Consulta: subjectFacets:"Potential yield"
Registros recuperados: 9
Data/hora: 02/06/2024 18:58:31

Programa en Basic para la estimación del rendimiento climático máximo = Program in basic to estimate the maximum climatic yield
Provedor de dados: 32
Autores: Campos Aranda, Daniel Francisco.
En este trabajo se presenta un algoritmo computacional desarrollado para hacer expedita la aplicación del método propuesto por la FAO para la estimación del rendimiento climático máximo de cualquiera de los cinco cultivos siguientes: alfalfa (Medicago sativa), maíz (Zea mays L.), sorgo (Sorghum bicolor L. Moench) y trigos de invierno y de primavera (Triticum spp.). Tal método está basado en el criterio desarrollado por el Instituto Internacional de Mejoramiento y Recuperación de Tierras, de Wageningen, Holanda. El método se aplica mediante un procedimiento que estima variables y parámetros climáticos y del cultivo, por medio de una serie de tabulaciones; por ello, éstas se representaron mediante ecuaciones de tipo polinomial y senoidal obtenidas por...
Tipo: Artículo
Palavras-chave: Agroclimatología; Rendimiento potencial; Cultivos; Agroclimatology; Crops; Potential yield.
Ano: 1996
URL: http://hdl.handle.net/10521/1754

Estimation du stock naturel d'ormeaux (Haliotis tuberculata) dans la region de Saint-Malo.
Provedor de dados: 5
Autores: Clavier, J; Richard, O.
Abundance and biomass of an unexploited ormer population in the vicinity of Saint-Malo (northern Brittany) are estimated using a stratified sampling technique. Examinations are made be diving at 200 sites. The mean biomass of the population is about 400 tons but the stock is not evenly distributed over the studied area: the greatest densities are observed on schist substrate. Size and weight frequency distribution reveal a "top-heave" structure due to an accumulation of old individuals with low production.
Tipo: Text
Palavras-chave: Haliotis tuberculata; Marine mollusks; Length weight relationships; Potential yield; Stock assessment.
Ano: 1984
URL: http://archimer.ifremer.fr/doc/1984/publication-1793.pdf

Abundancia relativa y rendimiento máximo sostenible de la merluza común (Merluccius hubbsi)
Provedor de dados: 20
Autores: Otero, H.O.
The statistics provided by the Argentinean Fishing Vessel and the biological data collected by scientist in the last eleven years, allow us to estimate different aspects of the population dynamics of the common hake (Merluccius hubbsi). This work deals with the relative abundance and the maximal sustainable yield of this species, considering the bonaerense stock of the Southewest Atlantic. Analyzing the effective fishing density, concluding remarks can be made. The high catches of 1967 (more than 600.000 tons.)made by the Russian Fleet, affected the fishing density in 1968. Since 1969, the resource recovered the high density level as a consequence of a decrease in the catches and in the fishing effort, but vulnerability of the stock is shown.
Tipo: Journal Contribution
Palavras-chave: Catch/effort; Potential yield; Hake fisheries.
Ano: 1980
URL: http://hdl.handle.net/1834/2061

Abondonce relative et estimation de la biomasse des petits pelagiques des eaux tunisiennes
Provedor de dados: 20
Autores: Hattour, A.; Ben Abdallah, L.; Guennegan, Y.
Within the frame of the National Program (PNM), 'Assessment of Marine Tunisian Resources' (1996-1999), two prospecting surveys on small pelagic fishes, have been led in narrow collaboration with French Institute IFREMER. Their objectives were to specify the relative fishes abundance, their spatial-temporal variability but also to quantify the maximum sustainable yield (MSY) of this resource. A third important goal was to familiarize a Tunisian scientist team, with numerical methods and data processing used during the cruises (reading of echograms, treatments of data, etc.) in stocks assessment. It is known that the indirect stocks assessment methods of small pelagic species is not reliable, reason for which we opted to apply echo - integration techniques....
Tipo: Journal Contribution
Palavras-chave: Abundance; Biomass; Fishery surveys; Pelagic fisheries; Potential yield; Stock assessment; Biomass; Stock assessment; Pelagic fisheries; Http://aims.fao.org/aos/agrovoc/c_926; Http://aims.fao.org/aos/agrovoc/c_24251; Http://aims.fao.org/aos/agrovoc/c_5659.
Ano: 2004
URL: http://hdl.handle.net/1834/4237

Abundancia relativa y rendimiento máximo sostenible de la merluza común (Merluccius hubbsi)
Provedor de dados: 20
Autores: Otero, H.O.
The statistics provided by the Argentinean Fishing Vessel and the biological data collected by scientist in the last eleven years, allow us to estimate different aspects of the population dynamics of the common hake (Merluccius hubbsi). This work deals with the relative abundance and the maximal sustainable yield of this species, considering the bonaerense stock of the Southewest Atlantic. Analyzing the effective fishing density, concluding remarks can be made. The high catches of 1967 (more than 600.000 tons.)made by the Russian Fleet, affected the fishing density in 1968. Since 1969, the resource recovered the high density level as a consequence of a decrease in the catches and in the fishing effort, but vulnerability of the stock is shown.
Tipo: Journal Contribution
Palavras-chave: Catch/effort; Potential yield; Hake fisheries.
Ano: 1980
URL: http://hdl.handle.net/1834/5456

