Jose Bakit
@ucn.cl
Aquaculture Department, Faculty of Marie Sciences
Universidad Católica del Norte
RESEARCH, TEACHING, or OTHER INTERESTS
Aquatic Science, Business, Management and Accounting, Political Science and International Relations, Education
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
José Bakit, Valeria Burgos-Fuster, Alejandro Abarca, Ivonne Etchepare, Juan Enrique Illanes, Sebastian Villasante, Enzo Bonilla, Rodrigo Rojas, Benjamin Dudouet, and Niris Cortés
Elsevier BV
Rodrigo Poblete and José Bakit
Springer Science and Business Media LLC
José Bakit, Andrés Hurtado, Raúl Márquez, and Sebastian Villasante
Frontiers Media SA
The expansion of neoliberalization of fisheries in developing countries has been largely driven by political economic decisions. Artisanal fisheries and aquaculture have not been exempt from these privatization measures, the implementation of deregulation measures in the fisheries sector, and commoditization strategies oriented mainly to exports. However, little research has been done about these issues jointly in South America. Therefore, the adoption of these measures and the adaptation and transformation of artisanal fishermen to entrepreneurs were studied in the scallop (Argopecten purpuratus) fishery/aquaculture in Tongoy Bay, Chile. We use qualitative research and an analysis of historical archives to describe a series of political-economic changes, stages, and processes involved in the transformation of the sector. The analysis focuses on conflicts, resistance practices, and value regimes between fishers and farmers to explore the different moral economies at play. Our results show that (a) changes in moral economies are neither automatic nor unidirectional; (b) the State, through its economic policy, technological development institutions, and technology transfer actions, does not directly generate expected results; (c) artisanal fishers who have become entrepreneurs understand and justify competitiveness (or lack of it) because some are more entrepreneurial than others; (d) despite the adoption of neoliberal guidelines, aspects of a more traditional moral economy remain, such as the role of family units in the configuration of enterprises; and, finally, (e) artisanal fishers have moved from a traditional moral economy based on collective and historical rights to a neoliberal moral economy based on the individual and his or her capacity for self-improvement, entrepreneurship, and efficient work management.
José Bakit, Gonzalo Álvarez, Patricio A. Díaz, Eduardo Uribe, Rodrigo Sfeir, Sebastian Villasante, Tomas Gabriel Bas, Germán Lira, Hernán Pérez, Andrés Hurtado,et al.
MDPI AG
The boom-and-bust trajectory of the Argopecten purpuratus industry in Chile shows the progression from resource extraction (fishing) to production (aquaculture). This paper analyses the effects of environmental, economic, and scientific–technological factors. The influence of each factor on scallop production in Chile was reviewed for the period between the 1980s and 2020. The evaluation of the effects allows the visualisation of the industry’s productive evolution and reveals the current challenges. The occurrence of abrupt environmental disturbances, commercialisation under imperfect market configurations, and public and private efforts in scientific and technological advances have acted favourably on scallop production. However, an industry mainly focused on prices and high production volumes did not devote much effort to develop low-cost climate-resilient technologies. Today, economic challenges must be addressed by helping to reduce production costs and add economic value to products and by-products. Our results show that the industry must focus on low-cost technologies, the use of renewable energy, and the circularity of its processes. The environment ensures the capture of natural seeds and their adaptation to climate change. These challenges must not lose sight of the emerging effects of the COVID-19 pandemic.
Begoña Peceño, José Bakit, Niris Cortes, Bernabé Alonso-Fariñas, Enzo Bonilla, and Carlos Leiva
MDPI AG
The construction industry’s high demand for natural resources, combined with the waste generated by agriculture, creates an opportunity for the circular economy. This experiment used the CaCO3 found in scallop shells as an ingredient for the manufacture of fire-resistant materials, replacing gypsum in compositions of 40% and 50% by weight. The mechanical compressive strength was estimated for both freeze-thaw cycles and acid and sulfate attacks. The cost of disposing of scallop shell waste in landfills, savings from substitution, and the payback period relative to the amount of production were determined. The compressive strength of the materials decreased by 80% when subjected to freeze-thaw cycles and sulfate attack. In response to acid attack, they showed a 100% increase in strength during the first three weeks and a decrease thereafter. The savings amounted to $46.36 (22.4%) for 40% replacement and $58.93 (28.4%) for 50%. Respectively, return on investment is achieved at 800- and 630-per-metric ton produced. The difference between the costs of waste disposal (in aquaculture) and the potential savings from using CaCO3 as a raw material (in construction) creates an opportunity for commercialization between the two industries, serves as a reference for decision-makers, and complies with circular economy principles, reducing both inputs of raw materials and outputs of waste.
