There are three basic types of freshwater ecosystems: 1  Lentic: slow moving water, including pools, ponds, and lakes. 2  Lotic: faster moving water, for example streams and rivers. 3  Wetlands: areas where the soil is saturated or inundated for at least part of the time.
Pediatricians earn an average hourly wage of $95.10. Pediatricians earn an average salary of $197,800 per year.
An entry level pediatrician (1-3 years of experience) earns an average salary of $135,569. On the other end, a senior level pediatrician (8+ years of experience) earns an average salary of $259,704.