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Sohet, K.; Schoemann, V.; Houvenaghel, G.. |
The growth of <i>Prorocentrum lima</i>, a toxic algae producing okadaic acid, has been followed in culture media with a variety of organic enrichments obtained from soils and composts of different origins. Two strains were studied and did not respond in the same way to the enrichments. Each strain also responds differently to each type of enrichment. Compost extracts, rich in organic matters, induce faster growth (growth rate 0.07/day) than extracts of soils poor in organic matter (growth rate 0.016/day). Such findings may contribute to explain the mechanisms inducing or triggering bloom developments which occur in neritic and coastal waters where terrigenous run-off mostly influences the organic content of seawater. |
Tipo: Info:eu-repo/semantics/article |
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Ano: 1991 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2895 |
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Houvenaghel, G.. |
M. F. Maury, head of the U.S. Naval Observatory. started to compile meteorological and sea surface data from the logbooks. This allowed him, during the 1840's to expand knowledges in descriptive oceanography. Willing to extend the geographical coverage of his data bank and chartings, Maury wanted to involve merchant navy as well as ships from other nations. This led him to consider favourably projects of universal networks for meteorological data collection such as proposed by the Russian Kupffer in the early 1850's. Maury tried to establish such co-operation when British and US officials came together to uniformize their network. Maury did not succeed to bring the project at an international level. Instead, he only was allowed to call upon an... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Conferences; Historical account; Marine sciences; Oceanography; Belgium. |
Ano: 1990 |
URL: http://www.vliz.be/imisdocs/publications/276694.pdf |
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