Tolerance to temperature, pH, ammonia and nitrite in cardinal tetra, Paracheirodon axelrodi, an amazonian ornamental fish

Acta Amazonica

Sarah Ragonha De Oliveira²  Rondon Tatsuta Yamane Baptista De Souza²  Érica Da Silva Santiago Nunes²  Cristiane Suely Melo De Carvalho²  Glauber Cruz De Menezes²  Jaydione Luíz Marcon¹  Rodrigo Roubach¹  Eduardo Akifumi Ono²  Elizabeth Gusmão Affonso² 

[1] ,Instituto Nacional de Pesquisas da Amazônia Coordenação de Pesquisas em Aquacultura

关键词: 96-h LC50;    ornamental fish;    Paracheirodon axelrodi;    water quality;    96-h LC50;    Paracheirodon axelrodi;    peixe ornamental;    qualidade da água;   

DOI  :  10.1590/S0044-59672008000400023

来源: SciELO

【 摘 要 】

Poor water quality condition has been pointed out as one of the major causes for the high mortality of ornamental fishes exported from the state of Amazonas, Brazil. The purpose of the current study was to define water quality standards for cardinal tetra (Paracheirodon axelrodi), by establishing the lower and higher for lethal temperature (LT50), lethal concentration (LC50) for total ammonia and nitrite and LC50 for acid and alkaline pH. According to the findings, cardinal tetra is rather tolerant to high temperature (33.3 ºC), to a wide pH range (acid pH=2.9 and alkaline pH=8.8) and to high total ammonia concentration (23.7 mg/L). However, temperatures below 19.6 ºC and nitrite concentrations above 1.1 mg/L NO2- may compromise fish survival especially during long shipment abroad.

【 授权许可】

CC BY   
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