This study estimated the survival rate and growth performance of Snubnose Pompano Trachinotus blochii larvae at different levels of salinity: 25, 33, 39, and 42‰. The experiments were conducted in triplicate, with 1,000 larvae per tank, and the control group was maintained at a salinity level of 42‰ at 28.3–31.0°C. At 18 h posthatch, the larvae were transferred directly to the four different salinities and their survival and growth rates were monitored. Our results indicated that the appropriate salinity for the survival of Snubnose Pompano larvae is 33–39‰, and 100% mortality was observed within 4 d posthatch at a salinity level of 42‰. Growth performance was not significantly different between the groups, except in the control group. After 21 d, strong cannibalism in the 25‰ groups was more evident than it was in the other groups. Overall, the results indicate that the larviculture of Snubnose Pompano is feasible at salinities of 33–39‰.

No abstract

This study estimated the survival, growth, fry production, and farming cost of Sabaki Tilapia Oreochromis spilurus broodstock in the following five outdoor production system types: arena, raceway, cage, concrete pond, and earth pond. The experiments were performed in triplicates in the year 2020 with 300 broodstocks per production system. Survival rate, growth performance, fry production, and farming cost were monitored. Our results indicated that Sabaki Tilapia fry production was feasible under high‐salinity conditions in the production system types studied; however, the systems showed significant differences in terms of survival rate, growth performance, and fry production. The arena and raceway systems were the most effective and exhibited the highest fry production.

Snubnose pompano (Trachinotus blochii), a species of economic importance in the Red Sea region, has shown aquaculture potential in Saudi Arabia. The unique environment of the Red Sea causes aquaculture systems to operate under high salinity (42‰-45‰), but there is a lack of information regarding the culture of snubnose pompano in these conditions. This study estimated the survival, growth, and farming costs of snubnose pompano in two production systems: indoor and outdoor tanks. The experiments were performed in triplicate in 2020-2021, with 100 sub-adult fish per production system. The survival rate, growth performance, natural sexual maturation, and farming costs were determined. The results indicated that snubnose pompano culture is feasible under high salinity conditions using the indoor production system considering the significant differences in survival rate and growth performance, although the outdoor system had lower feed and labor costs. After 550 days of rearing, the sub-adult fish weighed more than 1,100-1,200 g, and both males and females had sexually mature gonads. These results show that spawning can be induced in high salinity (42‰) conditions. This study was the first to successfully farm-raise snubnose pompano in Saudi Arabia. Our results can thus be used as a reference for related research and aquaculture development in the Middle East region.

This study's main objective was to estimate the survival rate and growth performance of grow-out Sabaki tilapia (Oreochromis spilurus, Günther, 1894) at different high stocking density levels: 50, 100, 150, 200 and 250 fish per m 3 . The experiments were conducted in triplicate and monitored for survival rate and growth performance for an experimental period of 16 weeks. Results indicated that the survival rate was significantly different in higher stocking density groups. The growth performance was not significantly different in each group. Overall, the results indicate that the Sabaki tilapia farming is feasible in high stocking density conditions.