| Contributors | Affiliation | Role |
|---|---|---|
| Durbin, Edward | University of Rhode Island (URI-GSO) | Principal Investigator |
| Groman, Robert C. | Woods Hole Oceanographic Institution (WHOI BCO-DMO) | BCO-DMO Data Manager |
Contributed by: Maria Casas and Ted Durbin
Date: February 13, 2004
This data object shows all the species identified during the US GLOBEC Georges Bank broad-scale cruises, including MOC and Pump instruments. This list will be used by the Zooplankton meter2 count data from GSO/URI and the Zooplankton meter3 count data from GSO/URI data objects to help define which species were expected to be found.
| File |
|---|
all_species_seen.csv (Comma Separated Values (.csv), 3.97 KB) MD5:0cb1ad61342419f7c6d0713a4220a229 Primary data file for dataset ID 2292 |
| Parameter | Description | Units |
| taxon_code | Taxon 10 digit code | |
| taxon | Taxon name |
| Dataset-specific Instrument Name | MOCNESS.25 |
| Generic Instrument Name | MOCNESS.25 |
| Dataset-specific Description | MOCNESS 1/4 meter square nets. |
| Generic Instrument 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-1/4 carries nine 1/4-m2 nets usually of 64 micrometer mesh and is used to sample the larger micro-zooplankton. |
| Dataset-specific Instrument Name | MOCNESS1 |
| Generic Instrument Name | MOCNESS1 |
| Dataset-specific Description | MOCNESS 1 meter square nets (150 and 335 micrometer mesh). |
| Generic Instrument 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). |
| Dataset-specific Instrument Name | MOCNESS10 |
| Generic Instrument Name | MOCNESS10 |
| Dataset-specific Description | MOCNESS 10 meter square nets (3 millimeter mesh). |
| Generic Instrument 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). |
| Dataset-specific Instrument Name | Pump3 |
| Generic Instrument Name | Zooplankton Pump - gas powered diaphragm |
| Dataset-specific Description | Gas-powered, single diaphragm water pump. |
| Generic Instrument Description | This kind of diaphragm pump, manufactured by Homelite and run on gasoline, is called a positive displacement pump because it pumps a specific volume for each pump cycle. Diaphragm pumps move fluids more slowly than centrifugal pumps but treat the animals more gently and they can handle thicker mud and larger amounts of solids. They also tolerate air being drawn into the pump and can be run dry without damage. In 2002, Homelite was acquired and became Riverside Pump Manufacturing, Inc. Diaphragm pumps feature a straight through self priming design and the rubber elastomer diaphragm and flapper valves are easily replaced on site. |
The U.S. GLOBEC Georges Bank Program is a large multi- disciplinary multi-year oceanographic effort. The proximate goal is to understand the population dynamics of key species on the Bank - Cod, Haddock, and two species of zooplankton (Calanus finmarchicus and Pseudocalanus) - in terms of their coupling to the physical environment and in terms of their predators and prey. The ultimate goal is to be able to predict changes in the distribution and abundance of these species as a result of changes in their physical and biotic environment as well as to anticipate how their populations might respond to climate change.
The effort is substantial, requiring broad-scale surveys of the entire Bank, and process studies which focus both on the links between the target species and their physical environment, and the determination of fundamental aspects of these species' life history (birth rates, growth rates, death rates, etc).
Equally important are the modelling efforts that are ongoing which seek to provide realistic predictions of the flow field and which utilize the life history information to produce an integrated view of the dynamics of the populations.
The U.S. GLOBEC Georges Bank Executive Committee (EXCO) provides program leadership and effective communication with the funding agencies.
U.S. GLOBEC (GLOBal ocean ECosystems dynamics) is a research program organized by oceanographers and fisheries scientists to address the question of how global climate change may affect the abundance and production of animals in the sea.
The U.S. GLOBEC Program currently had major research efforts underway in the Georges Bank / Northwest Atlantic Region, and the Northeast Pacific (with components in the California Current and in the Coastal Gulf of Alaska). U.S. GLOBEC was a major contributor to International GLOBEC efforts in the Southern Ocean and Western Antarctic Peninsula (WAP).
| Funding Source | Award |
|---|---|
| National Science Foundation (NSF) | |
| National Oceanic and Atmospheric Administration (NOAA) |
