CSS 67-19 0900 - O2 taken (Winkler Method) 5.1 ppm 0950 hrs. Light- i = 9.8 light taken after dipnetting but approx. same as when we arrived. Cloudy & sprinkling Sample taken by dipnetting is fairly representative of those first observed on shelf. Dip netting w/ long handled dipnets 1/4 mile. 0955 - air temp. = 10.4°C water temp. = 33.2 at USGS water level measured Water from deeper areas is warmer - 33.9-34 over ledge Cage - (note - one male injured last time) Observed 5. much chasing during period when we watched. In cage: ♂ = 18, 19.5, 20.5, 21.5 mm ♀ = 21.0 mm Sample from shelf - Some preserved - these are included in recorded measurements. Juveniles appear yellow-green. Some iridescent copper.