Application of geophysical tools for evaluation of adequate ponds for Aquaculture

Araujo, Rafael Ferreira; Oliva, Pedro Andrés Chira; Gomes, K. Palheta; Correia, K. Almeida; Peña, Ruelas; Silva, R. Pereira da

doi:10.3997/2214-4609.202113068

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“…The GPR technique has been used to provide a reliable interpretation of features such as near-surface structures, hydrological processes, and the depth of the water table (e.g., [67][68][69][70][71][72][73]). Reference [74] used GPR to evaluate the conditions of a terrain earmarked for aquaculture in the Montenegro zone of Bragança (Pará, Brazil). These authors identified a sequence of normal faults with minor slips, a depression (35m in length at a depth of 2.8 m), and reflectors in the form of hyperboles of energy dispersal, which were assumed to represent the pipes used to install the fish ponds.…”

Section: Discussionmentioning

confidence: 99%

Application of the Ground Penetrating Radar (GPR) and Electromagnetic (EM34-3) Geophysical Tools and Sedimentology for the Evaluation of the Subsurface of Sites Earmarked for Aquaculture Ponds in the Amazon Region of Northern Brazil

Pena,

Oliva,

Abrunhosa

2023

Applied Sciences

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The present study evaluated the application of Ground Penetrating Radar and Electromagnetic Induction geophysical tools combined with sedimentology for the description of the subsurface of sites destined for the installation of ponds for an extensive freshwater fish farming system. Two areas with similar topographic characteristics (flat land near bodies of water) were investigated in the Amazon region of northern Brazil: Area 1—the future site of an aquaculture research center, and Area 2—an established fish farming operation. These tools performed well in the evaluation of the suitability of the terrain for the installation of aquaculture ponds. The application of these tools can, thus, be recommended for aquaculture projects, given that it provides advanced knowledge on the characteristics of the local soils, which is extremely important to guarantee the sustainability of any aquaculture operation. These data can help minimize the environmental impacts of the process, while maximizing the economic returns to the installation of an aquaculture operation.

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