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| Lemes,Elis Mara; Garutti,Valdener. |
| Ecological studies were conducted in the ichthyofauna of Cedro, a small headwater stream located in a degraded area of State of São Paulo, Brazil, situated in the upper Paraná River basin. These are the results of two non-consecutive years observations and collections in two biotopes of that stream: a pool and a rapid. The ecological characteristics studied change in space and time. The present richness of species is high (21 species), nine of which are constant, six accessory and six accidental. The diversity is low (0.69 to 2.38), and the numeric predominance, from one to three species, occurred in both biotopes. The most frequent species are Poecilia reticulata (Peters, 1859) (28.1%), Corydoras cf. aeneus (Gill, 1858) (20.3%) and Hypostomus cf.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ichthyofauna; Upper Paraná River; Biotopes; Ecological index. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212002000300007 |
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| Piazzi, L.; Gennaro, P.; Cecchi, E.; Bianchi, C.n.; Cinti, M.f.; Gatti, G.; Guala, I.; Morri, C.; Sartoretto, Stephane; Serena, F.; Montefalcone, M.. |
| This paper aims at collating and reviewing all data collected using the ESCA (Ecological Status of Coralligenous Assemblages) index from 2009 to 2018 during different local applications, in order to evaluate at large spatial scale its effectiveness and temporal variability. To this scope, the large-scale response of ESCA to anthropogenic disturbance was tested comparing ESCA values calculated at 42 sites of the Western Mediterranean Sea with the anthropization index. Moreover, the sensitivity of ESCA to punctual human disturbance and the robustness of the index across the natural space and time variability were evaluated. The large spatial scale study showed significant correlation between ESCA and the anthropization index, while very low correlation was... |
| Tipo: Text |
Palavras-chave: Coralligenous reefs; Ecological index; Impact evaluation; Mediterranean Sea; Monitoring. |
| Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00658/77011/78271.pdf |
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