Concept

Rate measurements (including production, excretion and grazing)

	P23 MEDIN Parameter Discipline Keywords - (2) [+]
URI	http://vocab.nerc.ac.uk/collection/P03/current/O010/1/
Within Vocab	SeaDataNet Agreed Parameter Groups
Alternative Labels
Definition	This group contains parameter codes that relate to the rate of change of quantity of any chemical species or biological entity. Rates mey be the result of biological (e.g. production), chemical (e.g. photochemical degradation) or biogeochemical (e.g. particulate phase metal uptake rate) processes. The current (May 2003) BODC Parameter Dictionary includes the following types of rate: Primary production ( 14 C uptake rate) Photosynthesis kinetics (P:I experiments) New/regenerated ( 15 N) production Calcification Nitrification Nutrient uptake rates Bacterial production, including thymidine/leucine uptake Metal uptake rates Egg production rates Bacterial and phytoplankton grazing rates Food clearance rates Chemical photoproduction and degradation rates DOC production/uptake DMS/DMSP/DMSO dynamics Excretion and faecal pellet production rates Oxygen/DIC production/respiration Hydrolysis rates Growth efficiency/rates Sulphate reduction rates Some experimental condition parameters, such as incubation temperatures and durations, are also included. Note that this APG has been given 'priority' status to enable modellers to easily ascertain the extent of rate variable availability. Rate parameters are included in this APG in preference to any other APG that might seem appropriate.
Date	2003-06-10T15:23:21
Identifier	SDN:P03::O010
Note	accepted
Is Version Of	O010
version	1
Broader	`P08:DS06`	Cross-discipline
	`P23:MD002`	Marine Biodiversity
	`P23:MD006`	Marine Chemistry
Narrower	`OD1:FLUO`	Fluorescence
	P02 SeaDataNet Parameter Discovery Vocabulary - (24) [+]
	`P02:TBGZ`	Bacterial consumption in the water column
	`P02:GREF`	Bacterial growth
	`P02:UPTH`	Bacterial production in the water column
	`P02:BEPP`	Benthic primary production
	`P02:TNRP`	Dissolved inorganic carbon production and respiration in the water column
	`P02:DOCU`	Dissolved organic carbon uptake and production in the water column
	`P02:EXCR`	Excretion rate parameters in the water column
	`P02:SHTA`	Hydrolytic activity in sediment
	`P02:CDRU`	Metal uptake rates in the water column
	`P02:MZCT`	Microzooplankton grazing
	`P02:NTUP`	New production in water bodies
	`P02:AMOX`	Nitrification and denitrification rates in water bodies
	`P02:CSDE`	Organic sulphur compound dynamics in the water column
	`P02:GOXP`	Oxygen production and respiration in the water column
	`P02:PHYG`	Phytoplankton growth
	`P02:PPRD`	Primary production in the water column
	`P02:IS4R`	Reduction rates in bed sediments
	`P02:AMUP`	Regenerated production in water bodies
	`P02:PHUP`	Uptake of other nutrients in the water column
	`P02:CMFL`	Variable fluorescence parameters
	`P02:FPRT`	Zooplankton defecation rates in the water column
	`P02:FCRT`	Zooplankton feeding
	`P02:GRZO`	Zooplankton growth rates
	`P02:MSEP`	Zooplankton reproduction rate parameters

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