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(Español) Estimating carbon and plastic emissions of seafood products in trade routes between the European Union and South America

Author(s): Joan Sanchez Matos, Ian Vázquez Rowe, Ramzy Kahhat Abedrabbo

(Español) International trade in fishery and aquaculture products is an important means of providing feed and food for different countries around the world. However, it is also responsible for multiple environmental impacts, namely climate change, as well as novel environmental aspects, such as plastic emissions, through its entire life cycle. In fact, plastic emissions are gaining increasing attention due to their presence in a variety of environmental compartments, especially in marine ecosystems. Hence, this study estimated the carbon footprint and the plastic emissions into the oceans from fishing and aquaculture trade between the European Union (EU) and South America (SA), based on a life cycle perspective. The results reveal that there is an imbalance both in terms of mass and carbon emissions between the import and export flows. SA exports eight-fold more aquaculture and fishing products (877,000 t) than those it imports (112,000 t), emitting twelve-fold more greenhouse gasses (2.9 million metric tons CO2eq.) than the EU (242,000 t CO2eq.), demonstrating the existence of seafood trade imbalances between the two regions. The entire trading releases into the ocean at least 263 t of macroplastic, and 45 t of microplastics from the fishing phase. This suggests the importance of the environmental impacts of the trade flows of aquaculture and fishing products, and the urgent need to decrease carbon emissions and provide more sustainable alternatives to plastic materials in fishing gear.

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Microplastics in Coastal Aquaculture Systems: Development of Regulatory Frameworks, Practices and Mitigation Efforts in APEC Economies

Author(s): Ian Vázquez Rowe

The White Paper aims to take stock of existing policy and regulatory frameworks regarding the prevention and mitigation of microplastic in coastal aquaculture input chains in APEC region. A desk study and expert workshops involving 42 contributors from 12 APEC economies were carried to collect the required data and information to develop the paper. This White Paper found that there are almost negligible regulatory frameworks to monitor and prevent microplastics in APEC’s coastal aquaculture input chains. Public discourses and research related to the issues are also limited. This White Paper recommends the continuation of public discourses and research activities to support the development of a comprehensive policy related to microplastic issues in coastal aquaculture. The comprehensive policy could be used by APEC economies to develop their own regulatory measures to ensure and promote the safety of seafood products from coastal aquaculture of APEC region.

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(Español) A machine learning approach to understand how accessibility influences alluvial gold mining expansion in the Peruvian Amazon

Author(s): Gustavo Larrea Gallegos, Ramzy Kahhat Abedrabbo, Ian Vázquez Rowe, Eduardo Parodi Gonzales Prada

(Español) Alluvial small-scale gold mining (ASGM) mining in the Amazon is expanding fiercely, generating severe environmental degradation, which includes the fast disappearance of primary forests in a highly biodiverse area of the world. Different factors motivate the growth of mining in the areas and understanding this expansion is important to safeguard protected areas or implement strategies to mitigate the related social and environmental impacts. Thus, the goal of this study is to apply machine learning techniques to explore gold mining expansion in Madre de Dios, in the Peruvian Amazon, and to identify possible future hotspots of these activities. Using an unsupervised learning algorithm and a random forest classification model, past expansion trends were analyzed and an explicit geo-spatial model was built. Results demonstrate that proximity to infrastructure is not always indicative of high mining probability. In fact, when analyzing the spatial distribution of model accuracy, it is observed that model performance decreases in clusters where accessibility and mining activity showed opposite trends. In contrast, the models yield accuracies greater than 0.9 when accessibility-related variables stand out as the most important. The model, which is flexible and reproducible, demonstrates to be useful to enhance decision making when implementing geo-spatial policies to address the problem of ASGM expansion in the Amazon.

