Applied interpolation methodology with GIS used for artisanal fishing zoning in Bahía Magdalena, Mexico

Objective: To limit the artisanal fishing zones in the water mirror of Magdalena Bay, by means of interpolation. Design/methodology/approach: Through surveys, social, economic and biological production data, wich are collected from a sample of 56 artisanal fishing cooperatives. The data is integrated into a relational database with geospatial reference and geostatistically processed with interpolation methods using a geographic information system. Results: Four zoning maps based on the interpolation of the variables target species, fishing effort, extraction volume and sale value. Limitations on study/implications: The remoteness and difficult access to the study area. Findings/conclusions: The methodology can be used at the national level and generate a limitation of the priority zones for artisanal fishing in Mexico, contributing to decision making and management plans that can consider the variables of the fishermen's social life

Comarca Lagunera: Between the socioeconomic characterization and the availability of piped water

Objective: This research aims to describe with sociodemographic features the municipalities that make up the Comarca Lagunera. They are located in the states of Coahuila and Durango. In Coahuila, they are: Francisco I. Madero, Matamoros, San Pedro, Torreón and Viesca; and in Durango: Gómez Palacio, Lerdo, Mapimí and Tlahualilo. Design/methodology/approach: The methodological strategy is quantitative, using descriptive statistics as analysis technique to incorporate synthetic measures (such as indices) and proportions. The information sources come from different instances (CONEVAL, CONAPO and INEGI). In all cases, the level of disaggregation is municipal and the moment of information collection corresponds to 2020. The population volume of the municipality is described, as well as its proportion with regards to the number of inhabitants in the state. Later, the results from the Gini index, marginalization index, proportion of occupied population devoted to primary activities, and proportion of private households without access to piped water are incorporated. Results: The municipalities that had the highest values for each of the variables are presented. In Mapimí the Gini index is 0.54; in Viesca, 36.2% of the population is dedicated to primary activities; in Tlahualilo, 4.13% of households lack piped water; and the index of marginalization in Torreón is 0.62. Limitations on study/implications: It was not possible to present the information with a higher level of disaggregation because the chosen variables only have data available up to the municipal level. Findings/conclusions: The use of indices allows to carry out a very useful characterization and can be strengthened by the inclusion of specific variables that account for the municipal situation