Begoña Peceño Capilla, Laia Lluch Molins, Enzo Bonilla Pérez, José Bakit, and Niris Cortés Pizarro
Omnia Publisher SL
In 2020, in the context of the COVID-19 pandemic, it is of interest to understand how students perceived the access, use, and utility of digital tools in online teaching. This study provides an insight into the needs of students in adjusting to online teaching.This study presents the methodological design of the course “Industrial Hygiene I,” part of a technology-based engineering bachelor’s degree from Universidad Católica del Norte (Chile). Once the theoretical framework was established, three surveys were designed throughout the course to measure students’ perceptions of the access, use, and utility of digital tools used in online teaching during the pandemic. Thirty-five students participated in this quantitative study.Following a data analysis, it was observed that 46% of students use their cell phones to access virtual classes and more than 50% are dissatisfied with the internet connection; therefore, it was necessary to adapt the learning methodology. After that, more than 50% of the students said that they preferred a flipped classroom over traditional methodology. In addition, the quality of the course was not affected by using the internet (60%), and the methodology generates advantages in terms of learning (72%).These findings have several implications in both the design of different subjects in the engineering degree and the practice of different learning methods. Future hybrid teaching designs require taking up the challenges of both improving technology-supported teaching and assessing competence in the same context.
Rodrigo Poblete, Ernesto Cortes, José Bakit, and Yolanda Luna‐Galiano
Wiley
AbstractThis study focuses on the removal of organic pollutants present in landfill leachate (LL) using an adsorption process with activated carbon (AC) obtained from fish scales, and subsequently evaluates the reduction of toxicity in the wastewater obtained from the process. The AC obtained is a mesoporous material, with a cumulative pore area of 1.57 m2 g−1, Brunauer–Emmett–Teller (BET) of 1.8329 m2 g−1 and adsorption average pore width of 12.79833 nm. The maximum removal of pollutants was achieved at natural pH (6.71) of the LL, with a load of 3 g L−1, resulting in 60.1% colour and 37.3% chemical oxygen demand (COD). The rate of COD removal per g of AC increase had a maximum value of 5.6 at pH 10 when passing from 0.5 to 1 g AC. The lowest rate of 0.6 occurred for the same pH when it passed from 1 to 2 g AC. At pH 3 the second lowest rate of 3.3 was observed when passing from 2 to 3 g AC. At pH 3 there was always an increase in the rate as more AC was added. Conversely, at natural pH 6.71 the rate tended to decrease. At pH 10 the rate first decreased and then increased. At acidic pH, because it is the one with the lowest COD removal, it would be expected that by adding more AC the rate would continue to increase as there are easily accessible sites still available. Langmuir isotherms fitted adequately with the experimental data, providing an R2 of 0.9657, which is consistent with a monolayer adsorption pattern. The LL before the adsorption process had an inhibition ratio of 20.4%, due to the fact that leachate can be toxic because of the presence of hazardous organic compounds. After adsorption processes at pH 6.71, the inhibition ratios were 16.9%, 13.8%, 12.2% and 10.9% at AC loads of 0.5, 1, 2 and 3 g L−1, respectively, due to decreasing COD and colour of the LL over the course of the treatment. It was observed that the reduction of the inhibition ratio was greater at higher loads of adsorbent. © 2020 Society of Chemical Industry
Rodrigo Poblete, Ernesto Cortes, José Bakit, and Yolanda Luna-Galiano
Elsevier BV
Rodrigo Poblete, Ernesto Cortes, Juan Macchiavello, and José Bakit
Elsevier BV