Additive effects of enhanced ambient ultraviolet B radiation and increased temperature on immune function, growth and physiological condition of juvenile (parr) Atlantic Salmon, Salmo salar

Effect of UV-B radiation on the antibody response of fish – Implication on high altitude fish culture

“…One or more of these or other mechanisms might have caused the suppression of antibody response to the model antigen (S-BSA) in this study. This is in agreement with the findings in studies conducted in other fishes like Atlantic salmon [21], rainbow trout and common carp [35,36]. The mechanisms underlying this phenomenon should be investigated further in fish, for clearly identifying the mechanism of UV-B mediated immunosuppression.…”

“…Further UV-B irradiated fishes showed apparent stress [19] as deduced by their elevated plasma cortisol levels [20]. On the other hand, prolonged exposure to enhanced UV-B radiation also affects specific immune response like decreased plasma IgM and complement bactericidal activity [21]. These data correlate with that of clinical manifestations of immunosuppression in man [22].…”

Simulation study of natural UV-B radiation on Catla catla and its impact on physiology, oxidative stress, Hsp 70 and DNA fragmentation

“…UV-B radiation is an environmental stressor for aquatic consumers like zooplankton, crustaceans, amphibians, fish and corals [4,2]. Exposition of planktonic, freshwater fish eggs and their larvae to UV-B radiation results in increased mortality and may lead to poorer recruitment to adult populations [5][6][7]. The ultraviolet radiation is associated with the production of free active oxygen species (ROS) including free radicals from oxygen and other oxygen-derived compounds [8][9][10][11]2].…”

Effect of gamma radiation on the growth, survival, hematology and histological parameters of rainbow trout (Oncorhynchus mykiss) larvae

“…The percentages of dead fish during the experiment showed an increase in the number of dead animals as the doses increased, with highest percentage in 40 Gy followed by 20 and 10 Gy. The confliction between increase (Engel, 1967;ICRP, 2008) and decreasing (Welander et al, 1971;Cosgrove and Blaylock, 1973) mortality at higher irradiation levels is possibly related to differences in species, size of the animal, irradiation levels, or kind of irradiation (Wyffels et al, 2005;Jokinen et al, 2011). When rainbow trout are exposed to 2 to 10 Gy, Chilmonczyk and Oui (1988) stated that the susceptibility of fish to ␥-rays depends on the age of the fish.…”