Dataset: DeZoZoo Cruise Data
Deployment: HRS100920JP

Cruise Data from Gelatinous Zooplankton project in Chesapeake Bay in 2010 and 2011

Principal Investigator:

James J. Pierson (University of Maryland Center for Environmental Science, UMCES/HPL)

Co-Principal Investigator:

Mary Beth Decker (Yale University)

BCO-DMO Data Manager:

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

Project:

Hypoxia in Marine Ecosystems: Implications for Neritic Copepods (DeZoZoo)

Current State:

Final with updates expected

Version:

first draft

Deployment Synonyms:

DZZ1003

Version Date:

2014-08-07

Data URL:

https://www.bco-dmo.org/dataset-deployment/521602/data

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Description

Cruise metadata from the Gelatinous Zooplankton portion of the Dead Zone Zooplankton project. Includes gear types and mesh sizes, locations, dissolved oxygen in the water column,depths sampled and volume of water filtered.

Methods & Sampling

Dataset acquisition description

Data Processing Description

Dataset Processing Description

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-0961924	NSF Division of Ocean Sciences

Instruments

MOCNESS

Supplied Description:

Instrument Type

Generic Name: MOCNESS

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. There are currently 8 different sizes of MOCNESS in existence which are designed for capture of different size ranges of zooplankton and micro-nekton Each system is designated according to the size of the net mouth opening and in two cases, the number of nets it carries. The original MOCNESS (Wiebe et al, 1976) was a redesigned and improved version of a system described by Frost and McCrone (1974).(from MOCNESS manual) This designation is used when the specific type of MOCNESS (number and size of nets) was not specified by the contributing investigator.

Tucker Trawl

Supplied Description:

Gelatinous zooplankton samples were collected with a 280 micron-meshed Tucker Trawl.

Instrument Type

Generic Name: Tucker Trawl

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/NETT0161/

Generic Description:

The original Tucker Trawl, a net with a rectangular mouth opening first built in 1951 by G.H. Tucker, was not an opening/closing system, but shortly thereafter it was modified so that it could be opened and closed. The original had a 183 cm by 183 cm flexible rectangular mouth opening 914 cm long net with 1.8 cm stretched mesh for the first 457 cm and 1.3 cm mesh for last 457 cm. 152 cm of coarse plankton or muslin netting lined the end of the net. Tucker designed the net to collect animals associated with the deep scattering layers, principally euphausiids, siphonophores, and midwater fish. (from Wiebe and Benfield, 2003). Currently used Tucker Trawls usually have 1-m2 openings and can have a single net or multiple nets on the frame.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
cruise	Internal cruise identifier: Dead Zone Zooplankton: First two digits denote Year (10=2010; 11=2011) Last two digits denote cruise number for that year	text	cruise_name
cruise_official	UNOLS cruise identifier	text	cruise_name
station	Station Count	number	station
lat	Latitude	degrees	lat
lon	Longitude	degrees	lon
sample_ID	Unique ID for each Sample (#-AAA-#-#) First number is station; Letters denote gear type; second number is gear deployment sequence [called cast by DMO]; third number is Net number per deployment; broken up into its component parts to be served	alphanumeric	sample
cast	gear deployment sequence	number	cast
net	net number per deployment	number	net
occupation	relative geolocation: South station near mouth of Rappohannock River; North station near mouth of Choptank River	text	no_bcodmo_term
year	Year	4-digit year	year
month_local	month	number	month_local
day_local	day of the month	number	day_local
time_local	time of net tow	HH:MM;24-hour clock	time
gear	type of trawl	text	instrument
mesh	Size of Mesh	microns	net_mesh
depth_relative	Depth of a net: surface= surface to above pycnocline; pycnocline = through pycnocline; below pycnocline = between bottom and pycnocline; bottom = bottom to below pycnocline	text	depth_comment
depth_start_nom	Sampling depth at start of tow	meters	depth
depth_end_nom	Sampling depthat end of tow	meters	depth
preservation	Type of preservative used for the samples	text	no_bcodmo_term
tow_duration	Time a net actively fished	minutes	no_bcodmo_term
vol_filt	Amount of water filtered	cubic meters	vol_filt
O2_mg_L_mean	Dissolved Oxygen averaged over the depth of a fishing net	milligrams per liter	O2_mg_L
time_accuracy	Percent of time net fished within designated depths to an accuracy of plus or minus 1 minute	minutes	no_bcodmo_term
ISO_DateTime_Local	ISO standard formatted Time	alphanumeric	ISO_DateTime_Local
comments	notes	text	comment

Database

Contribute Data

Dataset: DeZoZoo Cruise Data
Deployment: HRS100920JP

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: DeZoZoo Cruise DataDeployment: HRS100920JP

Dataset acquisition description

Dataset Processing Description

Dataset: DeZoZoo Cruise Data
Deployment: HRS100920JP