Are the intertidal fish highly resistant to UV-B radiation? A study based on oxidative stress in Girella laevifrons (Kyphosidae)

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

“…Exposure of natural waters to UV radiation in the presence of dissolved organic carbon results in the production of hydrogen peroxide and other reactive oxygen species (ROS) that likely mediate some of the damage caused by UV radiation in fish [3,35]. When UV-B radiation induces the generation of ROS in surface water, hydrogen peroxide forms and accumulates as a result of DOC photo-activation [36].…”

“…Such high energy photon can potentially damage many biological molecules [1]. Of the three type of incoming UV radiation, UV-B (280-320 nm) remained stressful to the terrestrial plants and animals including human [2,3]. UV-B radiation is an environmental stressor for aquatic consumers like zooplankton, crustaceans, amphibians, fish and corals [4,2].…”

“…Although the overall biology of oxidative protein modifications remains complex and ill defined, protein carbonylation is quite well characterized [3].…”

Efecto del endoparásito Prosorhynchoides sp. (Trematoda: Bucephalidae) en la capacidad de nado sostenido del baunco Girella laevifrons (Osteichthyes: Kyphosidae)

“…Promedio ± desviación estándar de las variables biológicas medidas en juveniles de baunco Girella laevifrons / Mean values ± standard deviation of biological variables measured in juvenile fish of Girella laevifrons Los resultados de estos experimentos sugieren que los parásitos tienen un efecto negativo en la capacidad de nado de G. laevifrons, debido a que el tiempo de nado sostenido fue significativamente menor en PP que en PNP. G. laevifrons es capaz de resistir distintos estresores, tales como factores ambientales, antrópicos y/o ecológicos (Carrasco-Malio et al 2014, Pulgar et al 2014, por lo tanto la manipulación adicional en los PP, al momento de infectarlos con cercarias, podría tener poco efecto en la capacidad de nado, y no invalidaría la comparación entre ambos grupos de peces (PP y PNP). Además, el tiempo de nado no se correlacionó con la abundancia de parásitos; peces que tenían pocas metacercarias (abundancia mínima encontrada= 9) mostraron similar tiempo de nado que aquellos que tenían muchas metacercarias (más de 200).…”

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

“…Substantial incidence of UV-B radiation at higher altitudes may be a selective filter for tolerant fishes. Intertidal fishes like sea chub (Girella laevifrons) were shown to possess decreased UV-B sensitivity [48].…”