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| Registros recuperados: 275 | |
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| Herman, P.M.J.; Heip, C.H.R.. |
| The predictability of temporal changes was analysed in the population density of three meiobenthic copepod species, and for three parameters characterizing this community. For <i>Paranychocamptus nanus</i> and <i>Tachidius discipes</i> a large part of the variation in time scales longer than 1 year is explainable as cyclic factors. In <i>P. nanus</i> clear cycles with periods of 2 years and 1.5 years were found. These cyclic factors can be extrapolated for prediction. In <i>Canuella perplexa</i> almost all the variation was due to unpredictable long-term drift. Community parameters are generally better predicted than population densities. In our data set total density of the copepods was the best parameter to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Meiobenthos; Monitoring; Prediction; Time series; Copepoda [copepods]. |
| Ano: 1986 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3238 |
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| Heral, Maurice; Berthome, Jean-paul. |
| The impact of the main parameters of water quality which act on the life history of molluscs are presented. Two types of parameters are examined: the first are the physical-chemical parameters as temperature, salinity, turbidity, oxygen concentrations. They can be modified by perturbations directly related to human activities such as management of physical operations, e.g. constructions of dams, dredging for channels or for extraction of materials. Particular attention is given to inputs of nutrients with as consequences eutrophication and depletion of oxygen causing anoxie conditions. Attention will he focussed on some phytoplankton species like Gyrodinium aurelum which can cause mortalities in mollusc shellfish. The action of the main pollutants... |
| Tipo: Text |
Palavras-chave: Networks; Monitoring; Water quality; Molluscs culture. |
| Ano: 1991 |
URL: http://archimer.ifremer.fr/doc/1991/publication-3056.pdf |
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| Dreves, Luc; Arzul, Genevieve; Erard-le Denn, Evelyne; Quintin, Jean-yves; Martin, Jocelyne; Miossec, Dominique. |
| Surveillance n°8 of FLAMANVILLE power plant takes in account studies between march 1990 and september 1990. Hydrology, microbiology, phytoplankton, zooplankton, intertidal zoobenthos and fishing are studied. The year 1990 is the fifth year of working for this power plant. [NOT CONTROLLED OCR] |
| Tipo: Text |
Palavras-chave: Pelagos; Fisheries; Benthos; Monitoring; Flamanville; Nuclear power plant; Pelagos; Halieutique; Benthos; Surveillance; Flamanville; Centrale nucléaire. |
| Ano: 1991 |
URL: http://archimer.ifremer.fr/doc/1991/rapport-6799.pdf |
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| Berthome, Jean-paul. |
| Le projet de développement d'un réseau instrumenté de surveillance de l'environnement littoral correspond à une nécessité d'observations, sur de longues séries temporelles, et de mesures à des fréquences élevées. Il est le résultat d'une analyse des besoins des différents types d'utilisations. Il est l'occasion de coopération entre des scientifiques et des industriels pour développer un réseau de stations instrumentées multiparamètres transmettant les données par satellite vers une station de traitement des données et de diffusion de celles-ci par réseau informatisé. |
| Tipo: Text |
Palavras-chave: Surveillance; Capteur; Bouée; Monitoring; Sensor; Buoy. |
| Ano: 1991 |
URL: http://archimer.ifremer.fr/doc/00107/21823/19411.pdf |
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| Arzul, Geneviève; Erard-le Denn, Evelyne; Halgand, Daniel; Quiniou, Francoise; Tetard, Alain; Toularastel, France; Vincke, Marie-claude. |
| Surveillance n°1, 2nd phase, of PENLY nuclear power-plant takes In account studies between April and September 1990. Hydrology, microbiology, phytoplankton, zooplankton, fishing are studied. |
| Tipo: Text |
Palavras-chave: Pelagos; Halieutique; Centrale nucléaire; Surveillance; Pelagos; FIshing; Nuclear power plant; Monitoring. |
| Ano: 1992 |
URL: http://archimer.ifremer.fr/doc/00432/54392/55722.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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| Dreves, Luc; Erard-le Denn, Evelyne; Lunven, Michel; Martin, Jocelyne; Miossec, Dominique; Piriou, Jean-yves; Quintin, Jean-yves. |
| Surveillance n° 11 of FLAMANVILLE power plant takes in account studies between march 1993 and september 1993. Hydrology, microbiology, phytoplankton, zooplankton, intertidal phytobenthos et zoobenthos, and fishing are studied. The year 1993 is the eighth year of working for this power plant. (NOT CONTROLLED OCR] |
| Tipo: Text |
Palavras-chave: Monitoring; Power plant; Pelagos; Fishing; Benthos; Surveillance; Pelagos; Halieutique; Centrale nucléaire; Benthos. |
| Ano: 1994 |
URL: http://archimer.ifremer.fr/doc/1994/rapport-6825.pdf |
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| Dreves, Luc; Quintin, Jean-yves; Erard-le Denn, Evelyne; Lunven, Michel; Martin, Jocelyne; Miossec, Dominique. |
| Monitoring n°12 of the FLAMANVILLE nuclear power plant takes into account studies conducted between March and September 1994. Hydrology microbiology, phytoplankton, zooplankton, intertidal phytobenthos and zoobenthos, and fishing are reported. 1994 is the ninth year of operation for this power plant. [NOT CONTROLLED OCR] |
| Tipo: Text |
Palavras-chave: Surveillance; Pelagos; Halieutique; Centrale nucléaire; Benthos; Monitoring; Power plant; Pelagos; Fishing; Benthos. |
| Ano: 1995 |
URL: http://archimer.ifremer.fr/doc/1995/rapport-6826.pdf |
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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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| Ott, Stephen L.. |
| Due to a lack of national information about cull dairy cows, the USDA's National Animal Health Monitoring System (NAHMS) Dairy '96 Study investigated culling management practices. Operations included in the study represented 83.1 percent of U.S. milk cows. Most dairy cows were culled for reasons associated with their inability to profitably produce high-quality milk and calves; reasons for culling were not usually related to ill health or systemic disease. Results showed that almost all cull dairy cows in the US are intended for beef slaughter, as only about 4.4 percent were sent to other dairy operations. Nearly 77 percent of cows intended for beef slaughter were sent to markets, auctions, and sale barns, while 22 percent were sent straight to slaughter... |
| Tipo: Report |
Palavras-chave: NAHMS; Dairy; Cattle; Monitoring; Epidemiology; Production; Economics; Culling; Transportation; Milk; Marketing; Disease; Slaughter condemnation; Livestock Production/Industries. |
| Ano: 1996 |
URL: http://purl.umn.edu/45494 |
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| Registros recuperados: 275 | |
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