نتایج جستجو برای: saprolegnia sp
تعداد نتایج: 120432 فیلتر نتایج به سال:
Odontesthes bonariensis is a freshwater teleost fish from the Pampean inland waters, with an important economic potencial. The conditions of its intensive culture systems favour the proliferation of pathogen agents. This work describes the ocurrence of Achlya racemosa Hildebrand on eggs, and of Saprolegnia ferax (Gruith.) Thuret on a juvenile of Argentinian silverside (Odonthestes bonariensis)....
Studies of fungi and fungus- like organisms in the northeastern Poland have mainly concentrated on running waters in the vicinity of Białystok, including the Horodnianka River. The main objective was to investigate biodiversity of fungi and fungus-like organisms which take part in decomposition of organic matter commonly found in inland waters. To obtain a complete picture of species compositio...
The olm (Proteus anguinus) is a troglomorphic, neotenous amphibian with extraordinary life expectancy and unique adaptations that deserve further investigation. A low reproductive rate and habitat decline render it threatened by extinction. Establishing captive populations for maintenance and artificial breeding may one day become crucial to the species. Longitudinal, in-vivo assessment of inne...
—The effect of water temperature on the efficacy of hydrogen peroxide (H2O2) as a disinfectant for channel catfish Ictalurus punctatus eggs was examined at 248C and 288C. Eggs at each temperature were treated with H2O2 at 0, 100, 250, 500, or 1,000 mg/L as a daily 15-min bath. Mean hatching success at 248C was greatest (P . 0.05) for eggs treated with 250 and 500 mg/L H2O2, hatching success ten...
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