Effects of reservoirs water level variations on fish recruitment
Author
Lima, Fabíula T. de
Programa de Pós-Graduação em Aquicultura (PPG-AQI), Universidade Federal de Santa Catarina, Rodovia Admar Gonzaga, no 1346, 88034 - 000 Florianópolis, SC, Brazil.
biapaixonada@gmail.com
Author
Reynalte-Tataje, David A.
Centro de Ciências Biológicas, Universidade Federal da Fronteira Sul, Campus Cerro Largo, Rua Major Antônio Cardoso, no 590, Bloco A, 97900 - 000 Cerro Largo, RS, Brazil
reynalted@hotmail.com
Author
Zaniboni-Filho, Evoy
Laboratório de Biologia e Cultivo de Peixes de Água Doce (LAPAD), Universidade Federal de Santa Catarina, Rodovia SC 406, nº 3532, 88066 - 000 Florianópolis, SC, Brazil
evoy@lapad.ufsc.br
text
Neotropical Ichthyology
2017
2017-10-05
15
3
e 160084
e 160084
http://dx.doi.org/10.1590/1982-0224-20160084
journal article
10.1590/1982-0224-20160084
1982-0224
20125475
Tab. 6. Correlations between the hydrological parameters and the abundance of juveniles in the Itá reservoir, considering the entire sampling period (RP1 to RP12) and the period that excludes the first years after the formation of the reservoir (RP4 to RP12). 1 VWL = Variation (standard deviation) of the reservoir water level during the reproductive period. 2 AWL = Average value of the reservoir water level during the reproductive period. 3 VSV = Variation (standard deviation) of the reservoir storage volume during the reproductive period. 4 ASV = Average value of the reservoir storage volume during the reproductive period. | RP1-RP12 | RP4-RP12 | RP1-RP12 | RP4-RP12 |
|---|
| VWL1 | AWL2 | VWL | AWL | VSV3 | ASV4 | VSV | ASV |
|---|
| Nest | -0.27 | 0.03 | -0.66 | 0.48 | -0.27 | 0.21 | -0.66 | 0.63 |
|---|
| Semi-dense eggs | -0.06 | 0.04 | -0.15 | -0.22 | -0.06 | 0.07 | -0.16 | -0.28 |
|---|
| Demersal eggs | 0.13 | -0.22 | -0.07 | -0.02 | 0.13 | -0.21 | -0.07 | -0.10 |
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| Geophagus brasiliensis | -0.38 | 0.03 | -0.72 | 0.52 | -0.39 | 0.16 | -0.72 | 0.62 |
|---|
| Hoplias lacerdae | 0.01 | 0.28 | 0.29 | -0.03 | 0.03 | 0.37 | 0.31 | 0.15 |
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| Hoplias malabaricus | -0.42 | 0.45 | -0.64 | 0.70 | -0.42 | 0.57 | -0.64 | 0.81 |
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| Hypostomus commersoni | 0.24 | 0.06 | 0.66 | -0.25 | 0.26 | 0.10 | 0.65 | -0.28 |
|---|
| Serrasalmus maculatus | 0.18 | - 0.45 | -0.13 | -0.07 | 0.17 | -0.31 | -0.14 | 0.08 |
|---|
| Acestrorhynchus pantaneiro | -0.39 | 0.24 | -0.56 | 0.61 | -0.41 | 0.19 | -0.57 | 0.47 |
|---|
| Apareiodon affinis | -0.04 | -0.10 | -0.07 | -0.22 | -0.05 | -0.14 | -0.03 | -0.25 |
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| Astyanax aff. fasciatus | 0.07 | -0.23 | -0.10 | -0.04 | 0.07 | -0.23 | -0.10 | -0.11 |
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| Astyanax aff. scabripinnis | 0.61 | -0.64 | 0.50 | -0.45 | 0.62 | -0.54 | 0.51 | -0.34 |
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| Astyanax lacustris | 0.14 | -0.32 | 0.69 | -0.15 | 0.14 | -0.39 | 0.04 | -0.25 |
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| Piabarchus stramineus | 0.01 | -0.12 | -0.22 | -0.05 | 0.01 | -0.04 | -0.23 | -0.05 |
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| Iheringichthys labrosus | -0.18 | 0.23 | -0.18 | 0.23 | -0.17 | 0.19 | -0.17 | 0.15 |
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| Parapimelodus valenciennis | -0.13 | 0.47 | -0.01 | 0.41 | -0.10 | 0.48 | 0.01 | 0.40 |
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| Pimelodus maculatus | 0.38 | -0.26 | 0.44 | 0.11 | 0.39 | -0.18 | 0.44 | -0.03 |
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| Prochilodus lineatus | 0.15 | -0.15 | 0.15 | -0.09 | 0.15 | -0.13 | 0.16 | -0.03 |
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| Rhamdia quelen | 0.08 | 0.15 | 0.19 | -0.12 | 0.10 | 0.22 | 0.19 | -0.07 |
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| Schizodon nasutus | 0.10 | 0.05 | -0.16 | 0.47 | 0.12 | 0.17 | -0.15 | 0.50 |
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| Steindachnerina brevipinna | -0.06 | 0.24 | -0.06 | -0.30 | -0.04 | 0.28 | -0.08 | -0.34 |
|---|
| Total of juveniles | -0.04 | -0.04 | -0.40 | -0.01 | -0.07 | 0.04 | -0.41 | -0.04 |
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