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| Brind'Amour, Anik; Lobry, Jeremy. |
| When reviewing the various fish-based community indicators aiming at assessing the ecological status of marine communities and/or ecosystems, a typology consisting of three major components emerges. The first component highlights the choice of relevant metrics associated with a level of organization (e. g. population or community). The second relies on the method used to combine the metrics (an aggregated indicator or a synoptic table). The third refers to the type of analysis (direct or indirect) that is used to establish the link between the metrics and a given pressure. In this paper we use the Vilaine coastal-estuarine fish communities as a case study to discuss and relate two different approaches to the suggested typology. The first approach... |
| Tipo: Text |
Palavras-chave: Coastal ecosystems; Fish communities; Indicators; Integrated approaches; Metric; Typology of fish indicators. |
| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/00000/11174/7532.pdf |
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| Cetra,Mauricio; Mattox,George Mendes Taliaferro; Ferreira,Fabio Cop; Guinato,Rayssa Bernardi; Silva,Fernando Vieira; Pedrosa,Marina. |
| Abstract The Paraná River basin has about 600 fish species. In the Upper Paraná, 310 fish species were recorded, with 52 species were registered in the streams and headwaters of the Paranapanema River. The aim of this study was to characterize the stream fish communities in the Upper Paranapanema River basin. Samplings were conducted with electrofishing during the dry season in the year of 2014. The collection effort consisted of 30 streams stretches. As a result, 41 species of stream fish were recorded in the Upper Paranapanema River basin, distributed in 26 genera, 11 families and 7 orders. Thirty-nine percent of the species can be considered rare, 41% intermediate and 20% common. We captured approximately eight species by stream stretch and the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fish communities; Estimated richness; Rare species. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032016000300304 |
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| Vicentin,Wagner; Ferreira,Fabiane Silva; Súarez,Yzel Rondon. |
| Abstract: In order to inventory the species richness and fish fauna composition along the Ivinhema river basin, 232 stretches of rivers and streams were sampled from 2000 to 2018, using a rectangular sieve, trawls, gillnets, cast nets, and electrofishing. A total of 141 species was caught in the basin, including seven orders and 35 families. For the recorded species, 42 are from the upper Paraná river, 51 from lower Paraná river, 27 from other basins, two from other continents, and the origin for 19 species are unknown/not reported. Six species are registred for the first time in the upper Paraná river basin: Astyanax abramis, Moenkhausia oligolepis, Serrapinnus kriegi, Curimatopsis myersi, Pyxiloricaria menezesi, and Cichlasoma dimerus. This is the first... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fish communities; Freshwater; Survey. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032019000400302 |
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