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van der Ree, Rodney; Australian Research Centre for Urban Ecology, Royal Botanic Gardens Melbourne; rvdr@unimelb.edu.au; Cesarini, Silvana; Australian Centre for Biodiversity, School of Biological Sciences, Monash University ;; Sunnucks, Paul; Australian Centre for Biodiversity, School of Biological Sciences, Monash University ; paul.sunnucks@sci.monash.edu.au; Moore, Joslin L; Australian Research Centre for Urban Ecology, Royal Botanic Gardens Melbourne; joslinm@unimelb.edu.au; Taylor, Andrea; Australian Centre for Biodiversity, School of Biological Sciences, Monash University ; Andrea.Taylor@sci.monash.edu.au. |
Tipo: Peer-Reviewed Reports |
Palavras-chave: Barrier; Canopy gap; Freeway; Gliders; Mitigation; Road crossing; Radio-tracking; Vegetated median. |
Ano: 2010 |
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Makrakis,Sergio; Castro-Santos,Theodore; Makrakis,Maristela Cavicchioli; Wagner,Ricardo Luiz; Adames,Maurício Spagnolo. |
Improperly installed or poorly maintained culverts can pose a serious threat to fish by disrupting their habitat and endangering spawning success. Road culverts that are not designed for fish passage frequently can become obstacles. This can be especially problematic for migratory species, but can lead to fragmentation of resident populations as well. This study evaluated 40 culverts of 29 sites within a 25-km radius from Toledo city, Paraná State, southern Brazil, with respect to their likely effects on movement of the local ichthyofauna. We collected data on the shape and length of culverts, culvert material, waterfall height, water column depth, slope, and estimated flow velocity. Culverts were categorized by level of barrier risk for upstream... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Barriers; Criteria for culverts; Road crossing; Stream. |
Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000400009 |
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