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| Registros recuperados: 275 | |
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| Belin, Catherine; Marcaillou-le Baut, Claire; Amzil, Zouher; Ledoux, Martial. |
| This document describes and harmonizes detection methods of diarrheic (DSP) and paralytic (PSP) phycotoxins, for the laboratories of the Direction of Coastal Environment of IFREMER, which work in the framework of the French Phytoplankton and Phycotoxins Monitoring Network. These toxins, produced by a few phytoplankton species which regularly occur in sea water, accumulate in shellfish, which become toxic. Analysis is performed on an extract of digestive gland (DSP), or of total flesh (PSP), of shellfish. The described methods are meuse-tests, which are, at the present time, the only methods available to be used in the framework of a monitoring network. The method for diarrheic toxins is not standardized, with a threshold adapted for monitoring purposes. At... |
| Tipo: Text |
Palavras-chave: Phycotoxines; Méthode de détection des toxines; Test-souris; Toxines diarrhéïques; DSP; Toxines paralysantes; PSP; Surveillance; Phycotoxins; Toxin detection method; Mouse-test; Diarrheic toxins; DSP; Paralytic toxins; PSP; Monitoring. |
| Ano: 1996 |
URL: http://archimer.ifremer.fr/doc/00429/54106/55438.pdf |
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| Littaye-mariette, Anne; Mazurie, Joseph. |
| Since 1989, an homogeneous Crassostrea gigas oyster stock has been distributed once a year on several rearing sites in Brittany (3 populations per site). The main quantitative and qualitative growth descriptors, which reflect water quality effects during the monitoring period, are estimated at the end of each year. The 1989-1992 analysis prompted us to describe various growth responses correlated to biotops: oyster production in open areas influenced by oceanic waters was fairly constant in quality, including size and Polydora sp. infestation. In contrast, oysters in estuarine areas, partly affected by eutrophication (e.g., Aber Benoît, Pen Bé), or with a low carrying capacity, were characterized by weight and Polydora sp. infestation heterogeneity. These... |
| Tipo: Text |
Palavras-chave: Polydora; Condition Index; Mortality; Growth; Monitoring; Oyster; Crassostrea gigas; Brittany; Polydora; Indice de condition; Mortalité; Croissance; Réseau; Huître; Crassostrea gigas; Bretagne. |
| Ano: 1993 |
URL: http://archimer.ifremer.fr/doc/1993/rapport-1639.pdf |
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| Moncada, F.; Medina, Y.; Nodarse, G.. |
| Se presentan los resultados obtenidos para la tortuga carey (Eretmochelys imbricata) en la plataforma cubana, a partir de los monitoreos en los dos sitios de captura comercial: Cocodrilo (Isla de la Juventud) y Nuevitas; entre 1995 y 2006. Se analizan algunos indicadores poblacionales como el comportamiento de la composición por talla, la talla media anual y la proporción sexual de los careyes capturados, así como el comportamiento de la captura comercial anual en los dos sitios. Se concluye que la talla media de los careyes capturados en la Isla de la Juventud y Nuevitas, se ha mantenido estable a lo largo del tiempo, con un predominio de las tallas menores en la Isla de la Juventud; y que la proporción por sexos favorable a las hembras muestra un... |
| Tipo: Journal Contribution |
Palavras-chave: Monitoring; Catch/effort; Marine turtles. |
| Ano: 2011 |
URL: http://hdl.handle.net/1834/4628 |
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| Medina, Y.; Moncada, F.; Nodarse, G.. |
| Se presentan los resultados obtenidos para la tortuga carey (Eretmochelys imbricata) en la plataforma cubana, a partir de los monitoreos en los dos sitios de captura comercial: Cocodrilo (Isla de la Juventud) y Nuevitas; entre 1995 y 2006. Se analizan algunos indicadores poblacionales como el comportamiento de la composición por talla, la talla media anual y la proporción sexual de los careyes capturados, así como el comportamiento de la captura comercial anual en los dos sitios. Se concluye que la talla media de los careyes capturados en la Isla de la Juventud y Nuevitas, se ha mantenido estable a lo largo del tiempo, con un predominio de las tallas menores en la Isla de la Juventud; y que la proporción por sexos favorable a las hembras muestra un... |
| Tipo: Journal Contribution |
Palavras-chave: Monitoring; Catch/effort. |
| Ano: 2011 |
URL: http://hdl.handle.net/1834/4145 |
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| Margoluis, Richard; Foundations of Success;; Stem, Caroline; Foundations of Success;; Swaminathan, Vinaya; Foundations of Success; vinaya@fosonline.org; Brown, Marcia; Foundations of Success;; Johnson, Arlyne; Foundations of Success;; Placci, Guillermo; Foundations of Success;; Salafsky, Nick; Foundations of Success; Nick@FOSonline.org; Tilders, Ilke; Foundations of Success;. |
| Every day, the challenges to achieving conservation grow. Threats to species, habitats, and ecosystems multiply and intensify. The conservation community has invested decades of resources and hard work to reduce or eliminate these threats. However, it struggles to demonstrate that its efforts are having an impact. In recent years, conservation project managers, teams, and organizations have found themselves under increasing pressure to demonstrate measurable impacts that can be attributed to their actions. To do so, they need to answer three important questions: (1) Are we achieving our desired impact?; (2) Have we selected the best interventions to achieve our desired impact?; and (3) Are we executing our interventions in the best possible manner? We... |
