| Contributors | Affiliation | Role |
|---|---|---|
| Barry, James P. | Monterey Bay Aquarium Research Institute (MBARI) | Principal Investigator |
| De Leo, Giulio Alessandro | Stanford University - Hopkins (Stanford-HMS) | Co-Principal Investigator |
| Monismith, Stephen G. | Stanford University | Co-Principal Investigator |
| Woodson, Clifton Brock | University of Georgia (UGA) | Co-Principal Investigator |
| Rauch, Shannon | Woods Hole Oceanographic Institution (WHOI BCO-DMO) | BCO-DMO Data Manager |
Temperature, oxygen, pH, depth, and conductivity measured at 5 m depth at Hopkins Marine Station from 18 April 2013 to 14 June 2013.
CTD (SeaBird model SeaCat 19Plus (SN 4210)) and pH sensor were deployed at the KFA site, Hopkins Marine Station (average depth = 5m). Added sensors:
-- Aanderra Oxygen Optode (model 4835, SN223),
-- Digital to Analog Converter model 3966 A/D adapter,
-- pH datalogger: Honeywell Model 07777D-06 Durafet III in-line pH electrode with Cap Adapter.
BCO-DMO Processing:
- added columns containing site name, lat, lon, and avg sensor depth (originally provided as header info on the spreadsheet);
- modified parameter names to conform with BCO-DMO naming conventions;
- converted original date/time to ISO8601 format;
- replaced "-999" with "nd" (no data).
| File |
|---|
HMS_5m_hydro.csv (Comma Separated Values (.csv), 806.33 KB) MD5:b12aee632c6c8d84413a13f925f8ab4c Primary data file for dataset ID 707023 |
| Parameter | Description | Units |
| site | Name of the site | unitless |
| lat | Latitude of the site; positive values = north | decimal degrees |
| lon | Longitude of the site; negative values = west | decimal degrees |
| depth_avg | Average depth at which measurements were made | meters |
| ISO_DateTime_PDT | Date and time of measurement (Pacific Daylight Time, PDT) formatted to ISO8601 standard: yyyy-mm-ddTHH:MM:SS | unitless |
| temp_pH_sensor | Temperature measured by pH sensor | degrees Celsius |
| pH | pH (total pH scale) | unitless |
| cond_CTD | Conductivity measured by CTD | millisiemens per centimeter (mS/cm) |
| temp_CTD | Temperature measured by CTD | degrees Celsius |
| depth_CTD | Depth measured by CTD | meters |
| oxygen | Oxygen measured by Aanderra Oxygen Optode | micromoles O2 per liter (µmoles O2/liter) |
| Dataset-specific Instrument Name | Aanderra Oxygen Optode (model 4835, SN223) |
| Generic Instrument Name | Aanderaa Oxygen Optodes |
| Dataset-specific Description | Aanderra Oxygen Optode (model 4835, SN223) |
| Generic Instrument Description | Aanderaa Oxygen Optodes are instrument for monitoring oxygen in the environment. For instrument information see the Aanderaa Oxygen Optodes Product Brochure. |
| Dataset-specific Instrument Name | Honeywell Model 07777D-06 Durafet III |
| Generic Instrument Name | pH Sensor |
| Dataset-specific Description | pH datalogger: Honeywell Model 07777D-06 Durafet III in-line pH electrode with Cap Adapter |
| Generic Instrument Description | An instrument that measures the hydrogen ion activity in solutions.
The overall concentration of hydrogen ions is inversely related to its pH. The pH scale ranges from 0 to 14 and indicates whether acidic (more H+) or basic (less H+). |
| Dataset-specific Instrument Name | SeaBird model SeaCat 19Plus (SN 4210) |
| Generic Instrument Name | CTD Sea-Bird SBE SEACAT 19plus |
| Dataset-specific Description | CTD: SeaBird model SeaCat 19Plus (SN 4210) |
| Generic Instrument Description | Self contained self powered CTD profiler. Measures conductivity, temperature and pressure in both profiling (samples at 4 scans/sec) and moored (sample rates of once every 5 seconds to once every 9 hours) mode. Available in plastic or titanium housing with depth ranges of 600m and 7000m respectively. Minature submersible pump provides water to conductivity cell. |
| Website | |
| Platform | Kelp Forest Array - Hopkins Marine Station |
| Start Date | 2013-04-18 |
| End Date | 2013-06-14 |
Ocean acidification is increasingly recognized as a significant driver of change in marine ecosystems. In particular, ecosystems in eastern boundary current systems, including the California Current Large Marine Ecosystem (CCLME), routinely experience upwelling driven low pH, low dissolved oxygen (DO) waters in shallow near shore habitats, and these occurrences have been increasing in magnitude and duration over the past decade.
