Lentic ecosystem (also called the lacustrine ecosystem or the still water ecosystem) and lotic ecosystem (also called the riverine ecosystem) are two types of water ecosystems, the first dealing with still water ecosystems and the second dealing with flowing water ecosystems. Together, they are the two ecosystems that make up the study of freshwater ecology, also known as aquatic ecology. A lentic ecosystem entails a body of standing water, ranging from ditches, seeps, ponds, seasonal pools, basin marshes and lakes. Deeper waters, such as lakes, may have layers of ecosystems, influenced by light. Ponds, due to their having more light penetration, are able to support a diverse range of water plants. A lotic ecosystem can be any kind of moving water, such as a run, creek, brook, river, spring, channel or stream.
So the correct option is 'lentic, lotic'.