Population structure of Phalloceros caudimaculatus (Hensel, 1868) (Cyprinodontiformes, Poeciliidae) collected in a brook in Guarapuava, PR

Wolff, Luciano Lazzarini; Hreciuk, Ericsson Ricardo; Viana, Douglas; Zaleski, Tânia; Donatti, Lucélia

doi:10.1590/s1516-89132007000300008

Cited by 12 publications

(9 citation statements)

References 14 publications

(14 reference statements)

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“…The high dominance of P. harpagos can be related to a variety of feeding habits Rocha et al 2009) and constant reproduction (Wolff et al 2007). This species present a preference for pools with medium water column deep and mud substrata (Mazzoni et al 2011), and in this research, groups of adult specimens were always visualized swimming, while juveniles could be seen in macrophyte banks.…”

Section: Resultssupporting

confidence: 51%

“…Phalloceros harpagos occurred in both Conceição and Jurema streams, while Gymnotus inaequilabiatus occurred in Conceição and Scherer streams. Both species are characterized by their generalist behavior and ability to survive into a wide variety of environmental conditions (Campos-da-Paz, 2003;Wolff et al 2007), favoring their presence in more than one stream.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Fishes from first order streams of lower Paranapanema and Ivaí rivers, upper Paraná River basin, Paraná, Brazil

Cionek¹,

Sacramento²,

Zanatta³

et al. 2012

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This study was developed as a research of first order streams fish assemblages located in two Conservation Units in Northwestern Paraná, Brazil, with the purpose of providing information about ichthyofauna composition of these water bodies while they are still under protection. There were captured 2,557 individuals belonging to six orders, nine families and 10 species in three streams. The most abundant species were Phalloceros harpagos (44%) from Conceição stream, Astyanax aff. paranae (14%) and P. harpagos (12%) from Jurema stream, and Melanorivulus apiamici (9%) from Conceição stream. Trichomycterus sp. could not be identified into a specific level, meaning it can represent an undescribed species to science, registered for the first time at the upper Paraná River basin.

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Section: Resultssupporting

confidence: 51%

Section: Resultsmentioning

confidence: 99%

Fishes from first order streams of lower Paranapanema and Ivaí rivers, upper Paraná River basin, Paraná, Brazil

Cionek¹,

Sacramento²,

Zanatta³

et al. 2012

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“…This accounts for the positive allometry recorded in the females (b ≈ 3.4), refl ecting a strategy aimed at maximizing reproductive output, in which the females accumulate as much energy as possible for their gonadal production (Keane & Neira 2004, Wolf et al 2007.…”

Section: Discussionmentioning

confidence: 85%

Length-weight relationship and reproduction of the guppy Poecilia reticulata (Cyprinodontiformes: Poeciliidae) in urban drainage channels in the Brazilian city of Belém

et al. 2011

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. The estimated value of L was 17.5 mm for males and 20.4 mm for females, suggesting that males initiate reproductive activity at a smaller size than females. The abundance of mature females did not vary significantly among months, and there was little variation in the sex ratio, which was close to parity overall. Despite the adverse conditions encountered in the UFPA drainage system, P. reticulata appeared to have adapted its biological processes adequately. Resumo: O presente trabalho tem por objetivo descrever aspectos populacionais relacionados ao estabelecimento da relação peso/comprimento, estimativa de tamanho de primeira maturação (L) e período reprodutivo de Poecilia reticulata encontrados em sistemas de coleta residual no campus da Universidade Federal do Pará, região metropolitana de Belém -PA (Brasil). Foram realizadas coletas mensais no período de junho de 2006 a março de 2007, utilizando um puçá, que resultou na captura de 1.936 exemplares, sendo 942 machos e 994 fêmeas. As fêmeas apresentaram-se maiores e mais pesadas que os machos. A relação peso/comprimento para machos foi estabelecida pela equação Pt = 5 × 10 -5 × Ct 2,397 e para fêmeas esta foi dada pela fórmula Pt = 3 × 10 -6 × Ct 3,419. Os valores estimados para L foi 17,5 mm para machos 20,4 mm para fêmeas, sugerindo que os machos iniciam atividades reprodutivas em tamanhos menores que as fêmeas. A frequência mensal de fêmeas maduras não variou significativamente. Além disso, também não foram encontradas diferenças na proporção sexual durante os períodos investigados, sendo no geral, a proporção de fêmeas iguais as de machos. Desta forma, verificamos que, apesar das condições presentes nos sistemas de coleta residual da UFPA, a espécie P. reticulata parece ter adaptado seus processos biológicos. Palavras-chave: autoecologia de peixes, ambientes urbanos, reprodução, amazônia, poecilia reticulata. 94 Montag, L.F.A. et al.

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“…The organism used as test in this study was the Phalloceros caudimaculatus fish (Fig. 1), known as Guaru, the Cyprinodontiformes order, Poeciliidae Family [15], found in Laguna dos Patos drainage basin, in the lower parts of the Uruguay river drainage basin, Tramandaí and Mampituba rivers drainage and also in coastal areas of Uruguay and Argentina [16].…”

Section: Introductionmentioning

confidence: 99%

“…According to Akanksha et al (2010) [6], a suitable test organism should have characteristics: be ecologically representative group, viviparous with short reproductive cycle, easy availability, cosmopolitan and also a native species of Brazil [15].…”

Section: Introductionmentioning

confidence: 99%

Toxicity test and Cd, Cr, Pb and Zn bioccumulation in Phalloceros caudimaculatus

Filho

Caldas²,

Rosa³

et al. 2017

Egyptian Journal of Basic and Applied Sciences

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The use of animals as bioindicators has been useful, especially in the evaluation of environmental impact of pollutant discharges in aquatic ecosystems. This study, aims to assess the fish Phalloceros caudimaculatus (known as Guaru) as a heavy metal sbioindicator. LC50 (96 h) acute toxicity tests to potassium dichromate salts, cadmium nitrate, lead II nitrate and zinc sulfate, and bioaccumulation of metals such as cadmium, chromium, lead and zinc were conducted. In the bioaccumulation test, for three months standard tanks were used, with different contamination levels above the levels set by local law, a pollution control tank was also set. The following data was obtained in acute toxicity tests LC50 (96 h): Potassium dichromate 164.58 ± 18.75 mg/L, Cadmium nitrate was 29.5 ± 1.21 mg/L, Lead nitrate was 15.5 ± 0.47 mg/L and zinc sulfate was 62.8 ± 2.81 mg/L. The bioconcentration factor (BCF) maintained the order Zn > Pb > Cd > Cr, where the resulting values were considered high for the four elements ranging from 92.4 (Cr) to 1793.1 (Zn). Based on the test results, the Guaru fish proved resistant to the presence of these metals and a showed a high bioaccumulation rate. Thus, it can be used as a bioindicator of heavy metals.

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Population structure of Phalloceros caudimaculatus (Hensel, 1868) (Cyprinodontiformes, Poeciliidae) collected in a brook in Guarapuava, PR

Abstract: The population structure of Phalloceros caudimaculatus was studied in a brook (sites A and B)

Cited by 12 publications

References 14 publications

Fishes from first order streams of lower Paranapanema and Ivaí rivers, upper Paraná River basin, Paraná, Brazil

Fishes from first order streams of lower Paranapanema and Ivaí rivers, upper Paraná River basin, Paraná, Brazil

Length-weight relationship and reproduction of the guppy Poecilia reticulata (Cyprinodontiformes: Poeciliidae) in urban drainage channels in the Brazilian city of Belém

Toxicity test and Cd, Cr, Pb and Zn bioccumulation in Phalloceros caudimaculatus

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