Juvenile salmon distribution data from the Gulf of Alaska examines biological and physical influencing factors. Data were collected from four research cruises (GP0108, GP0207, GP0401, MF0310) between 2001 and 2004 by organization SCIOPS. It includes analyses of CTD, ADCP, stomach contents, otolith thermal marks, and Genetic Stock Identification.
Use Cases
- Analyze catch per unit effort against oceanographic regimes to assess distribution drivers for pink, chum, coho, and sockeye salmon.
- Use Genetic Stock Identification data to map the home stream and distribution patterns of hatchery versus wild salmon stocks.
- Correlate CTD and ADCP oceanographic measurements with salmon stomach analysis data to understand prey availability impacts.
- Examine otolith thermal mark data to track hatchery-origin salmon and their spatial distribution across the study region.
Strengths
- Data spans a multi-year period from 2001 to 2004.
- Integrates multiple data types: CTD, ADCP, stomach analysis, otolith marks, and genetic stock IDs.
- Coverage includes four distinct research cruises providing spatial sampling points.
Limitations
- Specific row count, column names, and sample size are unknown.
- Data is temporally stale, last updated in 2004, limiting contemporary analysis.
- Geographic coverage is restricted to the Gulf of Alaska study region.
Provenance
- Source
- SCIOPS, via NASA Earthdata platform.
- Collection Method
- Data collected from ship-based research cruises using trawl sampling, CTD/ADCP instruments, and laboratory analyses of otoliths and genetics.
- Time Range
- 2001-2004
- Freshness
- null
- Geography
- Gulf of Alaska