996 resultados para República de Angola
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Disponível, também, em formato impresso e digital (MOBI e PDF e EPUB)
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Este libro pretende reunir la información disponible sobre la distribución geográfica precisa de los peces continentales del país. Hasta el momento esta información se encontraba dispersa en varios cientos de publicaciones, muchas de ellas díficiles de encontrar por ser antiguas, estar publicadas principalmente en revistas extranjeras que se reciben en unas pocas -o a veces ninguna- biblioteca o estar en publicaciones de difusión restringida. A raíz de lo anterior, esta tarea sólo pudo ser posible gracias a la colaboración de los autores de los trabajos recopilados, y en particular a la ayuda de la cátedra de Ictiología de la Universidad Nacional de La Plata que posee una gran mayoría de la bibliografía utilizada. Es mi intención continuar trabajando en la actualización permanentemente de esta base de datos. Por este motivo, y en la medida en que esta recopilación les resulte de utilidad, les solicito a todos los que trabajan en las distintas facetas, básicas y aplicadas, de la ictiología, que envíen copias de sus trabajos publicados a la dirección: Impresos Fundación Oga Programa Conservación de Peces Continentales Alem 272 - 2900 San Nicolás de los Arroyos Buenos Aires, Argentina Formato eléctronico jliotta@fundacionoga.org.ar (PDF tiene 654 paginas.)
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A review and analysis of the exotic fish distribution and introduction is made using bibliographic information. Both lentic and lotic environments were considered. In order to classify the state of the populations, different categories were defined as follow: permanent, probably permanent, reported and unknown. Results show that 15 species were attempted to be introduced from 1904. Only 8 of them arose an successfull aclimatization: raimbow trout, brown trout, lake trout, landlocked salmon, carp, goldfish, and mosquitofish. For the salmonids, ecological features were analized, in order to explain the disappearence or the permanence in some regions. (Document contains 90 pages)
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A limnological and fish survey program was developed on 110 lakes and reservoirs of Argentina during the summers of 1984 to 1987. Here we exclude lakes without fish. Lakes and reservoirs were visited once each, except for six situated in Chubut Province that were studied seasonally over the course of two years. Here we present raw data used to evaluate the potential fish yield of Argentinian lakes and reservoirs. (Document contains 56 pages.)
Evaluación del rendimiento pesquero potencial de la República Argentina: II. Evaluación por regiones
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A limnological and fish survey program was developed in 110 lakes and reservoirs of Argentina during the summers of 1984 to 1987. Lakes and reservoirs were visited once, except for six situated in the Chubut Province that were studied seasonally over the course of two years. The sampling surveys were performed by the "Instituto Nacional de Investigación y Desarrollo Pesquero" and the "Provincia de Chubut". Here we present preliminary results of potential fish yield assessment on a regional basis, using empirical models. (Document contains 11 pages.)
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Age and growth of populations of three fish species from sixteen lakes and reservoirs situated in the Patagonian Andean and the Patagonian Plateau Region (Argentina) were studied. They included two native species, the Patagonian smallmouth perch. (Percichthys trucha) and the Patagonian silverside (Patagonina hatcheri) and the introduced rainbow trout (Oncorhynchus mykiss). For the three species backcalculated lenght at age was obtained from scale readings. Von Bertalanffy growth curves were usually adjusted to data. For the three species, faster growth was related with lake productivity. (Document contains 38 pages.)
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Trata da análise do veto aposto à Lei nº 12.764/12 que institui a Política Nacional de Proteção dos Direitos da Pessoa com Transtorno do Espectro Autista; e altera o § 3o do art. 98 da Lei no 8.112, de 11 de dezembro de 1990, com o objetivo de verificar se há, de fato, vedação à iniciativa parlamentar no caso em questão.
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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.
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Parte 1 - - Atos do Poder Legislativo
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Parte 1 - Atos do Poder Legislativo
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Parte 1 - Atos do Poder Legislativo.
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Parte 1 - Atos do Poder Legislativo.
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Parte 1 - Atos do Poder Legislativo.
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Parte 1 - Atos do Poder Legislativo.