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From Latin lotus, past participle of lavare (to wash).



lotic (comparative more lotic, superlative most lotic)

  1. Characterised by flowing water; swiftly flowing; pertaining to or concerned with flowing rivers, streams, etc.
    • 1981, M. G. Tesmer, D. R. Wefring, Annual Macroinvertebrate Sampling - A Low-cost Tool for Ecological Assessment of Effluent Impact, J. M. Bates, C. I. Weber (editors), Ecological Assessments of Effluent Impacts on Communities of Indigenous Aquatic Organisms, page 268,
      This particular area is subject to the transition from a more lotic environment to the lentic environment existing in the pool area.
    • 2000, Robert T. Dillon, The Ecology of Freshwater Molluscs, page 26,
      Turning now to more lotic environments, Norelius (1967) and Bronmark and Malmqvist (1982) have studied populations of Anodonta anita and Unio pictorum inhabiting Swedish lake outlets.
    • 2003, J. Kolding, B. Musando, N. Songore, Inshore Fishing and Fish Population Changes in Lake Kariba, Eyolf Jul-Larsen (editor), Management, co-management or no management?: major dilemmas in southern African freshwater fisheries, 2: Case studies, page 71,
      The rheophilic species, Chiloglanis neumanii, Opsaridium zambezense (and possibly also Leptoglanis rotundiceps) are now confined to the tributaries or the two more lotic western basins (Balon, 1974a, 1974b).
    • 2009, Klement Tockner, Urs Uehlinger, Christopher T. Robinson, Rivers of Europe, unnumbered page,
      Among the main tributaries of the French Rhône River (Arve, Guiers, Ain, Saône, Isère, Eyrieux, Drôme, Ardeche, Durance, Gard), Berahou (1993) considered the lower Ain as one of the most lotic.
  2. (biology) Living in flowing water; adapted to life in flowing water.
    • 1975, J. G. Needham, A Manual of the Dragonflies of North America, page 94,
      The stream-dwelling species are among the most lotic of anisopterous dragonflies.
    • 1986, Ronald Rossmann (editor), Impact of the Donald C. Cook Nuclear Plant, page 244,
      Waugoshance point is an ideal consolidated substrate, wave zone habitat, and this was evidenced by the more lotic benthic fauna found there.
    • 2006, Timothy D. Schowalter, Insect Ecology: An Ecosystem Approach, page 43,
      Very few lotic insects are strong swimmers, probably because of the energy expenditure required to swim against a current.

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