Rheotaxis: Difference between revisions
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|definition=Rheotaxis is the orientation of an organism in response to a current. The velocity threshold for rheotactic behaviour consequently is the velocity at which fish change direction, not randomly but orienting their long axis in parallel with the direction of flow to swim against the current. According to DWA-M 509, depending on the species and stage of development the velocity threshold for rheotactic behaviour is in the range of 0.1 to 0.3 m/s. | |definition=Rheotaxis is the orientation of an organism in response to a current. The velocity threshold for rheotactic behaviour consequently is the velocity at which fish change direction, not randomly but orienting their long axis in parallel with the direction of flow to swim against the current. According to DWA-M 509, depending on the species and stage of development the velocity threshold for rheotactic behaviour is in the range of 0.1 to 0.3 m/s. | ||
|source=[http://vzb.baw.de/publikationen/merkblaetter/1/Guideline_Upstream_Fishways_Version2.pdf Guideline Upstream Fishways on German Federal Waterways (AH FAA), Bundesanstalt für Wasserbau (BAW) und Bundesanstalt für Gewässerkunde (BfG), Version 2.0, 26/06/2015] (retrieved 10.05.2017); | |source=[http://vzb.baw.de/publikationen/merkblaetter/1/Guideline_Upstream_Fishways_Version2.pdf Guideline Upstream Fishways on German Federal Waterways (AH FAA), Bundesanstalt für Wasserbau (BAW) und Bundesanstalt für Gewässerkunde (BfG), Version 2.0, 26/06/2015] (retrieved 10.05.2017); | ||
DWA-M 509: Fischaufstiegsanlagen und fischpassierbare Bauwerke – Gestaltung, Bemessung, Qualitätssicherung (Mai 2014) | translated from "DWA-M 509: Fischaufstiegsanlagen und fischpassierbare Bauwerke – Gestaltung, Bemessung, Qualitätssicherung (Mai 2014)" | ||
|name_de= | |name_de=Rheotaxis | ||
}} | }} | ||
Latest revision as of 15:06, 26 June 2017
Definition
Rheotaxis is the orientation of an organism in response to a current. The velocity threshold for rheotactic behaviour consequently is the velocity at which fish change direction, not randomly but orienting their long axis in parallel with the direction of flow to swim against the current. According to DWA-M 509, depending on the species and stage of development the velocity threshold for rheotactic behaviour is in the range of 0.1 to 0.3 m/s.
Synonyms
Abbreviations
Source
Guideline Upstream Fishways on German Federal Waterways (AH FAA), Bundesanstalt für Wasserbau (BAW) und Bundesanstalt für Gewässerkunde (BfG), Version 2.0, 26/06/2015 (retrieved 10.05.2017); translated from "DWA-M 509: Fischaufstiegsanlagen und fischpassierbare Bauwerke – Gestaltung, Bemessung, Qualitätssicherung (Mai 2014)"