Abstract (Introduction): Bycatch and discards are a socio-environmental concern that threatens the sustainability of marine life and fishing grounds. Approaches to this problem have focused on biological and/or ecological aspects. We considered it necessary to explore the problem from the social dimension and for this purpose we explored social representations. (Objective): The aim of this study is to explore the social representations of bycatch and discards in a group of businessmen and workers in the capture stage of the Argentine industrial fishing activity. We ask how they evaluate bycatch and fishing discards, what are their causes and if they observe possible solutions. (Methodology): Within the framework of a project of the Federal Fishing Council, we conducted focus groups with businessmen, business chambers, SOMU workers and captains of the industrial fishing activity. (Results): The results of the focus groups conducted in 2021 reveal three main causes of this problem. First, the lack of reliable data on actual discard levels raises concerns about sustainability and overfishing. Second, the low utilization of selectivity devices is attributed to their operational inefficiency and possible labour barriers. Finally, economic and organizational pressures, such as company profitability and workers’ salaries, justify the discard of non-target species, exacerbating the problem. (Conclusions): The work contributes to an understanding of the main reasons for bycatch and discards, which is essential to advance solutions. We understand that solutions are not simple and involve a sincere debate among stakeholders.

Resumen (Introducción): Las capturas incidentales y los descartes pesqueros son una preocupación socioambiental que amenaza la sostenibilidad de la vida marina y de los caladeros. Los abordajes a esta problemática estuvieron centrados en aspectos biológicos y ecológicos. Consideramos necesario explorar la problemática desde la dimensión social y para ello, exploramos las representaciones sociales. (Objetivo): El objetivo de este estudio fue explorar las representaciones sobre capturas incidentales y descartes pesqueros en un grupo de empresarios y trabajadores de la etapa de captura de la actividad pesquera industrial argentina, específicamente, cómo evalúan este problema, sus causas y posibles soluciones. (Metodología): En el marco de un proyecto del Consejo Federal Pesquero, se realizaron grupos focales con seis cámaras empresariales y personal jerárquico de empresas asociadas, así como trabajadores del SOMU y capitanes que operan en alta mar. (Resultados): Los resultados de los grupos focales realizados en 2021 revelaron tres principales causas de dicha problemática. Primero, la falta de datos confiables sobre los niveles reales de descarte genera preocupaciones sobre la sostenibilidad y la sobreexplotación. Segundo, la escasa utilización de dispositivos de selectividad se atribuye a su ineficacia operativa y a posibles barreras laborales. Finalmente, las presiones económicas y organizacionales, como la rentabilidad de las empresas y los salarios de los trabajadores, justifican el descarte, exacerbando el problema. (Conclusiones): El trabajo aporta a un entendimiento sobre las razones de la captura incidental y los descarte, esencial para avanzar en soluciones. Entendemos que las soluciones no son simples e implican un sincero debate entre actores.

RESUMO: Este estudo explorou o uso exclusivo do ultrassom (US) para extrair proteínas das espinhas dorsais da carpa-capim (Ctenopharyngodon idella) em baixas temperaturas e examinou seu impacto na hidrofobicidade, solubilidade, perfil eletroforético e níveis de sulfidrilas. As espinhas dorsais foram tratadas com 35 e 130 kHz por 20, 30 e 40 minutos a 14 ºC, resultando em duas frações de proteínas: sólida (TPS) e líquida (TPL). O US aumentou o rendimento em comparação com a fração não sonificada. TPL (35 kHz) apresentou uma redução de 16% nos níveis totais e livres de sulfidrila e um aumento de 25% na hidrofobicidade. O US induziu alterações na conformação proteica e na intensidade das bandas, especialmente entre 25 e 100 kDa para TPL a 130 kHz e abaixo de 30 kDa para TPS a 35 kHz. Este estudo demonstrou a eficácia do US na extração e na modificação de algumas propriedades das proteínas de subprodutos de peixe, facilitando assim seu emprego no desenvolvimento de produtos alimentícios inovadores. RESUMO (US carpacapim carpa capim Ctenopharyngodon idella hidrofobicidade solubilidade sulfidrilas 3 13 20 4 1 ºC (TPS TPL. . (TPL) sonificada (3 16 bandas 2 10 peixe inovadores (TPL (

ABSTRACT: This study explored the use only of ultrasound (US) for extracting proteins from grass carp (Ctenopharyngodon idella) backbones at low temperature and examined its impact on hydrophobicity, solubility, electrophoretic profile, and sulfhydryl levels. Backbones were treated with 35 and 130 kHz for 20, 30, and 40 minutes at 14 ºC, resulting in two protein fractions: solid (TPS) and liquid (TPL). US increased yield compared to the non-sonicated fraction. TPL (35 kHz) exhibited a 16% reduction in total and free sulfhydryl levels and a 25% increase in hydrophobicity. US induced protein conformation and band intensity alterations, particularly between 25 to 100 kDa for TPL at 130 kHz and below 30 kDa for TPS at 35 kHz. This study demonstrated the efficacy of US for protein extraction from fish by-products and its capacity to modify protein characteristics, facilitating the development of innovative food products. ABSTRACT (US Ctenopharyngodon idella hydrophobicity solubility profile 3 13 20 4 1 ºC fractions (TPS TPL. . (TPL) nonsonicated non sonicated fraction (3 16 alterations 2 10 byproducts by products characteristics (TPL (

Abstract This research manages as a central axis the Territorial Development in the northern zone of the State of Baja California Sur, specifically in the Vizcaíno Valley, located in the municipality of Mulegé. In the study area, a situation of economic and territorial backwardness has been generated as a result of dependence on a priority economic sector that is not articulated with the rest of the sectors. In this sense, the potential for integration between sectors is identified, thus presenting a proposal for a structure for the integration of local productive sectors, being these the most relevant, such as the primary one (livestock, fishing, and mining), and the tertiary sector, which is complementary. The economic sectors are described independently, later, through an analysis of three pillars of integration: planned, intersectoral and territorial, a crossover strategy is proposed where, through said relationship, complementary intersectoral activities are generated, with a view to a territorial productive chain.

