Cruise Planning Questionnaire

    Vehicle(s) required:
    Name of ship for ROV ops:
    Ch Sci:
Stefan Sievert
Biology Dep
Watson 207
Mailstop 52
    POC / contact info:
Departure port & date:San Diego; Oct 13, 2008
    Distance to first station:
    Number of stations:
    Distance between stations:
maximally 1100 nm
    Total days on station:
6 at Guaymas; 8 at EPR
Arrival port & date:Manzanillo, Mexico; Nov 5, 2008
Op area:NP13
Lat/Lon:Guaymas: 27N 0.2-0.9, 111W 24.8-24; EPR: bulls eye area at 9.50N, 9N 30-56'N, 104W 12-20'W; possibly 13N area
Depth range:Guaymas: 2000 m; EPR 2500-2700 m
    Will the vessel be operating within 200 NM of a foreign country?
    Which country?
    Are visas or special travel documents required?

Funding agency:

Grant or contract number: OCE-0452333; MCB-0702677

    Science objectives/activities planned:
Overall, the focus of our activities will be microbiology. This leg is divided into two separate projects, each supported by a different NSF grant. The first portion of the leg is devoted to study the ecology and geochemistry of microbes able to degrade gaseous hydrocarbons, i.e., ethane, propane, and butane, anaerobically (MCB-0702677). This work will take place at Guaymas Basin (Gulf of California), where these kinds of organisms have been previously identified. Most of our work will involve taking sediment samples with push cores as well as taking fluid samples using major samplers as well isobaric samplers. It is also planned to deploy a large volume pump for filtering hydrothermal fluids in situ. The second portion of the leg will take place at 9N and possibly 13N EPR, and will be devoted to better constraint and characterize chemolithoautotrophic processes at vents (OCE-0452333). We will be primarily sampling diffuse flow vent fluids with majors and isobaric samplers, but also black smoker chimneys and basalts. We also plan to deploy a large volume pump for in situ filtration of diffuse flow fluids. In situ chemistry will be carried out, as well as some targeted sampling of fauna.

WHOI shipboard scientific instrumentation desired:
Fume hood
    Relay transponder for wire use
Deionized water system
CTD/rosette system-70 deg freezer
Walk-in cooler (AT only)
10-liter Niskin bottles
Pinger for wire use

Is nighttime work anticipated on this cruise? Yes

    Critical MET sensors:
    Critical CTD sensors:
oxygen, salinity, temperature, fluorescence, density

Do you need Seabeam? (AT and KN only) Yes

Long baseline (LBL) transponder navigation? Yes No. of xpndrs/nets:
Ultra-short baseline (USBL) navigation? Yes
Doppler/GPS navigation? Yes

Will you be using portable science vans? No How many:

Science Van #1
Science Van #2
Science Van #3

Anticipated standard oceanographic cable use:

Instrument Weight(s)
Maximum Depth
    Conducting hydro
    Steel hydro
    Steel trawl
    .681" fiber optic
    Do you require slip rings?
NoNumber of conductors:
    Do you need non-standard wire?
NoIf so, what type?
    Do you need a traction winch?
Will you be bringing any equipment (winches, blocks, etc.) that lowers equipment over the side? No

If yes, please provide details:
Will there be special requirements for:

    Electrical power
    Equipment handling
    Inter/intraship communications
    Science stowage

If yes to any of the above, please identify: 220 Volts needed in bioanalytical lab and hydrolab

Will any of the following items be used on board?

    Explosive devices
    Portable air compressors
    Flammable gases
    Isotope van

Will hazardous material be used aboard, or deployed by an ROV? Yes

What measures or plans have been made a) in the event of a spill, and b) for the removal and/or disposal of these materials at the completion of the cruise?
a) Hazardous material will be accompanied by the respective spill kit.
b) We plan to take chemicals, waste, and gases off the ship at the next US port