Copertina di Primary production in freshwater
Titolo del libro:

Primary production in freshwater

Investigation of factors regulating primary production in the ancient Malili Lakes of Indonesia

LAP LAMBERT Academic Publishing (25.01.2010 )

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ISBN-13:

978-3-8383-4111-8

ISBN-10:
3838341112
EAN:
9783838341118
Lingua del libro:
Inglese
Risvolto di copertina:
Factors regulating composition and relative abundance in phytoplankton communities were investigated in an ancient lake with a highly endemic food web. Lake Matano has genera diversity (21) similar to tropical lakes, but low phytoplankton biomass (0.0162 µg/L). Vertical mixing physically limits primary production (42% Zeu:Zm); phytoplankton are moved below the euphotic zone. Macronutrient concentrations (0.30 µmol/L N, 0.13 µmol/L P) are low. Nutrient bioassays used N and P (30-320 µmol/L individually, 60:5-1920:160 µmol/L N:P combined). After 16 days, no significant (p > 0.05) changes in relative abundance and no biologically significant changes in phytoplankton biomass occurred. CHU-10 growth media cultivation, however, significantly increased chl-a. Analysis identified lakewater Cr (0.14 µmol/L) above a threshold to restrict algal growth (0.12 µmol/L) and Mo (0.0005 µmol/L) below requirements by most aquatic life (0.008 µmol/L). Therefore, physical (mixing) and chemical (toxicity, micronutrient) factors are concluded to limit composition and relative abundance of phytoplankton in Matano.
Casa editrice:
LAP LAMBERT Academic Publishing
Sito Web:
https://www.lap-publishing.com/
Da (autore):
Amy Snook
Numero di pagine:
128
Pubblicato il:
25.01.2010
Giacenza di magazzino:
Disponibile
categoria:
Ecologia
Prezzo:
59,00 €
Parole chiave:
primary production, phytoplankton, eutrophication, micronutrients, Toxicity, ancient lakes, freshwater, algae, molybdenum, Chromium

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