Spatial and temporal distribution of ''curvina'' larvae (Plagioscion squamosissimus HECKEL, 1840) and its relationship to some environmental variables in the upper Paraná River floodplain, Brazil

With the objective of studying the spatial and temporal distribution of ''curvina'' Plagioscion squamosissimus larvae and verifying respective spawning sites, monthly sampling was carried out from March 1993 to February 1994 on the Upper Paraná River floodplain. Using a conical-c...

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Main Authors: Baumgartner M. S. T., Nakatini K., Baumgartner G., Makrakis M. C.
Format: Article
Language:English
Published: Instituto Internacional de Ecologia 2003-01-01
Series:Brazilian Journal of Biology
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842003000300004
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author Baumgartner M. S. T.
Nakatini K.
Baumgartner G.
Makrakis M. C.
author_facet Baumgartner M. S. T.
Nakatini K.
Baumgartner G.
Makrakis M. C.
author_sort Baumgartner M. S. T.
collection DOAJ
description With the objective of studying the spatial and temporal distribution of ''curvina'' Plagioscion squamosissimus larvae and verifying respective spawning sites, monthly sampling was carried out from March 1993 to February 1994 on the Upper Paraná River floodplain. Using a conical-cylindrical plankton net (0.5 mm mesh), samples were taken from the surface of the water bodies, and in the marginal vegetation a strainer and a dragnet (''picaré'') were used. Water samples were collected for environmental variable analysis (temperature, dissolved oxygen, water pH, and electrical conductivity). Water level data were obtained from hydrometric stations. High average density of larvae was found from December 1993 to February 1994 due to high temperature and water level. The Baía sub-area was shown to be the most important in the larvae catch, probably due to its semi-lotic characteristics. Larvae size distribution was shown to be more frequent in the 4.0 mm standard length class, indicating that the sampling stations were next to the spawning sites.
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spelling doaj.art-766be421cab3499caa5cf1a6d2a03cb32022-12-22T00:10:00ZengInstituto Internacional de EcologiaBrazilian Journal of Biology1519-69841678-43752003-01-01633381391Spatial and temporal distribution of ''curvina'' larvae (Plagioscion squamosissimus HECKEL, 1840) and its relationship to some environmental variables in the upper Paraná River floodplain, BrazilBaumgartner M. S. T.Nakatini K.Baumgartner G.Makrakis M. C.With the objective of studying the spatial and temporal distribution of ''curvina'' Plagioscion squamosissimus larvae and verifying respective spawning sites, monthly sampling was carried out from March 1993 to February 1994 on the Upper Paraná River floodplain. Using a conical-cylindrical plankton net (0.5 mm mesh), samples were taken from the surface of the water bodies, and in the marginal vegetation a strainer and a dragnet (''picaré'') were used. Water samples were collected for environmental variable analysis (temperature, dissolved oxygen, water pH, and electrical conductivity). Water level data were obtained from hydrometric stations. High average density of larvae was found from December 1993 to February 1994 due to high temperature and water level. The Baía sub-area was shown to be the most important in the larvae catch, probably due to its semi-lotic characteristics. Larvae size distribution was shown to be more frequent in the 4.0 mm standard length class, indicating that the sampling stations were next to the spawning sites.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842003000300004''Curvina'' larvaePlagioscion squamosissimusdistributionfloodplainUpper Paraná River
spellingShingle Baumgartner M. S. T.
Nakatini K.
Baumgartner G.
Makrakis M. C.
Spatial and temporal distribution of ''curvina'' larvae (Plagioscion squamosissimus HECKEL, 1840) and its relationship to some environmental variables in the upper Paraná River floodplain, Brazil
Brazilian Journal of Biology
''Curvina'' larvae
Plagioscion squamosissimus
distribution
floodplain
Upper Paraná River
title Spatial and temporal distribution of ''curvina'' larvae (Plagioscion squamosissimus HECKEL, 1840) and its relationship to some environmental variables in the upper Paraná River floodplain, Brazil
title_full Spatial and temporal distribution of ''curvina'' larvae (Plagioscion squamosissimus HECKEL, 1840) and its relationship to some environmental variables in the upper Paraná River floodplain, Brazil
title_fullStr Spatial and temporal distribution of ''curvina'' larvae (Plagioscion squamosissimus HECKEL, 1840) and its relationship to some environmental variables in the upper Paraná River floodplain, Brazil
title_full_unstemmed Spatial and temporal distribution of ''curvina'' larvae (Plagioscion squamosissimus HECKEL, 1840) and its relationship to some environmental variables in the upper Paraná River floodplain, Brazil
title_short Spatial and temporal distribution of ''curvina'' larvae (Plagioscion squamosissimus HECKEL, 1840) and its relationship to some environmental variables in the upper Paraná River floodplain, Brazil
title_sort spatial and temporal distribution of curvina larvae plagioscion squamosissimus heckel 1840 and its relationship to some environmental variables in the upper parana river floodplain brazil
topic ''Curvina'' larvae
Plagioscion squamosissimus
distribution
floodplain
Upper Paraná River
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842003000300004
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