79 resultados para Henríquez Ureña, Pedro, 1946-1996
em Aquatic Commons
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Proceedings of the Fifth Annual Meeting Agenda Report of Opening Session Report of Governing Council Meetings Reports of Science Board and Committees Science Board Working Group 5: Bering Sea (Final Report) Working Group 9: Subarctic Pacific Monitoring Report of the First Meeting Report of the Second Meeting Biological Oceanography Committee Working Group 11: Consumption of Marine Resources by Marine Birds and Mammals Fishery Science Committee Working Group 12: Crabs and Shrimps Marine Environmental Quality Committee Working Group 8: Practical Assessment Methodology Physical Oceanography and Climate Committee Working Group 10: Circulation and Ventilation in the Japan Sea /East Sea and its Adjacent Areas Technological Committee on Data Exchange Finance and Administration Report of Finance and Administration Committee Assets on 31st of December, 1995 Income and Expenditures for 1995 Budget for 1997 Composition of the Organization Officers, Delegates, Finance and Administration Committee, Science Board, Secretariat, Scientific and Technical Committees List of Participants List of Acronyms (Document has 163 pages.)
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Leonard Carpenter Panama Canal Collection. Photographs: Dredging, Soldiers, and Ships. [Box 1] from the Special Collections & Area Studies Department, George A. Smathers Libraries, University of Florida.
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Leonard Carpenter Panama Canal Collection. Photographs: Views of Panama and the Canal. [Box 1] from the Special Collections & Area Studies Department, George A. Smathers Libraries, University of Florida.
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Leonard Carpenter Panama Canal Collection. Photographs: Views of Panama and the Canal. [Box 1] from the Special Collections & Area Studies Department, George A. Smathers Libraries, University of Florida.
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The general circulation pattern in the western boundary of the SW Atlantic is dominated by the opposite flows of Malvinas (-Falkland)and Brazil Current. In the Confluence region both currents separate from the continental slope and flow offshore creating an area of strong contracts and complex dynamics. The shelf-break fronts off Argentina mark the transition between shelf waters of mixed origin and nutrient rich Malvinas waters. Two areas deserve special attention due to the steep gradients introduced by the outflow of important sources of continental waters: the Rio de la Plata and the Magellan Strait to the north and south of the study area. Characteristics of the front is the high primary and secondary production, and the presence of important invertebrate and fish stocks that concentrate along the front to feed or spawn. The area comprises nearly 30 o/o (333 million U$S in 1995)of all Argentine catches of fish and squid. Resources in the area, beyond the EEZ limits, support international fisheries mainly of Russia, Poland and Spain. (Document contains 15 pages & figs)
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(PDF contains 96 pages.)
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Between 1981 and 1995, we published five bibliographic lists (López et al., 1981, 1982,1987, 1989 y 1995) that included the publications referred to Argentine freshwater fishes and related general information published since Ringuelet et al. (1967). We included Uruguayan papers until 1989, when it became apparent that our access to those materials was not complete. Other bibliographic collections were published on several subjects (López et al., 1991, 1993, y Ferriz et al., 1998). In the foreword to the 1995 list, López stated that it was difficult to assess the actual usefulness of the lists, since they were seldom quoted in research papers. This consideration, along with the wide success of electronic databases, caused us to discontinue the series, since its only goal had been to increase the knowledge and access to local research papers and foreign publications of interest to local researchers. Regrettably, our experience indicates that access to scientific literature is still, if not difficult, somewhat arbitrary. Apart from that, the continuous work on diverse research lines at División Zoología Vertebrados of Museo de La Plata leads to the accumulation of a multiplicity of information which may be sorted out for the use of others without much difficulty. At present, electronically-supported databases appear as the simplest way to do this. The future will show if this method is more efficient than the preceding one. In this issue we have included papers published between 1996 and 2002; and it is our purpose to update the list on a yearly basis. Papers included cover Argentine fish fauna and some related subjects of more general interest. Naturally, it is hardly surprising that some involuntary omissions will occur when addressing this subject. Any corrections and/or additions will be incorporated in following versions; and all information is most welcome.
