23 documents found, page 1 of 3
Proteina total, fracionamento eletroforético e fibrinogênio do sangue de caprin...
Machado, M. A.; Neto, J. M.Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2014-02-26T17:03:11Z No. of bitstreams: 1 WOSA1981MZ58100005.pdf: 6809819 bytes, checksum: 4b685f1cd8b24eee571b3196c0eef882 (MD5); Made available in DSpace on 2014-02-26T17:03:11Z (GMT). No. of bitstreams: 1 WOSA1981MZ58100005.pdf: 6809819 bytes, checksum: 4b685f1cd8b24eee571b3196c0eef882 (MD5) Previous issue date: 1981-01-01; Submitted by Vitor Si...
Spatial distribution of subtidal Nematoda communities along the salinity gradie...
Adão, Helena; Alves, A.; Patricio, J.; Neto, J. M.; Costa, M. J.; Marques, J.C.of two Portuguese estuaries exposed to different degrees of anthropogenic stress: the Mira and the Mondego. The nematode communities were mainly composed of Sabatieria, Metachromadora, Daptonema, Anoplostoma, Sphaerolaimus and Terschellingia species, closely resembling the communities of Northern European estuaries. In both estuaries, nematode density and community composition followed the salinity gradient, na...
Do nematode and macrofauna assemblages provide similar ecological assessment in...
Patrício, Joana; Adão, Helena; Neto, J. M.; Alves, Ana; Traunspurger, Walter; Marques, J.C.Do nematode and macrofauna assemblages provide similar ecological assessment information? To answer this question, in the summer of 2006, subtidal soft-bottom assemblages were sampled and environmental parameters were measured at seven stations covering the entire salinity gradient of the Mondego estuary. Principal components analysis (PCA) was performed on the environmental parameters, thus establishing differ...
Spatial distribution of subtidal meiobenthos along estuarine gradients in two S...
Alves, Ana; Adao, Helena; Patricio, J.; Neto, J. M.; Costa, Maria Jose; Marques, J.C.Abstract The spatial variation in abundance and composition of subtidal meiobenthos communities was studied in two Portuguese estuaries under distinct degrees of anthropogenic pressure. Samples were collected from 20 sampling stations along both estuarine gradients from freshwater (<0.5) to euhaline areas (>30). Of these stations 11 were located in the Mondego estuary, a system exposed to high anthropogenic str...
Role of estuarine nematode assemblages in ecological assessment in a southern E...
Alves, Ana; Adão, Helena; Patricio, J.; Neto, J. M.; Marques, J. C.To improve nematode’s knowledge in the Mondego estuary (Portugal), the temporal and spatial variations of subtidal free-living marine nematodes communities (density, diversity and trophic structure) along the entire estuarine gradient (freshwater to euhaline areas) were seasonally studied (2006 to 2009). Since 1980, the hydromorphological, physicochemical and ecological responses of the system to both natural a...
Seasonal and spatial variability of nematodes and macrofauna assemblages in the...
Alves, Ana; Adão, Helena; Patricio, J.; Neto, J. M.; Vinagre, P.; Verissimo, H.; Marques, J. C.With the implementation of the European Water Framework Directive there is the need to develop assessment tools based on biological data, which are adequate for all European aquatic systems. Macrofauna communities have traditionally been used to assess and evaluate ecological integrity. However, meiofauna communities can also suitably reflect the ecological conditions present in a particular system. Free-living...
Spatial distribution of subtidal meiofauna communities along a salinity gradien...
Alves, Ana; Adão, Helena; Patricio, J.; Neto, J. M.; Costa, Maria Jose; Marques, J.C.Global climate changes contribute to the occurrence of stronger and more frequent extreme events, which have unmistakable impact on temporal and spatial distribution patterns of benthic communities. The interest of studding benthic fauna response to extreme events is to obtain useful information on detecting which organisms better reflect ecological status of systems, and, on the other hand, to understand early...
Nematodes vs Macrofauna assemblages along an estuarine gradient (Mondego estuar...
Adao, Helena; Patricio, J.; Alves, Ana; Neto, J. M.; Teixeira, H.; Marques, J.C.The spatial distribution of the nematodes and macrofauna communities in the subtidal sediments along estuarine gradient in the Mondego estuary was studied. The main aim is to compare the response of the nematodes and macrofauna communities structure adjusted for each estuarine stretch. Spatial distribution of nematode assemblages followed the estuarine gradients, allowing to distinguish: The freshwater and olig...
Ecological quality assessment of transitional waters based on fish assemblages ...
Cabral, H. N.; Fonseca, V. F.; Gamito, R.; Gonçalves, C. I.; Costa, J. L.; Erzini, Karim; Gonçalves, Jorge Manuel Santos; Martins, J.; Leite, L.The assessment of water quality has changed markedly worldwide over the last years, especially in Europe due to the implementation of the Water Framework Directive. Fish was considered a key-element in this context and several fish-based multi-metric indices have been proposed. In this study, we propose a multi-metric index, the Estuarine Fish Assessment Index (EFAI), developed for Portuguese estuaries, designe...
Ecological quality assessment of transitional waters based on fish assemblages ...
Cabral, H. N.; Fonseca, V. F.; Gamito, R.; Gonçalves, C. I.; Costa, J. L.; Erzini, Karim; Gonçalves, J. M. S.; Martins, J.; Leite, L.The assessment of water quality has changed markedly worldwide over the last years, especially in Europe due to the implementation of the Water Framework Directive. Fish was considered a key-element in this context and several fish-based multi-metric indices have been proposed. In this study, we propose a multimetric index, the Estuarine Fish Assessment Index (EFAI), developed for Portuguese estuaries, designed...