Summer-run Skamania steelhead return to area streams from July (as early as mid-June) through the winter months and spawn from mid-February to March; winter-run steelhead return beginning in mid-late October, with the bulk of the return in February and March. ASTC Science World Society is a registered charity 10673 4809 RR0001. var m = "Updated: " + document.lastModified; But unlike that ice, the bottom . These generally reproduce quickly and have relatively short lifespans. Indiana has 43 miles of Lake Michigan shoreline and 224 square miles of Lake Michigan water. A complete list of all programs within the Department of Environment, Great Lakes, and Energy (EGLE), Resources and information on utilizing RRD's data exchange and the Inventory of Facilities. Casting into warmwater plumes in early spring when the lake temperature is still in the high 30s or low 40s has had some success. Another municipal ramp is located upstream on Trail Creek (Trail Creek Marina). Each is an important part of the food chain. These invertebrates are quite diverse; some are microscopic whereas others are lobster-sized and are considered an absolute delicacy. Accessibility Even highly polluted freshwater systems may have thriving crustacean populations. Answer questions about the interdependence of herbivores, carnivores and producers as members of a food chain. (.pdf),