Body condition and energy density of juvenile streaked prochilod Prochilodus lineatus (Valenciennes, 1837) in a Neotropical floodplain
ABSTRACT Variations in energetic density (E D ) and the relative condition factor (K n ) of juveniles of Prochilodus lineatus were investigated to identify whether these two variables respond similarly to environmental factors. We hypothesized that fluviometric levels in different sub-basins of th...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Sociedade Brasileira de Ictiologia
|
| Series: | Neotropical Ichthyology |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252016000400201&lng=en&tlng=en |
| _version_ | 1811211482800586752 |
|---|---|
| author | Daiany de Fátima Corbetta Ana Lúcia Veronezzi Evanilde Benedito |
| author_facet | Daiany de Fátima Corbetta Ana Lúcia Veronezzi Evanilde Benedito |
| author_sort | Daiany de Fátima Corbetta |
| collection | DOAJ |
| description | ABSTRACT Variations in energetic density (E D ) and the relative condition factor (K n ) of juveniles of Prochilodus lineatus were investigated to identify whether these two variables respond similarly to environmental factors. We hypothesized that fluviometric levels in different sub-basins of the Upper Paraná River floodplain positively influence the E D and K n of juvenile fish. Temporally, the values of E D and K n were linked more directly to the dynamics of the flood pulses on the plain. Spatially, the lowest values of E D and K n were observed in the environment that was directly affected by the operation of dams, the sub-basin Paraná. Although the energy density and condition factor did not show similar results for juveniles in some of the analyses, the evaluation of both parameters provided a complementary tool and additional information that enabled a more accurate investigation of the temporal and spatial dynamic processes in this Neotropical floodplain. We conclude that water level variations in different sub-basins of the Upper Paraná River floodplain considerably affect the relative condition factor and energy status of P. lineatus . We suggest that the impacts of this modification should be mitigated or avoided in order to maintain fish stocks and promote ecosystem integrity. |
| first_indexed | 2024-04-12T05:14:55Z |
| format | Article |
| id | doaj.art-91890c772b2d490d80485a4b57210adc |
| institution | Directory Open Access Journal |
| issn | 1982-0224 |
| language | English |
| last_indexed | 2024-04-12T05:14:55Z |
| publisher | Sociedade Brasileira de Ictiologia |
| record_format | Article |
| series | Neotropical Ichthyology |
| spelling | doaj.art-91890c772b2d490d80485a4b57210adc2022-12-22T03:46:40ZengSociedade Brasileira de IctiologiaNeotropical Ichthyology1982-022414410.1590/1982-0224-20150035S1679-62252016000400201Body condition and energy density of juvenile streaked prochilod Prochilodus lineatus (Valenciennes, 1837) in a Neotropical floodplainDaiany de Fátima CorbettaAna Lúcia VeronezziEvanilde BeneditoABSTRACT Variations in energetic density (E D ) and the relative condition factor (K n ) of juveniles of Prochilodus lineatus were investigated to identify whether these two variables respond similarly to environmental factors. We hypothesized that fluviometric levels in different sub-basins of the Upper Paraná River floodplain positively influence the E D and K n of juvenile fish. Temporally, the values of E D and K n were linked more directly to the dynamics of the flood pulses on the plain. Spatially, the lowest values of E D and K n were observed in the environment that was directly affected by the operation of dams, the sub-basin Paraná. Although the energy density and condition factor did not show similar results for juveniles in some of the analyses, the evaluation of both parameters provided a complementary tool and additional information that enabled a more accurate investigation of the temporal and spatial dynamic processes in this Neotropical floodplain. We conclude that water level variations in different sub-basins of the Upper Paraná River floodplain considerably affect the relative condition factor and energy status of P. lineatus . We suggest that the impacts of this modification should be mitigated or avoided in order to maintain fish stocks and promote ecosystem integrity.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252016000400201&lng=en&tlng=enCondition FactorFood webHabitatImpactParaná basin |
| spellingShingle | Daiany de Fátima Corbetta Ana Lúcia Veronezzi Evanilde Benedito Body condition and energy density of juvenile streaked prochilod Prochilodus lineatus (Valenciennes, 1837) in a Neotropical floodplain Neotropical Ichthyology Condition Factor Food web Habitat Impact Paraná basin |
| title | Body condition and energy density of juvenile streaked prochilod Prochilodus lineatus (Valenciennes, 1837) in a Neotropical floodplain |
| title_full | Body condition and energy density of juvenile streaked prochilod Prochilodus lineatus (Valenciennes, 1837) in a Neotropical floodplain |
| title_fullStr | Body condition and energy density of juvenile streaked prochilod Prochilodus lineatus (Valenciennes, 1837) in a Neotropical floodplain |
| title_full_unstemmed | Body condition and energy density of juvenile streaked prochilod Prochilodus lineatus (Valenciennes, 1837) in a Neotropical floodplain |
| title_short | Body condition and energy density of juvenile streaked prochilod Prochilodus lineatus (Valenciennes, 1837) in a Neotropical floodplain |
| title_sort | body condition and energy density of juvenile streaked prochilod prochilodus lineatus valenciennes 1837 in a neotropical floodplain |
| topic | Condition Factor Food web Habitat Impact Paraná basin |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252016000400201&lng=en&tlng=en |
| work_keys_str_mv | AT daianydefatimacorbetta bodyconditionandenergydensityofjuvenilestreakedprochilodprochiloduslineatusvalenciennes1837inaneotropicalfloodplain AT analuciaveronezzi bodyconditionandenergydensityofjuvenilestreakedprochilodprochiloduslineatusvalenciennes1837inaneotropicalfloodplain AT evanildebenedito bodyconditionandenergydensityofjuvenilestreakedprochilodprochiloduslineatusvalenciennes1837inaneotropicalfloodplain |