| Tipo: Peer-Reviewed Insight |
Palavras-chave: Adaptive management; Assumption; Effectiveness; Evaluation; Impact; Measure; Monitoring; Outcome; Planning; Results chains; Theory of change. |
| Ano: 2013 |
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| Vanneste, Maarten; Sultan, Nabil; Garziglia, Sebastien; Forsberg, Carl Fredrik; L'Heureux, Jean-sebastien. |
| In this paper, we present the current practice of investigations of seafloor instabilities and deformation processes, based on extensive research conducted over the last years, which sets the scene for future research activities in this field. The mapping of the continental margins and coastal areas with ever increasing resolution systematically reveals evidence of instabilities and deformation processes, both active and palaeo-features. In order to properly assess the hazards and risks related to these features, an integrated and multi-disciplinary approach is essential, but challenging. Such an approach consists of combining field data (geophysics, geology, sedimentology, geochemistry and geotechnical data) with numerical simulations constrained by... |
| Tipo: Text |
Palavras-chave: Marine geotechnics; Slope stability; Sediment failures; Fluid flow; Shear strength; Marine geophysics; Monitoring; Excess pore pressure; Site investigations. |
| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00173/28378/26692.pdf |
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| Camargo Neto,AF; Tallarico,E; Capriogli,MA; Soares,VE; Meireles,MV; Silva,GS. |
| The seasonality of Alphitobius diaperinus population was studied during different seasons during one year, in broiler facilities located in the center-north region of the State of São Paulo. Parasite counting was weekly carried out by the use of traps adapted from the modified model of Arends. During the experimental period, facilities were not submitted to chemical treatment, and the litter was changed between flocks. A lower number of adults and larvae was observed during autumn, with the peak registered in the summer. There was no significant difference between spring and winter averages (adults and larvae), and between spring and summer averages (adults). Average temperatures in the facilities varied from 23.4ºC (winter) to 27.1ºC (spring). The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alphitobius diaperinus; Broiler chickens; Monitoring; Seasonality. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2006000300008 |
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| Goatley, Christopher H. R.; College of Marine and Environmental Sciences, James Cook University; Australian Research Council Centre of Excellence for Coral Reef Studies; christopher.goatley@jcu.edu.au; Fox, Rebecca J.; College of Marine and Environmental Sciences, James Cook University; Australian Research Council Centre of Excellence for Coral Reef Studies; Division of Evolution, Ecology and Genetics, Australian National University; School of Life Sciences, University of Technology Sydney; rebecca.fox-1@uts.edu.au; Bellwood, David R.; College of Marine and Environmental Sciences, James Cook University; Australian Research Council Centre of Excellence for Coral Reef Studies; david.bellwood@jcu.edu.au. |
| Around the world, the decreasing health of coral reef ecosystems has highlighted the need to better understand the processes of reef degradation. The development of more sensitive tools, which complement traditional methods of monitoring coral reefs, may reveal earlier signs of degradation and provide an opportunity for pre-emptive responses. We identify new, sensitive metrics of ecosystem processes and benthic composition that allow us to quantify subtle, yet destabilizing, changes in the ecosystem state of an inshore coral reef on the Great Barrier Reef. Following severe climatic disturbances over the period 2011-2012, the herbivorous reef fish community of the reef did not change in terms of biomass or functional groups present. However, fish-based... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Disturbances; Ecosystem state; Herbivory; Management; Monitoring; Processes; Resilience; Sediment; Thresholds. |
| Ano: 2016 |
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| Gómez Torres, Rafael. |
| En el Distrito de Riego 063, Guasave, Sinaloa, se utilizan prácticas tradicionales y poco eficientes en el seguimiento del Plan de Riegos. Además de lo anterior, la falta de personal capacitado y la crisis provocada por la falta de agua necesaria para el desarrollo de los cultivos, hicieron obligada la aplicación de las Técnicas de Percepción remota y Sistemas de Información Geográfica. Se realizó el seguimiento al desarrollo de las superficies regadas y sembradas contempladas en el Plan de Riegos del Ciclo Agrícola Otoño-Invierno 2011-2012. La supervisión y monitoreo consistió de informes presentados por el personal del Distrito de Riego, y también se obtuvieron datos de las imágenes y del Sistema de Información Geográfica. Con esta información se logró... |
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Palavras-chave: Percepción remota; Monitoreo; Supervisión; Remote sensing; Monitoring; Supervision; Hidrociencias; Maestría Tecnológica. |
| Ano: 2013 |
URL: http://hdl.handle.net/10521/2086 |
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| Batistella Pasini,Mauricio Paulo; Dal'Col Lúcio,Alessandro; Cargnelutti,Alberto Filho. |
