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| Registros recuperados: 104 | |
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| Gruet, Y; Laporte, L. |
| The species which have been identified in this Neolithic site are still living along the Bay of Biscay coasts. One of them, Haliotis , has recently disappeared from the Oleron Island. Some of them, as the very fruitful Patella and Monodonta lineata , have certainly been gathered and devoted to food. Others, as Nucella lapillus , have only been used to make pearls. And some others, Cardium for instance, could have been devoted at the same time to food and pearls. The study of the current biota of the different species allows the biologist to indicate where the shells might have lived: rocky or sandy shores, sheltered or exposed shores, intertidal or subtidal environment. The knowledge of the possible biota is an indication of the areas of the prehistoric... |
| Tipo: Text |
Palavras-chave: ANE; France; Poitou Charentes; Marennes Oleron Bay Marine molluscs Biotopes Palaeontology Check lists Ecology. |
| Ano: 1991 |
URL: http://archimer.ifremer.fr/doc/1991/acte-1726.pdf |
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| Polk, P.. |
| The sluice-dock at Ostend is an artificial lagoon (1.5 m deep and with an area of 86 ha) connected to the harbour of Ostend and the North Sea by sluices (vannes). At low tides, during spring tide, the whole dock can be emptied, washing out the planktonic biomass. As an oyster culture exists in this biotope, applied and fundamental research is done. Planktonic larvae of oyster predators can be eliminated from the biotope by washing out the whole water volume during their bloom and replacing it by new sea-water. The oyster pest <i>Crepidula fornicata</i> (introduced with oyster spatfall from the Netherlands and reproducing heavily in the sluice-dock, otherwise not occurring along the Belgian coast) is controlled in this way (before: 15,746... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: ANE; Belgium; Oostende Harbour; Sluice Dock. |
| Ano: 1978 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3587 |
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| Baeyens, W.F.J.; Van Eck, B.T.M.; Lambert, C.; Wollast, R.; Goeyens, L.. |
| A general description of the Scheldt estuary, including the hydrology, the sediment transport, the productivity and the biodegradation with respect to their influence on the trace metal behaviour in the Scheldt estuary, is given. The river basin can be divided in several sections according to their morphological, hydrodynamical and sedimentary properties. The zone from km 78 to 55, which corresponds roughly with the salinity zone from 2 to 10 psu, is the zone of high turbidity, high sedimentation and of oxygen depletion, especially in the summer period. That area is called the geochemical filter because the solid/dissolved distribution of the trace metals is controlled by redox, adsorption/desorption, complexation and precipitation/coprecipitation... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: ANE; Netherlands; Westerschelde. |
| Ano: 1998 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7040 |
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| Podamo, J.. |
| The food chain of plankton at the Sluice-Dock is reduced to the simple system "producers-primary consumers". The role of zooplankton is most important only for a short time, namely in May, when it restricts the development of phytoplankton by its grazing activity, and becomes the main source of nutrients due to its excretory activity. After the disappearance of most of the zooplankton biomasses, caused by a mortality that is not due to predation, the phytoplankton can again develop. At other times of the year, the zooplankton activities such as production, grazing, excretion, and respiration only represent 1% of the total plankton activity. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: ANE; Belgium; Oostende Harbour; Sluice Dock. |
| Ano: 1976 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3537 |
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| Bastin, A.; Malherbe, B.; Caillot, A.. |
| An extensive program of tracer experiments was carried out for calculating sediment transport in the vicinity of the Port of Zeebrugge where extension operations are in progress. Offshore radioactive bottom tracers were used for studying the sand transport along the beaches where erosion problems exist. On the beach itself fluorescent tracers were used. For the evaluation of the silting-up rate of the access channels to the harbour a series of radioactive bottom and suspension tracers were tracked <i>in situ</i>. For determining the efficiency of future dumping grounds a combination of bottom tracers and suspension tracers was used. In total, 18 experiments with radioactive tracers were carried out and 9 with fluorescent ones. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: ANE; Belgium; Belgian Coast. |
| Ano: 1983 |
URL: http://www.vliz.be/imisdocs/publications/128948.pdf |
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| Middelburg, J.J.; Barranguet, C.; Boschker, H.T.S.; Herman, P.M.J.; Moens, T.; Heip, C.H.R.. |
| At two intertidal sites (one sandy and one silty, in the Scheldt estuary, The Netherlands), the fate of microphytobenthos was studied through an in situ <sup>13</sup>C pulse- chase experiment. Label was added at the beginning of low tide, and uptake of <sup>13</sup>C by algae was linear during the whole period of tidal exposure (about 27 mg m<sup>-2</sup> h<sup>-1</sup> in the top millimeter at both sites). The <sup>13</sup>C fixed by microphytobenthos was rapidly displaced toward deeper sediment layers (down to 6 cm), in particular at the dynamic, sandy site. The residence times of microphytobenthos with respect to external losses (resuspension and respiration) were about 2.4 and 5.6 d at the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: ANE; Netherlands; Westerschelde; Molenplaat. |
