light brownish green, the temperature was 24.0~C, and the transparency was
2.25 meters. At Station CP-3 the surface temperature was 23.5~C; the water
color was a light greyish green; and the Secchi disc transparency was 4 meters.
Counts and identifications of the phytoplankton collected at Stations CP-1,
CP-2, and CP-3 are given in Tables 22 through 26 below.
While it is impossible to be sure from so limited a survey, it appears
that the water at CP-2 may have been a detached mass of St. Joseph River water;
at least it had the water color and phytoplankton population characteristic of
river water.

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