Mucous cell responses in gill and skin of brown trout Salmo trutta fario in acidic, aluminium-containing stream water

Ledy, K; Giambérini, Laure; Pihan, Jean-Claude

doi:10.3354/dao056235

Cited by 55 publications

(23 citation statements)

References 20 publications

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“…Increased secretion of mucus in skin and gills was not seen on acid-exposed fish in the current study, even though this is a commonly reported initial response to exposure (Zuchelkowski et al 1986, Ingersoll et al 1990b, Berntssen et al 1997, Ledy et al 2003. Alcian blue and PAS-stained sections of skin revealed relatively fewer epidermal mucous cells in the acidexposed fish compared with normal fish, suggesting that these cells had exhausted their secretions in the several days since the acidification event.…”

Section: Discussioncontrasting

confidence: 53%

Dermatitis, branchitis and mortality in empire gudgeon Hypseleotris compressa exposed naturally to runoff from acid sulfate soils

Callinan¹,

Sammut²,

Fraser³

2005

Dis. Aquat. Org.

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Severe dermatitis and branchitis are described in a wild population of empire gudgeon Hypseleotris compressa, an Australian eleotrid, exposed naturally to runoff from acid sulfate soils (ASS) in a drained estuarine embayment in eastern Australia. After at least 2 d exposure to pH < 4, and up to 7 d exposure to pH < 6, approximately 50% of the fish sampled had moderate to severe diffuse epidermal hyperplasia, usually at scale margins, and scattered areas of moderate to severe, focal to locally extensive, subacute, necrotising dermatitis. Saprolegnia spp. had invaded epidermis in some inflamed areas. In gills, there was moderate to severe hyperplasia and necrosis of secondary lamellar epithelium, with fusion of adjacent secondary lamellae. Inorganic monomeric aluminium and calcium concentrations in water at the site during the event were 27.7 and 16.6 mg l -1 , respectively. Large numbers of empire gudgeons at the study site had died after at least 8 d exposure to pH < 4, and up to 13 d exposure to pH < 6. These findings provide clear evidence that acidification of estuarine systems by runoff from ASS has deleterious effects on aquatic biota. Furthermore, study findings suggest a mechanism whereby lesions of epizootic ulcerative syndrome (EUS) may be initiated in estuarine fishes by a combination of sublethal exposure to ASS runoff and Aphanomyces invadans infection, a suggestion consistent with the geographic and temporal distribution of EUS outbreaks in Australian estuaries.KEY WORDS: Dermatitis · Mortality · Branchitis · Fish · Acid sulfate soils · Saprolegniasis · Epizootic ulcerative syndrome · EUS Resale or republication not permitted without written consent of the publisherDis Aquat Org 63: [247][248][249][250][251][252][253] 2005 posure (Daye & Garside 1980, Freda & McDonald 1988, Playle et al. 1989, Mount et al. 1990, Witters et al. 1990, Norrgren et al. 1991, Poleo et al. 1991, Galle & Montoroi 1993. Gill lesions, typically including lamellar epithelial hyperplasia and fusion of secondary lamellae, are common in fish exposed naturally or experimentally to acidified water (Daye & Garside 1976, Linnenbach et al. 1987, Dietrich & Schlatter 1989, Norrgren et al. 1991. Mild skin lesions, including increased secretion of mucus, cutaneous goblet cell hypertrophy and/or hyperplasia, as well as more severe skin lesions, including epidermal necrosis and sloughing, have also been described in fish exposed experimentally to acidified water (Daye & Garside 1976, Tandjung et al. 1982, Segner et al. 1988, Ingersoll et al. 1990b, Iger & Wendelaar Bonga 1994. We have found no reports of skin lesions in naturally exposed fish.In this paper we describe severe dermatitis with opportunist mycotic involvement, branchitis and mortality in a wild population of empire gudgeon Hypseleotris compressa, an Australian eleotrid, exposed naturally to acidified runoff from ASS. MATERIALS AND METHODSAs part of a study examining possible relationships between ASS runoff and deleterious effects on aquatic biota, water quality ...

