The phytoplankton of the Cook Plant monthly minimal surveys during the preoperational years 1972, 1973, and 1974 / by John C. Ayers.

2) definite highs in one season or in a bi-season. The relatively uniform
abundances may be of high, medium, or low numbers and are rather subjectively
determined. Table 7 lists the species or groups rated as uniform in abundance
during the surveys of 1972, 1973, and 1974.
TABLE 7. Phytoplanktonic forms subjectively rated as being of uniform abundance in the minimal surveys of 1972 through 1974. H denotes high numbers;
M denotes medium numbers; L denotes low numbers.

1972

Cryptomonas spp. (M)
FragiZaria crotonensis (H)
GZoeocystis spp. (M)

Nitzschia spp. (L)
TabeZZaria fenestrata (H)

1973

Ankistrodesmus spp. (L)
Cryptomonas spp. (L)
CycZotelZa cryptica (L)
CyclotelZa kuetzingiana (L)
CycloteZZa michiganiana (L)
CyctoteZZa oceZlata (L)
Diatoma tenue v. elongatum (L)
Dinoflagellates (L)
GZoeocystis planctonica (L)
GZoeocystis spp. (M)
MeZosira itaZica (M)

Nitzschia spp. (M)
Oocystis spp. (L)
Scenedesmus bicelZuZaris (L)
Stephanodiscus alpinus (L)
Stephanodiscus binderanus (L)
Stephanodiscus hantzschii (L)
Synedra delicatissima v. angustissima (L)
Synedra fiZiformis (L)
Synedra ostenfeldii (L)

1974

Ankistrodesmus sp. #3 (L)
AsterioneZZa formosa (M)
Coccoid green algae (M)
Cryptomonas spp. (M)
CycZotella oceZtata (L)
Flagellates (H)
FragiZaria capucina (L)
FragiZaria crotonensis (H)
Glenodinium spp. (L)
Melosira granulata (M)

Nitzschia acicuZaris (L)
Nitzschia bacata (L)
Nitzschia confinis (L)
Nitzschia spp. (L)
Scenedesmus bice Zularis (L)
Scenedesmus quadricauda (L)
Stephznodiscus alpinus (M)
Stephanodiscus minutus (M)
Synedra deZicatissima v. angustissima (L)

35