https://repositorio.catie.ac.cr/handle/11554/11386 2026-05-18T20:17:55Z 2026-05-18T20:17:55Z Álvarez, Francisco S https://repositorio.catie.ac.cr/handle/11554/14353 2026-05-17T21:41:30Z 2019-01-22T00:00:00Z

Your place, my place..., distribution of Agonostomus monticola and Sicydium multipunctatum in the Acahuapa Watershed Álvarez, Francisco S Diadromous fish undergo habitat shifts over their life cycles, dwelling between different environments. In the Acahuapa River watershed, the distribution, abundance, and length structure of A. monticola and S. multipunctatum were assessed in its tributary rivers and main channel for 1 year. Fishes were captured using electrofishing devices and nets. Environmental variables, habitat traits, and land use around the sampling points were taken into consideration. A total of 222 A. monticola and 183 S. multipunctatum were recorded during the sampled year. Their distribution was restricted to 8 of the 17 sampling points. Both species co-occurred at 7 of 8 sites, all at elevations between 19 and 325 m asl. Both species were more abundant in lower parts of the watershed and in the tributary rivers than in the main channel. Water temperature, dissolved oxygen, river width and depth, current speed, substrata dominated by rocks and logs, and surroundings of forest and small-scale agriculture favor the presence of these fishes. The smaller individuals of A. monticola occurred at lower elevations of the watershed but fish length differences were not present at the main channel or at the tributaries. For S. multipunctatum, the larger fish were captured also at low elevations and at the main channel of the Acahuapa River watershed.

2019-01-22T00:00:00Z Álvarez, Francisco S https://repositorio.catie.ac.cr/handle/11554/14352 2026-05-17T21:21:35Z 2019-02-20T00:00:00Z

The ichthyology collection at the Natural History Museum of El Salvador (MUHNES) Species checklist and new country records Álvarez, Francisco S The ichthyology collection at the Natural History Museum of El Salvador (MUHNES) was established in 1970. Herein, we provide the first quantitative and qualitative description of the collection; and the first public record of the specimens and taxa therein represented. The MUHNES fish collection is the largest and most important of El Salvador, hosting 3791 specimens in 1005 lots representing 26 orders, 75 families, 159 genera and 248 species from both marine and freshwater environments, including larval, juvenile and mainly adult specimens. MUHNES specimens include 39% of the 587 species reported in the official national checklist of fishes of El Salvador, and support the inclusion of 47 additional species for a new total of 634. Furthermore, MUHNES specimens support (1) the occurrence of Cathorops fuerthii along the coast of El Salvador, extending its distribution from northern Costa Rica; (2) the occurrence of Atherinella starksi in El Salvador, reducing a gap for records between Nicaragua and Mexico and (3) the extension in the distribution range of Profun-dulus kreiseri to Morazan, El Salvador. This study represents an advance on the understanding of diversity and distribution of the national ichthyofauna.

2019-02-20T00:00:00Z Álvarez, Francisco S https://repositorio.catie.ac.cr/handle/11554/14351 2026-05-17T21:05:48Z 2020-01-01T00:00:00Z

Big cats are still walking in El Salvador First photographic records of Puma concolor (Linnaeus, 1771) and an overview of historical records in the country Álvarez, Francisco S The presence of Puma, Puma concolor, has been controversial in El Salvador due to the lack of published, verifiable data. We surveyed 119 sites in Montecristo National Park and 17 sites in the Rio Sapo basin using wildlife cameras. We detected Pumas in both areas, representing the first photographic records for El Salvador. We call for a national Puma conservation strategy with research in basic ecology and migration corridors, regulation of hunting, management of livestock losses, and public acceptance programs. The Rio Sapo basin should be granted formal protection.

2020-01-01T00:00:00Z Álvarez, Francisco S https://repositorio.catie.ac.cr/handle/11554/14350 2026-05-17T18:45:31Z 2020-08-27T00:00:00Z

A structured open dataset of government interventions in response to COVID-19 Álvarez, Francisco S In response to the COVID-19 pandemic, governments have implemented a wide range of non-pharmaceutical interventions (NPIs). Monitoring and documenting government strategies during the COVID-19 crisis is crucial to understand the progression of the epidemic. Following a content analysis strategy of existing public information sources, we developed a specific hierarchical coding scheme for NPIs. We generated a comprehensive structured dataset of government interventions and their respective timelines of implementation. To improve transparency and motivate collaborative validation process, information sources are shared via an open library. We also provide codes that enable users to visualise the dataset. Standardization and structure of the dataset facilitate inter-country comparison and the assessment of the impacts of different NPI categories on the epidemic parameters, population health indicators, the economy, and human rights, among others. This dataset provides an in-depth insight of the government strategies and can be a valuable tool for developing relevant preparedness plans for pandemic. We intend to further develop and update this dataset until the end of December 2020.

2020-08-27T00:00:00Z