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Modeling mosquitofish (Gambusia holbrooki) responses to Genapol OXD-080, a non-...
Cabral, J. A.; Marques, J. C.; Nielsen, S. N.An ecotechnological approach to control crayfish (Procambarus clarkii) infestation in rice fields of the Lower Mondego River Valley (Central Portugal) has recently been investigated. The application of the biodegradable non-ionic surfactant Genapol OXD-080, a fatty alcohol polyglycol ether, in rice paddies at a given concentration (50 mg/l) has been considered as a non-harmful chemical method to mitigate damage...
CRISP (crayfish and rice integrated system of production): 2. Modelling crayfis...
Anastácio, P. M.; Nielsen, S. N.; Marques, J. C.An ecological sub-model of crayfish (Procambarus clarkii) population dynamics is presented for integration into the CRISP (crayfish and rice integrated system of production) series of models. The present structure is directed towards simulation of crayfish population responses under different human interventions, namely different capture rates. The crayfish population was subdivided into seven age classes of 80...
Analysis of the properties of exergy and biodiversity along an estuarine gradie...
Marques, J. C.; Pardal, M. A.; Nielsen, S. N.; Jorgensen, S. E.Benthic eutrophication often gives origin to qualitative changes in marine and estuarine ecosystems, for example the shift in primary producers, often followed by changes in species composition and trophic structure at other levels. Through time such modifications may determine a selected new trophic structure. The development of structural dynamic models will allow to simulate such changes, using goal function...
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