SUMMARY: This paper comprises the decapod crustacean material collected during the "Victor Hensen" campaign 1994 and during the last phase of "Polarstern" cruise ANT XIII/4 in 1996. Sampling covered waters of medium and greater depth in the Straits of Magellan, the channels towards the south, and the area south of the Beagle Channel including the northern slope of the Drake Passage. 30 species of decapods were found, which is considered a good result taking into account that the species restricted to the intertidal and the upper subtidal, which were not subject of this study, are missing. Anomurans were the dominant group, followed by brachyurans and caridean shrimps. Additionally one palinuran (Stereomastis suhmi; n=8) and a single specimen of the astacuran Thymops birsteini were found. Dominance patterns changed considerably from the Straits of Magellan to the channel system south of the Strait, and again to the area south of the Beagle and the northern slope of the Drake Passage. Among the top dominants were the galatheid Munida spp., which in the southernmost area numerically contributes >90% to the catches, the brachyuran crabs Peltarion spinosulum and Eurypodius latreillii, the hermit crab Pagurus comptus, and the caridean shrimps Austropandalus grayi and Pasiphaea acutifrons. Munida spp. and P. spinosulum also revealed the highest frequency of occurrence at 49% and 45% of the stations, respectively, followed by E. latreillii, P. comptus, and A. grayi. Regional and bathymetric distribution of the principal species are given. The depth range of some species was found to be very wide (Campylonotus semistriatus, Munida spp., E. latreillii, P. spinosulum) whereas others were restricted to relatively shallow waters (Pagurus gaudichaudii, Lithodes santolla, Campylonotus vagans, A. grayi) or great depth (Nematocarcinus lanceopes, Stereomastis suhmi). It should be mentioned, however, that sampling depths differed greatly in the areas of study. Contrary to the Antarctic, the Magellan region reveals a strong dominance of reptant decapods whereas caridean shrimps play a minor role in that region. This dominance pattern is valid even for the southernmost areas of the region. The northern slope of the Drake Passage is characterized by a mixture of cold-temperate and Antarctic elements which make it a transitional area between the two continents.Key words: Decapoda, species composition, distribution, abundance, Straits of Magellan, Beagle Channel, Drake Passage RESUMEN: COMPOSICIÓN DE ESPECIES Y DISTRIBUCIÓN DE LOS CRUSTÁCEOS DECÁPODOS EN LAS AGUAS DE LA PATAGONIA Y DETIERRA DEL FUEGO, AMÉRICA DEL SUR. -En este trabajo se analiza el material de crustáceos decápodos recolectado en la Campaña "Victor Hensen" 1994 y en la última etapa de la campaña "Polarstern" ANT XIII/4 en 1996. El muestreo cubrió las aguas de mediana y mayor profundidad en el Estrecho de Magallanes, los canales del sur y el área al sur del Canal del Beagle incluyendo la vertiente norte del Paso de Drake. Se registraron 30 especies de decápodos, lo cual ...

SUMMARY: The decapod crustaceans Eurypodius latreillii (Brachyura) and Pagurus comptus (Paguridae) were the most frequently occurring species in Agassiz trawl (AGT) samples obtained during the Chilean -German -Italian "Victor Hensen" Expedition in the Straits of Magellan and south of the Beagle Channel. Sex composition and length structure aspects were studied using the material from 15 stations in the two areas, which comprised 773 specimens of E. latreillii and 647 P. comptus. The size frequency of both species was characterized by the presence of small individuals in shallow waters. The sex composition varied with depth, indicating a dominance of E. latreillii females in deep waters, whereas no such pattern was observed in P. comptus. These differences may be caused by epizoites of E. latreillii and the availability of vacant gastropod shells for P. comptus, in addition to geographical aspects and life-cycle patterns of these species.

