[Sensor_Name: Short_Name='NISKIN BOTTLES']
Univ. of New Hampshire Open Ocean Aquaculture Program, Environmental Monitoring ProjectEntry ID: gomc_204
Abstract: The UNH Open Ocean Aquaculture demonstration project began in 1997.
Purpose: The overall goal of the project is to stimulate the further
development of commercial aquaculture in New England, thereby increasing
seafood production, creating new employment opportunities, and contributing to
economic and community development.
Sponsor: National Oceanic and Atmospheric Administration and the University of
New Hampshire Cooperative Institute for New England Mariculture and ... Fisheries
Materials and Methods: A complete description of the methodologies are given in
the environmental monitoring reports on the UNH OOA web site. Benthos:
Surficial sediments were collected using either a box corer or a grab sampler.
Infauna (> 0.5 mm mesh sieve) from each sediment sample were normally
identified to the level of Family. A subsample from all samples was analyzed
for organic content (loss-on-ignition). Grain size was determined on selected
samples. Grain size was determined by standard sieve and pipette analyses as
described by Folk (1980). The organic fraction of each sample was estimated by
loss-on-ignition (LOI) after Ball (1964). Water Quality: Water samples were
collected with Niskin bottles and analyzed for total suspended sediments,
particulate organic matter (loss-on-ignition), chlorophyll a, and dissolved
inorganic nutrients (ammonium, nitrate-nitrite, phosphate).
Sample Site Locations: The primary sampling area is located is located ~2 km
south of the Isles of Shoals (White Island) and approximately ~12 km southeast
of Portsmouth Harbor, New Hampshire at the intercontinental shelf. Water depths
at the field site are between 50 to 55 meters.
Number of Samples Collected: During each cruise normally between 5 and 8
stations were sampled for benthos, 1 to 3 for water quality, and 1 to 10 for
Data Set Citation
Version: Not provided
Start Date: 1997-01-01
Quality Calibration of Instrumentation:
The quality and use of oceanographic observations depends on regular servicing
and calibration of all instrumentation as part of a rigorous quality control
effort. For the environmental monitoring buoy the calibration activities listed
below were done during the past year.
Return of all Seabird Electronics, Inc. sensors to the factory for servicing,
repair (if needed) and calibration. This is done yearly, generally at the end
of the calendar year.
The air temperature sensor was calibrated at WHOI in a calibration facility
relative to Seabird standards yearly.
The LiCOR PAR sensor was sent back to LiCOR for calibration.
The accelerometer was checked relative to gravity by placing the accelerometer
on a flat surface and measuring the acceleration in all six orientations to get
+1 g readings on all channels. (If the accelerations differ significantly from
factory calibrations, the accelerometer is replaced.)
The A/D on the data logger was checked relative to a voltage calibrator. (If
the A/D is out of specification it is replaced.)
Access Constraints None known
Use Constraints None known
Data Set Progress
Distribution Media: Online Internet (HTTP)
Role: METADATA AUTHOR
Phone: 603 862-2175
Email: lgward at cisunix.unh.edu
University of New Hampshire
Province or State: NH
Postal Code: 03824
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2006-08-24
Last DIF Revision Date: 2018-11-08