979 resultados para 1988-1994


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This report comprises a mean weekly summary of the raw data of the fish population of the Stocks Reservoir major tributaries in conjunction with completed maps, diagrams, tables and figures. These cover the Stocks tributary stream survey, the Fishery and fish plate impingement. This paper does not constitute a final report which the author intends to submit as a Ph.D. thesis. However, it does present much of the data and analysis completed in its final draft, which may be of immediate use and benefit to the Authority.

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The aim of this study was to assess the suitability of Foxhouses and Grizedale Becks as nursery habitat for juvenile salmon. A comprehensive fish stock assessment survey of the Wyre catchment was carried out by the NRA in 1992. This survey found that juvenile salmon were absent from two sites studied in Foxhouses Beck. In one site in Grizedale Beck, 0+ salmon were found at very low densities. Juvenile trout were found in all three sites studied in 1992. On the basis of the results of the 1992 survey, these two becks were stocked in 1994 with 0+ salmon reared from Lune broodstock at the NRA's Witcherwell Hatchery. These salmon were stocked at a known density, following a pre-stocking survey. This report examines and compares the results of the pre-stocking survey consisting of fourteen sites in the two becks, carried out between 12/04/94 and 27/04/94 and a post- stocking survey of six sites, carried out between 12/10/94 and 19/10/94. Flow, habitat and in-river obstructions have been shown to affect juvenile salmonid densities. A habitat description is provided for each site surveyed during the course of this study.

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This report provides national and regional developments, statistics on fisheries finance, including income and expenditure, salmon and sea trout catches, including rod and line, commercial catches, and angler log book returns, monitoring and special projects, including salmon microtagging, salmon egg survival in Swanside Beck, and fish stock assessments, one with hydroacoustics, and one of surveys of different areas in Cumbria. The appendix includes a summary of fish statistics for 1994.

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This fisheries report summarises developments of the year 1988 in the region of the North West Water Authority. It provides catch statistics, rod and line and commercial for salmon and sea trout, fish culture and hatchery operations, restocking with trout and freshwater fish, upstream fish movement recorded at authority fish counters, counts of salmon and sea trout spawning redds, fish mortalities, licences issued, and prosecutions. Among the streams that are covered in the report are the River Lune, River Kent, River Leven, River Duddon, River Ribble, River Wyre, River Derwent and River Esk.

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The bibliography contains some 116 citations, including unpublished reports and manuscripts, regarding Lake Kariba. Most of the reports are from the Zambia/Zimbabwe SADC Fisheries and Lake Kariba Fisheries Research Institute. The citations are listed in alphabetical order according to author.

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The document gives an account of the activities carried out during the year 1988 by the Lake Kariba Fisheries Research Institute and includes individual reports of the various projects conducted during the year. They include: the Zambia/Zimbabwe Lake Kariba Fisheries Research and Development Project; a comparative study of genetic growth determinance of Limnothrissa miodon; a comparative study of consumption rates and preference for some species of aquatic macrophytes by Tilapia rendalli; an evaluation of inshore stocks, and external variables causing variation in composition abundance and distribution; Willards cage-culture pilot project; and, aspects of the ecology of the phytobenthic communities in Lake Kariba - PhD thesis.

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The report provides an account of the activities carried out by the Lake Kariba Fisheries Research Institute during the year 1994 under the following headings: Institute finances; Staffing and staff training; Staff housing; Infrastructure and institute expansion; Vehicles and vessels; and, Fisheries and fishery management. Individual reports regarding the various project activities conducted during the year are also included.

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Statistics are presented for the Zimbabwe fisheries in Lake Kariba for the year 1988. Fish landings, fish catches and catch/effort data are given for the pelagic and inshore fishery sectors.

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The report provides catch records for the Kapenta and inshore fisheries in the Zimbabwean waters of Lake Kariba for the year 1994. Kapenta usually constitute about 90% of the total catch from Lake Kariba; for statistical purposes catches are recorded for the 5 hydrological basins - Mlibizi, Binga, Sengwa, Bumi and Kariba. Whereas kapenta represent a unit stock which is harvested by both Zimbabwe and Zambia, the artisanal fishery exploits inshore species which generally occupy water less than 10m deep along the shoreline, considered to be 2 separate stocks. The main species in the inshore fishery are Oreochromis mortimeri, Sargochromis codringtonii, Tilapia rendalli, Labeo altivelis, Hydrocynus vittatus, Mormyrus longirostris, Clarias gariepinus and Synodontis zambezensis.

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O texto constitucional brasileiro de 1988 sofreu diversas alterações em matéria tributária e financeira. Praticamente todas as emendas constitucionais tiveram sua constitucionalidade questionada em razão de alegadas violações aos limites materiais do poder de reforma constitucional. O presente trabalho procura delinear alguns parâmetros para a construção de contornos mais precisos dos limites do poder de reforma constitucional em matéria tributária e financeira. A delimitação de tais parâmetros de reforma, além de contribuir para o exercício da jurisdição constitucional na análise da constitucionalidade das emendas constitucionais, permite que sejam mais bem delineadas quais as decisões fundamentais que a Constituição adotou na seara financeira e tributária, relacionadas ao federalismo, aos direitos fundamentais e à separação de poderes.

