Location
Groningen, The Netherlands
Event Website
http://fishpassage.umass.edu/
Start Date
24-6-2015 4:45 PM
End Date
24-6-2015 5:00 PM
Description
Abstract:
Fish use the mechanosensory lateral line and the acoustic system for the processing of hydrodynamic information. With their lateral line fish perceive the amplitude, direction and frequency content of water motions relative to their body and tail fin surface as well as local pressure gradients across their head and trunk. With the acoustic system fish detect the particle displacement component and the pressure amplitude of a sound wave. Both, the lateral line and acoustic system, play an important role in many fish behaviors, including schooling, predator avoidance, intraspecific communication and prey detection. With the acoustic system fish not only can discriminate multiple sound sources but in addition can determine the direction and distance to these sources. Rheophilic fish even use lateral line (and acoustic?) information to save energy while swimming in turbulent flow. The smallest sensory unit of the lateral line is the neuromast. The lateral line neuromasts occur freestanding on the surface of a fish or they are embedded in lateral line canals. Inner ear receptors relevant for the processing of sound information are the hair cells of the utricle, sacculus and lagena. Hydrodynamic stimuli are received and transduced into neuronal signals by the lateral line neuromasts and the inner ear receptors. Lateral line and acoustic information is conveyed by afferent nerve fibres to the fish’s brain and processed by higher order neurons in distinct nuclei. In my talk I will introduce the peripheral morphology of the lateral line and acoustic system of fish, describe behavioral and physiological work, thereby focusing on recent studies that have investigated how fish behave in unsteady flow, what kind of sensory information is provided by the flow and how fish use and process this information.
Session B9: How Fish Use and Process Flow Information
Groningen, The Netherlands
Abstract:
Fish use the mechanosensory lateral line and the acoustic system for the processing of hydrodynamic information. With their lateral line fish perceive the amplitude, direction and frequency content of water motions relative to their body and tail fin surface as well as local pressure gradients across their head and trunk. With the acoustic system fish detect the particle displacement component and the pressure amplitude of a sound wave. Both, the lateral line and acoustic system, play an important role in many fish behaviors, including schooling, predator avoidance, intraspecific communication and prey detection. With the acoustic system fish not only can discriminate multiple sound sources but in addition can determine the direction and distance to these sources. Rheophilic fish even use lateral line (and acoustic?) information to save energy while swimming in turbulent flow. The smallest sensory unit of the lateral line is the neuromast. The lateral line neuromasts occur freestanding on the surface of a fish or they are embedded in lateral line canals. Inner ear receptors relevant for the processing of sound information are the hair cells of the utricle, sacculus and lagena. Hydrodynamic stimuli are received and transduced into neuronal signals by the lateral line neuromasts and the inner ear receptors. Lateral line and acoustic information is conveyed by afferent nerve fibres to the fish’s brain and processed by higher order neurons in distinct nuclei. In my talk I will introduce the peripheral morphology of the lateral line and acoustic system of fish, describe behavioral and physiological work, thereby focusing on recent studies that have investigated how fish behave in unsteady flow, what kind of sensory information is provided by the flow and how fish use and process this information.
https://scholarworks.umass.edu/fishpassage_conference/2015/June24/13
Comments
Presenting Author Bio: Wissenschaftliche Laufbahn 1978-1985 Studium der Biologie (Diplom) an der Eberhard-Karls-Universität Tübingen 1985 Diplom im Fach Biologie 1985-1989 Promotion im Fach Biologie an der Eberhard-Karls-Universität Tübingen 1987- 1989 Parallel zur Promotion: Kollegiat im Graduiertenkolleg Neurobiologie an der Eberhard-Karls-Universität in Tübingen 1989-1993 Postdoc am Department Neurobiology an der Stanford University 1989-1991 Hermann-von-Helmholtz Stipendium für Neurobiologen durch das Bundesministerium für Bildung, Wissenschaft, Forschung und Technologie (BMFT) 1993-1994 Wiss. Mitarbeiter am Institut für Zoologie der Technischen Universität Darmstadt 1994-2000 Wiss. Mitarbeiter am Institut für Zoologie der Rheinischen Friedrich-Wilhelms-Universität Bonn 1996 Gastwissenschaftler am Parmly Hearing Institute an der Loyola University in Chicago 1998 Gastwissenschaftler am Department of Biology an der University of Viginia Charlottesville 1998 Habilitation im Fach Zoologie an der Mathematisch- Naturwissenschaftlichen Fakultät der Rheinischen Friedrich-Wilhelms-Universität Bonn 2000-2002 Vertretung einer C3- Professur für Neuroethologie am Institut für Zoologie der Rheinischen Friedrich- Wilhelms-Universität Bonn seit 2002 Wiss. Mitarbeiter am Institut für Zoologie der Rheinischen Friedrich-Wilhelms-Universität Bonn.