The effect of temperature and pH on the growth and physiological response of juvenile yellowtail kingfish Seriola lalandi in recirculating aquaculture systems

Abstract

ÔØ Å ÒÙ× Ö ÔØPlease cite this article as: Abbink, Wout, Blanco Garcia, Ainhoa, Roques, Jonathan A.C., Partridge, Gavin J., Kloet, Kees, Schneider, Oliver, The effect of temperature and pH on the growth and physiological response of juvenile yellowtail kingfish Seriola lalandi in recirculating aquaculture systems, Aquaculture (2011), doi: 10.1016/j.aquaculture.2011.11.043 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPT A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPT2 AbstractA search for a viable new fish species for culture in recirculating aquaculture systems (RAS) in the Netherlands identified yellowtail kingfish Seriola lalandi as having excellent potential.To assist in determining the most appropriate water quality conditions for this species in RAS, the effect of water temperature (21, 23.5, 25, 26.5 and 29 ˚C) and pH (6.58, 7.16 and 7.85) were tested in two separate experiments. Growth performance, feed conversion, stressphysiological and metabolic parameters were assessed in juvenile yellowtail kingfish grown in pilot-scale RAS. Growth was optimised at a water temperature of 26.5 °C, in combination with maximum food intake and optimum food conversion ratio (FCR). Increasing temperature from 21 °C to 26.5 °C resulted in a 54 % increase in the fish's final weight after 30 days. A water pH of 6.58 resulted in mortality and inhibited both growth and FCR due to physiological disruptions to which the fish could not adapt.

<b>Nile tilapia culture under feeding restriction in bioflocs and bioflocs plus periphyton tanks

“…It is probable that more CO 2 has been released due to a greater bacteria activity in BF and BP tanks (Azim, Little, & Bron, 2008). BF and BP tanks require a stricter monitoring to avoid acidosis caused by CO 2 (Abbink et al, 2011). Dissolved oxygen (DO 2 ) did not differ among treatments (p > 0.05).…”

Gonadosomatic index and some hematological parameters in African catfish Clarias gariepinus (Burchell, 1822) as affected by feed type and temperature level

“…Similar results were found by 49 who stated that the favorable temperature of the Clarias is between 25 -30 ℃, he also reported that fish would grow faster with the increase in temperature to a certain level, then growth will reduce with further rises in temperature. The poor growth performance at a temperature higher than the optimum was also reported for Japanese yellowtail by 47 as a result of a significant decrease in food intake coupled with an increased demand for energy at such higher temperatures.…”

“…The results revealed that fishmeal-based protein with TemperatureT2(28℃) gave the higher count of (MCV) while peameal-based diet gave the lowest number of (MCV) for C. gariepinus. Effect of temperature on fish growth 47 stated that the key (abiotic) factor that affecting fish growth is water temperature. In this study, the growth rate of C. gariepinus was significantly higher at the temperature of 28℃ as reported by 48 .The temperature of 28 ℃, was found to be optimum for the growth of C. gariepinus while the lowest growth performance was shown at temperature 30℃.…”

<b>Association between nocturnal and diurnal aeration in Nile tilapia rearing tanks

“…The lowest concentrations of free CO 2 in water were observed in the nocturnal + diurnal aerated tanks, which differed significantly from the nonaerated tanks (p < 0.05; Table 1). The nocturnal aeration of water is prone to remove significant amounts of CO 2 from the water because the highest levels of CO 2 occur overnight (Abbink et al, 2012).…”