Dataset: fishlarvaeM
Deployment: AL9904

Georges Bank Fish larvae collected in MOCNESS tows, 1995-1999.

Principal Investigator:

Dr Donna L. Johnson (National Marine Fisheries Service, NMFS)

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/449467/data

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Description

Georges Bank Fish Larvae Data from MOCNESS tows

¹Standard Haul Factor: numerical factor (multiplier) used to standardize catches to be expressed as number caught per 10m^2 of sea surface area. Most haul factors range from 1 to 10. The Standard Haul Factor has not been applied to the data reported here.

Any questions, contact:

Donna Johnson
National Marine Fisheries Service, NEFC
Sandy Hook Laboratory
74 Magruder Road
Highlands, NJ  07732

voice: (732) 872-3092
fax: (732) 872-3088
e-mail: djohnson@snook.sh.nmfs.gov

updated June 3, 2004, G.Heimerdinger

Methods & Sampling

Dataset acquisition description

GLOBEC Fish Larvae collected by MOCNESS nets, Standard Haul Factor: numerical factor (multiplier) used to standardize catches to be expressed as number caught per 10m^2 of sea surface area. Most haul factors range from 1 to 10.

Deployment-specific acquisition description

GLOBEC Fish Larvae collected by MOCNESS nets, Standard Haul Factor: numerical factor (multiplier) used to standardize catches to be expressed as number caught per 10m2 of sea surface area. Most haul factors range from 1 to 10.

Data Processing Description

Dataset Processing Description

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

MOCNESS1

Supplied Description:

MOCNESS 1 meter square nets (150 and 335 micrometer mesh).

Instrument Type

Generic Name: MOCNESS1

Acronym: MOC1

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

Generic Description:

The Multiple Opening/Closing Net and Environmental Sensing System or MOCNESS is a family of net systems based on the Tucker Trawl principle. The MOCNESS-1 carries nine 1-m2 nets usually of 335 micrometer mesh and is intended for use with the macrozooplankton. All nets are black to reduce contrast with the background. A motor/toggle release assembly is mounted on the top portion of the frame and stainless steel cables with swaged fittings are used to attach the net bar to the toggle release. A stepping motor in a pressure compensated case filled with oil turns the escapement crankshaft of the toggle release which sequentially releases the nets to an open then closed position on command from the surface. -- from the MOCNESS Operations Manual (1999 + 2003).

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
cruiseid	Cruise id, e.g. EN330, for Endeavor cruise 330		cruiseid
year	Four digit year, local time		year
inst	Instrument identifier (Bongo versus MOCNESS-1)		instrument
station_std	Standard station number on a cruise		station_std
tow	MOCNESS plankton tow statio n number on a cruise		tow
lat	Latitude, at tow start, negative = South	decimaldegrees	lat
lon	Longitude, at tow start, negative = West	decimaldegrees	lon
month_local	Month, (01-12), local time.		month_local
day_local	Day, (01-31) local time.		day_local
time_local	Time, at tow start, local time	HHmm	time_local
vol_filt	Total volume of water filtered per unit time	cubicmeters	vol_filt
net	Net identifier		net
depth_open	Depth at which the net was opened	meters	depth_open
depth_close	Depth at which the net was closed	meters	depth_close
haul_factor_std	Standard Haul Factor1		haul_factor_std
taxon	Taxonomic name of larval fish species		taxon
num_caught	Number of specific fish larvae caught		num_caught
num_measure	Number of fish larvae measured		num_measure
fish_len	Length of fish larvae measured	millimeters	fish_len
num_fish_len	Number of fish larvae at that length		num_fish_len

Database

Contribute Data

Dataset: fishlarvaeM
Deployment: AL9904

Georges Bank Fish Larvae Data from MOCNESS tows

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: fishlarvaeMDeployment: AL9904

Georges Bank Fish Larvae Data from MOCNESS tows

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Dataset: fishlarvaeM
Deployment: AL9904