The goal of this project is to study the consequences of ocean acidification and other climate-related changes (dissolved oxygen(DO), temperature) in oceanographic conditions on near shore marine communities over a large scale oceanographic gradient in the CCLME. Understanding how the effects of ocean acidification combined with other climate-related changes on individual marine organisms or life stages will cascade to populations and the services they provide is a high priority for science, management, and policy. By integrating the results of oceanographic field measurements and laboratory experiments in a demographic and bio-economic modeling framework, the present project will advance our understanding of the role of oceanographic variability on the dynamics of marine populations and fisheries. In particular, this research will provide key insights regarding the interactive influences of simultaneous changes in pH, DO, and temperature on nearshore populations and fisheries. By investigating the effects of multiple stressors on coastal marine ecosystems, the project will allow us to better anticipate possible ecological and fishery impacts of increasing frequency and/or intensity of low pH and low DO events. A deeper understanding of the linkages among ocean acidification, coastal oceanographic processes and the health of nearshore marine ecosystems in the CCLME will inform adaptation strategies for future ocean conditions.
The research program will implement a novel individual- to population-level approach to specifically investigate how the direct effects of ocean acidification, alone or in combination with low DO and temperature, on two model species of great ecological and commercial relevance, red and pink abalone, will manifest at the population level, and ultimately, the services these species provide to humans. Researchers will: 1) measure and characterize the temporal variability of pH, DO and temperature in nearshore abalone habitat in Monterey Bay, Central California, and Isla Natividad, Mexico, particularly in relation to the duration and intensity of extreme low pH, low DO events, under alternative scenarios of future climate change, 2) conduct laboratory experiments to investigate the effects of low pH, low DO conditions on the reproductive success, growth, calcification, and survival of juvenile red and pink abalone, and 3) develop demographic and bio-economic models to estimate the impacts of environmental and local anthropogenic stressors on the resilience of abalone populations and to assess what management and conservation strategies, including the implementation of networks of marine reserves, may contribute to buffering the negative effects of increased frequency and/or intensity of low pH and low DO events expected under near-future climate scenarios.
NSF Climate Research Investment (CRI) activities that were initiated in 2010 are now included under Science, Engineering and Education for Sustainability NSF-Wide Investment (SEES). SEES is a portfolio of activities that highlights NSF's unique role in helping society address the challenge(s) of achieving sustainability. Detailed information about the SEES program is available from NSF (https://www.nsf.gov/funding/pgm_summ.jsp?pims_id=504707).
In recognition of the need for basic research concerning the nature, extent and impact of ocean acidification on oceanic environments in the past, present and future, the goal of the SEES: OA program is to understand (a) the chemistry and physical chemistry of ocean acidification; (b) how ocean acidification interacts with processes at the organismal level; and (c) how the earth system history informs our understanding of the effects of ocean acidification on the present day and future ocean.
Solicitations issued under this program:
NSF 10-530, FY 2010-FY2011
NSF 12-500, FY 2012
NSF 12-600, FY 2013
NSF 13-586, FY 2014
NSF 13-586 was the final solicitation that will be released for this program.
PI Meetings:
1st U.S. Ocean Acidification PI Meeting(March 22-24, 2011, Woods Hole, MA)
2nd U.S. Ocean Acidification PI Meeting(Sept. 18-20, 2013, Washington, DC)
3rd U.S. Ocean Acidification PI Meeting (June 9-11, 2015, Woods Hole, MA – Tentative)
NSF media releases for the Ocean Acidification Program:
Press Release 10-186 NSF Awards Grants to Study Effects of Ocean Acidification
Discovery Blue Mussels "Hang On" Along Rocky Shores: For How Long?
Press Release 13-102 World Oceans Month Brings Mixed News for Oysters
| Funding Source | Award |
|---|---|
| NSF Division of Ocean Sciences (NSF OCE) |