Consulta: creatorFacets:"Bertels, A."
Registros recuperados: 2
Data/hora: 04/06/2024 00:59:08

Incubation under fluctuating light conditions provides values much closer to real &lt;i&gt;in situ&lt;/i&gt; primary production
Provedor de dados: 27
Autores: Joiris, C.R.; Bertels, A.
Comparison of measured primary production, by radioactive carbonate incorporation or oxygen production, with diel variations of oxygen, inorganic carbon and particulate carbon, shows that the net in situ production often exceeds the measured activity, especially in deeper marine ecosystems. In vitro incubations under fluctuating light conditions provide higher values of primary production at low light intensities, both with cultures and with natural populations. The same results are obtained with in situ incubations, by varying the depth of incubation. This method allows reevaluation of primary productivity at low light intensities and provides results in agreement with the in situ variations of oxygen, inorganic carbon and particulate carbon. It can...
Tipo: Info:eu-repo/semantics/article
Ano: 1985
URL: http://www.vliz.be/imisdocs/publications/303172.pdf

A budget of carbon cycling in the Belgian coastal zone: relative roles of zooplankton, bacterioplankton and benthos in the utilization of primary production
Provedor de dados: 27
Autores: Joiris, C.R.; Billen, G.; Lancelot, MH.; Daro, M.H.; Mommaerts, J.-P.; Bertels, A.; Bossicart, M.; Nijs, J.; Hecq, J.H.
The various biological compartments of the Belgian coastal zone of the North Sea were studied since 1971. The synthesis of available data on carbon cycling includes phytoplankton biomass and activities (particulate and dissolved primary production, respiration) , zooplankton biomass and activities (grazing, respiration) and planktonic and benthic microbial heterotrophic activities. These various carbon flux estimates allow the development of an overall budget of carbon cycling. This budget shows the importance of microbial (planktonic and benthic) heterotrophs versus zooplankton in the utilization of primary production. Comparison with literature data suggests that this could be a general feature of coastal, as opposed to open sea ecosystems.
Tipo: Info:eu-repo/semantics/article
Ano: 1982
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6908