Dataset: Phytoplankton - Microphytoplankton Station Counts
Deployment: AT21-04

Phytoplankton - Microphytoplankton Station Counts

View Data: For data, See Dataset Metadata Page: https://osprey.bco-dmo.org/dataset/473803

Principal Investigator:

Edward J. Carpenter (San Francisco State University, SFSU)

Student:

Mr Andrew Kalmbach (San Francisco State University, SFSU)

Contact:

Edward J. Carpenter (San Francisco State University, SFSU)

BCO-DMO Data Manager:

Stephen R. Gegg (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

Amazon iNfluence on the Atlantic: CarbOn export from Nitrogen fixation by DiAtom Symbioses (ANACONDAS)

Current State:

Preliminary and in progress

Version:

02 January 2014

Deployment Synonyms:

AN12, ANACONDAS, ROCA

Version Date:

2014-01-02

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Description

Microphytoplankton station counts for the ANACONDAS cruises
Phytoplankton by species in cells/ml

Methods & Sampling

Dataset acquisition description

Sampled 2-6 liters from Niskin bottle attached to CTD rosette. Filtered through 20 micrometer mesh, to concentrate down to 40 ml, and fixed with acid lugol’s solution. Counted taxa on 1-ml Sedgwick rafter cell via light microscopy at 200x.

Data Processing Description

Dataset Processing Description

(See Processing Notes for Individual Deployments)

Deployment-specific processing description

Notes from original spreadsheet for: AT21-04
These are the phytoplankton counts from the Atlantis in july 2012, we sampled at each station and underway
Station counts were 2 liter samples from the CTD at the surface and usually an additional depth (generally the chlorophyll max)
All samples were filtered through 20 µm mesh to concentrate down to about 50 ml, and fixed with Acid lugol's solution
Most samples were further concentrated in a centerfuge for 10 minutes at 2000 RPM (15 ml down to 1 ml)
Concentrate was placed in a Sedgewick Rafter counting chamber, and counted under 320x magnification

Collected by RED, AJK
Counted by EJC, AJK
Data Entry by AJK
Data corrrection by MTM

BCO-DMO Processing Notes
- Generated from original file: "At21-04 Microphytoplankton station counts.xlsx" contributed by Andrew Kalmbach
- Cruise "Id_Year" added to data (i.e. "AN12_2012")
- Event Date/Time GMT added from event logs
- Event Lat/lon added from event logs
- Parameters modified to conform to BCO-DMO parameter naming conventions
- "nd" (Not Detected) inserted into blank cells

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-0934035	NSF Division of Ocean Sciences

Instruments

CTD Sea-Bird SBE 911plus

Supplied Name: CTD SBE 911plus

Supplied Description:

Instrument Type

Generic Name: CTD Sea-Bird SBE 911plus

Acronym: CTD SBE 911plus

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0058/

Generic Description:

The Sea-Bird SBE 911 plus is a type of CTD instrument package for continuous measurement of conductivity, temperature and pressure. The SBE 911 plus includes the SBE 9plus Underwater Unit and the SBE 11plus Deck Unit (for real-time readout using conductive wire) for deployment from a vessel. The combination of the SBE 9 plus and SBE 11 plus is called a SBE 911 plus. The SBE 9 plus uses Sea-Bird's standard modular temperature and conductivity sensors (SBE 3 plus and SBE 4). The SBE 9 plus CTD can be configured with up to eight auxiliary sensors to measure other parameters including dissolved oxygen, pH, turbidity, fluorescence, light (PAR), light transmission, etc.). more information from Sea-Bird Electronics

Niskin bottle

Supplied Description:

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
Id_Year	ANACONDAS Cruise Id and Year of Cruise (ANYY_YYYY)	text	cruise_id
AN_Number	ANACONDAS Sample Id (Sample Id = CruiseIdxxxxx)	text	sample
Station	ANACONDAS Station Id	text	station
Event_Number	ANACONDAS Event Id (Event Id = Station Id.Event Id at station)	text	event
Date_GMT	Event Date (GMT)	YYYYMMDD	date
Time_GMT	Event Time (GMT)	HHMM	time
Latitude	Event Latitude (South is negative)	decimal degrees	lat
Longitude	Event Longitude (West is negative)	decimal degrees	lon

Database

Contribute Data

Dataset: Phytoplankton - Microphytoplankton Station Counts
Deployment: AT21-04

Dataset acquisition description

Dataset Processing Description

Deployment-specific processing description

Database

Contribute Data

Dataset: Phytoplankton - Microphytoplankton Station CountsDeployment: AT21-04

Dataset acquisition description

Dataset Processing Description

Deployment-specific processing description

Dataset: Phytoplankton - Microphytoplankton Station Counts
Deployment: AT21-04