Keywords: Conducted Oregon Spotted Frog Egg Mass Survey.jpg en Oregon Spotted Frog Surveys Biologists Anderson and Hallock conducted Oregon spotted frog egg mass surveys this week at Trout Lake Habitat conditions this spring have been very favorable with above normal water levels in traditional breeding locations Annual egg mass counts provide information on population health and habitat condition This year ™s surveys are not yet complete but preliminary results indicate a good season for egg mass production Biologists Anderson and Hallock conducted Oregon spotted frog egg mass surveys this week at Trout Lake Wasington Department of Fish Wildlife http //wdfw wa gov/about/regions/region5/wildlife_reports/2011/apr11_2011a jpg http //wdfw wa gov/about/regions/region5/wildlife_reports/ Author 2011-04-11 PD-USGov Trout Lake lake Swamps in the United States Rana pretiosa Rana spawn |