Intensive hatchery performance of the Pacific white shrimp in biofloc system

Lorenzo, Marco Antônio de; Schveitzer, Rodrigo; Santo, Carlos Manoel do Espírito; Candia, Efrayn Wilker Souza; Mouriño, José Luiz Pedreira; Legarda, Esmeralda Chamorro; Seiffert, Walter Quadros; Vieira, Felipe do Nascimento

doi:10.1016/j.aquaeng.2015.05.007

Cited by 19 publications

(9 citation statements)

References 34 publications

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“…In our analysis, we examined the effects of varying harvesting techniques in respect to frequency of harvesting and proportion of Citation: Cheal J, Chamrajnagar A, Fong X, Glance J (2017) A Model for Self-Sustaining Litopenaeus Vannamei Farm Alternatives. Fish Aqua J 8: 211. doi:10.4172/2150-3508.1000211 shrimp harvested on the aggregate yield of shrimp harvested [25][26][27][28]. The results of this analysis included a hypothetical optimal harvesting regimen, as well as a practical optimum.…”

Section: Discussionmentioning

confidence: 99%

A Model for Self-Sustaining Litopenaeus Vannamei Farm Alternatives

Cheal¹,

Chamrajnagar²,

Fong³

et al. 2017

Fish Aquac J

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We investigate a semi-contained, two-tank model for a Litopenaeus vannamei (White Pacific Shrimp) aquaculture farm. Our model simulates the possibility of a self-sustaining aquaculture system, with an interdependent triad of shrimp, algae, and bacteria. The two tanks are symmetric: the first containing developing shrimp through the hatchery and nursery phase and the second containing full grown shrimp through the grow-out phase. This system is modelled by six, first order differential equations. Using analytic and numeric techniques, we examine the dynamics and equilibria of this system as well as each of its individual components. This paper examines the effects of varying harvesting frequencies and magnitudes, and searches for an optimal harvesting strategy. Our analysis concluded that in the confines of our model, a technique of harvesting 81.5% of harvestable shrimp every 2 days provides a hypothetical optimal strategy. However, upon consideration of practical constraints, a harvesting strategy of 98% of harvestable shrimp every 10 days represents a real-world optimal harvesting strategy.

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Section: Discussionmentioning

confidence: 99%

A Model for Self-Sustaining Litopenaeus Vannamei Farm Alternatives

Cheal¹,

Chamrajnagar²,

Fong³

et al. 2017

Fish Aquac J

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“…According to related studies, the tanks were randomly divided into three groups by culture density: D200 (density was 200 shrimp larvae/L), D300 (density was 300 shrimp larvae/L), and D400 (density was 400 shrimp larvae/L) (De Lorenzo et al. 2015, 2016). The illumination time was controlled at 12 h light : 12 h dark to simulate the natural light rhythm.…”

Section: Methodsmentioning

confidence: 99%

“…The hatchery stage extends from the nauplius phase to the postlarva 5 (PL5) phase, which also includes the Zoea (Z) and Mysis (M) phases (Garcia and Olmos 2007; De Lorenzo et al. 2015). Shrimp in the nauplius to postlarva period stages have higher susceptibility to pathogens than those at the later stages (Duan et al.…”

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confidence: 99%

Stocking Density Effects on Pacific White Shrimp Litopenaeus vannamei Hatchery Performance in Algal‐Bacterial Biofloc Systems

et al. 2022

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The effects of stocking density of Pacific white shrimp Litopenaeus vannamei from hatchery stages nauplius 5 (N5) through postlarval 5 (PL5) were evaluated in algal–bacterial biofloc systems. Triplicate stocking densities of 200 (D200), 300 (D300), and 400 (D400) shrimp larvae/L were used. No water exchange or additional carbon source was conducted during the 14‐d experiment. Compared with other groups, the D400 stocking density had significantly higher concentrations of total ammonia nitrogen and nitrite‐nitrogen (0.55 and 0.66 mg/L, respectively). Nitrate‐nitrogen and total nitrogen continuously accumulated throughout the experiment, with no significant difference among the three groups. The chlorophyll‐a concentration, alkalinity, and pH of all three groups showed a downward trend in the later stage of the experiment. Shrimp larvae at the lowest stocking density had a higher survival during the rearing. Total Vibrio spp. count in the D200 group was lower than that of the other two but was not significantly different. In conclusion, we found that a stocking density of 200 shrimp larvae/L resulted in better survival and water quality conditions in the rearing systems tested.

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“…In terms of species selection, BFT is most suitable for those that (i) can tolerate a relatively higher levels of N-compounds suspended solids concentrations in the water; (ii) possess morphological adaptations to capture and/or filter the microbial particles; and (iii) support crowding conditions [ 45 ]. However, with R&D advances and emerging of hybrid techniques (e.g., BioRAS), the culture environment has been greatly improved with consistent water quality [ 46 ], allowing more broad species and culture phases to be explored in BFT (e.g., hatchery Litopenaeus vannamei [ 47 ], Oreochromis niloticus [ 48 ]).…”

Section: Understanding Biofloc Technologymentioning

confidence: 99%

Biofloc Technology (BFT) in Aquaculture: What Goes Right, What Goes Wrong? A Scientific-Based Snapshot

Khanjani,

Sharifinia,

Emerenciano

2024

Aquaculture Nutrition

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Aquaculture is a crucial industry that can help meet the increasing demand for aquatic protein products and provide employment opportunities in coastal areas and beyond. If incorrectly manage, traditional aquaculture methods can have negative impacts on the environment and natural resources, including water pollution and overuse of wild fish stocks as aquafeed ingredients. Biofloc technology (BFT) may offer a promising solution to some of these challenges by promoting a cleaner and sustainable production system. BFT converts waste into bioflocs, which serve as a natural food source for fish and shrimp within the culture system, reducing the need for external inputs, such as feed and chemicals. Moreover, BFT has the potential to improve yields and economic performance while promoting efficient resource utilization, such as water and energy. Despite its numerous advantages, BFT presents several challenges, such as high energy demand, high initial/running costs, waste (effluent, suspended solids, and sludge) management, opportunistic pathogens (vibrio) spread, and a lack of understanding of operational/aquatic/microbial dynamics. However, with further training, research, and innovation, these challenges can be overcome, and BFT can become a more widely understood and adopted technique, acting as an effective method for sustainable aquaculture. In summary, BFT offers a cleaner production option that promotes circularity practices while enhancing performance and economic benefits. This technique has the potential to address several challenges faced by the aquaculture industry while ensuring its continued growth and protecting the environment. A more broad BFT adoption can contribute to meeting the increasing demand for aquaculture products while reducing the industry’s negative impact on the environment and natural resources. In this context, this review provides an overview of the advantages and challenges of BFT and highlights key technical, biological, and economic aspects to optimize its application, promote further adoption, and overcome the current challenges.

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Intensive hatchery performance of the Pacific white shrimp in biofloc system

Cited by 19 publications

References 34 publications

A Model for Self-Sustaining Litopenaeus Vannamei Farm Alternatives

A Model for Self-Sustaining Litopenaeus Vannamei Farm Alternatives

Stocking Density Effects on Pacific White Shrimp Litopenaeus vannamei Hatchery Performance in Algal‐Bacterial Biofloc Systems

Biofloc Technology (BFT) in Aquaculture: What Goes Right, What Goes Wrong? A Scientific-Based Snapshot

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