Season and physiological parameters modulate salmonid leucocyte androgen receptor affinity and abundance

Slater, Caleb H.; Schreck, Carl B.

doi:10.1006/fsim.1998.0150

Cited by 44 publications

(32 citation statements)

References 41 publications

(60 reference statements)

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“…[21]. In winter, fish suffer from multiple chronic stressors as low water temperature and food restriction and the immune status of the overwintering fish is known to be suppressed [1]. In this study, the weekly repeated acute handling stress is beneficial to the immune response and disease resistance of the overwintering gibel carp chronically stressed by low temperature and food deprivation.…”

Section: Discussionmentioning

confidence: 83%

“…Fish suffer from the multiple stressors as the low water temperature, photoperiod and food deprivation. In winter, the immune function of fish is inhibited and fish is prone to be attacked by virus or bacteria [1]. In North China, overwintering leads to the mortality rate of more than 20% of fish [2].…”

Section: Introductionmentioning

confidence: 99%

“…Serum lysozyme activity, levels of respiratory burst by head kidney macrophages, blood cell counts and acquired antibody titres against Vibrio anguillarum, were all found to be positively correlated with season [6]. Therefore, the immune response of fish is known to vary seasonally and the immune parameters are suppressed during winter [1]. It is necessary to alleviate the immune suppression and improve the survival of the farmed fish during overwintering.…”

Section: Introductionmentioning

confidence: 99%

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Effects of repeated handling and air exposure on the immune response and the disease resistance of gibel carp (Carassius auratus gibelio) over winter

Yang

Wang

et al. 2015

Fish & Shellfish Immunology

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Section: Discussionmentioning

confidence: 83%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effects of repeated handling and air exposure on the immune response and the disease resistance of gibel carp (Carassius auratus gibelio) over winter

Yang

Wang

et al. 2015

Fish & Shellfish Immunology

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“…Fish suffer from the multiple stressors, such as low water temperature, photoperiod and food deprivation. The immune response of fish is known to vary seasonally and the immune functions are suppressed in winter which may lead to a high mortality of fish [1]. In North China, overwintering leads to a mortality rate of more than 20% of the cultured fish [2].…”

Section: Introductionmentioning

confidence: 99%

Repeated handling compromises the immune suppression and improves the disease resistance in overwintering channel catfish (Ictalurus punctatus)

Yang

Wang

et al. 2015

Fish & Shellfish Immunology

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“…Epizootic papillomatosis during the spawning period has also been described in smelt (Anders & Möller 1985, Lee & Whitfield 1992. Several indications of a dysfunction in fish immune defence during the reproductive period are known (Iida et al 1989, Slater & Schreck 1998, Hou et al 1999, Skarstein et al 2001. A decrease in the fish immunocompetence may increase the risk of infections and diseases during sexual maturation and reproduction.…”

mentioning

confidence: 99%

Epizootic cutaneous papillomatosis in roach Rutilus rutilus: sex and size dependence, seasonal occurrence and between-population differences

Kortet¹,

Vainikka²,

Taskinen³

2002

Dis. Aquat. Org.

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Epidemiology of epidermal papillomatosis in roach Rutilus rutilus was studied in 11 roach populations in Finland in 1999 and 2000 during the spawning period. In addition, the seasonal pattern of the disease was described in 1 population. Papilloma tumours were observed on the skin and fins of roach in 8 populations out of 11. Prevalence of papillomatosis varied from 0 to 62%, being higher in populations subject to industrial or sewage effluents. Males and large fish had higher prevalence of papilloma tumours. The disease outbreak peaked during the spawning period and signs of recovered skin on fish were observed later during the year. The gender dependence in the disease prevalence found in the study may indicate differences in stress and immunocompetence between roach males and females during the spawning period.KEY WORDS: Spawning papillomatosis · Roach · Tumours · Seasonality · Gender dependence · Pollution Resale or republication not permitted without written consent of the publisherDis Aquat Org 52: [185][186][187][188][189][190] 2002 gested immunomodulative role of androgens (Folstad & Karter 1992, Braude et al. 1999) and intensive spawning of roach (Wedekind 1996), we expected males to have higher prevalences and intensities of papilloma, especially during spawning. We studied the prevalence of the disease during spawning from separated roach populations in randomly chosen polluted and non-polluted waters to monitor the possible environmental aspects of the phenomenon (Möller & Anders 1986). In one of the populations, we also studied the seasonal pattern of the disease. MATERIALS AND METHODSA total of 1683 adult roach specimens (mean length ± SD; 159.1 ± 29 mm) were collected using netting, and studied during the spawning period from 6 populations between April and May 1999, and from 11 populations in 2000. Sampled populations, exact sample sizes and dates are given in Table 1. The sampled populations were classified into 2 groups by their pollution backround (e.g. Paasivirta et al. 1986, Granberg 1987: (1) human-impact waters including industrial and/or sewage effluents, and (2) non-human-impact waters (see Table 1). The study populations were from separate areas, and were within 100 km distance from the city of Jyväskylä (62°14' N, 25°46' E, central Finland), except for Lake Viitajärvi (64°38'N, 24°26'E, the Baltic Sea population, northern Finland) and River Alajoki (60°90' N, 28°12' E, discharging to the Baltic Sea, south-east Finland).The seasonal occurrence of the disease was studied from 8 additional samples (n = 434) taken between February and November 1999 from Lake Jyväsjärvi. This lake was chosen for the seasonal study, because earlier observations indicated that disease occurrence was most severe in this lake. Exact monthly sample sizes and dates for Lake Jyväsjärvi are given in Fig. 1. Fish were caught by angling and netting.Fish were killed with a sharp blow to the head immediately after catching. We measured the fork length of the fish and determined the sex by examining the gon...

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Season and physiological parameters modulate salmonid leucocyte androgen receptor affinity and abundance

Cited by 44 publications

References 41 publications

Effects of repeated handling and air exposure on the immune response and the disease resistance of gibel carp (Carassius auratus gibelio) over winter

Effects of repeated handling and air exposure on the immune response and the disease resistance of gibel carp (Carassius auratus gibelio) over winter

Repeated handling compromises the immune suppression and improves the disease resistance in overwintering channel catfish (Ictalurus punctatus)

Epizootic cutaneous papillomatosis in roach Rutilus rutilus: sex and size dependence, seasonal occurrence and between-population differences

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