2015
DOI: 10.1590/s1984-46702015000300006
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Abstract: | Sociedade Brasileira de Zoologia | www.sbzoologia.org.br | www.scielo.br/zool All content of the journal, except where identified, is licensed under a Creative Commons attribution-type BY-NC.Dissolved organic matter, an integral part of all ecosystems, results from the decay of plant and animal debris (THURMAN 1985). It comprises humic, fulvic, and other organic acids, and is usually quantified as dissolved organic carbon (DOC) (WOOD et al. 2011). DOC is known to positively regulate several biotic/abiotic pr… Show more

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Cited by 10 publications
(7 citation statements)
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References 26 publications
(50 reference statements)
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“…The marked morphological responses of the silver catfish gill in the presence of the tested concentrations of Aldrich HA indicate that the substance was more detrimental to the branchial structure and hence silver catfish physiology than the low pH itself. Thus, the poor zootechnical performance previously reported for the species (Costa et al, 2015(Costa et al, , 2016 can be related to the harmful effect of the commercially available Aldrich HA upon the gills, confirming that the substance is not an alternative to alleviate the burden of acidic stress and consequently improve rearing conditions.…”
Section: F I G U R Ementioning
confidence: 92%
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“…The marked morphological responses of the silver catfish gill in the presence of the tested concentrations of Aldrich HA indicate that the substance was more detrimental to the branchial structure and hence silver catfish physiology than the low pH itself. Thus, the poor zootechnical performance previously reported for the species (Costa et al, 2015(Costa et al, , 2016 can be related to the harmful effect of the commercially available Aldrich HA upon the gills, confirming that the substance is not an alternative to alleviate the burden of acidic stress and consequently improve rearing conditions.…”
Section: F I G U R Ementioning
confidence: 92%
“…Previous works have been carried out supposing that a commercial source of DOC, humic acid (HA; Aldrich), would promote the development of silver catfish in acidic conditions and hence represent an alternative to be used in neutral water rearing stations. Contradicting such hypothesis, results showed that it did not protect the species against acidic pH (Costa et al., ), and also reduced growth (Costa et al., ). Commercially available Aldrich HA has been reported as inefficient in preventing ionoregulatory disturbance in freshwater stingray ( Potamotrygon spp.)…”
Section: Introductionmentioning
confidence: 99%
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“…Aktivitas enzim pencernaan dari usus ikan yang diberi pakan dengan perbedaan penambahan dosis AH selama 70 hari pemeliharaan Tabel 4. Digestive enzim activity in fish intestine with addition of different dosages of humic acid for 70 days cultivation Pengaruh penambahan asam humat pada pakan mengandung ..... (Rasidi) mampu meningkatkan gambaran darah pada ikan silver catfish, Rhamdia quelen (Da Costa et al, 2015) dan ikan rainbow trout (Yýlmaz et al, 2018).…”
Section: Hasil Dan Bahasanunclassified
“…A study with green swordtail (Xiphophorus helleri) has been the only to report some beneficial effect on fish growth for humic substances (MEINELT et al, 2004). Humic substances apparently have a protective effect on osmoregulation in some fish species exposed to acidic waters (GONZALES et al, 2002;2005;WOOD et al, 2003), but not in silver catfish (COSTA et al, 2015). Due to the relevant commercial importance of silver catfish in the south of Brazil, this study aimed to evaluate the effect of different concentrations of humic acid (HA) (a fraction of humic substance) on the species performance when exposed to different pHs.…”
Section: Introductionmentioning
confidence: 99%