Gifts are a regular practice within the relationships established by business world stakeholders with the professionals that may be instrumental in promoting their sales. Consequently, gifts are a potential source of conflicts of interest. This article is the result of a bibliographic study of papers addressing gifts, published in scientific journals which was carried out with the aim of identifying what kinds of professions address the issue and in what ways, in order to reach conclusions that may enhance reflection and contribute to professional training. The research was carried out using the SciELO, PsychNet, IEEE, and Proquest databases and yielded 59 publications that span the period between 1998 and 2015. Results show a remarkable concentration in health-related professions, mainly in their relationships with the pharmaceutical industry. Nevertheless, an emerging presence is being observed in other professional fields. Starting from a philosophical conceptualization of the gift as a present, the results suggest that it is not this conception of gift but rather the exchange rationality that is reflected in these practices, thus becoming an ethically gray, i.e., uncertain area, that cannot be disregarded when it comes to training in professional ethics. Key words: gift, conflict of interest, professions, pharmaceutical industry Los regalos como conflicto de interés: ¿Una zona gris?Resumen: Los regalos son una práctica habitual en las relaciones que establecen los actores del mundo empresarial con aquellos profesionales que pueden potencialmente promover sus ventas. Por ello, constituyen fuente de eventuales conflictos de interés. Este artículo es el resultado de un estudio bibliográfico de artículos publicados en revistas científicas acerca de los obsequios con el propósito de identificar en qué tipos de profesiones el tema es tratado y de qué maneras, para arribar a conclusiones que enriquezcan la reflexión y contribuyan en la formación profesional. La pesquisa se efectuó a través de las bases SciELO, PsychNet, IEEE y Proquest, dando como resultado 59 publicaciones que abarcan el período comprendido entre 1998 y 2015 y que muestran una notoria concentración en las carreras de la salud, principalmente en sus relaciones con la industria farmacéutica. A pesar de ello, se aprecia una presencia emergente en carreras de otros campos profesionales. Partiendo de una conceptualización filosófica del regalo en cuanto don, los resultados inducen a concluir que no es esta concepción de regalo la que se expresa en estas prácticas sino la racionalidad del intercambio, constituyéndose en una zona éticamente gris, es decir, incierta, que resulta insoslayable en la formación en ética profesional. Palabras clave: regalo, conflicto de interés, profesiones, industria farmacéutica Presentes e conflitos de interesses: uma área cinza?Resumo: A troca de presentes é uma prática regular dentro das relações estabelecidas no mundo de negócios, o que pode ser um instrumento na promoção de vendas. Consequentemente, os present...

SUMMARY: Egg production and reproductive investment were studied in the spider crab Eurypodius latreillii from the Straits of Magellan, southern Chile. A total of 66 ovigerous females were analyzed, ranging in size from 29.0 to 62.9 mm carapace length. E. latreillii produced up to 15886 embryos, and clutch size increased with maternal size. Initial egg size was large (0.162 mm 3 ), and the embryo volume increase during the incubation period was 32 %. Brood mortality was substantial (83 %), and since egg volume increase could not compensate for the egg loss, average egg mass volume decreased considerably during embryogenesis. The average brood mass at laying accounted for 13 % of the maternal body mass (on a wet mass basis), and this value coincides with previous findings concerning energy allocation for egg production in other brachyuran crabs. In general, our data regarding E. latreillii correspond well with those from spider crab species inhabiting the northern hemisphere. The large egg size of E. latreillii compared with majids from other geographical regions may be an indication of a latitudinal gradient in the reproductive biology of majid crabs. Future studies with spider crabs from the southern hemisphere are desirable to substantiate this assumption.Key words: egg production; energy allocation; brood mortality; southern hemisphere, Majidae. GUÉRIN, 1828 (DECAPODA: MAJIDAE) EN EL ESTRECHO DE MAGALLANES, SUR DE CHILE. -Se estudió la producción de huevos y la inversión reproductiva del cangrejo araña Eurypodius latreillii proveniente del Estrecho de Magallanes, sur de Chile. Se analizaron un total de 66 hembras ovígeras con un rango de tamaños entre 29,0 y 62,9 mm de longitud de caparazón. E. latreillii produjo hasta un máximo de 15886 embriones, y el número de huevos aumentó con el tamaño de la hembra. El tamaño inicial del huevo fue grande (0,162 mm 3 ) y el aumento del volumen embrionario durante el período de incubación fue de 32 %. La mortalidad de huevos fue considerable (83 %), y como el aumento en el volumen de los huevos no pudo compensar la pérdida de huevos, el promedio del volumen de la masa de los huevos disminuyó de forma considerable durante la embriogénesis. La masa de huevos representó un 13 % de la masa corporal de la madre, y este valor coincide con observaciones previas sobre la asignación de energía para la producción de huevos en otros braquiuros. En general, nuestros datos sobre E. latreillii concuerdan con datos sobre especies del cangrejo araña del hemisferio norte. El tamaño grande de huevos de E. latreillii comparado con Majidae de otras regiones geográficas podría ser interpretado como una indicación de un gradiente latitudinal en la biología reproductiva de cangrejos májidos. Para corroborar esta interpretación se requerirían estudios futuros con cangrejos araña del hemisferio sur. RESUMEN: PRODUCCIÓN DE HUEVOS EN EURYPODIUS LATREILLIIPalabras clave: producción de huevos; asignación de energía; mortalidad de huevos, hemisferio sur, Majidae.