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Abyssal food web
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2019
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Atlantis
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Project Title: |
Collaborative Research: Assessing the relative importance of small vs large particles as sources of nutrition to abyssal communities |
Project Status: |
Submitted |
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Principal Investigator: |
Jeffrey C. Drazen, UH_SOEST |
Project Institution: |
UH_SOEST |
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Project ID: |
106067 |
Version #: |
6 |
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Date Submitted: |
2/7/2018 3:03:00 PM |
Created By: |
Jeffrey C. Drazen |
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Date Last Modified: |
12/19/2019 3:05:00 PM |
URI Serial #: |
None |
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Funding Agencies: |
NSF/OCE/BIO - 1829612 - Funded |
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Summary of Field Work: |
This project entails two cruises to Station Aloha (Hawaii) and one to Sta. M (California) to sample the water column and abyssal seafloor from small particles to large megafauna. Sampling will include CTD casts and in situ particle filtration using McLane pumps for the water column to a depth of 4600meters. Benthic sampling will be done with benthic landers, benthic sled tows (sled provided - Hawaii only), and ROV sampling (Lu'ukai or Jason). ROV sampling will include sediment cores, megafaunal collections, and transecting. |
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Summary of Facility Requirements: |
ROV (Lu'ukai or Jason) or HOV Alvin, slurp gun, bioboxes and sediment cores
CTD with 24 bottle rosette
retriever winch for A-frame based deployments and recoveries of landers
trawl winch for use with benthic sled |
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Summary of other requirements and comments: |
We understand that ROV Lu'ukai is still in the testing phase. It is our preferred ROV if fully functional (for Hawaii cruises) by the time of our proposed cruise but we will request Jason if it is not. |
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Type of Request: |
Collaborative Ship Use |
Request Status: |
Submitted |
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Request ID: |
1010140 |
Created By: |
Jeffrey C. Drazen |
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Date Last Modified: |
12/19/2019 3:05:00 PM |
Date Submitted: |
9/24/2018 9:17:00 PM |
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Year: |
2019
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Ship/Facility: |
Atlantis
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Optimum Start Date:
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3/1/2019 |
Dates to Avoid: |
Targetting springtime for high flux period. Feb15-May15, 2019 or 2020 |
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Earliest Start Date: |
2/15/2019 |
Multi-Ship Op: |
No |
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Latest Start Date: |
5/15/2020 |
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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4 |
1 |
1 |
2 |
8 |
Repeating Cruise?
(within same year) |
No |
Interval: |
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# of Cruises: |
1 |
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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 require a cruise to Station M (200km off Pt. Conception, CA - Ken Smith's time series site) timed for the spring before peak export flux to the seafloor. We will compare our results to an MBARI cruise in October of 2019. So either spring 2019 or 2020 would facilitate our project's goals. The total days requested includes 4 days on station plus a transit day on either side from either San Diego or Monterey. However, we could also take advantage of transit from other ports. We require deep submergence assets to perform our targeted faunal collections on the seafloor - either ROV Jason or HOV Alvin. |
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Short Description of Op Area
for use in schedules: |
Station M |
| Description of Op Area: |
Sta. M is ~220 km offshore of Point Conception in the California Current with a water depth of 4100meters. |
| Op Area Size/Dia.: |
30 |
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Lat/Long |
Marsden Grid |
Navy Op Area |
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Beginning
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34.372° N
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126.139° W
map
34° 22.32' N
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126° 8.34' W
map
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Ending
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34.833333° N
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123° W
map
34° 49.99998' N
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123° 0' W
map
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Show Degrees Minutes |
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Foreign Clearance Required? |
No |
Coastal States:
US EEZ |
 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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Monterey, CA, USA |
None |
Monterey, CA, USA |
Explanation/justification for requested
ports and dates of intermediate stops
or to list additional port stops |
Monterey Bay, San Diego or Santa Barbara would suffice as ports as these are the closest to the study location. However, we are flexible and can take advantage of the submersible assets in transit down the US west coast. |
Important Info on Working in Foreign Ports
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Chief Scientist: |
Jeffrey C. Drazen, UH_SOEST |
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# in Science Party |
6 |
# of different science teams |
2 |
# 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 two teams for this projects. Three people to support the water column sampling with in situ pumps and another (3 people) to support the collection and post dive processing of the megafauna and sediments. If space is available we could bring additional personnel. |
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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. |
CTD with 24 bottle rosette and >4500m of wire.
Benthos deckbox with transducer for lander work.
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Explain Major Ancillary Facilities
Requirements and list description
and provider for "other" systems. |
We require an ROV or HOV for targeted collections of animals and sediment on the seafloor. Requires slurp gun, bioboxes and sediment cores.
We require a retriever winch or other winch for deployment and recover of small benthic moorings/landers (100m mooring lengths). |
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