Distribution and innervation of lateral line organs in the channel catfish

Northcutt, R. Glenn; Holmes, Preston H.; Albert, James S.

doi:10.1002/(sici)1096-9861(20000612)421:4<570::aid-cne7>3.3.co;2-y

Cited by 18 publications

(28 citation statements)

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“…1b) was also depigmented in Fish #1. This vertical row is one of the four groups that comprise the superficial neuromasts of the trunk and is part of the lateral line canal (Northcutt, Holmes & Albert 2000). Focal skin depigmentation was also present on the head (Fig.…”

Section: Resultsmentioning

confidence: 99%

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Lateral line depigmentation (LLD) in channel catfish, Ictalurus punctatus (Rafinesque)

Corrales

Ullal

Noga

2009

Journal of Fish Diseases

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Head and lateral line erosion (HLLE) is a chronic dermatopathy affecting a number of fish that presents as depigmented skin along the lateral line system of the trunk and head. We present microbiological, immunological and histopathological features of this lesion in channel catfish, Ictalurus punctatus (Rafinesque), that developed after exposure to a chronic nutritional stress. Depigmention was limited to skin that was adjacent to the lateral line. The epidermis of affected fish was thin and reduced to a one-cell-thick layer over the lateral line. Melanocytes were depleted at the dermo-epidermal junction and formed aggregates in the epidermis. Innate immunity was weaker in affected fish than that previously measured in well-fed channel catfish. Because the pathology and apparent aetiology of HLLE described in various fish species are highly variable, HLLE appears to be a clinical sign, rather than a disease or syndrome. Thus, we propose that this clinical sign be referred to as lateral line depigmentation (LLD), because this description more accurately encompasses all cases of this presentation reported in fish. As nutritional requirements of channel catfish and lateral line neuroanatomy are well-known, the ability to reproducibly induce LLD in this species could provide a useful model for understanding its pathogenesis.

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Section: Resultsmentioning

confidence: 99%

“…Electroreceptors, which are also solitary, detect electric fields, allowing intraspecies and interspecies communication. Although electroreceptors disappeared with the evolution of most teleosts, they later re-appeared in channel catfish (Northcutt et al 2000).…”

Section: Discussionmentioning

confidence: 99%

Lateral line depigmentation (LLD) in channel catfish, Ictalurus punctatus (Rafinesque)

Corrales

Ullal

Noga

2009

Journal of Fish Diseases

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“…14,15 While relatively little is known about immunity in fish skin, recent studies have established intriguing similarities between the skin-associated lymphoid tissue (SALT) and that of the gut. 16 …”

Section: Gillmentioning

confidence: 99%

Physiology and immunology of mucosal barriers in catfish (Ictalurus spp.)

et al. 2015

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The mucosal barriers of catfish (Ictalurus spp) constitute the first line of defense against pathogen invasion while simultaneously carrying out a diverse array of other critical physiological processes, includ\ing nutrient adsorption, osmoregulation, waste excretion, and environmental sensing. Catfish depend more heavily on mucosal barriers than their terrestrial counterparts as they are continuously interacting with the aquatic microbiota. Our understanding of these barriers, while growing, is still limited relative to that of mammalian model systems. Nevertheless, a combination of molecular and cellular studies in catfish over the last few decades, and particularly within the last few years, has helped to elucidate many of the primary actors and pathways critical to their mucosal health. Here we describe aspects of innate and adaptive immune responses in the primary mucosal tissues (skin, gill, and intestine) of catfish, focusing on mucus-driven responses, pathogen recognition, soluble mediators, and immunoglobulin and T-cell derived immunity. Modulation of mucosal barriers will be critical moving forward for crafting better diets, improving vaccine delivery, enhancing water quality, and ensuring sustainable production practices in catfish.

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“…The distinct separation of the recurrent ganglion from the ordinal ganglion is also shown in another catfish, Silurus asotus L. 1758 (Kiyohara & Kitoh, 1994), although a separate description of the two parts is not fully shown in A. nebulosus, A. natalis (Finger, 1976) or I . punctatus (Northcutt et al ., 2000). The separation of the two subdivisions of geniculate ganglion suggests that a somatotopical relationship is present between the head and trunk-tail regions.…”

Section: R E L At I O N B E T W E E N T H E O R D I Na L a N D R E C mentioning

confidence: 99%

Recurrent facial taste neurons of sea catfish Plotosusjaponicus: morphology and organization in the ganglion

Denil

Yamashita

Kirino

et al. 2013

Journal of Fish Biology

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This study investigated the morphology of the recurrent facial taste neurons and their organization in the recurrent ganglion of the sea catfish Plotosus japonicus. The recurrent ganglion is independent of the anterior ganglion, which consists of trigeminal, facial and anterior lateral line neurons that send peripheral fibres to the head region. The recurrent taste neurons are round or oval and bipolar, with thick peripheral and thin central fibres, and completely wrapped by membranous layers of satellite cells. Two peripheral nerve branches coursing to the trunk or pectoral fin originate from the recurrent ganglion. The results presented here show that the trunk and pectoral-fin neurons are independently distributed to form various sizes of groups, and the groups are intermingled throughout the ganglion. No distinct topographical relationship of the two nerve branches occurs in the ganglion. Centrally, the trunk and pectoral-fin branches project somatotopically in the anterolateral and intermediate medial regions of the trunk tail lobule of the facial lobe, respectively.

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Distribution and innervation of lateral line organs in the channel catfish

Cited by 18 publications

References 0 publications

Lateral line depigmentation (LLD) in channel catfish, Ictalurus punctatus (Rafinesque)

Lateral line depigmentation (LLD) in channel catfish, Ictalurus punctatus (Rafinesque)

Physiology and immunology of mucosal barriers in catfish (Ictalurus spp.)

Recurrent facial taste neurons of sea catfish Plotosusjaponicus: morphology and organization in the ganglion

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