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ANACONDAS
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2012
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Melville
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Project Title: |
Collaborative Research: ETBC: Amazon iNfluence on the Atlantic: CarbOn export from Nitrogen fixation by DiAtom Symbioses (ANACONDAS) |
Project Status: |
Submitted |
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Principal Investigator: |
Patricia L. Yager, Georgia |
Project Institution: |
Georgia |
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Project ID: |
103110 |
Version #: |
1 |
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Date Submitted: |
8/30/2011 5:04:00 PM |
Created By: |
Patricia L. Yager |
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Date Last Modified: |
8/30/2011 5:04:00 PM |
URI Serial #: |
None |
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Funding Agencies: |
NSF/OCE/BIO - 0934095 - Funded
NSF/BIO - NONE - Funded |
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Summary of Field Work: |
We request one two-week (15 day) research expedition to the nearshore Amazon River plume (0-10N, 45-55W) during late-spring/early summer (May-June). Our preferred port of call would be Barbados. This additional cruise (beyond the two already funded) would allow us to sample the critical inner plume area during the flood stage of the river. Our funded research cruise in May 2010 was not able to sample this area as expected because there was an embassy error in obtaining our coastal permissions from Brazil. We did not discover the error until we were at sea (and compared files with the Brazilan Navy observer onboard). At that point it was too late to fix.
This additional cruise would allow us to survey waters in and around the inner Amazon plume and near the mouth to characterize the diversity and activity of N2-fixing organisms and their impact on C and N export to the deep sea. We will collect water samples for analysis and experimentation using a CTD/rosette and will carry out an extensive suite of experiments to measure the rates of N2-fixation and primary and secondary production in these waters. We will collect zooplankton with a mocness system and bottom samples with a multicorer. |
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Summary of Facility Requirements: |
We request principle use of a large (global-class) ship capable of deploying a CTD/rosette to 1000 m, a multicorer off the fantail with a winch to 5000 m, vertical and diagonal zooplankton nets, and floating sediment traps to 200 m. We will also need a cold van and a radiation safety van onboard. We need to image the seafloor using 12KHz or better sonar system. Support for ~30 scientists onboard. We need a CTD/rosette, a meter mocness system, a hydrowire for deploying nets, a multicorer, and provision for deploying hand nets from the fantail. We also need deck space for flowing seawater incubators and lab space for filtrations, nutrient chemistry, microscopy, core-processing and other lab analyses. |
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Summary of other requirements and comments: |
Results from our May-June 2010 expedition onboard RV Knorr confirmed that the outer plume is a strong sink for CO2. Intermediate salinity stations (mid-plume) show a net balance between autotrophy and heterotropy (CO2-neutral), but the inner plume (for which we only have one station at 16 ppt) suggests that the plume flips back to net-autotrophic (CO2 sink). Since the inner plume covers a large area - having no data from that area makes modeling and whole-ecosystem calculations of the CO2 impact and nutrient budgets difficult. If approved, we would start the Brazil permissions process immediately. We are currently on the verge of getting those permissions for our Melville expedition in September. I will let you know as soon as I know we have them. |
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Type of Request: |
Primary Ship Use |
Request Status: |
Submitted |
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Request ID: |
1004887 |
Created By: |
Patricia L. Yager |
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Date Last Modified: |
8/30/2011 5:04:00 PM |
Date Submitted: |
8/30/2011 5:04:00 PM |
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Year: |
2012
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Ship/Facility: |
Melville
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Optimum Start Date:
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5/15/2012 |
Dates to Avoid: |
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Earliest Start Date: |
5/1/2012 |
Multi-Ship Op: |
No |
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Latest Start Date: |
6/1/2012 |
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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15 |
2 |
1 |
2 |
20 |
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: |
We need a global class vessel to accomplish the various operations over abyssal depths, particularly the coring. Our timing choices reflect that we are trying to capture the maximum flood stage of the river, which occurs during May or June each year. |
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Short Description of Op Area
for use in schedules: |
Amazon plume |
| Description of Op Area: |
Western tropical North Atlantic (defined to the west by South America and the windward islands of the Caribbean, ~61°W, to the south by the equator, and to the north, ~15ºN, and west, ~39ºW) |
| Op Area Size/Dia.: |
Half of (1200 x 780 nm) |
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Lat/Long |
Marsden Grid |
Navy Op Area |
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Beginning
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Ending
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Show Degrees Minutes |
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Foreign Clearance Required? |
Yes |
Coastal States:
Brazil, Barbados, Guyana, Suriname |
 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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Bridgetown, Barbados |
Bridgetown, Barbados |
Bridgetown, Barbados |
Explanation/justification for requested
ports and dates of intermediate stops
or to list additional port stops |
Barbados has easy airport access from US, shipping is relatively easy, liquid nitrogen is available. Intermediate port-of-call would be used for swapping science personnel, shipping home time-sensitive or storage-sensitive samples, refreshing perishable supplies like liquid N2 or dry ice stores. |
Important Info on Working in Foreign Ports
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Chief Scientist: |
Patricia L. Yager, Georgia |
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# in Science Party |
30 |
# of different science teams |
7 |
# Marine Technicians to be
provided by ship operator:
(include in science party total)
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2 |
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Explanation of Science Party Requirements and Technician Requirements |
We will have 7 teams of 3-4 persons each working together to cover all the components of the project. We request two CTD technicians onboard to allow 24/7 deployment and recovery operations. |
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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 |
| 3 PI-Provided Vans - briefly describe | MOCNESS | | |
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Explain Instrumentation or Capability
requirements that could affect choice
of ship in scheduling. |
CTD/Rosette with fluorometer, transmissometer and 24 10-L Niskin bottles
12 KHz sonar for bottom sounding
Multicorer to 5000 m
Hydrowinch for vertical and diagonal net tows
Meter mocness system
Radioisotope van for 14C and 3H to measure phytoplankton and bacterial production.
Cold van (2°C) for handling deep sea sediment cores
Cargo storage van (for deck equipment; not critical)
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Explain Major Ancillary Facilities
Requirements and list description
and provider for "other" systems. |
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