Development and function of the swimbladder-inner ear-lateral line system in the Atlantic menhaden, Brevoortia tyrannus (Latrobe)*

1982 ◽  
Vol 20 (2) ◽  
pp. 131-142 ◽  
Author(s):  
D. E. Hoss ◽  
J. H. S. Blaxter
Keyword(s):  
Inner Ear ◽  
Lateral Line ◽  
Atlantic Menhaden ◽  
Lateral Line System ◽  
Brevoortia Tyrannus ◽  
Line System ◽  
And Function

The Functional Anatomy and Development of the Swimbladder-Inner Ear-Lateral Line System in Herring and Sprat

1976 ◽  
Vol 56 (2) ◽  
pp. 471-486 ◽  
Author(s):  
Jennifer M. Allen ◽  
J. H. S. Blaxter ◽  
E. J. Denton
Keyword(s):  
Inner Ear ◽  
Lateral Line ◽  
Functional Anatomy ◽  
Clupea Harengus ◽  
Lateral Line System ◽  
Brevoortia Tyrannus ◽  
Line System ◽  
The Pacific ◽  
Pacific Sardine ◽  
A Chain

INTRODUCTIONThe herring Clupea harengus L. and sprat Sprattus sprattus (L.) are physostomatous teleosts with narrow ducts connecting the swimbladder to both the gut and cloaca. With other clupeoids these two species were of great interest to the anatomists of previous generations because of the further tubular connexions between the swimbladder and air-filled otic bullae close to the labyrinth of the inner ear. Together with the Ostariophysi, which have a chain of Weberian ossicles between the swimbladder and the inner ear, the clupeoids were thought to have enhanced hearing compared with many other teleosts as a result of coupling the ear to the swimbladder.Despite such interest in the system the earlier literature is very fragmented, with the descriptions ranging over at least a dozen clupeoid species, and much of the work was done on fairly advanced juvenile or on adult fish. Ridewood (1891) examined the swimbladder-inner ear relationship in adult herring, pilchard Clupea pilchardus, sprat, shad C. alosa, twaite C. finta and anchovy Engraulis encrasicholus; Tracy (1920) made a similar study of the American Atlantic clupeoids – the shad Alosa sapidissima, alewife Pomolobus pseudoharengus, summer herring P. aestivalis, fall herring P. mediocris and menhaden Brevoortia tyrannus and O'Connell (1955) of the Pacific sardine Sardinops caerulea and anchovy Engraulis mordax. Wohlfahrt (1936) considered the total swimbladder-inner ear-lateral line relationship in 100–120 mm pilchards, recognizing the much less obvious connexion between the perilymph and the lateral line through a membrane in the skull. The presence of such a connexion had been suggested earlier by Tracy (1920).

scholarly journals The Inner Ear is Responsible for Detection of Infrasound in the Perch (Perca Fluviatilis)

1992 ◽  
Vol 171 (1) ◽  
pp. 163-172 ◽  
Author(s):  
HANSERIK KARLSEN
Keyword(s):  
Inner Ear ◽  
Lateral Line ◽  
Low Frequency ◽  
Perca Fluviatilis ◽  
Lateral Line System ◽  
Threshold Values ◽  
Line System ◽  
Frequency Detection ◽  
Perch Perca Fluviatilis ◽  
Cardiac Conditioning

In a previous study of infrasound detection in the cod, the inner ear was suggested to be the sensory organ responsible for the responses. However, a possible involvement of the lateral-line system in the observed low-frequency detection could not be ruled out. The infrasound sensitivity was therefore studied in perch (Perca fluviatilis) with normal and blocked lateral-line organs. The experiments were performed using a standing wave acoustic tube and the cardiac conditioning technique. All perch readily responded to infrasound frequencies down to 0.3 Hz with threshold values of approximately 2×10−4 ms−2. These thresholds were not affected by complete blocking of the lateral-line system with Co2+, which suggests that the inner ear is responsible for the observed infrasound detection by the perch.

Ultrastructural effects of cisplatin on the inner ear and lateral line system of zebrafish (Danio rerio) larvae

2011 ◽  
Vol 32 (4) ◽  
pp. 293-299 ◽  
Author(s):  
Luisa Giari ◽  
Bahram Sayyaf Dezfuli ◽  
Laura Astolfi ◽  
Alessandro Martini
Keyword(s):  
Inner Ear ◽  
Lateral Line ◽  
Danio Rerio ◽  
Lateral Line System ◽  
Line System

The mechanical relationships between the clupeid swimbladder, inner ear and lateral line

1976 ◽  
Vol 56 (3) ◽  
pp. 787-807 ◽  
Author(s):  
E. J. Denton ◽  
J. H. S. Blaxter
Keyword(s):  
Inner Ear ◽  
Lateral Line ◽  
Larval Stage ◽  
Clupea Harengus ◽  
Lateral Line System ◽  
Line System

INTRODUCTIONIn earlier papers (Allen, Blaxter & Denton, 1976; Blaxter & Denton, 1976) an account was given of the development and structure of the swimbladder-bulla-lateral line system of the herring Clupea harengus L. and sprat Clupea sprattus (L.) and its function in the larval stage. In this paper we describe experiments on juveniles of these species in which the system is fully developed.