| The objective of this work was to select semivariogram models to estimate the population density of fig fly (Zaprionus indianus; Diptera: Drosophilidae) throughout the year, using ordinary kriging. Nineteen monitoring sites were demarcated in an area of 8,200 m2, cropped with six fruit tree species: persimmon, citrus, fig, guava, apple, and peach. During a 24 month period, 106 weekly evaluations were done in these sites. The average number of adult fig flies captured weekly per trap, during each month, was subjected to the circular, spherical, pentaspherical, exponential, Gaussian, rational quadratic, hole effect, K-Bessel, J-Bessel, and stable semivariogram models, using ordinary kriging interpolation. The models with the best fit were selected by... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zaprionus indianus; Geostatistics; Integrated pest management; Monitoring; Regionalized variables; Spatial dependence. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2014000700493 |
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| Thebault, Anne; Arnich, Nathalie; Belin, Catherine; Neaud-masson, Nadine. |
| In France, the sampling strategy for the official monitoring of lipophilic phycotoxins in bivalve shellfish relies on the definition of risk areas and high risk periods, during which a systematic weekly analysis of toxins in shellfish is performed. Since 2010, high risk periods are defined as follows: the occurrence of one result above the European regulatory limit (160 μg equivalent okadaic acid/kg shellfish) over the last 3 years leads to that month being considered a high risk period. This definition was established according to a statistical analysis of the official monitoring results for the period 2003-2008, based on the mouse bioassay (MBA) as the official analytical method. As of the 1st January 2010, the MBA has been replaced by LC-MS/MS. In 2014,... |
| Tipo: Text |
Palavras-chave: Monitoring; Shellfish; Lipophilic phycotoxins; Bayesian inference. |
| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00393/50470/51205.pdf |
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| Stranlund, John K.. |
| Most of the theoretical literature on enforcing environmental policies focuses on situations in which pollution sources are noncompliant. However, some recent work suggests that these situations will very often involve suboptimal policy designs. Thus, the circumstances under which it is efficient to implement policies that do not motivate full compliance appear to be more limited than most of the literature would imply. In this paper, I identify several circumstances under which regulators may conserve enforcement costs by implementing emissions taxes that firms evade. I demonstrate that a regulator can use a firm’s tax evasion to reduce monitoring effort, but only if its monitoring strategy can be made an increasing function of the firm’s emissions, if... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Compliance; Enforcement; Emissions Taxes; Monitoring; Sanctions; Uncertainty; Environmental Economics and Policy; Public Economics; L51; Q58. |
| Ano: 2010 |
URL: http://purl.umn.edu/93967 |
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| Fauvelle, Vincent; Belles, Angel; Budzinski, Helene; Mazzella, Nicolas; Plus, Martin. |
| The work presented here aims at comparing monitoring of S-metolachlor, the major pesticide in use in the Arcachon Bay (South West of France, transitional coastal area), by chemical analysis (monthly passive sampling) and contaminant dissipation modeling from sources (Mars-2D model). The global strategy consisted in i) identifying the major sources of S-metolachlor to the Bay, ii) monitoring these sources for 12 months, and iii) comparing modeled data in the Bay based on measured inputs, to chemical measurements made inside the Bay along with the 12-month source monitoring. Results first showed that the major S-metolachlor surface inputs to the Arcachon Bay are mainly from one single source. Modeled and measured data were in good agreement at 5 sites in the... |
| Tipo: Text |
Palavras-chave: Passive sampling; POCIS; Mars-2D; Contaminant; Monitoring; Coastal area; Pesticides; S-metolachlor. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00445/55627/57334.pdf |
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| Gonçalves,Ana Carolina Siqueira; Roma Júnior,Luiz Carlos; Privatti,Rafaela Torrezan; Salles,Márcia Saladini Vieira; Paz,Claudia Cristina Paro de; Zadra,Lenira El Faro; Vidal,Ana Maria Centola. |
| ABSTRACT: The study aimed to evaluate the equipment Ekomilk Scan® as an alternative to somatic cell count (SCC) in milk. For this individual cow milk samples of various ages and different stages of lactation in northeastern state of São Paulo region were collected. The analyzes performed were divided into variables related to the equipment: repeatability and reproducibility, and variables that could influencing the results as: use of preservatives, temperature, time between collection and analysis, breed and milk composition, besides analysis to relate the Ekomilk Scan® with the standard method-direct microscopy and reference-flow cytometry. As the result, for samples analysis, it shouldn’t be added preservative and these should be conducted on the same... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Monitoring; Udder health; Alternative method; Somatic cell count. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000600454 |
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| Registros recuperados: 275 | |
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