Estudio de la estructura de población del mero (Acanthistius brasilianus, Cuvier   Valenciennes); patrones de distribución, biomasa y rendimiento potencial
Provedor de dados: 20
Autores: Di Bussolo, R.A.; Minotti, P.G.
Tipo: Theses and Dissertations
Palavras-chave: Population structure; Potential yield; Biomass; Size distribution.
Ano: 1980
URL: http://hdl.handle.net/1834/4191

Estado de situación de los recursos pesqueros del Golfo San Matías, sus pesquerías, especies asociadas y ambiente: informe ad hoc para la evaluación preliminar de las pesquerías marinas de Río Negro con vistas a la certificación de su sustentabilidad
Provedor de dados: 20
Autores: Coller, M.; Osovnikar, P.; Narvarte, M.; Perier, R.; González, R.A.; Di Giácomo, E.; Morsan, E.M.; Braicovich, P.; Curtolo, L.; Ocampo, M.
Se realiza una sinopsis del estado de situación de los recursos pesqueros del Golfo San Matías, de sus pesquerías y especies asociadas a las mismas y del ecosistema marino. El objetivo de este informe es presentar información histórica y actualizada sobre los recursos pesqueros y las pesquerías marinas de Río Negro, a los fines de su empleo como guía de análisis para la evaluación de las mismas con vistas a la potencial certificación de una gestión sustentable de las mismas a partir de los estándares del Marine Stewardship Council (MSC). Se presenta información sobre la organización y estructura del sector institucional y del marco legal en el que se desarrolla la actividad. Se desarrolla una caracterización de las pesquerías a partir de diferentes...
Tipo: Report
Palavras-chave: Fishery resources; Fishery management; Clam fisheries; Coastal fisheries; Biodiversity; Environments; Associated species; Yield; Potential yield; Fishery regulations; Certification; Standards; Sustainability; Fishing fleet; Fishery management; Certification; Fishery resources; Coastal fisheries; Biodiversity; Sustainability.
Ano: 2004
URL: http://hdl.handle.net/1834/3719

Abondance relative et estimation de la biomasse des petits pélagiques des eaux tunisiennes
Provedor de dados: 20
Autores: Ben Abdallah, L.; Hattour, A.; Guennegan, Y.
Deux  campagnes de prospection sur les petits pélagiques s'inscrivant dans le cadre du Programme National Mobilisateur (PNM), "Evaluation de ressources pélagiques et démersales des eaux tunisiennes" (1996-1999) ont été menée en étroite collaboration avec l’Institut Français de Recherche et d’Exploitation de la Mer (IFREMER). Ces campagnes ont pour objectifs de préciser l'abondance relative des petits pélagiques et leur variabilité spatiaux-temporelles mais également de quantifier les potentiels exploitables des stocks des animaux aquatiques préalablement définis, et surtout de familiariser l’équipe des scientifiques tunisiens, aux méthodes numériques et informatiques utilisées en participant à la lecture des échogrammes et aux traitements des données des...
Tipo: Journal Contribution
Palavras-chave: Abundance; Biomass; Pelagic fisheries; Potential yield; Stock assessment; Biomass; Stock assessment; Pelagic fisheries; Http://aims.fao.org/aos/agrovoc/c_926; Http://aims.fao.org/aos/agrovoc/c_24251; Http://aims.fao.org/aos/agrovoc/c_5659.
Ano: 2004
URL: http://hdl.handle.net/1834/1163

Calibration and testing of an agrometeorological model for the estimation of soybean yields in different Brazilian regions
Provedor de dados: 1
Autores: Monteiro, Leonardo Amaral; Universidade de São Paulo; Sentelhas, Paulo Cesar; Universidade de São Paulo.
This study was designed to calibrate and test an agrometeorological model over 18 growing seasons in three soybean production areas in Brazil: Passo Fundo (Rio Grande do Sul State), Londrina (Paraná State), and Dourados (Mato Grosso do Sul State).The soybean potential yield (Yp) was determined by two methods: estimated using the FAO Agroecological Zone Model or based on the maximum yield published by the Brazilian Institute of Geography and Statistics (IBGE), increased by 10, 20 and 30%.The estimate of actual yield (Ya) was calculated by correcting Yp for the relative water deficit at different growth stages. The results showed that the best performance was obtained when the Yp was represented by the maximum yield increased by a certain percentage. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 5.01.05.00-0 Glycine max; Potential yield; Actual yield; Water deficit; Simulation models Agrometeorologia.
Ano: 2014
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/17485