+--------------------------------------------------------------------------+ | ATLANTIS CRUISE SYNOPSIS | +--------------------------------------------------------------------------+ Voyage - Leg: AT 15-44 Voyage Dates: 21 Feb - 08 Mar 2009 Chief Scientist(s): Lisa A. Levin Address: Scripps Institution of Oceanography 9500 Gilman Drive La Jolla, California 92093-0218 Phone: 858-534-3579 Email: llevin @ucsd.edu Cruise Objective: We will conduct research in exposed carbonate ecosystems on the Costa Rica margin (700-1,400 m), to test hypotheses about the influence of active seepage on carbonate rock animal communities and their successional phases, on microbial activity including anerobic methane oxidation and sulfide oxidation, on carbon isotopic composition of shelled organisms, and on phylogenetic affinities of animals. To test hypotheses we will sample existing authigenic carbonates from 3 levels of seepage activity: highly active, weak and inactive. Activity level will be defined by presence of /or proximity to bubbles/shimmering water, microbial mat development and megafauna, as well as previous fluid flow and composition measurements made at the Costa Rica study sites. We will sample 5 to 8 locations with each activity level in each study region, controlling for rock size and carbonate configuration when possible. ALVIN: During 3 dives at each of 4 study sites we will conduct bottom surveys and video transects, measure S, T, O2, select 4 to 8 highly active, weakly active and inactive sites, photograph organisms and classify rocks in situ, collect rocks of varying sizes with organisms, and sample nearby sediments and biotic substrata (mussels, tube worms) for taxonomic comparisons. The remaining 2 dives at Costa Rica seeps will be used to conduct follow-up survey and sampling of the most promising locations, based on shipboard sample observations. Nighttime operations will consist of CTD casts (a minimum of one each at Mound 11, Mound 13, Jaco Scarp and Mound Quepos), multicoring (adjacent to mounds and at 400 m and 600 m sites in the OMZ), and pre-dive seabeam surveys. Science Activities: Operations Area: Costa Rica Margin Lat/Lon: 8/9oN 84oW (18' to 49') Depth range: 700-1400 (ALVIN)/400-1400 night Distance to first station: 133 km Number of stations: 4 ALVIN/7 night Distance between stations: 60 km Total days on station: 14 or 15 Departure Port: Puntarenas, Costa Rica Agent: Master R/V Ship Name Attn: Scientist's Name IN TRANSIT c/o Vasile Tudoran Transport 819 Ohio Ave. Long Beach, CA 90804 Contact: Vasile Tudoran Phone: (562) 882-5590 Fax: (562) 434-9800 Email: [1]vtudoran@aol.com Local Address for Large Shipments: SERMAR SA Aptdo 76 Puntarenas, Costa Rica Attn: Manuel Fernandez Phone: 011-506-661-1529 Fax: 011-506-661-2779 Note: Agent and WHOI contacts should be copied on all communications. It is requested that shipment information of any equipment be communicated to the Agent and WHOI contacts Arrival Port: Puntarenas Costa Rica Agent: SHIP Installed or Normally CTD/Rossette 24x10L with Oxygen, T, S, Carried Equipment: Transmission, Fluorescence CTD to 1500m Depth 12 kHz bathymetry system 3.5 kHz bathymetry system ADCP - 75 KHz Oxygen titration apparatus Sci will provide tech (EC 1/19) Relay transponder for wire use Refrigerator -70 deg freezer Walk-in cooler Deionized water system Fume hood Seabeam Long baseline (LBL) transponder navigation No. of xpndrs/nets: 3 at a time/3 nets Ultra-short baseline (USBL) navigation Doppler/GPS navigation WHOI-Provided Equipment: Box corer Multicorer Sci party will have thier own coring tech (EC 1/19) Science Party-Provided Equipment: Notes: nighttime work anticipated Science gear will be left on board until ship arrives in San Diego ALVIN/JASON Installed or Normally Large capacity slurp samplers Carried Equipment: Small capacity slurp samplers Bio collection boxes Push corers Scoop nets Low temperature probe Portable CTD Digital Still Camera Search Sonar Rock Drill (EC 1/19) Elevators Niskin rack-five 1.2L (EC 1/19) Science Party-Provided Rock Drill requested if Jason can loan this... Equipment: Baby Bushmaster for tubeworm collection (sci) Notes: Other Notes: Multi core will be shiped from SIO to Costa Rica (EC 1/19) SSSG Tech: sssg @atlantis.whoi.edu Navy Clearance Granted 01/24/09: Status: WITHIN 5 NM RADIUS OF 10-18N 086-18W DURING PERIOD 210700Z FEB THRU 080700Z MAR 09 WITHIN 20 NM RADIUS OF 09-00N 084-15W DURING PERIOD 210700Z FEB THRU 080700Z MAR 09 Granted 02/20/09: WITHIN 50 NM RADIUS OF 10-18N 086-18W DURING PERIOD 210700Z FEB THRU 080700Z MAR 09 WITHIN 50 NM RADIUS OF 09-00N 084-15W DURING PERIOD 210700Z FEB THRU 080700Z MAR 09 Check List: Required? Comments US Customs Form Yes Diplomatic Clearance Yes Costa Rica has been approved (EC 1/19) Isotope Use Approval No SCUBA Diving No Last Modified: 04/02/2009 References Visible links 1. mailto:vtudoran@aol.com