Premium
Optical Limnology of a Hypertrophic Gravel‐Pit Lake
Author(s) -
Cobelas Miguel Alvarez
Publication year - 1991
Publication title -
internationale revue der gesamten hydrobiologie und hydrographie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.524
H-Index - 52
eISSN - 1522-2632
pISSN - 0020-9309
DOI - 10.1002/iroh.19910760206
Subject(s) - limnology , underwater , water column , attenuation , light field , environmental science , oceanography , phytoplankton , chlorophyll a , geology , field (mathematics) , ecology , chemistry , biology , physics , optics , biochemistry , nutrient , mathematics , pure mathematics
The underwater light field has been studied in a hypertrophic, gravel‐pit lake close to Madrid (Spain) during a one year cycle. Both the inherent and the apparent properties of the underwater light field have been weekly surveyed. As theoretically expected, there is a link between inherent and apparent properties in this lake. Evidence is given suggesting that a seasonal trend in the underwater light field seems to occur. The main factor attenuating light in the vertical column is phytoplankton chlorophyll “ a ” but humic substances also appear to play an importtant role in light attenuation.