1991
DOI: 10.1093/plankt/13.6.1339
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Seasonal uptake and regeneration of inorganic nitrogen and phosphorus in a large oligotrophic lake: size-fractionation and antibiotic treatment

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Cited by 55 publications
(50 citation statements)
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“…This strong affinity for NH 4 + relative to NO 3 2 is consistent with data published for freshwater plankton (Dodds et al 1991) and reflects lower energetic requirements for using NH 4 + than NO 3…”
Section: Discussionsupporting
confidence: 90%
“…This strong affinity for NH 4 + relative to NO 3 2 is consistent with data published for freshwater plankton (Dodds et al 1991) and reflects lower energetic requirements for using NH 4 + than NO 3…”
Section: Discussionsupporting
confidence: 90%
“…Nitrification-Nitrification accounted for 9%-15% of NH uptake in the stream substrata, consistent with docu-ϩ 4 mented values for this system (Dodds et al 2000). In a comparative study that used 15 N tracers, Peterson et al (2001) found that, on average, 20%-30% of NH uptake within the ϩ 4 stream channel was due to nitrification, ranging from Ͻ3% to 60% across systems.…”
Section: Discussionsupporting
confidence: 67%
“…Dodds (2002) compiled several sources of data on algal N uptake and found a 10 3 range for K s between 0.001 and 0.98 mg L Ϫ1 that included both NO and NH does not have to be reduced by organisms prior to incorporation and consequently requires less energy to assimilate. This result is consistent with observations elsewhere in which NH was removed more quickly than NO (Dodds et ϩ Ϫ 4 3 al.…”
Section: Discussionmentioning
confidence: 99%
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“…O modelo de regressão linear mostrou que as concentrações de NH 4 -N estiveram relacionadas de forma negativa com a retenção do NO 3 -N. Estudos já comprovaram a preferência por NH 4 -N por diversos organismos autotróficos e heterotróficos em ecossistemas aquáticos (GIBSON et al, 2015;OVIEDO-VARGAS;JOHNSON, 2013;PASTOR et al, 2013), o que é geralmente atribuído ao menor requisito energético para a assimilação de NH 4 -N (DODDS;PRISCU;ELLIS, 1991 As relações encontradas pelo teste de Spearman entre a retenção de SRP e %CV em riachos enriquecidos (r = -0,79 para U amb e V f-amb ) sugerem que a atividade autotrófica também pode ser significativa. O aumento da quantidade de luz que chega ao riacho fornece condições ideais para seres autotróficos, além de gerar um aumento na temperatura, estimulando a atividade metabólica (REDDY et al, 1999;TRISKA et al, 2006 …”
Section: Variável Dependenteunclassified