Resumen La presente investigación maneja como eje central el Desarrollo Territorial en la zona norte del Estado de Baja California Sur, específicamente en el Valle de Vizcaíno, situado en el municipio de Mulegé. En el área de estudio, se ha generado una situación de rezago económico y territorial como efecto de la dependencia a un prioritario sector económico que no se encuentra articulado con el resto de los sectores. En este sentido, se identifica el potencial de integración entre sectores, presentando así una propuesta de estructura para integración de sectores productivos locales, siendo estos el de mayor relevancia como es el primario (ganadería, pesca y minería), y el que figura de manera complementaria, el terciario. Se describen de manera independiente los sectores económicos, posterior, mediante un análisis de tres pilares de integración: planificada, intersectorial y territorial, se propone una estrategia cruzada donde, mediante dicha relación, se generen actividades intersectoriales complementarias, con miras un encadenamiento productivo territorial.

ABSTRACT This article describes the actors involved in the recommendation of the Peruvian anchoveta catch quota prior to the fishing seasons of each region (north-central and south), as well as the bias associated with it. The data on biomasses, quotas, and landings correspond to the 2000-2022 period, while the recommendations for the total quota correspond to 2019-2022. For the north-central region, Imarpe recommends Produce an exploitation rate lower than or equal to 0.35. This is done through a decision table for four probable oceanographic environment scenarios, considering a remaining biomass to ensure sustainability. The compliance of Peruvian anchoveta catches quotas in the first fishing seasons has been higher than 90 %, while in the second fishing seasons, catches have even been less than 50 %, as in the case of: 2001, 2019, 2010 and 2017. Between 2019 and 2022, Produce opted for the following: i) with a quota lower than that recommended in the decision table (I-2021, II-2020, I-2019) and ii) with a quota higher than that recommended in the biomass of the decision table (I-2022, II-2021, II-2022, II-2019 and I-2020). The observation error is lower (0.10) for the summer surveys and higher (0.15) for the winter-spring (spawning biomass and hydroacoustic surveys).

RESUMEN Este artículo describe los actores que intervienen en la recomendación de la cuota de captura de anchoveta, previo a las temporadas de pesca para cada región (norte-centro y sur), así como el sesgo asociado a la misma. Los datos de las biomasas, cuotas y desembarques corresponden al período 2000-2022, mientras que las recomendaciones para la cuota total corresponden a 2019-2022. Para la región norte-centro, el Imarpe recomienda a Produce una tasa de explotación menor o igual a 0.35 mediante una tabla de decisión para cuatros escenarios probables de ambiente oceanográfico, considerando una biomasa remanente para asegurar su sostenibilidad. El cumplimiento de las cuotas de capturas de anchoveta en las primeras temporadas de pesca ha sido mayor a 90 %, mientras que en las segundas temporadas de pesca se han capturado inclusive menores a 50 %, como es el caso del: 2001, 2019, 2010 y 2017. Entre 2019 y 2022, Produce optó lo siguiente: i) con cuota menor a la recomendada en la tabla de decisión (I-2021, II-2020, I-2019) y ii) con cuota mayor a la recomendada en la biomasa a la tabla de decisión (I-2022, II-2021, II-2022, II-2019 y I-2020). El error de observación es menor (0.10) en los cruceros de verano y mayor (0.15) en invierno-primavera (cruceros de biomasa desovante e hidroacústicos).

Resumen (Objetivo). Se evaluó el manglar de Chacarita en el Pacífico Central de Costa Rica, a través de la composición florística y las poblaciones de moluscos asociados de interés comercial, con el fin de proponer actividades de aprovechamiento sustentables en el manglar. (Metodología). Mensualmente y durante un año, se realizaron visitas al área de estudio, con el propósito de establecer una base florística de árboles de mangle y medir el almacenamiento de carbono en el lugar, además, de recolectar moluscos bivalvos para analizar el estado de las poblaciones, con base en las abundancias de organismos hallados y otras características como las longitudes y la masa de estos. En los mangles, se obtuvo el diámetro de la altura de pecho (DAP en cm), la altura (m), el índice de valor de importancia (IVI) y las reservas de carbono (Mg C·ha-1). En cuanto a los moluscos, se examinaron cuatro especies de interés comercial, evaluando la longitud (cm), la masa (g) y el índice gonadosomático. Finalmente, se realizaron valoraciones económicas de los datos obtenidos en el manglar, del turismo e información histórica de pesca para el acopio de Chacarita. (Resultados). Se hallaron cinco especies de mangles, Rhizophora mangle, Rizophora racemosa, Laguncularia racemosa, Avicennia germinans y Pelliciera rhizophorae; P. rhizophorae fue la de mayor índice de valor de importancia. Se obtuvo un almacenamiento de carbono equivalente a 78.49 Mg C·ha-1. Se contabilizaron 357 organismos, de los cuales el 18 % correspondió a Anadara similis, 37.5 % a Anadara tuberculosa, 41.46 % a Leukoma spp. y 3.08 % a Mytella guyanensis. Tomando en cuenta el valor económico de las reservas de carbono y los moluscos bivalvos presentes en los muestreos, se obtuvieron valoraciones económicas de 9812.63 USD·ha-1 y 28 USD·ha-1, respectivamente. (Conclusiones). Las bajas densidades poblacionales de moluscos, especialmente del género Anadara, hacen necesario establecer medidas de gestión que permitan recuperar las poblaciones de estos. La presente investigación propone actividades de aprovechamiento sustentables, como turismo comunitario con fines educativos y culturales.

