[In Process Citation]
We have found a relationship between the net absorption of carbon at time t divided by the net absorption of carbon in 24 h (AN(t)/AN(24)) and the incubation duration after sunrise, in surface waters of the western Mediterranean sea. This ratio is quite similar whatever the sample location, the sample depth and the 24-h net-absorption level. Considering this result, we have established a correction factor which may be used to convert primary production rates obtained from incubation durations < or = 24 h to daily rates (24 h dawn-to-dawn).
Moutin
T
Laboratoire d'oceanographie et de biogeochimie, Centre d'oceanologie de Marseille, France. moutin@com.univ-mrs.fr
Raimbault
P
Poggiale
JC