Effect of salinity on natural community and production of Litopenaeus vannamei (Boone), within experimental zero-water exchange culture systems
By O. Decamp, Jeff Cody, L. Conquest, G. Delanoy, A. Tacon. 2003
85 citations recorded by the source corpus.
Recent efforts have been made to culture marine shrimp in systems operating under low or zero-water exchange and with decreased water salinity. The aim of this study was to investigate the impact of various salinity levels on qualitative and quantitative characteristics of the natural community and, more particularly, ciliated protozoa, and compare this information with shrimp growth and survival. Tanks with 9‰ salinity were characterized by a higher pH, but also by a significantly higher concentration of chlorophyll a (Chl a) per weight of suspended matter (1.93 ± 0.72 µg Chl a/mg TSS) than tanks with 18‰ (1.29 ± 0.68 µg Chl a/mg TSS) or 36‰ (1.37 ± 0.61 µg Chl a/mg TSS) salinity. Concentrations of ciliates (max 6000 cells mL−1) showed considerable fluctuations over the sampling period, reflecting the impact of water salinity, dynamic interactions between ciliates and their diverse roles within the shrimp production system. There was no significant difference between survival rates of shrimp reared at 9‰, 18‰ or 36‰, but decreasing salinity from 36‰ to 9‰ led to a significant decrease in final shrimp body weight (from 13.40 ± 0.26 g to 10.23 ± 2.72 g). Future work should address the potential of ciliates as an indicator of aquaculture water quality, as is currently being done in the wastewater industry, and the contribution of ciliates as food sources.
Subfields: Aquatic Science, Ecology, Immunology
View Paper: https://www.semanticscholar.org/paper/06f3e8eec1c737f448ee9c89cabb878f7dbcdefd
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Citations in the corpus
- Alternative diets for the pacific white shrimp Litopenaeus vannamei (2007, background): “Shrimp benefit from a wide range of organisms within the green water culture environment, including bacteria, phytoplankton, protists, rotifers and nematodes (Moss and Pruder, 1995; Velasco and Lawrence, 2000; Schuur, 2003; Decamp et al., 2003 ).”
- Performance of Pacific white shrimp Litopenaeus vannamei raised in biofloc systems with varying levels of light exposure (2013, background): “The ability of Pacific white shrimp to utilize natural productivity and its effect for enhancing shrimp growth is well documented (Burford et al., 2004; Decamp et al., 2003; Otoshi et al., 2011, 2001; Wasielesky et al., 2006).”