Resumo (Objetivo). O mangue de Chacarita, no Pacífico Central da Costa Rica, foi avaliado por meio da composição florística e das populações de moluscos associados de interesse comercial, com o objetivo de propor atividades de uso sustentável no mangue. (Metodologia). Foram feitas visitas mensais à área de estudo durante um ano para estabelecer uma base florística de árvores do mangue e medir o armazenamento de carbono no local, bem como para coletar moluscos bivalves para analisar o status das populações, com base na abundância de organismos encontrados e em outras características, como comprimento e massa de tais organismos. Nos manguezais, foram obtidos o diâmetro à altura do peito (DAP em cm), a altura (m), o índice de valor de importância (IVI) e as reservas de carbono (Mg C-ha-1). No que diz respeito aos moluscos, foram examinadas quatro espécies de interesse comercial., avaliando o comprimento (cm), a massa (g) e o índice gonadossomático. Por fim, foram feitas avaliações econômicas de dados de mangue, turismo e informações históricas de pesca para a coleção Chacarita. (Resultados). Foram encontradas cinco espécies de mangue, Rhizophora mangle, Rizophora racemosa, Laguncularia racemosa, Avicennia germinans e Pelliciera rhizophorae; a P. rhizophorae apresentou o índice de valor de importância mais alto. Foi obtido um armazenamento de carbono equivalente a 78.49 Mg C-ha-1. Foram calculados um total de 357 organismos, dos quais 18% correspondeu a Anadara similis, 37.5% Anadara tuberculosa, 41.46% Leukoma spp. e 3.08% Mytella guyanensis. Levando em conta o valor econômico das reservas de carbono e dos moluscos bivalves presentes nas amostras, foram obtidas avaliações econômicas de US$ 9812.63 ha-1 e US$ 28 ha-1, respectivamente. (Conclusões). As baixas densidades populacionais de moluscos, especialmente do gênero Anadara tornam necessário o estabelecimento de medidas de manejo para permitir a recuperação dessas populações. Esta pesquisa propõe atividades de uso sustentável, como o turismo comunitário para fins educacionais e culturais.

Abstract (Objective). The floristic composition and populations of associated molluscs of commercial interest of the Chacarita mangrove forest on the Central Pacific of Costa Rica were evaluated to guide proposals for sustainable exploitation activities in the mangrove forest. (Methodology). Monthly visits to the study area were conducted for one year to establish a floristic baseline of mangrove trees and measure carbon storage. Additionally, bivalve molluscs were collected to analyze the state of their populations based on the abundances of organisms found, as well as other characteristics such as length and mass. Data regarding the mangrove trees included their diameter at breast height (DBH, cm), height (m), importance value index (IVI), and carbon reserves (Mg C·ha-1). Four mollusc species of commercial interest were analyzed, using data on their length (cm), weight (g), and gonodosomatic index. Economic evaluations were also conducted using data obtained from the mangrove forest, as well as tourism and historical fishing data for the collection of Chacarita. (Results). Five species of mangroves were identified: Rhizophora mangle, Rizophora racemosa, Laguncularia racemosa, Avice germinans, and Pelliciera rhizophorae, while P. rhizophorae had the highest importance value index. The study revealed a carbon storage equivalent to 78.49 Mg C·ha-1. A total of 357 organisms were counted, with Anadara similis accounting for 18% of the total count, followed by Anadara tuberculosa (37.5%), Leukoma spp. (41.46%), and Mytella guyanensis (3.08%). When considering the economic value of carbon stocks and the bivalve molluscs obtained from the samples, economic valuations of 9,812.63 USD·ha-1 and 28 USD·ha-1 were determined, respectively. (Conclusions). The low population densities of molluscs, particularly those belonging to the Anadara genus, necessitate the establishment of management measures to facilitate the recovery of these mollusk populations. This research proposes sustainable use activities such as community tourism for educational and cultural purposes.

