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| Registros recuperados: 45 | |
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| Persoone, G.. |
| The oyster culture, flourishing along the Belgian coast at the beginning of the century, perished entirely in the course of two World Wars. In 1956, it was taken on again intensively in the Scour Basin of Ostend. If we consider the obtained results with the affination of Flat and Portuguese oyster, this 86 ha closed basin, is of an exceptional productivity. Essays on the understanding of the origin of calcified oysters, done from 1960 until 1966, turned out to be very promising and an integral oyster culture from the larvae up to the adult oyster could be observed. In any case the last few years, eventhough compared to before a normal emission of larvae of <i>Ostrea edulis</i>, there has not been a fixation of the origin. Regular samples of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brackishwater pollution Harbours Oyster culture Reproduction Ostrea edulis Linnaeus; 1758 ANE; Belgium; Oostende Harbour; Sluice Dock. |
| Ano: 1971 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3467 |
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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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| Polk, P.. |
| 1. For the first time, <i>Crepidula fornicata</i> was observed in Belgium on 28-9-1911; in 1959, it became an oyster pest. 2. It was first introduced into Belgium with seed oysters from Great Britain. Later on, with seed oysters from the Netherlands. 3. Probably, the geographical spreading is caused by the adult animals attached to oysters. Larval propagation is responsible for local extension. 4. In the sluice-dock at Ostend, larvae occur from the middle of May till the end of November; they swim freely for a period of about 12 days. The first massive emission of larvae is observed during May and June, a second one in September. 5. The larvae settle preferentially at a depth of 65 cm. 6. Maximum settling takes place in May. It then decreases... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Introduced species Crepidula fornicata (Linnaeus; 1758) ANE; Belgium; Oostende Harbour; Sluice Dock. |
| Ano: 1962 |
URL: http://www.vliz.be/imisdocs/publications/256254.pdf |
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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: 45 | |
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