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(Español) Ocean-based sources of plastic pollution: An overview of the main marine activities in the Peruvian EEZ

Author(s): (Español) Alejandro Deville del Águila, Ian Vázquez Rowe, Diana Ita Nagy, Ramzy Kahhat Abedrabbo

(Español) Las actividades marinas son una fuente crítica de desechos plásticos en el océano. Esto es particularmente importante en países con una industria pesquera competitiva, como Perú. Por lo tanto, este estudio tuvo como objetivo identificar y cuantificar los principales flujos de desechos plásticos que se acumulan en el océano desde fuentes oceánicas dentro de la Zona Económica Exclusiva Peruana. Se elaboró ​​un análisis de flujo de materiales para analizar el stock de plástico y su liberación al océano por parte de un conjunto de flotas peruanas, incluyendo la industria pesquera, buques mercantes, cruceros y lanchas. Los resultados muestran que en 2018 ingresaron al océano entre 2715 y 5584 toneladas métricas de desechos plásticos. La flota pesquera fue la más contaminante, representando aproximadamente el 97 % del total. Además, la pérdida de artes de pesca representó la mayor contribución de una sola actividad, aunque otras fuentes, como los envases de plástico y las emisiones de antiincrustantes, tienen el potencial de convertirse en grandes fuentes de contaminación plástica marina.

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(Español) Transitioning to sustainable mobility in Lima, Peru. Are e-scooter sharing initiatives part of the problem or the solution?

Author(s): (Español) Mario Echeverría-Su, Esteffany Huamanraime-Maquin, Félix Israel Cabrera, Ian Vázquez-Rowe

(Español) Micro-mobility has increased in urban environments to reduce dependence on private vehicles. While electric micro- mobility alternatives are supposed to reduce environmental impacts, certain studies suggest that this can depend on the transport mode they substitute. In parallel, despite growing efforts, urban areas in developing and emerging economies struggle to implement sustainable mobility programs at a city-wide level. In March 2019 the first dockless e-scooter rental service appeared in the city of Lima, Peru. Although the social and environmental impacts of dockless e-scooters have been the center of multiple studies, these are mostly based in North America and Europe. Therefore, the main objective of the current study was to use Life Cycle Assessment (LCA) to address the environmental profile of e-scooter use in districts of central Lima. All stages of the life-cycle of e-scooters were modelled considering local conditions, from manufacture to end-of-life. A sensitivity analysis was conducted to account for the variability in environmental impact based on five parameters: lifespan, battery range, remaining battery charge, collection dis- tance and collection vehicle. Results show that over two thirds of impacts are linked to manufacturing thanks to the low-carbon profile of electricity production in Peru, which lowers the burdens in the use phase, making e-scooter use competitive in the local market as compared to electric bikes or motorcycles. However, replacement trends show that net environmental gains are not always obtained. Poor maintenance and derived lifespan or battery range are important sources of variability for the impact categories assessed. Although e-scooters show potential for their im- plementation in developing cities with similar characteristics to Lima, we recommend that site-specific studies should be conducted to foster adaptive management strategies which take into account the means of transport being substituted by e-scooters.

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(Español) Developing a methodology to quantify mismanaged plastic waste entering the ocean in coastal countries

Author(s): Diana Ita Nagy, Ian Vázquez Rowe, Ramzy Kahhat Abedrabbo

(Español) Marine plastic accumulation has gained international attention in recent years. Sources, pathways, and environmental impacts are being currently studied to understand the complex interactions during waste, especially plastic, transportation to the sea. Rivers have been identified as debris corridors allowing transportation of mismanaged waste. However, there is also evidence of waste accumulation in river basins, suggesting they can also act as sinks. Thus, assuming a uniform and continuous transportation of waste through rivers towards the ocean may signify an oversimplification. This study proposes a methodology to estimate plastic release to the ocean, considering a more detailed characterization of each river basin, including natural attributes and manmade constructions that may act as barriers or boosters for this release. The methodology is exemplified using a case study for the Region of Piura, Peru, and estimating a range of 4.2 to 13.9 kg/person/year of plastic waste reaching the Pacific coast during 2018. These results, when compared with the existing literature, demonstrate more conservative estimations. This methodology is presented as a useful tool that can be easily applied to develop more accurate mismanaged waste dissipation along different compartments.

