Dataset: dinoflagellates
Deployment: TT007

Abundance, biovolume and biomass of heterotrophic dinoflagellates

Principal Investigator:

Peter Verity (Skidaway Institute of Oceanography, SkIO)

BCO-DMO Data Manager:

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

Project:

U.S. JGOFS Equatorial Pacific (EqPac)

Version:

May 1, 1997

Deployment Synonyms:

EqPac Spring Survey

Version Date:

1997-05-01

Data URL:

https://www.bco-dmo.org/dataset-deployment/450851/data

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Description

Abundance, biovolume and biomass of heterotrophic dinoflagellates

Methods & Sampling

Dataset acquisition description

See Platform deployments for cruise specific documentation

Deployment-specific acquisition description

   PI:              Peter Verity
   of:              Skidaway Institute of Oceanography
   dataset:         Abundance/Biovolume/Biomass of heterotrophic dinoflagellates
   dates:           February 05, 1992 to March 08, 1992
   location:        N: 12.0039  S: -12.0306  W: -140.4726  E: -134.9948
   project/cruise:  EQPAC/TT007 - Spring Survey
   ship:            Thomas Thompson
 
   Methodology: Verity, P.G., D.K. Stoecker, M.E. Sieracki and J.R. Nelson 1996.
   Microzooplankton grazing of primary production at 140W in the equatorial
   Pacific.  Deep-Sea Research II, vol 43, No. 4-6, pp 1227-1256.


   Abundance and biovolume were measured using a fluorescence microscope
   image analysis system.  Carbon was calculated from biovolume using a 
   constant density factor of 0.24 pgC/cubic micron cell volume.

   Abundance values are for organisms less than 20 microns.

Data Processing Description

Dataset Processing Description

More information about this dataset deployment

Instruments

Fluorescence Microscope Image Analysis System

Supplied Description:

fluorescence microscope image analysis system used to measure Abundance and biovolume

Instrument Type

Generic Name: Fluorescence Microscope Image Analysis System

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/LAB06/

Generic Description:

A Fluorescence (or Epifluorescence) Microscope Image Analysis System uses semi-automated color image analysis to determine cell abundance, dimensions and biovolumes from an Epifluorescence Microscope. An Epifluorescence Microscope (conventional and inverted) includes a camera system that generates enlarged images of prepared samples. The microscope uses excitation ultraviolet light and the phenomena of fluorescence and phosphorescence instead of, or in addition to, reflection and absorption of visible light.

Niskin bottle

Supplied Name: Niskin Bottle

Supplied Description:

CTD clean rosette (Niskin) bottles were used to collect water samples.

Instrument Type

Generic Name: Niskin bottle

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0412/

Generic Description:

A Niskin bottle (a next generation water sampler based on the Nansen bottle) is a cylindrical, non-metallic water collection device with stoppers at both ends. The bottles can be attached individually on a hydrowire or deployed in 12, 24, or 36 bottle Rosette systems mounted on a frame and combined with a CTD. Niskin bottles are used to collect discrete water samples for a range of measurements including pigments, nutrients, plankton, etc.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
sta	station number from event log		no_bcodmo_term
cast	CTD cast number from event log		cast
event	event/operation number		event
date	date reported as YYYYMMDD, year, month, day		no_bcodmo_term
lat_n	nominal latitude, (minus = south)	degrees	no_bcodmo_term
bot	CTD rosette bottle number		no_bcodmo_term
depth_n	nominal depth	meters	no_bcodmo_term
h_dino_a	hetertrophic dinoflagellate abundance	cells/ml	no_bcodmo_term
h_dino_v	hetertrophic dinoflagellate biovolume	um^3/cell	no_bcodmo_term
h_dino_m	hetertrophic dinoflagellate biomass	ugC/l	no_bcodmo_term

Database

Contribute Data

Dataset: dinoflagellates
Deployment: TT007

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: dinoflagellatesDeployment: TT007

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Dataset: dinoflagellates
Deployment: TT007