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‘Tis the season for clear waters

December 13, 2021

Holiday sampling along the Newport Hydrographic Line and maiden drone voyage.

Crabbers at night off Newport, Oregon. The commercial crabbing season opened on time for the first time in seven years. Credit: NOAA Fisheries
Crabbers at night off Newport, Oregon. The commercial crabbing season opened on time for the first time in seven years. Credit: NOAA Fisheries

Good tidings! Our year-end review of ocean conditions off the Oregon coast ranked 2021 as the second most productive year in the 24 year time series! An early spring transition, strong upwelling, and cold, salty water set the stage for higher than average biomass of cold-water northern copepods (ranked #1 in the time series), and lower than average biomass of warm-water southern copepods. Check out our website to learn more about the ocean ecosystem indicators and the “stoplight table” we use to summarize and rank each indicator across years.

Sampling along the Newport Line after the 2021 fall transition made for clean net samples and deep Secchi readings.
Sampling along the Newport Line after the 2021 fall transition made for clean net samples and deep Secchi readings. Credit: NOAA Fisheries

 

It’s beginning to look a lot like winter along the Newport Hydrographic Line with clean, clear waters and the winter zooplankton community dominating net samples. The Secchi disk was still visible 10-feet beneath the water surface at NH05 on both of our October trips, and over 11-feet beneath the surface at NH15 during our last run in November.    

This post was written by Anna Bolm, who quantifies phytoplankton for the Newport Line team.

 

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Last updated by Northwest Fisheries Science Center on January 26, 2022