Nitrate-induced elevations in circulating sex steroid concentrations in female Siberian sturgeon (Acipenser baeri) in commercial aquaculture

The selective deposition of silver nanoparticles onto {1 0 1} facets of TiO 2 nanocrystals with co-exposed {0 0 1}/{1 0 1} facets, and their enhanced photocatalytic reduction of aqueous nitrate under simulated solar illumination

“…The synergistic effect of crystal facet engineering and the selective deposition of silver nanoparticles on {1 0 1} facets largely enhanced the separation of photogenerated carriers and enriched the presence of photogenerated electrons onto the surface of TiO 2 to a net negative-charged surface, which largely enhanced its photocatalytic reduction performance. As one of the most common groundwater contaminants, nitrate could cause various health problems to human beings and has a large impact on the natural nitrogen cycle [43][44][45]. These TiO 2 nanocrystal with co-exposed {0 0 1}/{1 0 1} facets and silver modification on {101} facets demonstrated a superior photocatalytic reduction activity on aqueous nitrate under a simulated solar illumination.…”

Effects of elevated nitrate on endocrine function in Atlantic salmon, Salmo salar

“…Nitrate is a known cause of methemoglobinemia, which affects both human and non-human vertebrates, and reduces the capacity of hemoglobin to bind oxygen and carry it through the body (reviewed by Guillette and Edwards, 2005). It has received recent Aquaculture 436 (2015) 8-12 attention as an endocrine disrupting chemical (EDC) due to its effect on reproductive and thyroid hormone systems (Edwards and Guillette, 2007;Edwards et al, 2006;Guillette and Edwards, 2005;Hamlin et al, 2008). Nitrate is a goitrogen and interferes with the production of thyroid hormones (THs) by competitively binding to the sodium/iodide symporter (NIS) on thyroid follicles, decreasing the availability of iodide (I − ) for use in TH synthesis (De Groef et al, 2006;Lahti et al, 1985;Tonacchera et al, 2004).…”

Dissimilatory reduction of nitrate in seawater by a Methylophaga strain containing two highly divergent narG sequences

“…However, highly soluble molecules such as nitrate, which is generated from animal-derived nitrogenous compounds (that is urea), could prove to be toxic for the fish and invertebrates (Grguric et al, 2000;Parent and Morin, 2000;Hamlin et al, 2008b). For instance, in marine environments, the nitrate concentration should not exceed 20 mg NO 3 À -N/L to protect aquatic animals (Camargo et al, 2005).…”