Anatomy of the mechanosensory lateral line canal system and electrosensory ampullae of L orenzini in two species of sawshark (fam. P ristiophoridae)

2020 ◽  
Author(s):  
Barbara E. Wueringer ◽  
Marit Winther‐Janson ◽  
Vincent Raoult ◽  
Tristan L. Guttridge
Keyword(s):  
Lateral Line ◽  
Canal System ◽  
Lateral Line Canal

scholarly journals Development of the lateral line canal system through a bone remodeling process in zebrafish

2014 ◽  
Vol 392 (1) ◽  
pp. 1-14 ◽  
Author(s):  
Hironori Wada ◽  
Miki Iwasaki ◽  
Koichi Kawakami
Keyword(s):  
Bone Remodeling ◽  
Lateral Line ◽  
Canal System ◽  
Lateral Line Canal

On The Fine Structure of Lateral-Line Canal Organs of the Herring (Clupea Harengus)

1985 ◽  
Vol 65 (3) ◽  
pp. 751-758 ◽  
Author(s):  
J. Mørup Jørgensen
Keyword(s):  
Lateral Line ◽  
Moving Objects ◽  
Sea Water ◽  
Clupea Harengus ◽  
Lateral Line System ◽  
Pressure Waves ◽  
Canal System ◽  
Line System ◽  
Lateral Line Canal ◽  
Lower Vertebrates

The lateral-line system of water-living lower vertebrates is provided with mechanoreceptors enabling the animals to detect water displacements, either caused by moving objects such as prey, predators or neighbours in a school or by deformations of pressure waves from the swimming animal caused by other objects. Cyclostomes, some fish and water–living amphibians have their lateral-line organs situated superficially in the epidermis as free neuromasts, while most fish besides these neuromasts possess a canal system in the dermis. Ordinarily the lateral line canal system consists of a few canals on the sides of the head and a trunk canal. In herring, however, the canal system is confined to the head and opercule. It forms a very richly branched system with numerous pores which connect the canal fluid with the surrounding sea water.

Cephalic lateral line canal system of the golden venus chub, Hemigrammocypris rasborella (Teleostei: Cypriniformes)

2011 ◽  
Vol 58 (2) ◽  
pp. 175-179 ◽  
Author(s):  
Hiroaki Takeuchi ◽  
Kanako Tokuda ◽  
Naoyuki Kanagawa ◽  
Kazumi Hosoya
Keyword(s):  
Lateral Line ◽  
Canal System ◽  
Lateral Line Canal

Mechanical factors in the excitation of clupeid lateral lines

1983 ◽  
Vol 218 (1210) ◽  
pp. 1-26 ◽  
Keyword(s):  
Lateral Line ◽  
Sea Water ◽  
Capillary Tube ◽  
Rigid Bodies ◽  
Clupea Harengus ◽  
Lateral Line System ◽  
Canal System ◽  
Cross Sectional ◽  
Line System ◽  
Lateral Line Canal

The excitation of lateral line sense organs (neuromasts) might be expected to depend on differences of movement between the liquid inside the main lateral line canals (the ones that contain the neuromasts) and the walls of these canals. We have investigated this net movement in relation to events in the water around fish. Liquid displacements inside a given part of a main lateral line canal of the sprat ( Sprattus sprattus (L.)) are, at any one frequency, linearly related to those in the medium (sea water) adjacent to this part. For the parts of the canal system studied, and below about 80 Hz, the ratio of displacement inside the canal to that in the medium falls with frequency, i. e. the displacement inside the canal follows the velocity in the medium. Sea water displacements in a given length of a main lateral line canal system are proportional to the component of the external velocity that is parallel to the canal. For this component the ratio of displacements inside and outside the lateral line approaches unity at around 80 Hz. The behaviour of a lateral line canal is close to that of a straight capillary tube of roughly the same cross sectional area. Displacements in the canal are advanced in phase relative to those in the external medium and these phase advances are a little larger than those found in capillaries. There is very little mechanical coupling between neighbouring parts of the main canals. Since the cupulae of the neuromasts of the sprat lateral line are driven by frictional forces, the stimulus to a neuromast will (below 80 Hz) be proportional to the acceleration of the medium adjacent to the lateral line. Sprats and fish of three other species ( Clupea harengus L., Hyperoplus lanceolatus (Lesauvage), and Trachurus trachurus (L.) have been shown, when suspended in sound fields emitted by pulsating and vibrating sources, to behave longitudinally as rigid bodies. Under many conditions it proved possible to calculate the longitudinal movements of fish from the differences of pressure between snout and tail. From these two kinds of result we have calculated for a variety of positions in fields around vibrating bodies the motion of a fish and the motion of the liquid in the canals and so estimated the effective stimulus to different parts of the lateral line system. When such calculations were made for a vibrating source of the dimensions of a sprat tail, and for distances comparable to the inter-fish distance within a school, we found that the patterns of net velocities at different neuromasts change dramatically with the position or angle of the fish relative to the source. We estimate that the sprat lateral line system excited in this way could detect a neighbouring fish in a school at distances of up to a few fish lengths. The sprat lateral line sensory system is well suited to giving sensory information in such activities as schooling.

scholarly journals Head width influences flow sensing by the lateral line canal system in fishes

2018 ◽  
Vol 221 (21) ◽  
pp. jeb180877 ◽  
Author(s):  
Yuzo R. Yanagitsuru ◽  
Otar Akanyeti ◽  
James C. Liao
Keyword(s):  
Lateral Line ◽  
Head Width ◽  
Canal System ◽  
Lateral Line Canal ◽  
Flow Sensing

scholarly journals The laterophysic connection in chaetodontid butterflyfish: morphological variation and speculations on sensory function

2000 ◽  
Vol 355 (1401) ◽  
pp. 1125-1129 ◽  
Author(s):  
Jacqueline F. Webb ◽  
W. Leo Smith
Keyword(s):  
Sexual Dimorphism ◽  
Inner Ear ◽  
Lateral Line ◽  
Morphological Variation ◽  
Sensory Function ◽  
Pressure Sensitivity ◽  
Swim Bladder ◽  
Canal System ◽  
Lateral Line Canal ◽  
Diverse Species

The laterophysic connection is a novel specialization in chaetodontid butterflyfish, in which paired diverticula of the swim–bladder (‘horns’) extend anteriorly and approach or directly contact a medial fossa in the lateral line canal contained within the supracleithrum. This study examined the morphology of the laterophysic connection in eight ecologically diverse species belonging to five subgenera within Chaetodon . Two types of laterophysic connections, indirect and direct, were found among Chaetodon species. Intraspecific variation (including sexual dimorphism) in the morphology of the laterophysic connection was not found. The type of laterophysic connection is not correlated with ecological characteristics among Chaetodon species, but appears to be correlated with subgeneric affinities of Chaetodon species. The presence of swim–bladder horns probably increases pressure sensitivity to the inner ear. It is suggested that the presence of a direct laterophysic connection, and possibly an indirect laterophysic connection, imparts pressure sensitivity to the lateral line canal system as well.

scholarly journals Development of a Flexible Artificial Lateral Line Canal System for Hydrodynamic Pressure Detection

Sensors ◽  
2017 ◽  
Vol 17 (6) ◽  
pp. 1220 ◽  
Author(s):  
Yonggang Jiang ◽  
Zhiqiang Ma ◽  
Jianchao Fu ◽  
Deyuan Zhang
Keyword(s):  
Lateral Line ◽  
Hydrodynamic Pressure ◽  
Canal System ◽  
Lateral Line Canal
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