Juvenile Salmon and Ocean Ecosystem Survey Trawl Data

Oceanographic trawl data from the Juvenile Salmon and Ocean Ecosystem Survey (JSOES), a long-running salmon survey on the U.S. west coast. The dataset, from the National Oceanic and Atmospheric Administration, contains nekton and juvenile salmon collections from surface trawls. It aims to develop a mechanistic understanding of how ocean conditions affect salmon survival and support management forecasts.

Use Cases

• Forecasting adult salmon returns based on correlations between ocean conditions and juvenile survival mentioned in the description
• Modeling trophic dynamics and their effect on juvenile salmonid survival in the Northern California Current
• Evaluating ocean conditions to inform ecosystem-based management strategies for salmon restoration
• Analyzing the distribution and abundance of juvenile Columbia River salmon in relation to ocean indicators

Strengths

• Survey has been conducted for over 23 years, making it the longest-running salmon survey on the west coast
• Data has demonstrated correlations between ocean conditions and salmon distribution, abundance, and survival
• Supports quantitative forecasts of adult salmon returns one to two years in advance

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment
• Data is provided in PDF format, which may complicate automated analysis

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce

Collection Method

Nekton and juvenile salmon collections from surface trawl.

Time Range

Survey has been conducted for over 23 years as of FY20.

Freshness

Last updated 2026-03-14 22:51:06.091494; freshness should be verified

Geography

Northern California Current (NCC) nearshore ecosystem, focusing on juvenile Columbia River salmon.