Technical Report

 

Yaquina Bay zooplankton survey I Public Deposited

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https://ir.library.oregonstate.edu/concern/technical_reports/8336h3366

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  • In 1960 a program of monitoring the zooplankton populations of Yaquina Bay, Oregon, was begun. The frequency of sampling was maintained at close to weekly intervals after 1 January 1963, usually at five stations. Abundances of all the species found in the bay of both meroplankton and holoplankton have been estimated in the samples through August of 1970. Temperature, salinity, and oxygen concentration were measured at the water surface and near the bottom in conjunction with each sample. This huge body of data contains information about the seasonal cycles of bay species and species from the nearby ocean. It permits study of year-to-year variation of abundance and seasonal cycle over 7 1/2 years, and it aids the study of distributional patterns in the bay. This report is a first presentation in graphical form of data from stations at navigational buoys 15 and 21 (Fig. 1), together with a listing of the most evident conclusions. These stations were chosen for earliest consideration because the time sequence of samples is far more complete than at the other stations since they are closest to the boat mooring. Only the dominant, holoplanktonic forms are considered in the present report. These are all copepods or cladocerans.
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