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The purpose of this report is to record key events/data and to outline the activities of the NRA Central Area Fisheries Function during 1994. The Rivers looked at include the Ribble, Lune, Hodder and Wyre. The issues that the report looks at includes Hydrological and meterological data, catch data for salmon and sea trout, fish kills, and fish stocking. It also lists the Micro-tag returns for 1994 and the six key objectives that the Central Area Fisheries Function has set itself for 1995. The report uses a range of different graphs and tables to display their data.

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Microsatellites are codominantly inherited nuclear-DNA markers (Wright and Bentzen, 1994) that are now commonly used to assess both stock structure and the effective population size of exploited fishes (Turner et al., 2002; Chistiakov et al., 2006; Saillant and Gold, 2006). Multiplexing is the combination of polymerase chain reaction (PCR) amplification products from multiple loci into a single lane of an electrophoretic gel (Olsen et al., 1996; Neff et al., 2000) and is accomplished either by coamplification of multiple loci in a single reaction (Chamberlain et al., 1988) or by combination of products from multiple single-locus PCR amplifications (Olsen et al., 1996). The advantage of multiplexing micro-satellites lies in the significant reduction in both personnel time (labor) and consumable supplies generally required for large genotyping projects (Neff et al., 2000; Renshaw et al., 2006).

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In recent years, a decrease in the abundance of bluefish (Pomatomus saltatrix) has been observed (Fahay et al., 1999; Munch and Conover, 2000) that has led to increased interest in a better understanding the life history of the species. Estimates of several young-of-the-year (YOY) life history characteristics, including the importance and use of estuaries as nursery habitat (Kendall and Walford, 1979) and size-dependant mortality (Hare and Cowen, 1997), are reliant upon the accuracy of growth determination. By using otoliths, it is possible to use back-calculation formulae (BCFs) to estimate the length at certain ages and stages of development for many species of fishes. Use of otoliths to estimate growth in this way can provide the same information as long-term laboratory experiments and tagging studies without the time and expense of rearing or recapturing fish. The difficulty in using otoliths in this way lies in validating that 1) there is constancy in the periodicity of the increment formation, and 2) there is no uncoupling of the relationship between somatic and otolith growth. To date there are no validation studies demonstrating the relationship between otolith growth and somatic growth for bluefish. Daily increment formation in otoliths has been documented for larval (Hare and Cowen, 1994) and juvenile bluefish (Nyman and Conover, 1988). Hare and Cowen (1995) found ageindependent variability in the ratio of otolith size to body length in early age bluefish, although these differences varied between ontogenetic stages. Furthermore, there have been no studies where an evaluation of back-calculation methods has been combined with a validation of otolithderived lengths for juvenile bluefish.

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Esta dissertação buscou compreender o papel educativo desempenhado pela Seção de Extensão Cultural (SEC) do Museu Nacional entre os anos de 1943 a 1946, período em que o educador e signatário do Manifesto dos Pioneiros da Educação Nova Paschoal Lemme ocupou a chefia desta Seção. Interessou-nos estudar os aspectos que contribuíram para o fortalecimento da função educativa do Museu, buscando identificar possíveis pontos de aproximação entre as atividades museais desenvolvidas pela SEC e as aspirações pedagógicas do movimento da Escola Nova. Criada por Regimento Interno de 1941, durante a gestão institucional da antropóloga Heloísa Alberto Torres, este departamento estruturava-se em três serviços específicos: o Serviço de Exposições, o Serviço de Publicações e o Serviço de Assistência ao Ensino, nos quais se proclamava como objetivo comum a vulgarização dos conhecimentos científicos e a difusão das estratégias de um ensino dinâmico e prático dos saberes científicos. Auxiliou-nos na apreensão deste objeto o diálogo com as análises construídas por Santos (2008), Berrio (2001), Peixoto (2005), Chagas (2009), Meneses (1994) e Pessanha (1988) acerca da educação como um processo de preservação, produção e comunicação de conhecimentos constitutivos dos patrimônios culturais, consolidando-se, a partir desta perspectiva, não apenas em espaços ditos escolares de formação, mas também em espaços não formais de ensino, a exemplo dos museus e de outras instituições de Cultura. As pesquisas de Sá e Domingues (1996), Pereira (2010), Sily (2012), Sily; Santos (2011), Duarte (2004) e Rangel (2011) foram fundamentais para a compreensão das dimensões e funções educativas do Museu Nacional. Constatamos que a Seção de Extensão Cultural se constituiu entre os anos de 1943 a 1946, como um veículo de difusão dos ideais museais e pedagógicos do movimento da Educação Nova, através da publicação de periódicos destinados especialmente para o público escolar, de aulas práticas realizadas no interior do Museu Nacional, além de visitas de especialistas a instituições de ensino com o objetivo de organizar museus escolares.