Dataset: CTD - copepod net hauls

Name: CTD data from ring nets used to collect copepods on the RV/Ira, June-Oct 2017 and May 2019
Published: 2020-07-09
Keywords: oceans

Cite This Dataset

DOI:10.26008/1912/bco-dmo.818213.1

Spatial Extent: N:43.9033 E:-69.5008 S:43.7532 W:-69.5777

Temporal Extent: 2017-06-02 - 2019-05-31

Project:

Collaborative Research: Navigating through space in turbulence tubes: Copepod responses to Burgers' vortex (Burgers_Vortex_Copepods)

Principal Investigator:

David Fields (Bigelow Laboratory for Ocean Sciences)

BCO-DMO Data Manager:

Nancy Copley (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

Version Date:

2020-07-09

Restricted:

Validated:

Yes

Current State:

Final no updates expected

CTD data from ring nets used to collect copepods on the RV/Ira, June-Oct 2017 and May 2019

Abstract:

This dataset reports CTD data from ring nets used to collect copepods on the RV/Ira, June-Oct 2017 and May 2019. Copepods were used in laboratory vortex swimming studies.

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Archival Copy

Version Date	Archive	Persistent Identifier	Date Assigned
2020-07-09	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.26008/1912/bco-dmo.818213.1	2021-01-05

Description

This dataset reports CTD data from ring nets used to collect copepods on the RV/Ira, June-Oct 2017 and May 2019. Copepods were used in laboratory vortex swimming studies.

Methods & Sampling

Vertical Net Hauls were made with a 0.75 cm diameter ring net and 333 um mesh size. A solid cod end was used to maintain high-quality live animals. Animals were sorted in the lab.

Data from CTD/rosette was extracted using SBEDataprocessing-win32.

Data Processing Description

BCO-DMO Processing Notes:
- processed original Excel file "Fields 1537579 - Samples Sent.xlsx", submitted 2020-07-07
- pre-processing in Excel: "Shipping dates" sheet:
- made the lat/lon formats consistent. Assumed they were degree-decimal minute
- added conventional header with dataset name, PI name, version date
- renamed columns to conform with BCO-DMO naming conventions (removed units and special characters)
- concatenated 5 sheets (cruise data) from submitted file
- reformatted date from yyyymmdd to yyyy-mm-dd
- reduced precision of data: Temperature/Salinity/Density from 4 to 2; O2_pcent_sat from 5 to 2; PAR from exponential notation to 5 decimal places
- joined lat and lon to concatenated ctd sheets
- final table saved as .csv file

Data Files

File
CTD.csv (Comma Separated Values (.csv), 139.44 KB) MD5:59ec597eb138d66e724ca549ea1b4f12 Primary data file for dataset ID 818213

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1537579

Deployments

None available yet

Instruments

CTD Sea-Bird

Supplied Name: Sea-Bird Electronics (SBE) CTD

Supplied Description:

Instrument Type

Generic Name: CTD Sea-Bird

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/130/

Generic Description:

Conductivity, Temperature, Depth (CTD) sensor package from SeaBird Electronics, no specific unit identified. This instrument designation is used when specific make and model are not known. See also other SeaBird instruments listed under CTD. More information from Sea-Bird Electronics.

Photosynthetically Available Radiation Sensor

Supplied Name: Biospherical scalar PAR sensor

Supplied Description:

Instrument Type

Generic Name: Photosynthetically Available Radiation Sensor

Acronym: PAR sensor

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/122/

Generic Description:

A PAR sensor measures photosynthetically available (or active) radiation. The sensor measures photon flux density (photons per second per square meter) within the visible wavelength range (typically 400 to 700 nanometers). PAR gives an indication of the total energy available to plants for photosynthesis. This instrument name is used when specific type, make and model are not known.

Ring Net

Supplied Name:

Supplied Description:

A ring net with a 0.75 cm diameter, 333 um mesh size, and a solid cod-end was used to capture live copepods.

Instrument Type

Generic Name: Ring Net

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/22/

Generic Description:

A Ring Net is a generic plankton net, made by attaching a net of any mesh size to a metal ring of any diameter. There are 1 meter, .75 meter, .25 meter and .5 meter nets that are used regularly. The most common zooplankton ring net is 1 meter in diameter and of mesh size .333mm, also known as a 'meter net' (see Meter Net).

WET Labs {Sea-Bird WETLabs} C-Star transmissometer

Supplied Name: WET Labs C-Star transmissometer

Supplied Description:

Instrument Type

Generic Name: WET Labs {Sea-Bird WETLabs} C-Star transmissometer

Acronym: WL CSTAR Trans

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0160/

Generic Description:

The C-Star transmissometer has a novel monolithic housing with a highly intgrated opto-electronic design to provide a low cost, compact solution for underwater measurements of beam transmittance. The C-Star is capable of free space measurements or flow-through sampling when used with a pump and optical flow tubes. The sensor can be used in profiling, moored, or underway applications. Available with a 6000 m depth rating.

More information on Sea-Bird website: https://www.seabird.com/c-star-transmissometer/product?id=60762467717

WETLabs ECO-FLNTU

Supplied Name: ECO-FLNTU fluorometer

Supplied Description:

Instrument Type

Generic Name: WETLabs ECO-FLNTU

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0215/

Generic Description:

The ECO FLNTU is a dual-wavelength, single-angle sensor for simultaneously determining both chlorophyll fluorescence and turbidity.

Parameters

Date and time formats are described in python strftime() syntax.

Supplied Name	Supplied description	Supplied Units	Standard Name
Station	Station identifier	unitless	station
lat	Latitude; north is positive	decimal degrees	lat
lon	Longitude; east is positive	decimal degrees	lon
Date	Cast date Format: yyyy-mm-dd	unitless	date
Depth	Depth	meters	depth
Temperature	Temperature	degrees Celsius	temp
Salinity	Salinity	Practical Salinity Units (PSU)	sal
Density	Density	kilograms/cubic meter (kg/m^3)	density
PAR	Irradiance	microEinsteins/meter^2/second (uE/m^2/sec)	PAR
Fluorescence	Fluorescence	milligrams/cubic meter (mg/m3)	fluor
Turbidity	Turbidity	Nephelometric Turbidity Units (NTU)	turbidity
Beam	Beam attenuation	per meter (1/m)	beam_cp
O2_umol	Dissolved oxygen concentration	micromol/kilogram (umol/Kg)	O2
O2_pct_sat	Oxygen percent saturation	unitless	O2_sat_pcnt

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Database

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Dataset: CTD - copepod net hauls