Bibliografía de los peces de agua dulce de Argentina. Suplemento 1993.

La presente lista constituye un nuevo aporte a la información de los peces de agua dulce de la Argentina (López et al., 1981, 1982, 1986 y 1989). Por razones de economía de espacio, hemos variado el esquema seguido en las anteriores, no mencionamos los resúmenes de las diferentes reuniones, ni las especies citadas en el texto de los trabajos incluidos. Por otra parte, no consideramos las contribuciones de nuestros colegas uruguayos (con excepción de aquellas referidas a cuerpos de agua compartidos), ya que temimos caer en olvidos involuntarios que, con el tiempo, se transformen en situaciones enojosas. (PDF tiene 15 paginas.)

Bibliografía de los peces de agua dulce de Argentina y Uruguay. Sup. 1988.

La presente lista constituye el tercer suplemento a las bibliografías de los peces de Agua Dulce de la Argentina y Uruguay (López et al., 1981, 1982, 1986). Los criterios que sustentan la inclusión de los trabajos son los señalados en 1981. Se incluyen en este trabajo los artículos posteriores a 1986 y los que han pasado inadvertidos en las anteriores. Se mencionan las especies citadas, salvo cuando figuran en el título del trabajo o su número es excesivo. (PDF tiene 36 paginas.)

Nuevas localidades para peces de agua dulce de la República Argentina. I.

Four species of Characiformes and five species of Siluriformes are recorded from ten new argentine localities. New distributional data are discussed. Relevant morphological measurements and some comments are added.

Sternopygus macrurus (Bloch y Schneider) (Teleostomi, Sternopyginae). Primera cita para la Argentina.

Revisando la colección de gimnótidos del MACN, se hallaron dos ejemplares de Sternopygus macrurus procedentes del Riacho de Oro, afluente del río Paraguay, en la provincia de Formosa. Se amplío la distribución de esta especie al norte de la Argentina.

An Extension of Self-Organizing Maps to Categorical Data

Self-organizing maps (SOM) have been recognized as a powerful tool in data exploratoration, especially for the tasks of clustering on high dimensional data. However, clustering on categorical data is still a challenge for SOM. This paper aims to extend standard SOM to handle feature values of categorical type. A batch SOM algorithm (NCSOM) is presented concerning the dissimilarity measure and update method of map evolution for both numeric and categorical features simultaneously.

Contributions to the Geology and Paleontology of the Canal Zone, Panama, and geologically related areas in central America and the West Indies. Part 11: The biologic character and geologic correlations of the sedimentary formations of Panama in their relation to the geologic history of Central America and the West Indies

The paper presents: 1) biologic summaries for each of the formations for which paleontologic data are available, with brief discussions of the geologic age; 2) geologic correlations of the formations and the distribution of their age-equivalents in Central America, the West Indies, and the southeastern United States; 3) an outline of the paleogeography of middle America. The biologic summaries are based on the paleontologic memoirs in this vol. by Messars. Howe, Berry, Chuchman, Jackson, Canu and Bassler and Pilsbry, Miss Rathbun and myself.

Apontamentos sobre os limites entre o Brazil e a republica Argentina

Conteudo parcial: anexo : tratados de limites, na América, entre Portugal e Espanha

Questão territorial com a Republica Argentina : limites do Brazil com as Guyanas Franceza e Ingleza

Referência: Diccionario Bibliographico Brazileiro / Sacramento Blake, 1898, v. 4, p. 199.

Automated, objective texture segmentation of multibeam echosounder data - Seafloor survey and substrate maps from James Island to Ozette Lake, Washington Outer Coast

Without knowledge of basic seafloor characteristics, the ability to address any number of critical marine and/or coastal management issues is diminished. For example, management and conservation of essential fish habitat (EFH), a requirement mandated by federally guided fishery management plans (FMPs), requires among other things a description of habitats for federally managed species. Although the list of attributes important to habitat are numerous, the ability to efficiently and effectively describe many, and especially at the scales required, does not exist with the tools currently available. However, several characteristics of seafloor morphology are readily obtainable at multiple scales and can serve as useful descriptors of habitat. Recent advancements in acoustic technology, such as multibeam echosounding (MBES), can provide remote indication of surficial sediment properties such as texture, hardness, or roughness, and further permit highly detailed renderings of seafloor morphology. With acoustic-based surveys providing a relatively efficient method for data acquisition, there exists a need for efficient and reproducible automated segmentation routines to process the data. Using MBES data collected by the Olympic Coast National Marine Sanctuary (OCNMS), and through a contracted seafloor survey, we expanded on the techniques of Cutter et al. (2003) to describe an objective repeatable process that uses parameterized local Fourier histogram (LFH) texture features to automate segmentation of surficial sediments from acoustic imagery using a maximum likelihood decision rule. Sonar signatures and classification performance were evaluated using video imagery obtained from a towed camera sled. Segmented raster images were converted to polygon features and attributed using a hierarchical deep-water marine benthic classification scheme (Greene et al. 1999) for use in a geographical information system (GIS). (PDF contains 41 pages.)

Bibliografía sobre “Aspectos históricos, sociales, económicos, legales de la Pesca Argentina”

La siguiente bibliografía se realiza a modo de cumplimentar el trabajo final de la cátedra Bibliografía y Selección de Textos. El siguiente repertorio bibliográfico tiene como fin facilitar el acceso y localización del material sobre aspectos históricos, económicos, legales y sociales de la Pesca en la Argentina. Dicho trabajo fue elaborado para satisfacer las necesidades de la Biblioteca de INIDEP, ya que es de su interés la recopilación de todo el material dentro de una misma bibliografía. El objetivo de esta compilación es satisfacer la creciente demanda de los usuarios de dicha biblioteca, dentro del grupo de usuarios encontramos: científicos, biólogos, oceanógrafos, veterinarios, empresarios, pesqueros, alumnos de diferentes carreras, como Biología, Geografía, Economía; incluyendo además, alumnos del tercer ciclo de EGB. (PDF tiene 61 paginas.)

Peces continentales de la Argentina: Iconografía. Brycon orbignyanus.

The goal of this work is to present a collection of drawings and figures depicting the species present in our country. To achieve this, our main sources of information have been the works of Ringuelet et al. (1967), Reis et al. (2003), and López et al. (2003; 2006), as well as the online databases of W. N. Eschmeyer and Fish Base. Each species has an individual factsheet with selected images, including some from anatomical research works. All the works referenced are mentioned in each factsheet. This is an open-ended publication. As such, it will require permanent updating, which will depend on the good will and collaboration of the ichthyological community. As compilers, we understand that this contribution not only provides valuable information, but also highlights the work of men and women who are part of the rich history of our national and regional ichthyology.