Resumen. Los tambores y roncadores (Sciaenidae) son parte importante de la composición específica de las capturas costeras en el Golfo de California, México. Dentro de este grupo de especies, la curvina rayada (Cynoscion reticulatus) destaca por su alto potencial pesquero, gran demanda y debido a que ha incrementado su valor de mercado. La curvina rayada ha estado bajo constante presión pesquera durante los últimos 20 años. Sin embargo, se necesita contar con información biológica actual o puntos de referencia que permitan establecer medidas de manejo pesquero. Por tanto, el objetivo del presente estudio fue estimar la longitud estándar media de madurez sexual (LE 50 ) utilizando varios modelos para sugerir una talla mínima de captura (TMC) de C. reticulatus en la costa sur de Sinaloa. Para esto, se realizaron muestreos mensuales en las descargas de la flota costera desde diciembre de 2020 hasta diciembre de 2021 en la costa sur de Sinaloa. La LE 50 se evaluó con base en 3 modelos candidatos (Gompertz, Lysack y White) a través de un enfoque binomial. Los intervalos de confianza para la LE 50 se estimaron utilizando perfiles y contornos de verosimilitud, y se utilizó el criterio de información de Akaike (CIA) para seleccionar el mejor modelo. Se examinaron un total de 284 individuos, de los cuales 131 se utilizaron en el análisis. El modelo de White fue el más adecuado; sin embargo, con base en los pesos de CIA, los 3 modelos mostraron un rendimiento similar, por lo que la LE50 (24.48 cm; IC 95% 12.9-36.0 cm) se estimó como el promedio de estos. Por último, como medida de manejo, proponemos una TMC bajo un enfoque precautorio de 36 cm LE para C. reticulatus en la costa sur de Sinaloa.

Abstract. Drums and croakers (Sciaenidae) are important to the species composition of coastal catches in the Gulf of California, Mexico. Among these species, the striped corvina (Cynoscion reticulatus) stands out because of its high fishery potential, high demand, and increased market value. The striped croaker has been under constant fishing pressure over the past 20 years. Still, there needs to be current biological information or reference points to allow the establishment of management measures for fisheries. The objective of the present study was to estimate the mean standard length at sexual maturity (SL 50 ) of females using various models and to suggest a minimum catch size (MCS) for C. reticulatus off the southern coast of Sinaloa. Monthly samplings of coastal fishery landings were done from December 2020 to December 2021 on the south coast of Sinaloa. The SL 50 was evaluated based on 3 candidate models (Gompertz, Lysack, and White) through a binomial approach. Confidence intervals for SL 50 were estimated using likelihood profiles and contours, and Akaike’s information criterion (AIC) was used to select the best model. A total of 284 individuals were examined, of which 131 were used in calculations. White’s model was the most adequate; however, based on AIC weights, all 3 models performed similarly, and SL 50 (24.48 cm; C.I. 95% 12.9-70 36.0 cm) was estimated as their average. As a management measure, we propose a precautionary MCS of 36 cm SL for C. reticulatus off southern Sinaloa.

ABSTRACT This document analyzes social cartography in the fishing sector of Oaxaca, Mexico. The main objective is to represent the fishing system through the identification of the key actors, their relationships and the territory The methodology included three phases: 1) documentary to establish the theoretical framework; 2) field, with the application of 110 surveys to fishermen using the snowball technique; and 3) results, with the analysis and presentation of the data. The main results show that the agri-food sector; to which the fishing sector belongs, faces challenges such as enhancing production, supply, transformation, marketing and distribution capacities. The main government, business and higher education actors involved were identified. Regarding the fishing system in Oaxaca, the political-legislative, geographical, sustainability and health, financial and commercial, human capital, productive and infrastructural contexts were mapped, as well as the regional context of the Coast and Isthmus areas. The importance of recognizing the historical relationships that have marked fishing in Mexico is highlighted, especially in Oaxaca, one of the states with the highest rates of poverty and backwardness. JEL CLASSIFICATION: P42, J01, J54, Y90

RESUMEN Este documento analiza la cartografa social en el sector pesquero de Oaxaca, México. El objetivo principal es representar el sistema pesquero a través de la identificación de los actores clave, sus relaciones y el territorio. La metodología incluyó tres fases: 1) documental, para establecer el marco teórico; 2) de campo, con la aplicación de 110 encuestas a pescadores utilizando la técnica de bola de nieve; y 3) de resultados, con el análisis y presentación de los datos. Los principales resultados muestran que el sector agroalimentario, al cual pertenece el sector pesquero, enfrenta retos como potencializar las capacidades de producción, abastecimiento, transformación, comercialización y distribución. Se identificaron los principales actores gubernamentales, empresariales y de educación superior involucrados. En cuanto al sistema pesquero en Oaxaca, se mapearon los contextos político-legislativo, geográfico, de sustentabilidad y sanidad, financiero y comercial, de capital humano, productivo e infraestructural, así como el contexto regional de las zonas Costa e Istmo. Se destaca la importancia de reconocer las relaciones históricas que han marcado la pesca en México, especialmente en Oaxaca, uno de los estados con mayores índices de pobreza y rezago. CLASIFICACIÓN JEL: P42, J01, J54, Y90

RESUMO Este artigo analisa o mapeamento social no setor de pesca em Oaxaca, México. O principal objetivo é representar o sistema de pesca por meio da identificação dos principais atores, suas relações e o território. A metodologia incluiu três fases: l) documental, para estabelecer a estrutura teórica; 2) campo, com a aplicação de 110 pesquisas a pescadores usando a técnica de bola de neve; e 3) resultados, com a análise e apresentação dos dados. Os principais resultados mostram que o setor agroalimentar, ao qual pertence o setor pesqueiro, enfrenta desafios como o fortalecimento das capacidades de produção, fornecimento, processamento, comercialização e distribuição. Foram identificados os principais atores governamentais, empresariais e de ensino superior envolvidos. Com relação ao sistema de pesca em Oaxaca, foram mapeados os contextos político-legislativo, geográfico, de sustentabilidade e saúde, financeiro e comercial, de capital humano, produtivo e de infraestrutura, bem como o contexto regional das zonas da Costa e do Istmo. O estudo destaca a importância de reconhecer as relações históricas que marcaram a pesca no México, especialmente em Oaxaca, um dos estados com os mais altos índices de pobreza e atraso. CLASSIFICAÇÃO JEL: P42, J01, J54, Y90

