TY - JOUR
T1 - Field experiments for in situ measurement of photosynthetic efficiency and quantum yield
AU - Dubinsky, Z.
AU - Berman, T.
AU - Schanz, F.
PY - 1984
Y1 - 1984
N2 - A method for the in situ determination of kc¯, the average in vitro spectral specific attenuation coefficient of chlorophyll is described. This method takes into account changes in the spectral distribution of underwater light throughout the water column using a commonly available cosine collector. The kc¯ values, together with irradiance and primary productivity data gathered during the first GAP workshop at Lake Constance are used to calculate photosynthetic efficiencies Ez and quantum yields φ at different depths. The depth related changes found in φ and kc¯ are discussed, as is the question of constancy of φmax at low irradiance levels.
AB - A method for the in situ determination of kc¯, the average in vitro spectral specific attenuation coefficient of chlorophyll is described. This method takes into account changes in the spectral distribution of underwater light throughout the water column using a commonly available cosine collector. The kc¯ values, together with irradiance and primary productivity data gathered during the first GAP workshop at Lake Constance are used to calculate photosynthetic efficiencies Ez and quantum yields φ at different depths. The depth related changes found in φ and kc¯ are discussed, as is the question of constancy of φmax at low irradiance levels.
UR - http://www.scopus.com/inward/record.url?scp=0000449733&partnerID=8YFLogxK
U2 - 10.1093/plankt/6.2.339
DO - 10.1093/plankt/6.2.339
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AN - SCOPUS:0000449733
SN - 0142-7873
VL - 6
SP - 339
EP - 349
JO - Journal of Plankton Research
JF - Journal of Plankton Research
IS - 2
ER -