Bianca de Oliveira Ramiro

Dr. Bianca de Oliveira Ramiro

Universidade Federal do Rio Grande (FURG), Rio Grande, Rio Grande do Sul, Brazil
orcid

Research Focus & Metrics

Academic Career Length

3Years (2024-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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15 December 2024 in Sustainability
Verified
Journal Article
Open access
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BRBianca de Oliveira Ramiro
Bianca de Oliveira Ramiro
Wilson WasieleskyWilson Wasielesky
Wilson Wasielesky
Otávio Augusto Lacerda Ferreira PimentelOtávio Augusto Lacerda Ferreira Pimentel
Otávio Augusto Lacerda Ferreira Pimentel
TSTaozhu Sun
Taozhu Sun
EMEthan McAlhaney
Ethan McAlhaney
Dariano KrummenauerDariano Krummenauer
Dariano Krummenauer
This study evaluated water quality, growth, and partial budget analysis (PBA) for Penaeus vannamei, comparing super-intensive Biofloc Technology (BFT) and Recirculating Aquaculture Systems (RAS). The 69-day trial used 100 L units with two treatments (RAS and BFT), each with three replicates. Shrimp were initially reared in a 30-day nursery to a weight of 0.10 ± 0.04 g and then stocked at 500 shrimp m−3. Biofloc growth in BFT was promoted by maintaining a C:N ratio of 15:1, adding dextrose when total ammonia nitrogen (TAN) reached 1 mg L−1. Probiotics (3 g m−3) were administered daily to both groups. TAN levels in BFT initially spiked but stabilized after 36 days. Vibrio abundance was initially higher in RAS, but by the end of the trial, it was higher in BFT. Final weight, weekly growth ratio, and yield were greater in BFT, whereas feed conversion ratio (FCR) and water use were higher in RAS. Survival rates were 83.33% in BFT and 88% in RAS. BFT achieved a superior net benefit/cost compared to RAS. Although RAS more effectively controlled nitrogenous compounds, BFT exhibited better growth performance, with higher final weights, lower FCR, and better Vibrio management. The partial budget analysis indicated an economic advantage for BFT, with a net positive benefit of $2270.09 when shifting from RAS to BFT due to lower operating costs and higher shrimp yield. Among these two sustainable production systems, BFT was more productive while utilizing less natural resources.

18 September 2025 in Aquaculture International
Verified
Journal Article
Closed access
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Dariano KrummenauerDariano Krummenauer
Dariano Krummenauer
BRBianca de Oliveira Ramiro
Bianca de Oliveira Ramiro
Flavia Banderó HofflingFlavia Banderó Hoffling
Flavia Banderó Hoffling
CMCaio Akira Miyai
Caio Akira Miyai
SUSteve Urick
Steve Urick
Otávio Augusto Lacerda Ferreira PimentelOtávio Augusto Lacerda Ferreira Pimentel
Otávio Augusto Lacerda Ferreira Pimentel