from The American Heritage® Dictionary of the English Language, 5th Edition.
- adjective Of, relating to, or living in moving water.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective of a river having swift water; flowing.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adjective of or relating to or living in actively moving water
from The American Heritage® Dictionary of the English Language, 4th Edition
from Wiktionary, Creative Commons Attribution/Share-Alike License
Two major categories of freshwater ecosystems can be defined as lotic (flowing water) and lentic (standing water), but large variation in size, characteristics, and location is exhibited within each.
Rivers and streams are characterized by flowing waters and are called lotic systems (as opposed to lentic systems, such as lakes).
In this sense the term "river" includes all kinds of watercourses, from the tiniest of brooks to the largest of rivers (the term "streams are characterized by flowing waters and are called lotic systems (as opposed to lentic systems, such as Biodiversity Institute of Ontario)
Loss of permafrost increases the potential for many northern shallow lotic systems to dry out from a warmer temperature regime.
The dynamics of many of the lotic (river) and lentic (lake) environments in the Arctic are related to permafrost, and freezing can reduce or even halt the flow of rivers.
For the purposes of this assessment, lotic ecosystems include rivers, streams, deltas, and estuaries, where flow regimes are a dominant hydrologic feature shaping their ecology.
Still smaller types of lotic systems include medium to small rivers that arise wholly within the Arctic.
The greatest ice-related ecological impacts of climate change on arctic lotic systems are likely to result from changes in breakup timing and intensity.
Nutrient availability often determines food availability and lotic productivity, which are believed to be major controlling factors in riverine fish production.
Similar to the situation for arctic lotic systems, an enhanced supply of nutrients and organic matter from the more biologically productive contributing basins is likely to boost primary productivity .
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