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An incubator designed for extensive and sensitive measurements of phytoplankton photosynthetic parameters
Author(s) -
Marcel Babin,
Morel Andé,
Gag Real
Publication year - 1994
Publication title -
limnology and oceanography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.7
H-Index - 197
eISSN - 1939-5590
pISSN - 0024-3590
DOI - 10.4319/lo.1994.39.3.0694
Subject(s) - irradiance , photosynthesis , seawater , phytoplankton , incubator , eutrophication , environmental science , carbon fixation , chlorophyll a , oceanography , atmospheric sciences , environmental chemistry , botany , chemistry , biology , nutrient , ecology , physics , geology , quantum mechanics , microbiology and biotechnology
An improved incubator for the determination of the photosynthesis rate‐irradiance curve is described. It allows measurements of carbon fixation in waters with low chlorophyll a concentration by using rather large seawater volume. The irradiance gradient inside the incubation chambers is reproducible and can be accurately determined. With the capability of simultaneous measurements on 10 water samples, extensive determination of vertical profiles of photosynthetic parameters is achievable. Examples of photosynthetic parameters are given for waters collected in eutrophic, mesotrophic, and oligotrophic sites of the tropical Atlantic Ocean.