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EFFECTS OF TEMPERATURE ON THE NUTRITIONAL REQUIREMENTS OF ARTEMIA SALINA (L.).
The Biological Bulletin
|January 12, 2018
Summary
Artemia growth rates increase with temperature, but nutrient needs change. Optimal feeding strategies for Artemia must balance temperature and salinity with adenosine monophosphate (AMP) and nutrient levels.
Area of Science:
- Aquaculture
- Marine Biology
- Animal Nutrition
Background:
- Artemia, a vital live feed in aquaculture, has nutritional requirements that can be influenced by environmental factors.
- Understanding these factors is crucial for optimizing Artemia cultivation and subsequent larval fish or shrimp development.
Purpose of the Study:
- To investigate the impact of temperature and salinity on the nutritional requirements of Artemia.
- To determine the optimal levels of adenosine monophosphate (AMP) and key nutrients for maximal Artemia growth at different temperatures.
Main Methods:
- Artemia were cultured in a uniform basic medium under controlled temperature (25°C and 30°C) and varying salinity conditions.
- Growth rates and biomass were measured to assess the effects of different concentrations of AMP, albumin, and starch.
Main Results:
- Artemia exhibited a faster growth rate at 30°C compared to 25°C.
- Temperature and salinity demonstrated opposing effects on the quantitative requirement for AMP.
- Maximal growth at 30°C required higher levels of AMP and albumin, and lower levels of starch, compared to 25°C.
- The influence of temperature on growth was mediated by the ratio of energetic nutrients to AMP.
Conclusions:
- Optimal Artemia nutrition is temperature-dependent, necessitating adjustments in AMP, albumin, and starch levels.
- The interplay between temperature, salinity, and nutrient ratios significantly affects Artemia growth and nutritional demands.
- These findings provide critical insights for formulating effective feeding strategies in aquaculture to enhance Artemia production.
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