Abstract Introduction: Semaprochilodus laticeps is a freshwater fish species native to the Orinoco Basin that is exploited in Colombia at two different stages of its life cycle: fry (for the ornamental trade) and adults (for the consumer market). This double exploitation of juveniles and adults raises concerns about the population stability of the species. Objective: To evaluate the sustainability of the exploitation of the species in these two life stages. Methods: 1 277 specimens of S. laticeps were sampled between June and December 2017. Population parameters were estimated from length-frequency data using ELEFAN 1 routine of the FISAT II package. Length at first maturity (Lm) and length at maximum yield (Lopt) were determined using the Froese and Binohlan equations. Virtual population analysis was performed based on Jones length cohort analysis. Results: Population parameters were as follows: K = 0.75, L∞ = 53.1 cm LE, Z = 2.92 yr-1, M = 1.24 yr-1 and F = 1.68. Lm was estimated to be 29.6 cm SL and Lopt at 33.4 cm SL. Of note, 96.3 % of the fish caught in the consumer fishery exceeded Lm and 80 % exceeded Lopt. The results of the virtual population analysis suggested that a very low proportion (0.85 %) of the population was caught as fry, possibly due to natural mortality. Conclusions: Based on the results, as no indicators of overexploitation were identified, it is recommended to continue with the dual use of S. laticeps. It is recommended to maintain the existing conservation measures, such as the closed season during the reproductive period, to ensure sustainable fishery exploitation. The results obtained can serve as a reference to analyze the situation of other species currently fished for both the ornamental (fry) and food (adult) markets.

Resumen Introducción: Semaprochilodus laticeps es una especie de pez de agua dulce originaria de la cuenca del Orinoco, explotada en Colombia en dos etapas distintas de su ciclo de vida: alevín (para el comercio ornamental) y adulto (para el mercado de consumo). Esta doble explotación de alevines y adultos genera preocupación sobre la estabilidad poblacional de la especie. Objetivo: Evaluar la sostenibilidad de la explotación de la especie en estas dos etapas de vida. Método: Entre junio y diciembre de 2017 se muestrearon 1 277 ejemplares de S. laticeps. Los parámetros poblacionales se estimaron utilizando datos de frecuencia de tallas con la rutina ELEFAN 1 del paquete FISAT II. La longitud de primera madurez (Lm) y la de máximo rendimiento (Lopt) se determinaron mediante ecuaciones de Froese y Binohlan. El análisis de la población virtual se realizó basándose en el análisis de cohorte de longitud de Jones. Resultados: Los parámetros poblacionales fueron los siguientes: K = 0.75, L∞ = 53.1 cm LE, Z = 2.92 año-1, M = 1.24 año-1 y F = 1.68. Lm se estimó en 29.6 cm SL y Lopt en 33.4 cm SL. En particular, el 96.3 % del pescado capturado en la pesquería de consumo superó Lm y el 80 % superó Lopt. El análisis de la población virtual sugirió que una fracción muy baja (0.85 %) de la población fue capturada como alevines, posiblemente atribuible a la mortalidad natural. Conclusiones: Con base en los hallazgos, al no identificarse indicadores de sobreexplotación, se recomienda continuar con el doble uso de S. laticeps. Se recomienda mantener las medidas de protección existentes, así como una veda durante el período reproductivo, para garantizar una explotación pesquera sostenible. Los resultados obtenidos pueden servir como referencia para analizar la situación de otras especies actualmente capturadas para el mercado tanto ornamental como de consumo.

Abstract Introduction: Coryphaena hippurus is a species of commercial interest with a high migratory capacity, a characteristic that places it in tropical and subtropical environments, preferring areas with a temperature range between 21 and 30 °C and salinity close to 31 ppt. Although the population trend of C. hippurus is stable, the fishing of this resource is increasing and occupies important positions in the economy of the Eastern Tropical Pacific coastal countries, which demonstrates the need to design and strengthen conservation strategies for the adequate use of this resource. Given its location in tropical and subtropical environments, its availability and distribution could be affected by climate change. Objective: To analyze the current and future potential distribution of C. hippurus under climate change scenarios. Methods: Ten algorithms were used to model the potential distribution and current habitat suitability index of C. hippurus as a function of sea surface temperature, current salinity and velocity, and these results were then projected under the most extreme climate change scenario. Results: There were good performances with all the algorithms used, but the model generated with BIOCLIM (AUC: 0.89) was chosen because it also solves the problem of spatial and temporal bias found in the records of the species. The region of greatest habitat suitability for C. hippurus matches the oceanic fronts of the Eastern Tropical Pacific. Under future conditions of extreme climate change, the species distribution pattern indicates a contraction, relocation, and expansion of habitat south of the equator. Conclusions: Under conditions of extreme climate change, the distribution model for C. hippurus suggests a process of topicalization of marine ecosystems in the Eastern Tropical Pacific by 2100.

