A pilot study of hogfish (Lachnolaimus maximus Walbaum 1792) movement in the Conch Reef Research Only Area (northern Florida Keys)

The largely sedentary behavior of many fishes on coral reefs is well established. Information on the movement behavior of individual fish, over fine temporal and spatial scales, however, continues to be limited. It is precisely this type of information that is critical for evaluating the success of marine reserves designed for the conservation and/or management of vagile fishes. In this pilot study we surgically-tagged eight hogfish (Lachnolaimus maximus Walbaum 1792) with coded-acoustic transmitters inside the Conch Reef Research Only Area (a no-take marine reserve) in the northern Florida Keys National Marine Sanctuary. Our primary objective was to characterize the movement of L. maximus across Conch Reef in the vicinity of the reserve. All fish were captured, surgically-tagged and released in situ during a saturation mission to the Aquarius Undersea Laboratory, which is located in the center of the reserve. Movement of tagged L. maximus was recorded for up to 95 days by three acoustic receivers deployed on the seafloor. Results showed clear diel patterns in L. maximus activity and regular movement among the receivers was recorded for seven of the eight tagged fish. Fidelity of tagged fish to the area of release was high when calculated at the scale of days, while within-day fidelity was comparatively low when calculated at the scale of hours. While the number of fish departures from the array also varied, the majority of departures for seven of the eight fish did not exceed 1-hr (with the exception of one 47-day departure), suggesting that when departures occurred, the fish did not travel far. Future efforts will significantly expand the number of receivers at Conch Reef such that fish movement behavior relative to the reserve boundaries can be quantified with increased temporal and spatial resolution. (PDF contains 22 pages.)

Synopsis of biological data on the Nassau grouper, Epinephelus striatus (Bloch, 1792), and the jewfish, E. itajara (Lichenstein, 1822)

Information on the biology, fishery resources, explotiation patterns, management, and conservation status of two species of grouper-the Nassau grouper, Epinephelus striatus, and the jewfish, Epinephelus itajara-is compiled, reviewed, and analyzed. (PDF file contains 68 pages.)

Charles I : unhero of royalist poetry

During the English Civil War, Charles I appeared as a character in Royalist poetry, both directly and allegorically. These depictions drew on ancient Roman epic poems, particularly Lucan’s De Bello Civili, in their treatment of the subject matter of civil war and Charles as an epic hero. Though the authors of these poems supported Charles, their depictions of him and his reign reveal anxiety about his weakness as a ruler. In comparison to the cults of personality surrounding his predecessors and the heroes of De Bello Civili, his cult appears bland and forced. The lack of enthusiasm surrounding Charles I may help to explain his downfall at the hands of his Parliamentarian opponents.  

Cartas enviadas por Charles Becker y por su viuda (M. L. Becker) entre 1929 y 1942

1 tarjeta postal y 1 carta (manuscritas) ; entre 140x90mm y 215x275mm

Metaphysics in the Work of Charles Darwin

It is not hard to see how two visions of nature are intertwined in Darwin’s Journal of Researches: one vision, the province of romantic authors depicting the sentiments awakened by certain landscapes, the other, the domain of natural scientists describing the world without reference to the aesthetic qualities of the scenery. Nevertheless, analyses of this double perspective in Darwin’s work are relatively rare. Most scholars focus on Darwin, the scientist, and more or less ignore the aesthetic aspects of his work. Perceiving the gradual transformation of Darwin’s world view, however, depends on analyzing the two different modes in which Darwin approached and perceived the world. While one can, on occasion, find commentaries on the beauty of the natural world in Darwin’s early work, the passage of time produces a modification in the naturalist’s manner of perceiving nature. This does not, however, mean that Darwin ceases to find beauty in nature; on the contrary, the disenchantment, in Max Weber’s words, that Darwin’s theory produces should not be understood in a pejorative, but rather in a literal sense. The theory of evolution, in effect, divests nature of its magical character and begins to explain it in terms of natural selection, according it, in the process a new and more intense attraction. In the present work, the metaphysical implications of this new vision of the world are analyzed through the eyes of its discoverer.

Charles Darwin y la Descripción de la Naturaleza

Comunicación presentada en el I Congreso de la Asociación Iberoamericana de Filosofía de la Biología (Valencia)

Imigração, negócios e poder: o comerciante português como agente dinâmico das relações internacionais Brasil-Portugal (1850/ 1875)

Este trabalho contemplou a análise das relações entre imigração, negócios e poder a partir da inserção do imigrante português no comércio da cidade do Rio de Janeiro entre 1850 e 1875. Nesse período, as relações internacionais entre Brasil e Portugal caracterizaram-se essencialmente por duas forças sociais: o fluxo migratório e o comércio. Através do intercruzamento de fontes documentais, identificou-se o perfil dos membros da elite mercantil portuguesa instalada na capital do Império brasileiro, bem como suas estratégias de ascensão econômica e projeção política junto à sociedade e aos Estados de Portugal e Brasil. Avaliou-se, ainda, o estímulo causado pelas trajetórias de sucesso na realimentação do movimento de emigração portuguesa. Concluiu-se que os imigrantes lusos, através do comércio, tornaram-se agentes dinâmicos das relações bilaterais Brasil-Portugal.

Os médicos e os embates do cientificismo na obra de Eça de Queirós (1875-1888)

Durante a segunda metade do século XIX, a atenção dada à ciência, que ganha então maior espaço na literatura, cresce muito. A Medicina estava em ascensão, e grande foi a sua importância no controle de enfermidades e redução do número de mortes prematuras. Além disso, os médicos ainda enfrentavam, apesar de tudo, dificuldades para se estabelecerem socialmente, uma vez que ainda existia o costume da busca de curandeiros, boticários e benzedeiras. Eça de Queirós, que, neste particular, traça um panorama diversificado e valioso da situação portuguesa, aborda o cientificismo, colocando-o em xeque, juntamente com o discurso religioso, ambos ainda com tanto prestígio na esfera dos assuntos públicos. Muitos estudiosos ainda veem na obra de Eça um caráter exclusivamente doutrinador, e no discurso científico percebem apenas um contraponto ao discurso religioso. A análise de três obras que trazem médicos como personagens secundários ou como protagonistas na trama mostra que não era somente este o papel do cientificismo queirosiano em O Primo Basílio, O Crime do Padre Amaro e Os Maias. Através dos médicos dos romances da fase mais marcadamente realista-naturalista de Eça (Julião, Dr. Gouveia e Carlos Eduardo) é possível perceber o quanto Eça avança de posições mais doutrinárias (da década de 70) para posições mais complexas e problematizadoras (da década de 80)

The Executive Council of the Charles Darwin Foundation 1964-1988

From a special issue: A Brief History of the Charles Darwin Foundation for the Galapagos Islands 1959-1988