Life history traits of Characidium pterostictum (Characiformes, Crenuchidae) along the longitudinal gradient of a Neotropical river in southern Brazil
Author
Fitz, Raquel C.
Author
Rodenbusch, Cesar A.
. Setor de Ictiologia, Museu de Ciências Naturais, Fundação Zoobotânica do Rio Grande do Sul, Rua Dr. Salvador França, 1427, 90.690 - 000 Porto Alegre, RS, Brazil. (marco-azevedo @ fzb. rs. gov. br)
Author
Dala-Corte, Renato B.
. Setor de Ictiologia, Museu de Ciências Naturais, Fundação Zoobotânica do Rio Grande do Sul, Rua Dr. Salvador França, 1427, 90.690 - 000 Porto Alegre, RS, Brazil. (marco-azevedo @ fzb. rs. gov. br)
Author
Azevedo, Marco A.
. Programa de Pós-Graduação em Ecologia, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves 9500, Caixa Postal 15007, 91501 - 970 Porto Alegre, RS, Brazil.
text
Iheringia, Série Zoologia
2017
e 2017002
2016-12-31
107
1
11
http://dx.doi.org/10.1590/1678-4766e2017002
journal article
10.1590/1678-4766e2017002
1678-4766
10525515
Tab. II. Pearsons’s correlations (r) of mean gonadosomatic index (GSI) with biotic (RI and HSI) and abiotic factors (Twater, Tair, Photo and Rainfall) for females and males Characidium pterostictum Gomes, 1947 sampled at Upstream, Intermediate, and Downstream sites, upper Sinos river, RS. Values with asterisk indicate statistically significant correlation with Bonferroni correction P-value for multiple tests (corrected-P). Only females were sampled in the upstream site (RI, repletion index; HSI, hepatosomatic index; Twater, water temperature; Tair, air temperature; Photo, photoperiod; Rainfall, accumulated rainfall for the region). | Pearsons’s correlation | RI | HSI | Twater | Tair | Photo | Rainfall |
|---|
| Females Upstream | r corrected-P | 0.09 1.000 | -0.55 1.000 | 0.38 1.000 | 0.37 1.000 | 0.80 0.353 | -0.46 1.000 |
|---|
| Females Intermediate | r corrected-P | -0.43 1.000 | -0.31 1.000 | 0.38 1.000 | 0.41 1.000 | 0.43 1.000 | -0.41 1.000 |
|---|
| Females Downstream | r corrected-P | -0.52 1.000 | -0.36 1.000 | 0.67 0.360 | 0.59 0.934 | 0.85 0.010* | -0.10 1.000 |
|---|
| Males Intermediate | r corrected-P | 0.34 1.000 | -1.00 0.010* | 0.82 1.000 | 0.76 1.000 | 0.89 1.000 | -0.41 1.000 |
|---|
| Males Downstream | r corrected-P | 0.25 1.000 | 0.68 0.421 | 0.59 1.000 | 0.59 1.000 | 0.90 0.004* | -0.18 1.000 |
|---|