| Contributors | Affiliation | Role |
|---|---|---|
| Karl, David M. | University of Hawaii at Manoa (SOEST) | Principal Investigator |
| Bottjer, Daniela | University of Hawaii at Manoa (SOEST) | Contact |
| Nahorniak, Jasmine | Oregon State University (OSU-CEOAS) | Data Manager |
| Gegg, Stephen R. | Woods Hole Oceanographic Institution (WHOI BCO-DMO) | BCO-DMO Data Manager |
CTD measurements from three mesocosms located near Hawaii as well as the surrounding Pacific waters from Dec 6-11, 2011. The first mesocosm (BAG-1A) was a control. The following nutrients were added to the other two mesocosms (BAG-1B and BAG-1C): N, Si, trace metals and vitamins. In addition, phosphorus was added to BAG-1C only.
# C-MORE BAG-EM-UP/BAG-1 CTD data
# Laboratory for Microbial Oceanography
# David Karl
# CMORE/BAG-EM-UP
# date ingested into BCO-DMO: March 17 2015
| File |
|---|
CTD_bag1.csv (Comma Separated Values (.csv), 617.14 KB) MD5:3793965706d8597c427e8d08e7de0615 Primary data file for dataset ID 553900 |
| Parameter | Description | Units |
| date | date | YYYYMMDD |
| location_id | location ID | dimensionless |
| treatment | treatment applied | dimensionless |
| lat | latitude (positive north) | decimal degrees |
| lon | longitude (positive east) | decimal degrees |
| press | pressure | decibars |
| temp | temperature | degrees Celsius (ITS-90) |
| sal | salinity | dimensionless (PSS-78) |
| cond | conductivity | milliSiemens/centimeter |
| sigma_t | potential density | kilograms/meter^3 - 1000 |
| pH | pH | dimensionless |
| chl_a | chlorophyll a concentration | micrograms/liter |
| turbidity | turbidity | Formazin Turbidity Unit (FTU) |
| O2_sat_pcnt | oxygen saturation | percent |
| O2 | oxygen; dissolved | milligrams/liter |
| PAR | PAR | microEinsteins/meter^2/second |
| Dataset-specific Instrument Name | CTD SBE 911plus |
| Generic Instrument Name | CTD Sea-Bird SBE 911plus |
| Generic Instrument Description | The Sea-Bird SBE 911 plus is a type of CTD instrument package for continuous measurement of conductivity, temperature and pressure. The SBE 911 plus includes the SBE 9plus Underwater Unit and the SBE 11plus Deck Unit (for real-time readout using conductive wire) for deployment from a vessel. The combination of the SBE 9 plus and SBE 11 plus is called a SBE 911 plus. The SBE 9 plus uses Sea-Bird's standard modular temperature and conductivity sensors (SBE 3 plus and SBE 4). The SBE 9 plus CTD can be configured with up to eight auxiliary sensors to measure other parameters including dissolved oxygen, pH, turbidity, fluorescence, light (PAR), light transmission, etc.). more information from Sea-Bird Electronics |
| Website | |
| Platform | R/V Ka`imikai-O-Kanaloa |
| Report | |
| Start Date | 2011-12-03 |
| End Date | 2011-12-13 |
| Description | BAG EM UP (Biogeochemistry and Genomes (BAG-1) Mesocosm Experiment: Experimental
Long term ocean ecology characterization is predicated on a variety of in situ shorter term experiments and field exercises. These shorter term experiments can be generally classed in one of two ways. The first way of approach is to observe or capture physical or biogeochemical ocean events that are short term in duration or in location. We would consider the use of the research vessel or autonomous vehicle, or sediment trap part of this first approach. The second type of experiment is also an in situ approach, where one perturbs a “subset” of the natural ecosystem by manipulating or isolating various features (and/or processes) to test a hypothesis. This is illustrated with the use of instruments such as the wave pump (transport mechanism) or with our current effort to utilize a system of larger ‘bags’ called mesocosms (larger volume subset ) to induce a phytoplankton response. Historically, the mesocosm is akin to the use of lakes or ponds to test the growth response (negative or positive) of an ecosystem when artificially exposed to a variety of chemical substances. The mesocosm does enclose a larger mass of water but it is different from a pond or lake, in that the ratio of the vertical depth (benthic) to the horizontal affords the user unique opportunities to simulate depth or measure stratified characteristics of plankton communities. In this particular cruise experiment, IFM‐GEOMAR and C‐MORE are partnering together to utilize three mesocosms in the open ocean to study the biogeochemical effects to Deep Sea Water (DSW) nutrient additions. This exercise has both engineering and scientific components. The first part is to test the feasibility of deploying and successfully maintaining large scale mesocosms in the open ocean. This mesocosm design has been successfully used in the Arctic region: Ny‐Alosund | Svalbard, so our goal is to extend its usage into more potential hostile conditions. The second part is to measure the surface response of the phytoplankton when deep water macro and micro nutrients are added in.
Website
Introduction
Post Cruise Summary
Cruise Log
Bridge Log
Cast Sheets |
The Center for Microbial Oceanography: Research and Education (C-MORE) is a recently established (August 2006; NSF award: EF-0424599) NSF-sponsored Science and Technology Center designed to facilitate a more comprehensive understanding of the diverse assemblages of microorganisms in the sea, ranging from the genetic basis of marine microbial biogeochemistry including the metabolic regulation and environmental controls of gene expression, to the processes that underpin the fluxes of carbon, related bioelements and energy in the marine environment. Stated holistically, C-MORE's primary mission is: Linking Genomes to Biomes.
We believe that the time is right to address several major, long-standing questions in microbial oceanography. Recent advances in the application of molecular techniques have provided an unprecedented view of the structure, diversity and possible function of sea microbes. By combining these and other novel approaches with more well-established techniques in microbiology, oceanography and ecology, it may be possible to develop a meaningful predictive understanding of the ocean with respect to energy transduction, carbon sequestration, bioelement cycling and the probable response of marine ecosystems to global environmental variability and climate change. The strength of C-MORE resides in the synergy created by bringing together experts who traditionally have not worked together and this, in turn, will facilitate the creation and dissemination of new knowledge on the role of marine microbes in global habitability.
The new Center will design and conduct novel research, broker partnerships, increase diversity of human resources, implement education and outreach programs, and utilize comprehensive information about microbial life in the sea. The Center will bring together teams of scientists, educators and community members who otherwise do not have an opportunity to communicate, collaborate or design creative solutions to long-term ecosystem scale problems. The Center's research will be organized around four interconnected themes:
Each theme will have a leader to help coordinate the research programs and to facilitate interactions among the other related themes. The education programs will focus on pre-college curriculum enhancements, in service teacher training and formal undergraduate/graduate and post-doctoral programs to prepare the next generation of microbial oceanographers. The Center will establish and maintain creative outreach programs to help diffuse the new knowledge gained into society at large including policymakers. The Center's activities will be dispersed among five partner institutions:
and will be coordinated at the University of Hawaii at Manoa.
| Funding Source | Award |
|---|---|
| NSF Division of Biological Infrastructure (NSF DBI) |