NASA-NOAA Fisheries Task Ben Holt, Ed Armstrong, Yi Chao-JPL. Goal : Develop applications with NOAA fisheries groups to incorporate NASA satellite ocean data products into fisheries and marine resources management and assessment activities that will lead to decision support tools.
NASA-NOAA Fisheries Task
Ben Holt, Ed Armstrong, Yi Chao-JPL
Goal: Develop applications with NOAA fisheries groups to incorporate NASA satellite ocean data products into fisheries and marine resources management and assessment activities that will lead to decision support tools.
•Joint NASA/NOAA workshop held Monterey, May 2006
•Support by NASA provided to 4 NOAA projects
•Task management by JPL to setup subcontracts, provide guidance and analysis as needed.
2) Stock assessment - Cod/haddock - New England
3) Stock assessment - Sablefish - Alaska
4) Marine habitat classification - Sea turtle by-catch, 2 year study
Data Sets of Primary Interest :
•Sea surface temperature, ocean color, sea surface height
•Long time series
Stock assessment - Rockfish Fishery rebuilding tool (West Coast US)
R. Methot-NOAA, A. Punt, C. Holt, N. Mantua-U. Washington
E. Armstrong, B. Holt - JPL
Pacific Ocean Perch
Goal: Identify biological, chemical, physical indicators of
conditions in California Current that have influenced long-term
trends in recruitment of West Coast groundfish species.
•Long life spans >50 years.Spawn offshore and nearshore (and then settle nearshore).
SST frontal products
SST gradients of .025 degC / km (i.e., 2.5 degC / 100 km)
Global .25 deg spatial resolution, daily temporal, cloud free (no missing data)
10 day frontal products calculated continuously from 1985-2006
Probability of SST fronts in coastal habitat for groundfish larval
•Hypothesis: recruitment success increases with the number and complexity of fronts
•Has led to development of new SST frontal product at PODAAC
Using Satellite Data to Improve Short-Term Recruitment Predictions for Cod and Haddock – Jon Brodziak, NMFS/PIFSC
Fishery Stock Assessment Models
•The recruitment prediction problem - what regulates the production of juvenile fish?
•Is recruitment strength environmentally driven or is spawner abundance the dominant effect ?
•Primary productivity on Georges Bank during autumn feeding season prior to spring spawning to index spawning condition and gonadal development – primary productivity from SeaWIFS derived products
•Sea surface temperature on Georges Bank during spawning season to index thermal effects on larval growth; both cod and haddock have optimal temperature windows based on laboratory rearing studies – SST from AVHRR Pathfinder
Friedland et al. 2008.
Does the fall phytoplankton bloom control recruitment of Georges Bank haddock through parental condition? Can. J. Fish. Aquat. Sci.
Georges Bank Cod
Goal: Achieve optimum fishery yield
Cod long-term potential yield MSY = 31 kt, worth about $62 million/yr
Cod recent average yield RAY = 5 kt
Haddock MSY = 33 kt, worth about $66 million/yr
Haddock RAY = 18 kt
Maintain fishing communities by maximizing total allowable catches under court-mandated Amendment 13 rebuilding plan
Improve stakeholder buy-in by including environmental effects on groundfish recruitment
Integrating Environmental, Fisheries and Electronic
Tag Data to Characterize Sea Turtle Habitat
Bograd, Palacios (Southwest Fisheries Science Center)
Howell, Polovina (Pacific Islands Fisheries Science Center)
Orphanides, Murray (Northeast Fisheries Science Center)
Altimetry (surface gesotrophic currents, MKE, EKE)
Ocean Color (surface chlorophyll-a, fronts)
Sea Surface Temperature
Tagging of Pacific Predators (TOPP)
Electronically-Tagged Leatherback Turtles
Two Phases of Migration - Dispersal
Eddy kinetic energy from sea-level anomaly (u’,v’)
•Migration corridor- highly energetic tropical Pacific, turtle speeds are high, heading varies with currents
•Central subtropical gyre - very low EKE, very slow movements of the turtles, foraging
Foraging in an Oceanographic “Cold Spot”
Climatological surface chlorophyll from SeaWiFS
•Turtles hang out for long time in very low productive ocean, foraging, but why there??
•Speculation: relative quiesence, high water clarity of the region to enable them to forage with minimal energy expenditure
• High seas time-area closure based on minimum EKE region?
The PIFSC TurtleWatch product
Loggerheads (satellite tags)
Based on NESDIS SST (GAC 4 km 3 day average) and JPL Geostrophic Currents (9 km 7 day)
Provided daily by email to industry/managers and hand carried to fishers
Also translated into Vietnamese
Also distributed by GeoEye to fishers
Alaskan Sablefish ProjectS. Kalei Shotwell & Dana H. Hanselman
Early Life History