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Section: Discussioncontrasting

confidence: 53%

Dermatitis, branchitis and mortality in empire gudgeon Hypseleotris compressa exposed naturally to runoff from acid sulfate soils

Callinan¹,

Sammut²,

Fraser³

2005

Dis. Aquat. Org.

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“…The mucus, secreted by the MCs, on the gill surface has been considered an important protection against abrasive injuries by solid materials suspended in water, pathogenic bacteria, parasites (McCahon et al, 1987;Deszfuli et al, 2003), air-exposure (Chandra & Banerjee, 2003Banerjee, 2007) and pollutant Hemalatha & Banerjee, 1997a, 1997bSingh & Munshi, 1996;Ledy et al, 2003;Roberts & Powell, 2005;Singh & Banerjee, 2008). Furthermore, mucus may play a role in the ion regulation (Handy et al, 1989;Roberts & Powell, 2003;Powel, 2007).…”

Section: Introductionmentioning

confidence: 99%

Response of mucous cells of the gills of traíra (Hoplias malabaricus) and jeju (Hoplerythrinus unitaeniatus) (Teleostei: Erythrinidae) to hypo- and hyper-osmotic ion stress

2009

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“…The significant increase in mucous cells in fish treated with a high peracetic acid concentration is probably a protective response to irritant acidic environmental conditions (Ledy et al 2003). This response was not evident for chloramine T, in line with its chemical features.…”

Section: Discussionmentioning

confidence: 62%

Effects of two water disinfectants (chloramine T and peracetic acid) on the epidermis and gills of Garra rufa used in human ichthyotherapy

Sirri¹,

Zaccaroni²,

Biase³

et al. 2013

Polish Journal of Veterinary Sciences

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Doctor fish (Garra rufa) have recently been used for aesthetic purposes and as a medical treatment in patients with psoriasis (ichthyotherapy). For this particular kind of human therapy it is essential to guarantee adequate hygienic conditions for both people and fish. The aim of this study was to test two concentrations of water disinfectants, chloramine T and peracetic acid, on Garra rufa to ascertain possible exposure damage to the epidermis and gills. Fish were exposed to 2 mg/l and 10 mg/l of chloramine T and to 15 μl/l and 45 μl/l of peracetic acid in a 40-minute static bath up to six times a day for one week. The epidermis and gills were checked for histological changes and the number of epidermal mucous cells, club cells and taste buds were quantified; mucous cells were also characterized histochemically to detect alterations in mucin production. No mortality or severe histological changes were found in treated or control fish. Cell count showed a significant increase (p<0.05) in mucous cells (mean 49.1 ± 6.7 vs 37.0 ± 13.1 of controls) in animals treated with peracetic acid independently of the dose. Club cell number showed a significant (p<0.05) decrease in fish treated with 2 mg/l of chloramine T (mean 74.3 ± 15.6) and with 45 μl/l of peracetic acid (mean 78.17 ± 10.5) compared to controls (mean 107.0 ± 19.2). Histochemical evaluation of mucous cells did not reveal changes in mucin type in fish exposed to the two disinfectants. The results suggest a good tolerability of Garra rufa to the two disinfectants at the concentrations tested.

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Mucous cell responses in gill and skin of brown trout Salmo trutta fario in acidic, aluminium-containing stream water

Cited by 55 publications

References 20 publications

Dermatitis, branchitis and mortality in empire gudgeon Hypseleotris compressa exposed naturally to runoff from acid sulfate soils

Dermatitis, branchitis and mortality in empire gudgeon Hypseleotris compressa exposed naturally to runoff from acid sulfate soils

Response of mucous cells of the gills of traíra (Hoplias malabaricus) and jeju (Hoplerythrinus unitaeniatus) (Teleostei: Erythrinidae) to hypo- and hyper-osmotic ion stress

Effects of two water disinfectants (chloramine T and peracetic acid) on the epidermis and gills of Garra rufa used in human ichthyotherapy

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