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(Español) Industrial ecology for the oceans

Author(s): (Español) Ian Vázquez-Rowe, Robert Parker, Helen Hamilton, Huan Liu

(Español) Human interaction with ocean resources has historically been challenging due to the difficulties that arise when a terrestrial species aims at becoming successful in a marine environment. Shipwrecks, for instance, have doomed coastal communities for centuries, and even today fishing is one of the deadliest sectors in the labor force. Similarly, human-induced marine environmental catastrophes, such as oil spills for instance (Trevors & Saier, 2010), have commonly been laborious to clean up due to the inherent difficulty of humans performing beyond terrestrial ecosystems.

Continued human population and economic growth since the beginning of the Industrial Revolution have exacerbated the need of human societies for mineral ores, fossil fuels, and other sources of energy, water, and food. This has led to the occupation of vast areas of terrestrial land, to the extent that humans now have a noticeable footprint in all the world's terrestrial biomes. In the world's oceans this same pattern has occurred at a slower pace throughout the decades, with fishing activities becoming more efficient with the arrival of steam vessels in the 1880s, diesel in the 20th century (Engelhard, 2008), and the incorporation of sophisticated detection systems turning ancestral coastal fishing activities into highly industrialized systems that land millions of metric tons of fish and other marine species annually (Fornshell & Tesei, 2013). Similarly, oil rigs spread quickly in the world's ocean to provide additional fossil fuel supplies for thirsty growing economies (Nyman, 2015), marine fright soared with the process of globalization (Mersin et al., 2019) with thousands of cargo vessels swarming the seas and, more recently, seabed mining has appeared in the public and private agenda as an alternative and lucrative sector to maintain the supply of metal ores in the technosphere (Levin et al., 2020).

This increased pressure of human activities on the ocean and its resources has translated into a series of environmental impacts that have affected marine conservation (Knowlton, 2021) and degraded vast areas of the ocean. However, it must be noted that not all environmental impacts affecting the ocean are located in the ocean itself, but rather are created by terrestrial activities. In this sense, nutrient loading linked to wastewater treatment plants, agriculture, and cattle ranching are responsible for vast dead zones generated in multiple coastal zones across the globe (Diaz & Rosenberg, 2008), and it is also mainly terrestrial activities that are responsible for the accumulation of plastic waste in the world's oceans (Beaumont et al., 2019).

Interestingly, many of these environmental impacts have only been analyzed in detail in recent years. For instance, marine plastic accumulation due to anthropogenic activities and its impacts on ecosystems and human health have only become a relevant field of research in the past decade after the Call for Action “Our Ocean, Our Future” of the Ocean Conference, organized by the United Nations in New York on June 5−9, 2017 (Sonnemann & Valdivia, 2017). In this context, although the focus of oceans-based research has traditionally been narrowly focused, researchers are recognizing the value of a wider, systems-based perspective with the aim of linking industrial uses with the environmental and resource impacts they engender. We argue that the field of industrial ecology is well-suited to fill that gap, as it is interdisciplinary in nature, rapidly growing, and has systems analysis at its core.

The current special issue of the Journal of Industrial Ecology, entitled “Industrial Ecology for the Oceans,” explores all of the above-mentioned issues with the ultimate objective of catalyzing and compiling novel research regarding the use of industrial ecology in the world's oceans. A total of 24 articles were accepted for publication in the current special issue. These can be divided into five main topics: (i) fishing and aquaculture; (ii) shipping; (iii) ocean acidification; (iv) marine plastics; (v) nutrient flows; and (vi) seabed mining, and are described below.

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(Español) Book of Proceedings LCA Foods 2022

Author(s): Ian Vázquez Rowe, Ramzy Kahhat Abedrabbo, Eizo Muñoz Sovero

(Español) The 13th International Conference on LCA of Food, which was held on October 11-14 2022, took place for the first time in Lima, Peru, and the theme of the conference topics was: The Role of Emerging Economies in Global Food Security.

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