Biologia reprodutiva de Pachyurus bonariensis (Perciformes, Sciaenidae) na fase pré-represamento do arroio Taquarembó, Sul do Brasil

Lagemann, Giovana Inês; Fialho, Clarice Bernhardt

doi:10.1590/1678-476620141042216222

Cited by 4 publications

(4 citation statements)

References 18 publications

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“…Although such reviews are not available, we can compare our estimates with the available literature (Tab. 3), excluding estimates from distant hydrographic basins (e.g., Nomura, 1975;Barbieri, 1989;Araújo-Lima, Bittencourt, 2001;Mesones et al, 1998;Sá-Oliveira, Chellappa, 2002;Flores, Hirt, 2002;Lagemann, Fialho, 2014). Although these authors all worked with the same nominal species as in the present study, the geographical distances imply not only very different environmental pressures on each species, but also the possibility of different evolutionary units within the same taxon designation.…”

Section: Discussionmentioning

confidence: 79%

Defining the reproductive period of freshwater fish species using the Gonadosomatic Index: a proposed protocol applied to ten species of the Patos Lagoon basin

et al. 2018

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This contribution records the reproductive periods of ten dominant freshwater fish species from the Patos Lagoon and Guaíba Lake (Astyanax fasciatus, Cyphocharax voga, Hoplias malabaricus, Oligosarcus jenynsii, Oligosarcus robustus, Hoplosternum littorale, Loricariichthys anus, Parapimelodus nigribarbis, Trachelyopterus lucenai, Pachyurus bonariensis). Data were derived from monthly samples in Casamento Lake (northern Patos Lagoon; Nov. 2002 to Apr. 2004) and Guaíba Lake (Jun. 2005 to May 2006). The reproductive period was determined according to the monthly variation of the gonadosomatic index (GSI). Fish reproduction was identified during all months of the year. Oligosarcus jenynsii started reproduction in winter, but extended spawning to spring (early warming-water reproduction). Three species also presented reproduction during warming water months, but beginning in spring and finishing in summer (late warm-water reproduction): P. nigribarbis, T. lucenai and P. bonariensis. Three species presented relatively short reproduction periods on summer (spotted warm-water reproduction): H. malabaricus, H. littorale and L. anus, and only one species reproduces almost continuously during warmer waters (long-season warm-water reproduction): A. fasciatus. Finally, two other species presented a very distinct reproductive pattern, starting reproduction on late summer but increasing GSI values along autumn and winter (long-season cooling-water reproducers): C. voga and O. robustus.

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Section: Discussionmentioning

confidence: 79%

Defining the reproductive period of freshwater fish species using the Gonadosomatic Index: a proposed protocol applied to ten species of the Patos Lagoon basin

et al. 2018

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“…The species representing the families Ariidae (B. bagre), Lutjanidae (L. synagris) and Scianidae (N. microps) analyzed in this study regarding the variables length and general weight are following the standard values found in the literature (Lagemann and Fialho, 2014;Marceniuk, 2005;Santander-Neto et al, 2020). These species have high economic and gastronomic importance due to their high protein value and ease of capture (trawl and gill net), featuring prominently (Almeida et al, 2011;Sousa et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

Morphometry and morphology of fish otoliths on the coast of the state of Maranhão, Brazil

Santos,

Silva,

Silva

et al. 2024

Braz. J. Biol.

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The main objective of this study was to evaluate the biometric relationships between the species Bagre bagre, Lutjanus synagris and Nebris microps and their otoliths. The relationship between the size of the otolith (length and weight) and the size of the fish (standard length and total weight) was determined using the linear regression model (y = a + bx). For the morphological description, the otoliths of three specimens were selected by standard length class (10mm). The morphological characters analyzed were chosen according to traditional literature. Three hundred eight specimens of B. bagre, 200 of L. synagris and 237 of N. microps were analyzed. Throughout the collection period, the source of the capture of individuals was the municipality of Raposa. The linear correlations for fish and otolith length for B. bagre were 0.9129 and 0.9652, respectively. For L. synagris, the coefficients were 0.8634 and 0.8672, while for N. microps, 0.9597 and 0.8636, respectively. The morphological classification of L. synagris and N. microps is of the Saggita type, and the B. bagre species is of the Lapillus type. From the data presented here, it is possible to observe that otolith morphometric and morphological data can serve as a parameter to estimate the relationship between the fish and the otolith in terms of its biomass and the length of an individual and a population.

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“…C:N ratio in several samples surpassed 3.5, suggesting that mathematical lipid correction of samples was necessary, thus samples were lipid corrected using the equation 3 developed by Post et al (2007). Agostinho et al, 2003;Rosso, 2006;Lagemann & Fialho, 2014;Zaniboni-Filho et al, 2004., em preparação.…”

Section: Sampling For Of Stable Isotopesmentioning

confidence: 99%

Riparian forest subsidises the biomass of fish in a recently formed subtropical reservoir

Felden

González‐Bergonzoni

Rauber

et al. 2020

Ecology of Freshwater Fish

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The study of the origin of carbon sources for biomass and energy pathways in riverine food chains is essential in understanding of ecosystem functioning (Deng et al., 2018). Particularly, the transformation of organic matter into primary and secondary production is an essential process that promotes biodiversity patterns and associated ecosystem services (e.g. Humphries, Keckeis, & Finlayson, 2014). Within this context, the investigation of energy pathways that support the production of biomass of metazoan organisms has become one of the most important focuses of study in aquatic food web ecology in the recent decades. Models that describe the energy flow include the River Continuum Concept (RCC, Vannote, Minshall,

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Biologia reprodutiva de Pachyurus bonariensis (Perciformes, Sciaenidae) na fase pré-represamento do arroio Taquarembó, Sul do Brasil

Cited by 4 publications

References 18 publications

Defining the reproductive period of freshwater fish species using the Gonadosomatic Index: a proposed protocol applied to ten species of the Patos Lagoon basin

Defining the reproductive period of freshwater fish species using the Gonadosomatic Index: a proposed protocol applied to ten species of the Patos Lagoon basin

Morphometry and morphology of fish otoliths on the coast of the state of Maranhão, Brazil

Riparian forest subsidises the biomass of fish in a recently formed subtropical reservoir

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