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Gulf of Maine krill
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2010
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Oceanus
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Project Title: |
Biological and physical determinants of euphausiid aggregation, behavior, and interaction with higher predators at an abrupt topographical feature in the Gulf of Maine |
Project Status: |
Submitted |
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Principal Investigator: |
Gareth Lawson, WHOI |
Project Institution: |
WHOI |
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Project ID: |
101898 |
Version #: |
5 |
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Date Submitted: |
2/17/2009 1:52:00 PM |
Created By: |
Gareth Lawson |
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Date Last Modified: |
6/4/2010 12:48:00 PM |
URI Serial #: |
None |
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Funding Agencies: |
NSF/OCE/BIO - 0928801 - Funded |
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Summary of Field Work: |
Studies will be conducted of the aggregation dynamics of euphausiids, including interactions with herring predators, along the northern flank of Georges Bank and in the southern portion of the Gulf of Maine. A total of four cruises will be conducted, two per year in the falls of each of 2010 and 2011. Each cruise will be 10 days in length, and will involve 24-hour surveying with a combination of four primary instrument platforms: (1) A deep (250m) towed broadband acoustic scattering system, (2) A surface-towed narrowband multi-frequency acoustic scattering system, (3) a 1-m2 MOCNESS plankton net system, and (4) A profiling Video Plankton Recorder (VPR) to be mounted on the CTD. |
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Summary of Facility Requirements: |
An intermediate class vessel (e.g., R/V Oceanus or Endeavor) is requested, to provide the space and capabilities to deploy all of our 4 instrument platforms, including concurrent deployment of the tow-yoed broadband system and surface-towed multi-frequency system. Required facilities include:
1. A winch for a 1000m .5 inch reinforced coax cable, to be used in towing the broadband system.
2. A winch with .322 or .68 conducting cable for deployment of the MOCNESS.
3. A winch and .322 conducting cable for deployment of the CTD/VPR package.
4. Deck space for all instruments and for a J-frame apparatus used previously on the R/V Oceanus and Endeavor for towing the surface multi-frequency system over the side of the vessel.
5. Space for a 20" science van.
6. Access to distilled and seawater. |
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Summary of other requirements and comments: |
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Type of Request: |
Primary Ship Use |
Request Status: |
Submitted |
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Request ID: |
1002737 |
Created By: |
Gareth Lawson |
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Date Last Modified: |
8/10/2009 10:15:00 AM |
Date Submitted: |
2/17/2009 1:52:00 PM |
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Year: |
2010
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Ship/Facility: |
Oceanus
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Optimum Start Date:
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9/20/2010 |
Dates to Avoid: |
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Earliest Start Date: |
9/18/2010 |
Multi-Ship Op: |
No |
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Latest Start Date: |
9/27/2010 |
Other Ship(s): |
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Operating Days Needed: |
Science Days |
Mob Days |
De-Mob Days |
Estimated Transit Days |
Total Days |
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8 |
0 |
0 |
2 |
10 |
Repeating Cruise?
(within same year) |
No |
Interval: |
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# of Cruises: |
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Description of Repeating cruise requirements: |
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Justification/Explanation for ship choice, dates,
conflicts, number of days & multi-ship operations: |
Two cruises doing the same work in the same study location are requested in each of 2010 and 2011. The timing of the cruises has been selected to allow an examination of the impact of herring predation on euphausiid aggregations. The first cruise each year is timed to begin one week after the NOAA Ship Delaware II will have commenced its herring survey. Real-time data collected during that survey will be used to define the exact survey grid for our project. During the time of our first cruise, the herring will be pre-spawning and will not be feeding on euphausiids (the target of our work).
The second cruise each year is timed to begin in the last week of October. At this time, herring and euphausiids will still be present in the study region, but the herring will be post-spawning and will have resumed feeding on euphausiids. |
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Short Description of Op Area
for use in schedules: |
Georges Bank |
| Description of Op Area: |
Surveys will be conducted along the northern flank of Georges Bank and in the southern portion of the Gulf of Maine |
| Op Area Size/Dia.: |
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Lat/Long |
Marsden Grid |
Navy Op Area |
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Beginning
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41° 42' N
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68° 24' W
map
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Ending
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Foreign Clearance Required? |
No |
Coastal States:
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 Important Info on Foreign Research Clearances
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Are you or any member in your science party bringing in any science equipment items which are regulated for export by the International Traffic in Arms Regulations (ITAR) and/or the Export Administration Regulations (EAR)?
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No |
If yes, have you applied for the necessary permits through your export control office?
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No |
| Questions about ITAR/EAR regulations?
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Comments about foreign clearance requirements or
description of any other special permitting requirements
(e.g., MMPA, ESA, IHA, Marine Sanctuaries, etc.) |
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Requested Start Port |
Intermediate Port(s) |
Requested End Port |
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Woods Hole, MA, USA |
None |
None |
Explanation/justification for requested
ports and dates of intermediate stops
or to list additional port stops |
Woods Hole is requested as the start and end port, as all members of the science party are based in Woods Hole, all instruments are located at Woods Hole, and this is one of the closest ports to the location of the proposed field study. |
Important Info on Working in Foreign Ports
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Chief Scientist: |
Gareth Lawson, WHOI |
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# in Science Party |
7 |
# of different science teams |
1 |
# Marine Technicians to be
provided by ship operator:
(include in science party total)
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1 |
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Explanation of Science Party Requirements and Technician Requirements |
We have budgeted for 6 WHOI personnel with the necessary expertise to participate in each cruise, but will also seek additional volunteers to assist during cruises. An operator-provided technician to provide support for CTD, ADCP, and MOCNESS operations is also requested. |
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 Dynamic Positioning | ADCP | Multibeam | Seismic |
| Dredging/Coring/Large Dia. Trawl Wire | Stern A-frame | Fiber Optic (.681) | 0.680 Coax Wire |
| SCUBA Diving | Radioisotope use - briefly describe | NO Radioisotope use/Natural level work | Other Operator Provided Inst. - Describe |
| 0 PI-Provided Vans - briefly describe | MOCNESS | | |
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Explain Instrumentation or Capability
requirements that could affect choice
of ship in scheduling. |
The science party will bring a 20" container modified as a control van for science operations. The list of requirements in terms of cables, winches, and space is described above.
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Explain Major Ancillary Facilities
Requirements and list description
and provider for "other" systems. |
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