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Chlorophyll and Primary Productivity of Some Green, Freshwater Sponges
Author(s) -
Gilbert John J.,
Allen Harold L.
Publication year - 1973
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.19730580505
Subject(s) - productivity , primary productivity , chlorophyll a , biomass (ecology) , photosynthesis , sponge , chlorophyll , botany , biology , dry weight , photosynthetic efficiency , chlorophyll b , ecology , nutrient , macroeconomics , economics
Relationships between ash‐free dry weight, viable chlorophyll a and pheopigments a were examined by linear regression analysis for non‐gemmulating and gemmulated Spongilla lacustris and for an unidentified, non‐gemmulating species. The primary productivity of S. lacustris was determined by both oxygen and 14 C techniques and expressed on a biomass, chlorophyll a , and area basis, and the photosynthetic efficiency was calculated. The proportion of algal photosynthate excreted by the sponge was investigated, and the transfer of algal photosynthate to the sponge was examined by autoradiography.