The effect of environmental hypercapnia and size on nitrite toxicity in the striped catfish (Pangasianodon hypophthalmus)
详细信息 查看全文
- 作者：Malthe Hvasa ; Christian Damsgaarda ; Le Thi Hong Gamb ; Do Thi Thanh Huongb ; Frank B. Jensenc ; Mark Bayleya ; mark.bayley@bios.au.dk" class="auth_mail" title="E-mail the corresponding author
- 关键词：PaCO2 ; arterial partial pressure of carbon dioxide ; PwCO2 ; water partial pressure of carbon dioxide ; pHe ; plasma pH ; pHw ; water pH ; pK' ; acid dissociation constant for CO2 hydration ; MetHb ; methaemoglobin ; HbNO ; iron-nitrosyl haemolobin ; OxyHb ; oxygenated haemoglobin ; DeoxyHb ; deoxygenated haemoglobin
- 刊名：Aquatic Toxicology
- 出版年：2016
- 出版时间：July 2016
- 年：2016
- 卷：176
- 期：Complete
- 页码：151-160
- 全文大小：1756 K
文摘
- •
Hypercapnia protects against nitrite uptake during initial stages of respiratory acidosis.
- •
After pH compensation nitrite uptake is greatly enhanced to above normocapnic uptake rates.
- •
We present evidence of a temporal shift from H+/Na+ to Cl−/HCO3− exchange during pH regulation.
- •
Small fish are better at oxidizing nitrite into nitrate, probably due to higher hematocrit.