Resumen Introducción: Coryphaena hippurus es una especie migratoria de interés comercial, que se encuentra en ambientes tropicales y subtropicales, prefiriendo zonas con un rango de temperatura entre 21 y 30 °C y salinidad cercana a 31 ppt. Aunque la tendencia poblacional del dorado es estable, la pesquería de este recurso está aumentando y ocupa importantes posiciones en la economía de países costeros del Pacífico Oriental Tropical, evidenciándose la necesidad de diseñar y fortalecer estrategias de conservación y mejorar el aprovechamiento de este recurso. Dada su ubicación en ambientes tropicales y subtropicales, la disponibilidad y distribución de este recurso podría verse afectado a futuro por el cambio climático. Objetivo: Analizar la distribución potencial actual y futura de C. hippurus bajo condiciones de cambio climático. Métodos: Se emplearon 10 algoritmos para modelar la distribución potencial e idoneidad de hábitat actual para C. hippurus a partir de la temperatura superficial del mar, la salinidad y velocidad de las corrientes, posteriormente se proyectaron estos resultados según el escenario de cambio climático más extremo. Resultados: Hubo buenos desempeños con todos los algoritmos empleados, pero se escogió el modelo generado con BIOCLIM (AUC: 0.89) pues además resuelve el inconveniente del sesgo espacial y temporal hallado en los registros de la especie. La región de mayor idoneidad de hábitat para C. hippurus coincide con los frentes oceánicos del Pacífico Oriental Tropical. En condiciones futuras de cambio climático extremo, el modelo de distribución de la especie indica una contracción, reubicación y expansión de hábitat hacia el sur de la línea ecuatorial. Conclusiones: En condiciones de cambio climático extremo, el modelo de distribución para C. hippurus sugiere un proceso de tropicalización de los ecosistemas marinos en el Pacífico Oriental Tropical para el año 2100.

ABSTRACT. Size-frequency, length-weight, and length-length relationships for Hemiramphus brasiliensis (Linnaeus, 1978) and Hyporhamphus unifasciatus (Ranzani, 1841) from the north coast of the Yucatan peninsula in the Gulf of Mexico were studied. All specimens were collected from the artisanal fishery of halfbeaks, which is under an exploratory fishery license. Five thousand two hundred-one individuals (5,134 H. brasiliensis and 67 H. unifasciatus) were sampled and analyzed. The size-frequency analysis showed that individuals of H. brasiliensis among 31.5 to 34.5 cm of total length (TL) class dominated the fishery samples; however, the separation index (≥2) detected two modes in the last months of the year, identifying a cohort with a length below the average (24.5 to 26.5 cm TL). The isometric growth pattern was found in females and pooled sex in H. unifasciatus, and positive allometric growth was found in males and H. brasiliensis. The TL was 9 and 4.5% greater than the fork length for H. brasiliensis and H. unifasciatus, respectively. The size of H. brasiliensis (45.5 cm TL) exceeds the reported in previous studies from the Gulf of Mexico and the Mexican Caribbean Sea, and a new record of maximum length for H. unifasciatus (31cm TL) was reported to the FishBase database.

Resumen México es uno de los pocos países que combinan un gran legado pesquero y agrícola. No obstante, a pesar de sus contribuciones sociales y en la producción de alimentos, las políticas públicas mexicanas, en gran medida, han abandonado a los pequeños productores a lo largo de las últimas cuatro décadas. Además, se les ha relegado como el eslabón más débil dentro de las lógicas económicas del régimen alimentario mundial. Desde que México firmó el primer Tratado de Libre Comercio de América del Norte, los pescadores artesanales y los pequeños agricultores se han enfrentado a cinco problemas centrales: el desmantelamiento de los medios de producción, la erosión de las capacidades organizativas, lógicas comerciales desventajosas que limitan el acceso a mercados favorables, la occidentalización de las dietas y frecuentes periodos de inseguridad alimentaria. Este estudio aborda la siguiente pregunta de investigación, ¿cómo, frente a los procesos de exclusión del actual régimen alimentario, el abandono de las políticas públicas y la desarticulación de la mayoría de las capacidades organizativas sectoriales en México, pueden los pescadores y agricultores de pequeña escala, así como los consumidores urbanos y rurales, mejorar las realidades productivas, comerciales y alimentarias dentro de sus propios contextos de vida? Introducimos un enfoque transdisciplinario novedoso para un contexto específico, basado en nuestra experiencia de investigación con comunidades pesqueras y agrícolas de la Península de Yucatán. Finalmente, esbozamos nichos de innovación que podrían conducir a la relocalización de sistemas alimentarios regionales a través de complementariedades entre las zonas costeras y del interior.

Abstract Mexico is one of the few countries that combine fishing and agricultural legacies. Despite the social importance and central role of food production, Mexican public policies have largely abandoned small-scale producers over the last four decades. Moreover, they have been relegated to the status of weakest link in the economic logic of the global food regime. Since Mexico signed the first North American Free Trade Agreement, small-scale fishers and farmers have faced five main problems: dismantling of means of production, erosion of organizational capabilities, disadvantageous commercial logic that limits access to favorable markets, westernization of diets, and frequent periods of food insecurity. This study addresses the following research question, how, in the face of the exclusion processes of the current food regime, the abandonment of public policies and erosion of most of the sectoral organizational capacities in Mexico, can small-scale fishers and farmers, as well as urban and rural consumers improve their productive, commercial and food problems within their living contexts? We introduced a novel transdisciplinary context-specific approach, based on our research experience in fishing and farming communities of the Yucatan Peninsula. Finally, we outline innovation niches that could lead to relocate regional food systems through complementarities between coastal and inland areas.

