IVES ISLAND CHUM REDD COUNTS, 2000 AND ESTIMATED EMERGENCE DATES, 2001.
spawning # NEW REDDS estimated
date   GPS   cumulative % of total emergence  
       
6-Nov 15 15 12%   28-Jan
8-Nov 10 25 20%   1-Feb
13-Nov 13 38 30%   9-Feb
17-Nov 27 65 52%   15-Feb
22-Nov 7 72 57%   23-Feb
27-Nov 4 76 60%   2-Mar
1-Dec 40 116 92%   7-Mar
4-Dec 5 121 96%   11-Mar
8-Dec 0 121 96%   16-Mar
18-Dec   5   126 100%   28-Mar
126 126
The dewatered redd found on Feb. 20 was marked as a new redd on November 17th.
Estimated emergence for this redd based on 800 TU's is between January 21st (using egg pocket temperatures),
and March 8th using river water temperature plus 3 degrees Celcius. 
Emergence at this redd, based on actual field observations, is estimated to have occured around February 15th or after 1000 TU's
using estimated egg pocket temperatures.
Estimated emergence dates for all chum redds were calibrated to reflect development through 1000 TU's .