A new species of the genus Barbouria from Cozumel Island, Mexico, is described. The new species, Barbouria yanezi is similar to Barbouria cubensis in exhibiting a cornea narrower than the eyestalk, and in its telson ornamentation, but differs from the latter species in the number of rostral spines, the proportions of the scaphocerite, the relative proportions of the carpus and propodus of the first and second pereiopods, the relationship between the appendices masculina and interna, and in size: it is larger than B. cubensis. The geographical relationship between the species is discussed. RESUMENSe describe una nueva especie del género Barbouria de la isla de Cozumel, México. Barbouria yanezi nueva especie, es similar a Barbouria cubensis en mostrar una córnea más estrecha que el tallo ocular y la ornamentación del telson, pero difiere de ésta en el número de espinas rostrales, proporciones del escafocerito, proporciones relativas del carpus y propodio del primero y segundo pereiópodo, así como la relación entre el apéndice masculina e interna, además es más grande que B. cubensis. La relación geográfica entre estas especies es discutida.

The study shows the importance of tobacco dependency as a public health problem in Castilla y León, and its major contribution to premature death.

Artisanal fisheries are socially and economically important along the Caribbean coast of Colombia. These fisheries remain poorly characterized, making it difficult to estimate their potential impact, especially on non‐targeted catch such as elasmobranchs. A rapid assessment framework was used to investigate the exploitation, use, and relative abundance of elasmobranchs and predatory teleosts in a region along the Caribbean coast of Colombia. In‐person structured interview surveys (n = 188) were conducted during the autumn of 2016 at eight fishing towns around Cartagena and the islands of the Natural National Park (NNP) Corales del Rosario and San Bernardo. Baited remote underwater video systems (BRUVS) (n = 200) deployed at four reefs were used to assess the relative abundance of elasmobranchs and other predatory teleosts. Fishers reported capturing eight shark and five ray taxa. Although 99% of fishers indicated that they did not target sharks, 83% reported keeping the catches to sell, eat, or both. Similarly, 81% of fishers did not target rays, but 90% reported retaining catches. Most fishers (84%) perceived a decline of sharks in the coastal waters since they started fishing, compared with 41% reporting batoid declines. BRUVS data support the perceptions of elasmobranch declines. Elasmobranch abundances were very low and no difference was detected between protected and unprotected reefs. Results were similar for teleost taxa, but there were higher abundances inside one marine protected area (MPA) that had high enforcement. Taken together, the data suggest considerable degradation of not only elasmobranch populations but also predatory fish populations of coral reef habitats in a region of the Colombian Caribbean. Furthermore, artisanal fishers continue to exploit coral reef resources inside MPAs unless there is strong enforcement. Enforcement can be difficult with limited resources, and therefore community‐based conservation methods may be more effective. Engagement with the local fishing community may help to reduce existing tensions and improve compliance.

The study of bacterial communities is highly relevant in relation to the knowledge of global biological biodiversity and the biogeochemical cycles of the planet. Microbiological activity is the basis of ecosystems functioning, among these are the mangroves, which offer a wide variety of goods and services to humanity. Nevertheless, they have been severely impacted by anthropogenic activities such as felling, heavy metal pollution, water enrichment, overexploitation of resources, among others. This research aimed to characterize the culturable bacterial community from the water column and the oyster Crassostrea rhizophorae muscle tissue in a mangrove ecosystem from the Cartagena Bay, Colombian Caribbean as a baseline for future studies on bioremediation treatments. To accomplish this, four samplings were conducted over the course of a year, including contrasting climatic seasons (e.g., windy and rainy), collecting oyster individuals from mangroves and samples from superficial water. The bacterial community comprised 25 species, from which 9 were exclusive for the oyster tissue, 7 for the water column, and 9 generalists isolated from both types of samples. Enterobacter cloacae was the most frequent species during the year, followed by Escherichia coli and Erwinia sp.There were significant differences in the species composition between the sampling months (ANOSIM, R = 0:492; p=D 0:001), because of the presence of a higher number of exclusive species in December than in the other months. Furthermore, the physicochemical variables that presented a major influence on the bacterial community composition were the wind velocity and the dissolved oxygen. The review of this research findings will allow to detect if any of the identified species could be exploited for bioremediation treatments, and it will contribute to the preservation of marine-coastal water bodies biodiversity.