Dataset: MOC10data_lengths
Deployment: AL9808

Zooplankton length data from the 10m2 MOCNESS

Co-Principal Investigator:

Mr Erich Horgan (Woods Hole Oceanographic Institution, WHOI)

Dr Laurence P. Madin (Woods Hole Oceanographic Institution, WHOI)

BCO-DMO Data Manager:

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

Project:

U.S. GLOBEC Georges Bank (GB)

Data URL:

https://www.bco-dmo.org/dataset-deployment/449538/data

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Description

Organism lengths,
samples obtained by the 10 m² MOCNESS system

Note: See companion file containing abundance and additional tow info. moc10data zooplankton abundance (https://www.bco-dmo.org/dataset/2327 )

Any questions, contact:  Erich Horgan Woods Hole Oceanographic Institution Woods Hole, MA  02543  voice: (508) 289-3207 fax: (508) 457-2169  e-mail: ehorgan@whoi.edu  December 27, 2005 mda

Methods & Sampling

Dataset acquisition description

Moc 10 zooplankton length data,

Deployment-specific acquisition description

Moc 10 zooplankton length data,

Data Processing Description

Dataset Processing Description

The catch from each net was subsampled and all animals in the subsample were counted.
Due to the shear volume of data, only those animals found were represented in these on-line data. i.e., no animals with zero abundances were listed.
The precision variation in the latitude and longitude numbers is as reported.
Not all nets for all tows are represented here. Some nets came back empty.

Deployment-specific processing description

<ul>
<li>The catch from each net was subsampled and <u>all</u> animals in the subsample
were counted. </li>
<li>Due to the shear volume of data, only those animals found were represented in these on-line data.
<i>i.e.</i>, no animals with zero abundances were listed. </li>
<li>The precision variation in the latitude and longitude numbers is as reported. </li>
<li>Not all nets for all tows are represented here. Some nets came back empty. </li>
</ul>

More information about this dataset deployment

Funding

Award Number	Funding Source
unknown GB NOAA	National Oceanic and Atmospheric Administration
unknown GB NSF	National Science Foundation

Instruments

MOCNESS10

Supplied Description:

MOCNESS 10 meter square nets (3 millimeter mesh).

Instrument Type

Generic Name: MOCNESS10

Acronym: MOC10

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

Generic Description:

The Multiple Opening/Closing Net and Environmental Sensing System (MOCNESS) is based on the Tucker Trawl principle (Tucker, 1951). The MOCNESS-10 (with 10 m^2 nets) carries 6 nets of 3.0-mm circular mesh which are opened and closed sequentially by commands through conducting cable from the surface (Wiebe et al., 1976). In this system, "the underwater unit sends a data frame, comprising temperature, depth, conductivity, net-frame angle, flow count, time, number of open net, and net opening/closing, to the deck unit in a compressed hexadecimal format every 2 seconds and from the deck unit to a microcomputer every 4 seconds" (Wiebe et al., 1985).

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
cruiseid	cruise identification		cruiseid
year	year, 4 digit year		year
month_local	month of year, local time, (01-12)		month_local
station_std	standard station number		station_std
lat	latitude, negative = South	DD.D	lat
lon	longitude, negative = West	DDD.D	lon
net	net number, one of 4 nets (1-4)		net
species	species name		species
phylum	classification by phylum		phylum
length	length (longest dimension) of individual animal	mm	no_bcodmo_term

Database

Contribute Data

Dataset: MOC10data_lengths
Deployment: AL9808

Organism lengths,
samples obtained by the 10 m² MOCNESS system

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Deployment-specific processing description

Database

Contribute Data

Dataset: MOC10data_lengthsDeployment: AL9808

Organism lengths, samples obtained by the 10 m2 MOCNESS system

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Deployment-specific processing description

Dataset: MOC10data_lengths
Deployment: AL9808

Organism lengths,
samples obtained by the 10 m² MOCNESS system