| Ano: 2000 |
URL: http://www.vliz.be/imisdocs/publications/54615.pdf |
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| Coppejans, E.. |
| The author mentions 10 rarely observed Rhodophyceae from the French coasts of the Channel: <i>Chondria dasyphylla</i>, <i>Griffithsia devoniensis</i>, <i>Plumaria elegans</i> (Ceramiales), <i>Grateloupia filicina</i> (Cryptonemiales), <i>Phyllophora traillii</i> (Gigartinales), <i>Scinaia forcellata</i> (Nemalionales), <i>Cordylecladia erecta</i>, <i>Lomentaria orcadensis</i>, <i>Rhodymenia pseudopalmata</i> var. <i>pseudopalmata</i> and var. <i>ellisiae</i> (Rhodymeniales). A brief morphological description is given and some anatomical details or data on the reproductive structures are added. The auto-ecology of the seaweeds... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: ANE; France; Nord; Pas-de-Calais. |
| Ano: 1980 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3614 |
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| Maertens, D.. |
| This paper describes ecological characteristics of the western sand extraction area off the Belgian coast. A review of scientific research is given with special reference to a long term ecological monitoring programme.Relevant clauses concerning the exploration and exploitation of the Belgian continental shelf were elaborated in the law of 13 June 1969. In application to this law two Royal Decrees were published to regulate exploitation.The ecological monitoring programme investigated benthic communities and demersal fish population since 1977. Close attention was paid to the evolution of dominant species belonging to the epibenthic fauna e.g. the brittle stars (<i>Ophiura texturata</i> and <i>Ophiura albida</i>), the common... |
| Tipo: Info:eu-repo/semantics/book |
Palavras-chave: ANE; Belgium; Belgian Continental Shelf (BCS). |
| Ano: 1998 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2992 |
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| Lock, K.; Beyst, B.; Mees, J.. |
| The intertidal fauna of a Belgian sandy beach was sampled on an hourly basis with a hand-pushed sledge to study circadiel patterns in species composition. Four assemblages could be distinguished with classification and ordination techniques. A first division separated the samples taken during daytime from the night samples. Both assemblages were subsequently divided into an ebbtide and a floodtide situation. Light intensity and tidal height were the most important variables explaining the variation in the Canonical Correspondence Analysis. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: ANE; Belgium; Brugge; Zeebrugge. |
| Ano: 1999 |
URL: http://www.vliz.be/imisdocs/publications/233876.pdf |
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| Pichot, G.; Runfola, Y.. |
| The nitrogen cycle between dissolved inorganic and organic matter, phytoplankton, zooplankton, non living particulate organic matter, and sediments is studied in the ecosystem formed by the Southern Bight of the North Sea. A consistent pattern of mean annual fluxes of nitrogen based on the primary production and the zooplankton grazing is set up. A mathematical model describing the dynamic behaviour of nutrients, phytoplankton, zooplankton and dissolved organic matter is proposed. The results of the simulation fairly well fit the recent observations made in the frame of the Math. Model Sea Research Programme. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: ANE; North Sea; Southern Bight. |
| Ano: 1976 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3535 |
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| Podamo, J.. |
| Nitrogen nutrients being, at least at some periods of the year, a limiting factor of primary production in the Sluice-Dock at Ostend, the production or consumption of ammonium and nitrate by the benthic bacterial communities plays an important role in the dynamics of the ecosystem. A methodology is developed to evaluate the fluxes of carbon and nitrogen associated with the microbiological activity and the physical mass transfer in the sediments. It is based on the analysis of vertical concentration profiles of pertinent substances in the sediment, completed with some direct <i>in situ</i> measurements of microbiological activity. This methodology is applied to denitrification, total heterotrophic activity, and nutrification in the two types... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: ANE; Belgium; Oostende Harbour; Sluice Dock. |
| Ano: 1976 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3539 |
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| Podamo, J.. |
| In order to assess the importance of the recycling of organic matter into nutrients in the water column, the bacterial biomass was evaluated by the spread-plate counts method, and the heterotrophic activity by two methods: initial consumption rate of oxygen and anaplerotic bicarbonate fixation. The biomass of aerobic heterotrophic bacteria does not reflect the heterotrophic activity and cannot be used as an index for this activity. This activity is always important as a recycling process for the phytoplanktonic organic matter it is depending on. Different periods can be recognized, with varying importance (relative to other recycling factors) of bacterial activity. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: ANE; Belgium; Oostende Harbour; Sluice Dock. |
| Ano: 1976 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3538 |
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| Registros recuperados: 104 | |
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