Dataset: meso_grazing
Deployment: TT011

Mesozooplankton grazing rates

Principal Investigator:

Hans G. Dam (University of Connecticut, UConn)

BCO-DMO Data Manager:

Cynthia L. Chandler (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

U.S. JGOFS Equatorial Pacific (EqPac)

Version:

April 8, 2003

Deployment Synonyms:

EqPac Fall Survey

Version Date:

2003-04-08

Data URL:

https://www.bco-dmo.org/dataset-deployment/450902/data

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Description

Mesozooplankton grazing rates

Methods & Sampling

Dataset acquisition description

See Platform deployments for cruise specific documentation

Deployment-specific acquisition description

   PI:              Hans Dam
   of:              University of Connecticut
   dataset:         Mesozooplankton grazing rates
   dates:           August 10, 1992 to September 13, 1992
   location:        N: 12.02  S: -11.9417  W: -140.5367  E: -134.9517
   project/cruise:  EQPAC/TT011 - Fall Survey
   ship:            Thomas Thompson
 
   Grazing was measured with the gut fluorescence technique. Details
   are given in the EqPac Protocols. Mean GCRC (gut clearance rate constant)
   of this cruise (0.032 min_to_1) was used.
 
   The grazing rates are the mean values of 2-5 pseudoreplicates from each
   tow.  If you want all of the pseudoreplicate values, contact Hans Dam.

Data Processing Description

Dataset Processing Description

More information about this dataset deployment

Instruments

MOCNESS

Supplied Description:

Instrument Type

Generic Name: MOCNESS

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/NETT0097/

Generic Description:

The Multiple Opening/Closing Net and Environmental Sensing System or MOCNESS is a family of net systems based on the Tucker Trawl principle. There are currently 8 different sizes of MOCNESS in existence which are designed for capture of different size ranges of zooplankton and micro-nekton Each system is designated according to the size of the net mouth opening and in two cases, the number of nets it carries. The original MOCNESS (Wiebe et al, 1976) was a redesigned and improved version of a system described by Frost and McCrone (1974).(from MOCNESS manual) This designation is used when the specific type of MOCNESS (number and size of nets) was not specified by the contributing investigator.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
lat_n	nominal latitude, minus values south	whole degrees	no_bcodmo_term
event	event number from event log, a composite of month/day/time local Hawaii time		event
sta	station number from event log		no_bcodmo_term
tow	plankton tow number from event log		tow
depth_r	depth range/interval sampled	meters	no_bcodmo_term
sizefrac	size fraction/interval of organisms analyzed	millimeters	no_bcodmo_term
graze_rate	grazing rate	milligrams pigment/milligrams body C/hour	no_bcodmo_term
depth_range	depth range/interval sampled	meters	no_bcodmo_term

Database

Contribute Data

Dataset: meso_grazing
Deployment: TT011

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: meso_grazingDeployment: TT011

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Dataset: meso_grazing
Deployment: TT011