RESUMO Em agosto de 2019, 11 estados brasileiros foram atingidos por um extenso derramamento de petróleo. Nesse contexto, quais os principais impactos socioambientais e psicossociais causados pelo derramamento de petróleo na vida de famílias e indivíduos que vivem da pesca artesanal? Trata-se de uma pesquisa com métodos mistos que utilizou como técnicas: grupo focal e aplicação de formulários desenvolvidos de forma participativa com comunidades da foz do rio Jaguaribe, Ceará, e efetuados entre julho e agosto de 2020. Sua aplicação foi selecionada a partir de uma amostragem não probabilística do tipo intencional por julgamento, cujos dados foram processados com o suporte do software IBM Statistical Package for Social Sciences (SPSS). Os resultados indicam impactos ambientais, como: presença de óleo no rio e em animais; exposição humana direta ao petróleo; sintomas na saúde após exposição; efeitos psicológicos; consumo de recursos alimentares como peixes e crustáceos; e redução da renda dos Pescadores e Pescadoras Artesanais. Assim, compreende-se que a vida, o ambiente, a saúde e o trabalho dessas populações foram agravados, principalmente aqueles de ordens socioeconômicas, de segurança alimentar e hídrica e de saúde. 2019 1 contexto artesanal Tratase Trata se técnicas Jaguaribe Ceará 2020 julgamento SPSS. SPSS . (SPSS) ambientais animais psicológicos crustáceos Artesanais Assim compreendese compreende ambiente agravados socioeconômicas 201 202 (SPSS 20 2

ABSTRACT In August 2019, eleven Brazilian states were hit by an extensive oil spill. In this context: what are the main socio-environmental and psychosocial impacts caused by the oil spill on the lives of families and individuals who make their living from artisanal fishing? This is a research with mixed methods that used the following techniques: focus group and application of forms developed in a participatory manner with communities at the mouth of the Jaguaribe River, Ceará, and applied between July and August 2020. Its application was selected from a non-probabilistic sampling of the intentional type by judgment and was processed with the support of the IBM Statistical Package for Social Sciences (SPSS) software. The results indicate environmental impacts, such as: finding oil in the river and in animals; direct human exposure to oil; health symptoms after exposure; psychological effects; consumption of food resources such as fish and shellfish; and reduction in the income of Artisanal Fishermen and Fisherwomen. That way, it is understood that the lives, environment, health, and work of these populations were aggravated, especially those of socioeconomic, food and water security, and health orders. 2019 context socioenvironmental socio fishing techniques River Ceará 2020 nonprobabilistic non probabilistic SPSS (SPSS software animals effects shellfish Fisherwomen way environment aggravated socioeconomic security orders 201 202 20 2

RESUMO As Unidades de Conservação (UC) constituem domínios territoriais estratégicos para a gestão socioambiental na Amazônia. Neste estudo, questiona-se como os moradores e gestores de uma UC definem seus territórios de sustentabilidade para a Amazônia, especificamente, em atenção à saúde. Para isso, foi realizada pesquisa de campo em uma comunidade localizada na Reserva de Desenvolvimento Sustentável do Rio Negro. Para a coleta de dados, foram utilizadas técnicas, como entrevistas, diário de campo e observação direta. Como resultados, destaca-se que grande parte das famílias possuía sustento baseado em uma unidade de produção familiar, cuja renda média mensal é abaixo de um salário mínimo, e gerada principalmente na agricultura e pesca. Dadas as condições de vida e saúde na reserva, gestores e moradores entrevistados problematizam os pressupostos sustentáveis que definem os atuais modelos de UC na região amazônica, visto que não apresentam ações estratégicas para o efetivo desenvolvimento humano e social de suas famílias. A noção de saúde na Amazônia está imbricada no controle coletivo sobre esses territórios, e se ela não é suficientemente ampla para compreendê-los, precisa ser reelaborada. (UC estudo questionase questiona especificamente isso Negro dados técnicas entrevistas direta resultados destacase destaca familiar mínimo pesca reserva amazônica compreendêlos, compreendêlos compreendê los, los compreendê-los reelaborada

ABSTRACT Conservation Units (UCs) constitute strategic territorial domains for social and environmental management in the Amazônia. In this study, we question how residents and managers of a UC define their sustainability territories, specifically, in health care. Field research was carried out in a community located in the Rio Negro Sustainable Development Reserve. For data collection, techniques such as interviews, field diary and direct observation were used. As a result, their empirical data show that a large proportion of families had a livelihood based on a family production unit, with an average monthly income below the minimum wage, and generated mainly in agriculture and fishing. Considering the living and health conditions in the reserve, managers and residents interviewed problematize the sustainable assumptions that define current models of UC in the Amazônia, since they do not have strategic actions for the effective human and social development of their families. The notion of health in the Amazon is embedded in collective control over these territories, and if it is not broad enough to encompass them, it needs to be redefined. UCs (UCs Amazônia study territories specifically care Reserve collection interviews used result unit wage fishing reserve them redefined

