๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Photosynthesis-irradiance relationships in polar and temperate phytoplankton populations

โœ Scribed by W. G. Harrison; T. Platt


Book ID
104775270
Publisher
Springer
Year
1986
Tongue
English
Weight
992 KB
Volume
5
Category
Article
ISSN
0722-4060

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โœฆ Synopsis


Analyses of some 700 photosynthesis-irradiance (P-I) experiments made on natural marine phytoplankton assemblages in over six years of field work are summarized. Observed variations in P-I parameters are discussed in relation to geographical location, sample depth and temporal cycles (diel to interannual). Results suggest that P-I characteristics and therefore regional primary production are largely under physical control; temperature and light appear to be the most important environmental covariables.


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Photosynthetic parameters for netplankton (>22 #m) and nanoplankton (<22 t~m) varied over similar ranges but exhibited different seasonal and geographic patterns of variation. Nanoplankton a was relatively constant (0.06 mg C [mg Chl 9 h] -a [/JE m -2 s-a]-1), but PB m (mg C [mg Chl 9 d] -a) was an