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Iron Fertilization Can Enhance the Mass Production of Copepod, Pseudodiaptomus annandalei , for Fish Aquaculture.
- Source :
- Life (2075-1729); Feb2023, Vol. 13 Issue 2, p529, 14p
- Publication Year :
- 2023
-
Abstract
- Copepods are proven nutritious food sources for the mariculture/larviculture industry, however, unreliable methods for mass production of copepods are a major bottleneck. In this study, we modified a previously reported inorganic fertilization method (N: 700 μg L<superscript>−1</superscript> and P: 100 μg L<superscript>−1</superscript>) by the addition of iron (Fe: 10 μg L<superscript>−1</superscript>, using FeSO<subscript>4</subscript>·7H<subscript>2</subscript>O) (+Fe treatment) and compared its suitability for copepod culture (Pseudodiaptomus annandalei) to the original method (control). The experiment was conducted outdoors in 1000 L tanks for 15 days. The addition of iron prolonged the growth phase of the phytoplankton and resulted in the production of significantly more small phytoplankton (0.45–20 μm, average 2.01 ± 0.52 vs. 9.03 ± 4.17 µg L<superscript>−1</superscript> in control and +Fe, respectively) and adult copepods (control: 195 ± 35, +Fe: 431 ± 109 ind L<superscript>−1</superscript>), whereas copepodid-stage was similar between treatments (control: 511 ± 107 vs. +Fe: 502 ± 68 ind L<superscript>−1</superscript>). Although adding iron increased the cost of production by 23% compared to the control, the estimated net profit was 97% greater. We concluded that inorganic fertilization, with the addition of iron (Fe: 10 μg L<superscript>−1</superscript>), could be an effective method for the mass production of copepods for larviculture. [ABSTRACT FROM AUTHOR]
- Subjects :
- MASS production
FISH farming
EFFECTIVE mass (Physics)
IRON
CORPORATE profits
Subjects
Details
- Language :
- English
- ISSN :
- 20751729
- Volume :
- 13
- Issue :
- 2
- Database :
- Complementary Index
- Journal :
- Life (2075-1729)
- Publication Type :
- Academic Journal
- Accession number :
- 162135556
- Full Text :
- https://doi.org/10.3390/life13020529