RESUMO Com o objetivo de analisar os processos de vulnerabilização socioambientais e em saúde das populações expostas ao petróleo bruto, no contexto da pandemia de covid-19 e apresentar caminhos para a reparação integral comunitária, este estudo assumiu uma perspectiva teórico-metodológica ancorada na Abordagem Ecossistêmica em Saúde, na Reprodução Social da Saúde e na Determinação Social da Saúde. Recorreu-se à pesquisa-ação como estratégia para a interação dialógica com os sujeitos dos territórios e construção de experiências emancipatórias na luta por saúde, ambiente e desenvolvimento sustentável. Apresenta-se, de forma geral, o processo de determinação social da saúde das comunidades da pesca artesanal, a promoção de interlocuções comunitária-institucional. Os resultados reforçam a necessidade de estudos no campo da saúde ambiental que alie o conhecimento acadêmico e a sabedoria dos povos das águas à busca por verdade, justiça e reparação. Para tal, é necessário desvelar as injustiças ambientais, o racismo ambiental e os conflitos ambientais, dialogando sobre o modelo de desenvolvimento e o neoextrativismo na sociedade, enquanto importantes desafios e oportunidades para promoção de Territórios Saudáveis e Sustentáveis. bruto covid19 covid 19 covid-1 comunitária teóricometodológica teórico metodológica Recorreuse Recorreu se pesquisaação pesquisa ação sustentável Apresentase, Apresentase Apresenta se, Apresenta-se geral artesanal comunitáriainstitucional. comunitáriainstitucional institucional. institucional comunitária-institucional verdade tal ambientais sociedade Sustentáveis covid1 1 covid-

ABSTRACT This study adopted a theoretical-methodological perspective anchored in the Ecosystem Approach to Health, the Social Reproduction of Health, and the Social Determinants of Health to analyze the socioenvironmental vulnerability and health of populations exposed to crude oil during the COVID-19 pandemic and present pathways for comprehensive community reparation. We employed action research as a strategy for dialogic interaction with the subjects of the territories and the construction of emancipatory experiences in the struggle for health, the environment, and sustainable development. We presented a general outlook on the social determination of the health of small-scale fishing communities and the promotion of community-institutional dialogues. The results reinforce the need for environmental health studies that combine academic knowledge with the wisdom of water peoples in the pursuit of truth, justice, and reparation. To do so, it is necessary to unveil environmental injustice, racism, and conflicts, engaging in dialogue about the development model and neo-extractivism in society as essential challenges and opportunities for promoting Healthy and Sustainable Territories. theoreticalmethodological theoretical methodological COVID19 COVID 19 COVID-1 reparation environment smallscale small scale communityinstitutional institutional dialogues truth justice so injustice racism conflicts neoextractivism neo extractivism Territories COVID1 1 COVID-

Abstract The fishing industry produces byproducts that accumulate and cause environmental pollution problems; however, could be used as an alternative source of nutrients in ruminants. The objective of the present study was to evaluate the response over ruminal microbiome, apparent digestibility and productivity of Katahdin lambs fed different levels of shrimp shell meal (HCC). Four male lambs with live weight of 22 ± 2.5 kg were assigned in a repeated Latin square design (4 animals x 4 treatments). The animals were assigned for 16 days per period to diets with 0, 5, 10 and 20 g 100 g DM of HCC, the treatments were: HCC0, HCC5, HCC10 and HCC20, respectively. The greatest daily weight gain was found in the HCC5 treatment (P ≤ 0.05). However, the highest dry matter intake was observed in animals with the HCC20 diet (P ≤ 0.05). In the apparent digestibility of the dry matter there was no difference between treatments (P > 0.05), neither in the concentration of total bacteria (P > 0.05), while the concentration of cellulolytic bacteria and chitin-degrading bacteria was higher in the animals from HCC20 treatment (P ≤ 0.05). The results indicate an adaptation of the ruminal microbiome to high doses of HCC, therefore, HCC can be used in diets for sheep without effect on rumen metabolism and microbial, nutrient digestibility and animal performance.

Resumen La industria pesquera genera subproductos que al acumularse causan problemas de contaminación ambiental; sin embargo, podrían ser una fuente de nutrientes para rumiantes. El objetivo de este estudio fue evaluar la respuesta sobre el microbioma ruminal, la digestibilidad aparente y productividad de borregos Katahdin alimentados con diferentes niveles de harina de caparazón de camarón (HCC). Cuatro borregos machos con peso vivo de 22 ± 2.5 kg fueron asignados en un diseño cuadrado latino (4 animales x 4 tratamientos) repetido. Los animales fueron asignados durante 16 días por periodo a dietas con 0, 5, 10 y 20 g 100 g-1 de MS de HCC, los tratamientos fueron: HCC0, HCC5, HCC10 y HCC20, respectivamente. La mayor ganancia diaria de peso se tuvo en los animales del tratamiento HCC5 (P ≤ 0.05). Sin embargo, el mayor consumo de materia seca se observó en los animales con la dieta HCC20 (P ≤ 0.05). En la digestibilidad aparente de la materia seca no hubo diferencia entre tratamientos (P > 0.05), ni en la concentración de bacterias totales (P > 0.05), mientras que la concentración de bacterias celulolíticas y de bacterias degradadoras de quitina, fue mayor en los animales del tratamiento con HCC20 (P ≤ 0.05). Los resultados indican una adaptación del microbioma ruminal a dosis altas de HCC, por tanto, se puede usar HCC en dietas para borregos sin efecto en el metabolismo y microbiana ruminal, la digestibilidad de los nutrientes y en el desempeño de los animales.