Water temperature of shrimp pond

Water temperature of shrimp pond

Shrimp and fish are cold-blooded species (poikilotherm). Their temperature changes according to the external environment. This is different from human body temperature as we are warm-blooded, or homeothermic. Temperature especially…

Control water quality in shrimp farming

Control water quality in shrimp farming

Good water quality by proper management will help prevent shrimp diseases and create an environment for better growth and higher survival rate. Factor Measurement device Test time Turbidity Secchi disk…

Compounds of nitrogen: ammonia (NH3/NH4+), nitrite (NO2-) and nitrate (NO3-)

Compounds of nitrogen: ammonia (NH3/NH4+), nitrite (NO2-) and nitrate (NO3-)

Ammonia (NH3/NH4+): Ammonia (NH3/NH4+) occurs because of: • The use of feed for shrimp, fish and aquatic animals • The decomposition of organic matter in water under the affect of…

Algae in aquaculture water

Algae in aquaculture water

In aquaculture water, there are 5 groups of microorganisms and algae: • Algae – phytoplankton (algae)• Bacteria• Fungal spores (fungi)• Viruses• Zooplankton Common groups of algae in aquaculture ponds: •…

pH of water in aquaculture

pH of water in aquaculture

In aquaculture, changes in the pH values can affect the physical elements, chemistry, and biology of water environment as well as the health of shrimp or fish.– The appropriate pH…

Aquaculture in rainy and flood season 

Aquaculture in rainy and flood season 

During rainy season, floods often occur creating unfavorable weather conditions for shrimp farming: temperature changes during a day and widespread thunderstorms making abrupt changes in water environment, causing shock in…

A Vietnamese Aquaculture Expert and the Book ‘Method of Salmonid Aquaculture in Vietnam.’

A Vietnamese Aquaculture Expert and the Book ‘Method of Salmonid Aquaculture in Vietnam.’

On a morning at the end of July, 2012, Mr. Vu The Tru, an aquaculture engineer, introduced us a hatchery where salmon is reared at University of Washington in Washington…