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| Registros recuperados: 3.574 | |
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| 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 |
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| Ano: 1982 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6908 |
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| Nijssen, H.; Tuijl, L. van; Isbrücker, I.J.H.. |
| This catalogue resulted from our attempts (since 1963) to accommodate and modernize the labelling of type-material of Recent fishes in the collections of the Zoölogisch Museum Amsterdam (ZMA), now named Institute of Taxonomie Zoology, University of Amsterdam. We traced 6625 type-specimens of 714 nominal species or subspecies, 228 of which are primary type-specimens (holotype, lectotype, or neotype); moreover, the collection contains one or more syntypes of 222 nominal (sub-) species. A few syntypes are presently indicated as future lectotype in the collection, awaiting publication by various specialists. Such specimens are not distinguished in this catalogue. It is possible that lectotype designations for some species have been validly published, which... |
| Tipo: Article / Letter to the editor |
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| Ano: 1982 |
URL: http://www.repository.naturalis.nl/record/506026 |
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| Phillips, Kathryn S.; Price, David W.. |
| Comparative analysis of food demand expansion of a cash program, as compared to the food stamp program, is important for measuring trade-offs between goals of raising farm income and increasing food expenditures of the poor. A theoretical basis for assessing food demand impacts under each program is presented. Two effects are analyzed: 1) The effect on food demand of the individual household and 2) The effect of food demand at the aggregate level. Both indifference curve analysis and psychological need level theory are used. |
| Tipo: Journal Article |
Palavras-chave: Demand and Price Analysis; Food Security and Poverty. |
| Ano: 1982 |
URL: http://purl.umn.edu/32419 |
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| Registros recuperados: 3.574 | |
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