Seawater carbonate chemistry and calcification during a tropical lagoon study at SW lagoon, New Caledonia, 1991

A selective chemical photosynthesis inhibitor, DCMU (Dichorophenyl-dimethylurea), dissolved in DMSO (Dimethyl sulfoxide) was substituted for the dark incubation method commonly used to measure the oxygen consumption in metabolic and primary production studies. We compared oxygen fluxes during light...

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Bibliographic Details
Main Authors: Garrigue, Claire, Boucher, Guy, Clavier, Jacques
Format: Dataset
Language:English
Published: PANGAEA 1994
Subjects:
Alkalinity
total
Alkalinity anomaly technique (Smith and Key
1975)
Aragonite saturation state
Benthos
Bicarbonate ion
Calcification/Dissolution
Calcification rate of calcium carbonate
Calcite saturation state
Calculated
Calculated using seacarb after Nisumaa et al. (2010)
Carbon
inorganic
dissolved
Carbonate ion
Carbonate system computation flag
Carbon dioxide
Coast and continental shelf
Containers and aquaria (20-1000 L or < 1 m**2)
Date
DEPTH
water
Entire community
EPOCA
EUR-OCEANS
European network of excellence for Ocean Ecosystems Analysis
European Project on Ocean Acidification
EXP
Experiment
Field experiment
Fugacity of carbon dioxide (water) at sea surface temperature (wet air)
GB_92/94
OA-ICC
Ocean Acidification International Coordination Centre
Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)
pH
pH logger (AIMS
1991)
Salinity
Site
Soft-bottom community
South Pacific
SW lagoon New Caledonia
Temperature
Titration potentiometric (Tacussel Titrator
TT-processor 2600S)
Tropical
Pacific
Ocean acidification
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.717620
https://doi.org/10.1594/PANGAEA.717620
Description
Summary:A selective chemical photosynthesis inhibitor, DCMU (Dichorophenyl-dimethylurea), dissolved in DMSO (Dimethyl sulfoxide) was substituted for the dark incubation method commonly used to measure the oxygen consumption in metabolic and primary production studies. We compared oxygen fluxes during light incubations with DCMU and dark incubations procedure, on soft bottom benthos. For this purpose, we studied the effects of different DCMU concentrations. A concentration of 5 · 10-5 mol l-1 inside a clear incubation enclosure completely inhibits photosynthesis without affecting the metabolism of soft bottom benthos.

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