Medullary lateral line units of rudd, Scardinius erythrophthalmus, are sensitive to Kármán vortex streets

Klein, Adrian; Winkelnkemper, Jan; Dylda, Evelyn; Bleckmann, Horst

doi:10.1007/s00359-015-1016-5

Cited by 5 publications

(1 citation statement)

References 48 publications

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“…Similarly, some brainstem neurons are unresponsive to bulk water flow whereas others are flow sensitive (Mogdans & Kröther, 2001). Central lateral-line neurons may even encode the frequency of the vortices that are shed by a cylinder in the flow (Klein et al, 2015;Winkelnkemper et al, 2018). While it is known that ascending lateral-line information reaches the forebrain of fishes (Striedter, 1991), there are hardly any data on forebrain responses to hydrodynamic stimuli.…”

Section: Neurobiology Of the Lateral-line Systemmentioning

confidence: 99%

Sensory ecology of the fish lateral‐line system: Morphological and physiological adaptations for the perception of hydrodynamic stimuli

Mogdans

2019

Journal of Fish Biology

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Fishes are able to detect and perceive the hydrodynamic and physical environment they inhabit and process this sensory information to guide the resultant behaviour through their mechanosensory lateral‐line system. This sensory system consists of up to several thousand neuromasts distributed across the entire body of the animal. Using the lateral‐line system, fishes perceive water movements of both biotic and abiotic origin. The anatomy of the lateral‐line system varies greatly between and within species. It is still a matter of debate as to how different lateral‐line anatomies reflect adaptations to the hydrodynamic conditions to which fishes are exposed. While there are many accounts of lateral‐line system adaptations for the detection of hydrodynamic signals in distinct behavioural contexts and environments for specific fish species, there is only limited knowledge on how the environment influences intra and interspecific variations in lateral‐line morphology. Fishes live in a wide range of habitats with highly diverse hydrodynamic conditions, from pools and lakes and slowly moving deep‐sea currents to turbulent and fast running rivers and rough coastal surf regions. Perhaps surprisingly, detailed characterisations of the hydrodynamic properties of natural water bodies are rare. In particular, little is known about the spatio‐temporal patterns of the small‐scale water motions that are most relevant for many fish behaviours, making it difficult to relate environmental stimuli to sensory system morphology and function. Humans use bodies of water extensively for recreational, industrial and domestic purposes and in doing so often alter the aquatic environment, such as through the release of toxicants, the blocking of rivers by dams and acoustic noise emerging from boats and construction sites. Although the effects of anthropogenic interferences are often not well understood or quantified, it seems obvious that they change not only water quality and appearance but also, they alter hydrodynamic conditions and thus the types of hydrodynamic stimuli acting on fishes. To date, little is known about how anthropogenic influences on the aquatic environment affect the morphology and function of sensory systems in general and the lateral‐line system in particular. This review starts out by briefly describing naturally occurring hydrodynamic stimuli and the morphology and neurobiology of the fish lateral‐line system. In the main part, adaptations of the fish lateral‐line system for the detection and analysis of water movements during various behaviours are presented. Finally, anthropogenic influences on the aquatic environment and potential effects on the fish lateral‐line system are discussed.

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Section: Neurobiology Of the Lateral-line Systemmentioning

confidence: 99%

Sensory ecology of the fish lateral‐line system: Morphological and physiological adaptations for the perception of hydrodynamic stimuli

Mogdans

2019

Journal of Fish Biology

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Responses of medullary lateral line units of the rudd, Scardinius erythrophthalmus, and the nase, Chondrostoma nasus, to vortex streets

2017

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Fish use their mechanosensory lateral line amongst others for the detection of vortices shed by an upstream object and/or for the detection of vortices caused by the tail fin movements of another fish. Thus, vortices are one type of hydrodynamic stimuli to which fish are exposed in their natural environment. We investigated the responses of medullary lateral line units of common rudd, Scardinius erythrophthalmus, and common nase, Chondrostoma nasus (Cyprinidae), to water flow (9.5-13.3 cm) that contained vortices (a Kármán vortex street) shed by an upstream cylinder (diameter 2 cm). The distance between the cylinder and the tip of the fish's snout varied between 8 and 24 cm. 21 out of 42 units (S. erythrophthalmus), respectively, 9 out of 39 units (Chondrostoma nasus) responded to the vortices shed by the cylinder. Up to a cylinder distance of 24 cm, interburst intervals revealed the vortex shedding frequency, i.e., burst frequency was similar to or identical with the vortex shedding frequency.

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Representation of bulk water flow in the goldfish (Carassius auratus) midbrain

Van Susteren,

Mogdans

2024

J Comp Physiol A

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Medullary lateral line units of rudd, Scardinius erythrophthalmus, are sensitive to Kármán vortex streets

Cited by 5 publications

References 48 publications

Sensory ecology of the fish lateral‐line system: Morphological and physiological adaptations for the perception of hydrodynamic stimuli

Sensory ecology of the fish lateral‐line system: Morphological and physiological adaptations for the perception of hydrodynamic stimuli

Responses of medullary lateral line units of the rudd, Scardinius erythrophthalmus, and the nase, Chondrostoma nasus, to vortex streets

Representation of bulk water flow in the goldfish (Carassius auratus) midbrain

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