Dataset: chl_a_3m

Name: Chlorophyll-a on F/V Sea Eagle and F/V Frosti salmon trawl cruises in the Northeast Pacific in 2000 as part of the U.S. GLOBEC program (NEP project)
Published: 2007-04-11
License: https://creativecommons.org/licenses/by/4.0/
Keywords: oceans

Cite This Dataset

Project:

U.S. GLOBEC Northeast Pacific (NEP)

Co-Principal Investigator:

Dr Richard D Brodeur (National Oceanic and Atmospheric Administration, NOAA)

Dr Suzan S Pool (Oregon State University, OSU-CIMRS)

BCO-DMO Data Manager:

Ms Dicky Allison (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version Date:

2007-04-11

Validated:

Yes

Current State:

Final no updates expected

Data URL:

https://www.bco-dmo.org/dataset/2463/data

Chlorophyll-a on F/V Sea Eagle and F/V Frosti salmon trawl cruises in the Northeast Pacific in 2000 as part of the U.S. GLOBEC program (NEP project)

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Archival Copy

Version Date	Archive	Persistent Identifier	Date Assigned
2007-04-11	National Oceanographic Data Center (NODC)	0113923	2013-10-27

Description

U.S. GLOBEC Northeast Pacific, California Current System
Mesoscale Process Studies Chlorophyll a Data

During juvenile salmonid trawling cruises, additional sampling included CTD profiles, neuston net tows, and chlorophyll a water samples. At most stations, data on all parameters were collected.

Contacts for this data set are:
Dr. Richard Brodeur
Northwest Fisheries Science Center
National Oceanographic and Atmospheric Administration
Newport, OR 97365
Phone: 541-867-0336
Email: rick.brodeur@noaa.gov

Suzan Pool
Cooperative Institute of Marine Resources
Oregon State University
Newport, OR 97365
Phone: 541-867-0195
Email: suzan.pool@noaa.gov

Acquisition Description

Replicate samples for in-vitro chlorophyll a were collected from 3-m depth with a 1-l Niskin water sampler. Sampling done at all stations at which salmon trawling was done; additional sampling at most stations was a CTD, plankton sampling.

Processing Description

Samples were immediately filtered through GF/F glass fiber filters, then frozen for further analysis in the laboratory. One of two replicates was processed whereas the other was a back up sample. Chlorophyll a was processed using the cold-acetone extraction method and measured with a Turner Designs 10-AU fluorometer (Arar and Collins, 1997).

References:
Arar, E. J. and G. B. Collins. 1997. Method 445.0: In vitro determination of chlorophyll a and pheophytin a in marine and freshwater algae by fluorescence. U.S. Environmental Protection Agency, 22 p.

More Information about this dataset

Funding Sources

Funding Source	Award Number
National Oceanic and Atmospheric Administration	unknown NEP NOAA
NSF Division of Ocean Sciences	OCE-0000733

Deployments

Deployment	Start Date	Platform	Investigator
FR0206-01	2002-05-31	F/V Frosti	Dr Robert L Emmett (Chief Scientist)	data info
FR0206-02	2002-06-08	F/V Frosti	Dr Richard D Brodeur (Chief Scientist)	data info
FR0208	2002-08-01	F/V Frosti	Dr Robert L Emmett (Chief Scientist) Dr Richard D Brodeur (Co-Chief Scientist)	data info
SE0005	2000-05-29	F/V Sea Eagle	Dr Richard D Brodeur (Co-Chief Scientist) Dr Jackie Popp Noskov (Co-Chief Scientist)	data info
SE0007	2000-07-28	F/V Sea Eagle	Dr Jackie Popp Noskov (Chief Scientist)	data info

Instruments

Niskin bottle

(more info)

Short Name: Niskin bottle

Community Standard Description

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.

PI supplied instrument name: Niskin Bottle

Dataset-specific description

Niskin bottle sample at 3-m depth. Replicate samples for in-vitro chlorophyll a were collected from 3-m depth with a 1-l Niskin water sampler.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
yr	year	dimensionless	year
cruise_id	cruise ID	dimensionless	cruiseid
cast	cast number within cruise	dimensionless	cast
sta_std	standard station name	dimensionless	station_std
lat	latitude (decimal degrees)	decimal degrees	lat
lon	longitude (decimal degrees)	decimal degrees	lon
depth_w	bottom depth of station (meters)	meters	depth_w
month_local	local month	dimensionless	month_local
day_local	local day	dimensionless	day_local
time_local	local time (24-hr)	dimensionless	time_local
inst	sampling instrument	dimensionless	instrument
depth	sample depth (meters)	meters	depth
chl_a	chlorophyll a concentration (ug/L)	ug/L	chl_a
phaeo	phaeophytin a concentration (ug/L)	ug/L	phaeo
comments	comments about particular sample	dimensionless	comment
timezone	Time zone, relative to GMT time.	hours	timezone
ship	Name of the vessel.	dimensionless	ship

Database

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Dataset: chl_a_3m