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

TABLE 9. Comparisons of occurrences of phytoplanktonic forms at the inshore stations (NDC-.5-1, SDC-5-1,
DC-0, and DC-1) near the Cook Plant with occurrences at the north reference station (NDC-7-1) and the south
reference station (SDC-7-1) seven miles north and south of the plant. (A) denotes "abundant" and is explained in the text; ** means "did not occur"; all others are "rare." Data of the monthly minimal surveys
of 1974.
Cook inshore stations North reference station South reference station

Achnanthes clevei
A. clevei v. rostrata
A. Zanceolata v. dubia
A. Zinearis
A. minutissima
Achnanthes spp.
**
**
AmphipZeura pellucida
Amphora negtecta

0

Achnanthes clevei
**
A. ZanceoZata v. dubia
**
**
**
Actinastrum hantzschii v.
fluviati le
**
Amphip leura pe lucida
**
**
Amphora ovalis
**
**
**
A. ovaZis v. pediculus
**
**
Amphora spp.
Anabaena flos-aquae (chains/
masses) (A)

Achnanthes spp.
**
Agmene lum quadruplicatum
Amphip leura pel lucida
**
Amphora ornata
**
**
A. ovalis v. gracilis
**

**
**
**
**
**

**A
A.
A.
A.
A.

ovaZis
ovalis v. constricta
ovalis v. gracilis
ovalis v. libyea

A. ovalis v. pediculus
A. rotunda
A. sibirica
Amphora spp.
Anabaena flos-aquae (chains/
masses) (A)

A. ovaZis v. pediculus
A. rotunda
A. sibirica
Amphora spp.
Anabaena flos-aquae (chains/masses)