acid–base balance
- The effects of elevated temperature and PCO2 on the energetics and haemolymph pH homeostasis of juveniles of the European lobster, Homarus gammarus
Summary: Energetic limitations of early juvenile development result in alterations to haemolymph buffering capacity in juvenile lobster exposed to elevated temperature and PCO2.
- Assessing intracellular pH regulation in H+-ATPase-rich ionocytes in zebrafish larvae using in vivo ratiometric imaging
Summary: Intracellular pH measurements in vivo in ion-transporting cells of zebrafish larvae reveal the roles of ion-transport-related proteins in intracellular acid–base regulation.
- Quantifying the acid–base status of dragonflies across their transition from breathing water to breathing air
Summary: Dragonflies show a moderate rise in hemolymph bicarbonate as they transition from water breathing to air breathing, while the non-bicarbonate buffer capacity of their hemolymph is low relative to that of other insects.
- Multiple functions of ion transport by the nuchal organ in embryos and neonates of the freshwater branchiopod crustacean Daphnia magna
Summary: Measurements with the scanning ion-selective microelectrode technique reveal roles of the nuchal organ in ionoregulation, pH regulation and nitrogenous waste excretion by Daphnia magna.
- Does the left aorta provide proton-rich blood to the gut when crocodilians digest a meal?
Summary: Blood in the left aorta of American alligators does not contain elevated PCO2 levels during digestion.
- Ocean acidification does not limit squid metabolism via blood oxygen supply
Summary: Based on experimental and theoretical evidence, it seems unlikely that ocean acidification will impair blood oxygen supply in active squid.
- Interaction of osmoregulatory and acid–base compensation in white sturgeon (Acipenser transmontanus) during exposure to aquatic hypercarbia and elevated salinity
Summary: Acidosis recovery in hypercapnic sturgeon associates with plasma Na+ accumulation prior to and plasma Cl− removal following osmotic recovery, as osmoregulatory requirements transition from ion uptake to ion excretion throughout seawater acclimation.