Table of Contents

• Coverage
• Dataset Description
  • Methods & Sampling
  • Data Processing Description
• Data Files
• Parameters
• Instruments
• Deployments
• Project Information
• Funding

Physical data (sal, temp, wind, wave height) measured at the Oregon Institute of Marine Biology (OIMB) pier during 2014-2016.

The OIMB pier is located on the Oregon Coast, Coos Bay entrance (43 20.978'N, 124 19.795'W).

Methodology:
Daily samples of oceanic water were collected approx. 30 minutes before high tide (early morning to late afternoon) with an electric (220V) diaphragm pump (American Machine Self Priming Pump, Model 335E-K6, 3" diameter with a 2hp motor). Salinity, water temperature, and fluorescence were measured for water in the daily pier samples. Tide height was assumed from predictions of Mr Tides (url: http://www.mrtides.com/; site: Coos Bay entrance, Oregon); Wind stress and wave height were calculated from NOAA buoy Station 46015 (off Port Orford, Oregon).

Sampling dates:
2016: Data are reported from 1/4/2016 to 3/18/2016 (75 days). 
2015: Data are reported from 1/6/2015 to 3/19/2015 (73 days).
2014: Data are reported from 1/1/2014 to 3/20/2014 (79 days).

Note: The 2014 and 2015 data report chlorophyll-a in milligrams per cubic meter (mg/m3). The 2016 data reports fluorescence in amps (AC current output).

BCO-DMO Processing:
-modified parameter names to conform with BCO-DMO naming conventions;
-re-formatted date to yyyy-mm-dd;
-added lat/lon columns containing pier location (from metadata form);
-replaced blanks (missing data) with 'nd';
-25 April 2017: updated dataset to include data from 2014 and 2015.

The study will address four questions concerning invertebrate spawning on the US West Coast: 1) Which nearshore benthic invertebrates spawn during winter? 2) What conditions are associated with spawning events? (Preliminary data lead the PIs to predict that most spawning will occur during periods of large waves and coastal downwelling.) 3) What is the pattern of dispersal of these winter-spawned larvae in the coastal ocean? 4) How do variations in ocean conditions during pelagic development affect delivery of larvae to the shore?

Water will be sampled daily from the seawater intake for the Oregon Institute of Marine Biology marine laboratory in Coos Bay, OR. Water is pumped at high tide when the intake samples coastal ocean water. Early larval stages will be identified by genetic barcoding and a visual ID key will be developed from individuals raised in the lab. Time series analysis will be used to test for the effects of oceanographic parameters (e.g., temperature, salinity, Chl-a, wind stress, and wave data) on spawning events indicated by the sudden appearance of zygotes or embryos. Following a spawning event, oceanographic cruises in the coastal ocean will follow the dispersal and pelagic development of the larvae and relate their distribution to coastal hydrodynamics. Using daily samples from the seawater system and settlement collectors at intertidal sample sites, the PIs will monitor the abundance of late stage larvae in the near-shore and settlement in the intertidal zone. These time series will be compared to hydrographic parameters to identify conditions favoring the maintenance of larvae in the waters adjacent to the coast and the delivery of larvae to the shore.