Date Created: 13 December 2017
Updated: 26 January 2018
Platform: NOAA Ship FSV Bell M Shimada
Project Number: CalCOFI 1802SH (OMAO SH-18-01)
Project Title: Winter 2018 CalCOFI Survey, Fisheries Resources Division
Project Dates: 1 - 11 February 2018
MOB Dates: 29 - 31 Jan 2018
DOB Dates: 12 Feb 2018
Prepared by: Bryan Overcash, Chief Scientist
- Cruise Instructions PDF (pending);
- Station Order & Coordinates;
- Chemical Inventory
- Station Activities
- Predicted Station Schedule (pending)
A. Brief Summary and Project Period
Survey the distributions and abundances of pelagic fish stocks, their prey, and their biotic and abiotic environments in the area of the California Current between San Francisco, California and San Diego, California during the period of February 01 to February 11, 2018.
B. Days at Sea (DAS)
Of the 11 DAS scheduled for this project, 11 are funded by a Line Office Allocation. This project is estimated to exhibit a High Operational Tempo.
C. Operating Area
The area covered during this survey will be from San Diego to San Francisco and extend approximately 200 miles offshore (please see appendices 1b & 2a).
D. Summary of Objectives
Survey the distributions and abundances of pelagic fish stocks, their prey, and their biotic and abiotic environments in the area of the California Current between San Francisco, California and San Diego, California.
The following are specific objectives for the winter CalCOFI.
I.D.1. Continuously sample pelagic fish eggs using the Continuous Underway Fish Egg Sampler (CUFES). The data will be used to estimate the distributions and abundances of spawning hake, anchovy, mackerel, and early spawning Pacific sardine.
I.D.2. Continuously sample multi-frequency acoustic backscatter using the Simrad EK60/80 and the Simrad ME70. The data will be used to estimate the distributions and abundances of coastal pelagic fishes (e.g., sardine, anchovy, and mackerel), and krill species.
I.D.3. Continuously sample sea-surface temperature, salinity, and chlorophyll-a using a thermosalinometer and fluorometer. These data will be used to estimate the physical oceanographic habitats for target species.
I.D.4. Continuously sample air temperature, barometric pressure, and wind speed and direction using an integrated weather station.
I.D.5. Sample profiles of seawater temperature, salinity, chlorophyll-a, nutrients, and phytoplankton using a CTD with water-sampling rosette and other instruments at prescribed stations. Measurements of extracted chlorophyll and phaeophytin will be obtained with a fluorometer. Nutrients will be measured with an auto-analyzer.
I.D.6. Sample the light intensity in the photic zone using a standard secchi disk in conjunction with a daytime CTD station.
I.D.7. Sample plankton using a CalBOBL (CalCOFI Bongo Oblique) at prescribed stations. These data will be used to estimate the distributions and abundances of ichthyoplankton and zooplankton species.
I.D.8. Sample plankton using a Manta (neuston) net at prescribed stations. These data will be used to estimate the distributions and abundances of ichthyoplankton species.
I.D.9. Sample the vertically integrated abundance of fish eggs using a Pairovet net at prescribed stations. These data will be used to quantify the abundances and distributions of fish eggs.
I.D.10. Sample plankton using a PRPOOS (Planktonic Rate Processes in Oligotrophic Ocean Systems) net at all prescribed CalCOFI stations on lines 90.0 and 80.0 as well as stations out to and including station 70.0 on lines 86.7 and 83.3 and station 81.8 46.9. PRPOOS will not be towed on SCCOOS stations. These data will be used in analyses by the LTER (Long Term Ecological Research) project.
I.D.11. Continuously sample profiles of currents using the RDI/Teledyne Acoustic Doppler Current Profiler. This will be dependent on the ability to sync the ADCP’s output with the EK60/80 and ME70. The EK60 and ME70 will hold priority over the ADCP.
I.D.12. Continuously observe, during daylight hours, seabirds and mammals. These data will be used to estimate the distributions and abundances of seabirds and marine mammals.
E. Participating Institutions
I.E.1 Southwest Fisheries Science Center (SWFSC)
I.E.2 Scripps Institution of Oceanography (SIO)
I.E.3 Farallon Institute Advanced Ecosystem Research (FIAER)