scholarly journals Histone Demethylase PHF8 Is Required for the Development of the Zebrafish Inner Ear and Posterior Lateral Line

2020 ◽  
Vol 8 ◽  
Author(s):  
Jing He ◽  
Zhiwei Zheng ◽  
Xianyang Luo ◽  
Yongjun Hong ◽  
Wenling Su ◽  
...  
Keyword(s):  
Cell Migration ◽  
Inner Ear ◽  
Lateral Line ◽  
Target Genes ◽  
Histone Demethylase ◽  
Otic Vesicle ◽  
Lateral Line System ◽  
Potential Candidate ◽  
Line System ◽  
Posterior Lateral Line

Histone demethylase PHF8 is crucial for multiple developmental processes, and hence, the awareness of its function in developing auditory organs needs to be increased. Using in situ hybridization (ISH) labeling, the mRNA expression of PHF8 in the zebrafish lateral line system and otic vesicle was monitored. The knockdown of PHF8 by morpholino significantly disrupted the development of the posterior lateral line system, which impacted cell migration and decreased the number of lateral line neuromasts. The knockdown of PHF8 also resulted in severe malformation of the semicircular canal and otoliths in terms of size, quantity, and position during the inner ear development. The loss of function of PHF8 also induced a defective differentiation in sensory hair cells in both lateral line neuromasts and the inner ear. ISH analysis of embryos that lacked PHF8 showed alterations in the expression of many target genes of several signaling pathways concerning cell migration and deposition, including the Wnt and FGF pathways. In summary, the current findings established PHF8 as a novel epigenetic element in developing auditory organs, rendering it a potential candidate for hearing loss therapy.

Ontogeny of the head of the Pacific hagfish ( Eptatretus stouti , Myxinoidea): development of the lateral line system

1995 ◽  
Vol 349 (1328) ◽  
pp. 119-134 ◽  
Keyword(s):  
Lateral Line ◽  
Cranial Nerves ◽  
Lateral Line System ◽  
Line System ◽  
The Pacific ◽  
The Family ◽  
Embryonic Origin ◽  
Cranial Ganglia ◽  
And Function ◽  
Epibranchial Placodes

The head of adult hagfishes (jawless craniates, Myxinoidea) of the family Eptatretidae displays a number of skin grooves of uncertain origin. These grooves have been homologized to the neuromast lines of other craniates, and they are innervated by two ganglionated cranial nerves that have been interpreted as lateral line nerves. The grooves do not, however, contain the compound receptors that are typical of a lateral line (i.e. neuromasts or electroreceptors), and both their development and function have remained enigmatic. To elucidate the embryonic origin of the grooves (which should develop from placodes if they are homologues of the lateral line system), embryos of Pacific hagfish were examined by means of threedimensional reconstructions from serial sections. Because of the scarcity of specimens of embryonic hagfishes, only two embryos were reconstructed, but these reconstructions clearly show that a number of placodes and placodal derivatives (i.e. sensory ridges, receptor primordia, and cranial ganglia) occur in the head of embryonic eptatretid hagfishes. Some of these placodes correspond to the lens and epibranchial placodes of other craniates, but there are also three other placodes which represent possible homologues of lateral line placodes. The topology of the placodes in this latter group corresponds to the topology of the grooves of adult hagfishes, and we therefore reach three conclusions: (i) that an embryonic lateral line system is present in hagfishes; (ii) that the grooves of adult hagfishes in all probability derive from lateral line placodes; and (iii) that the presence of lateral line placodes is a primitive character of craniates.

Function of Theswimbladder-Inner Ear-Lateral Line System of Herring in the Young Stages

1976 ◽  
Vol 56 (2) ◽  
pp. 487-502 ◽  
Author(s):  
J. H. S. Blaxter ◽  
E. J. Denton
Keyword(s):  
Hydrostatic Pressure ◽  
Inner Ear ◽  
Body Length ◽  
Lateral Line ◽  
Larval Stage ◽  
Preceding Paper ◽  
Lateral Line System ◽  
Stages Of Development ◽  
Line System ◽  
Lateral Recess

INTRODUCTIONThe preceding paper (Allen, Blaxter & Denton, 1976) describes the development of the swimbladder-inner ear-lateral line system of the herring.In the larval stage of herring the pro-otic bullae start to develop at a body length of about 18 mm. Between 18 and 30 mm the bullae become filled with gas. At 26 mm the lateral recess membrane starts to develop, becoming silvered at about 42 mm. The lateral line develops between 19 and 45 mm. The swimbladder silvers and contains gas from about 38 mm. The adult system is complete at 50–60 mm body length, some four months after hatching.This paper concerns the system in its intermediate stages of development. It examines the problems of how the bullae are filled with gas and how the gas spaces are maintained. It gives evidence on the possible roles of the gas-filled spaces as hydrostatic pressure receptors and as aids to buoyancy and discusses the limitations of the system before it can gain or lose gas to a gas-filled swimbladder.

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