In commercial fish aquaculture, it is crucial to ensure that environmental rearing conditions
are adequate, if not optimal, for fish growth, welfare and profitability. In recirculating …

In hypoxia, air-breathing fish obtain O2 from the air but continue to excrete CO2 into the
water. Consequently, it is believed that some O2 obtained by air-breathing is lost at the gills …

This chapter introduces principles for welfare assessment of farmed fish. The introduction
details the developments in science and society regarding the proposition that fish have a …

One of the most air-reliant obligate air-breathing fish is the South American Arapaima gigas,
with substantially reduced gills impeding gas diffusion, thought to be a result of recurring …

There is a tendency to farm fish in low turbidity water when production takes place in the
land-based recirculating aquaculture systems (RAS). However, the effect of water turbidity …

The evolutionary and ontogenetic changes from water-to air-breathing result in major
changes in the cardiorespiratory systems. However, the potential changes in hemoglobin's …

The acute toxicity and sublethal effects of ammonia and nitrite on the air-beathing Siamese
fighting fish, betta (Betta splendens) was studied for 96 h. The LC50 (50% Lethal …

The evolution of hemoglobin function in the transition from water‐to air‐breathing has been
highly debated but remains unresolved. Here, we characterized the hemoglobin function in …

This review first points out the importance of the Mekong Delta in food production and
biodiversity. We then summarize the current knowledge about the major threats to …