236
M. Lang and D.W. Eckhoff
this is indeed the case. However, it appears that there are two distinctly different
populations in the spring and autumn with summer and winter being transitional periods.
Photosynthetic production is linked to solar radiation absorption and hence growth.
Gross productivity should consequently be proportional to the product of specific growth
rate times biomass. Utilizing equations (2) and (3) the relationship is:
or
where: P, G
k 2
10x e a(T-20)
k 2 (^)e«
( # ) * ■
k 2
ρ α(Τ-20)
(6)
gross photosynthetic productivity
(mg/ß per day of 0 2 )
a coefficient
A plot according to equation (6) is shown in Fig.2 and the data are presented in Table
II. Here again, the overwhelming influence of temperature can be seen, and the
0.10
b* 0.05
0.02 h
0.01 h10
15
20
Temperature, °C
Fig.2. Effects of Temperature on Phytoplankton Productivity in Jamaica Bay
M. Lang and D.W. Eckhoff
this is indeed the case. However, it appears that there are two distinctly different
populations in the spring and autumn with summer and winter being transitional periods.
Photosynthetic production is linked to solar radiation absorption and hence growth.
Gross productivity should consequently be proportional to the product of specific growth
rate times biomass. Utilizing equations (2) and (3) the relationship is:
or
where: P, G
k 2
10x e a(T-20)
k 2 (^)e«
( # ) * ■
k 2
ρ α(Τ-20)
(6)
gross photosynthetic productivity
(mg/ß per day of 0 2 )
a coefficient
A plot according to equation (6) is shown in Fig.2 and the data are presented in Table
II. Here again, the overwhelming influence of temperature can be seen, and the
0.10
b* 0.05
0.02 h
0.01 h10
15
20
Temperature, °C
Fig.2. Effects of Temperature on Phytoplankton Productivity in Jamaica Bay