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Polycyclic aromatic hydrocarbons, butyltins, polychlorinated biphenyls, DDT and metabolites, other chlorinated pesticides, trace and major elements, and a number of measures of contaminant effects are quantified in bivalves and sediments collected as part of the NOAA National Status and Trends (NS&T) Program. This document contains descriptions of some of the sampling and analytical protocols used by NS&T contract laboratories from 1993 through 1996. (PDF contains 257 pages)
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ENGLISH: These aspects of the schooling habits of the yellowfin and skipjack tuna may be investigated by means of the logbook records of the catches of individual sets of the nets of purse-seine vessels. For both purposes it must be assumed that a set is made, in each case, on a single school of fish. The study of school sizes based on these data requires the additional assumption either that the entire school is captured or that each set captures a constant fraction of the school upon which it is made. In this paper we report on the results of such investigations based on logbook records of the purse-seine fleet. SPANISH: Estos aspectos de los hábitos gregarios de los atunes aleta amarilla y barrilete pueden ser investigados a base de los registros de bitácora en que se anotan las pescas resultantes de cada una de las operaciones con la red de encierre que realizan los barcos rederos. Para ambos propósitos hay que suponer que las operaciones se efectúan, en cada caso, en un cardumen independiente. El estudio de los tamaños de los cardúmenes o manchas, a base de estos datos, requiere una suposición adicional: que el cardumen entero es capturado o, en su defecto, que en cada operación con la red se pesca una fracción constante de la mancha objeto de la pesca. En el presente artículo damos cuenta de los resultados de dichas investigaciones basadas en los registros de bitácora que lleva la flota de embarcaciones que utilizan redes de encierre. (PDF contains 47 pages.)
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This document is in Spanish. El capítulo I concentra información sobre los volúmenes de producción obtenidos en la fase primaria de la actividad (capturas y acuacultura). Las principales variables manejadas son: producción por principales especies, por destino de consumo, por litoral y por entidad federativa, así como su valor a precios de playa; se incorpora al final un conjunto de cuadros con series históricas de producción. En el capítulo 11, se presentan estadísticas sobre la transformación o industrialización de productos pesqueros. Los indicadores más representativos se refieren a materia prima procesada y producción obtenida, desagregándola por entidad federativa y principales líneas de producción, es decir, congelado, enlatado, reducción (elaboración de harina de pescado y aceites) y otros procesos. El capítulo 111 contiene las estadísticas sobre la fase de la comercialización y consumo de los productos provenientes de la pesca: disponibilidad, consumos (aparente y per-cápita), precios y balanza comercial pesquera, incluyendo series históricas sobre estos mismos indicadores. Enseguida, en el capítulo IV, se da a conocer información acerca de los principales activos disponibles en el sector, esto es, sobre la flota, planta industrial, instalaciones portuarias, granjas acuícolas comerciales y centros de acuacultura. Asimismo, aparecen las cifras de los empleos generados por la actividad y de los créditos otorgados al sector por la banca de desarrollo. El capítulo V resume información sobre las Normas Oficiales Mexicanas (NOM) vigentes y proyectos de NOM que conciernen a la actividad pesquera, así como de las vedas que se aplican en las diferentes pesquerías. En el capítulo VI se hace un compendio de las principales variables de la actividad pesquera mundial, en el que se puede apreciar la participación de México en la pesca internacional. En este caso, las estadísticas se basan en FAO, anuario estadísticas de pesca, 1994, vol. 78 capturas y desembarques y vol. 79 productos pesqueros, también en el Boletín Estadístico de Pesca, No. 34, estadísticas de las flotas de pesca, 1970, 1975, 1980, 1984-92, dado que son los últimos números de las series que se encuentran disponibles. La estructura del Anuario concluye con la presentación del anexo, que comprende el glosario de términos y la lista de las especies que integran cada una de las pesquerías para las cuales se presenta información desagregada. Catch statistics for Mexican waters 1996. (PDF has 213 pages.)