Reproductive biology of Sciades herzbergii (Siluriformes: Ariidae) in a tropical estuary in Brazil

Queiroga, Fernando Ramos; Golzio, Jéssica Emília S. A.; Santos, Raphaela B. dos; Martins, Tayná Oliveira; Vendel, Ana Lúcia

doi:10.1590/s1984-46702012000500002

Cited by 10 publications

(10 citation statements)

References 13 publications

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“…Las tallas encontradas de hembras y machos durante este estudio no mostraron diferencias significativas, como se ha reportado para B. marinus en Brasil (Pinheiro et al 2006) y en México (Caballero-Chávez 2013) mostrando que no existe un dimorfismo sexual referido a la talla como ha sido reportado para otros aríidos (Rimmer & Merrick 1983), sin embargo, esto también puede estar en función de las tallas capturadas (selectividad del arte de pesca). De manera general, se observó una dominancia de hembras (182) sobre los machos (164) tal y como se ha reportado para otras especies de la familia Ariidae (Pinheiro et al 2006, Queiroga et al 2012. La proporción sexual fue diferente de 1:1 en marzo (1:0,85, M:H) y en octubre (1:2,56); sin embargo, no hubo diferencia para el total de las muestras (1:1,11, M:H).…”

Section: Discussionunclassified

“…La proporción sexual fue diferente de 1:1 en marzo (1:0,85, M:H) y en octubre (1:2,56); sin embargo, no hubo diferencia para el total de las muestras (1:1,11, M:H). Este fenómeno ha sido reportado para otras especies de bagres (Lara-Domínguez et al 1981, Queiroga et al 2012, Caballero-Chávez 2013. Sin embargo, en B. marinus del Noreste de Brasil la proporción sexual (Pinheiro et al 2006).…”

Section: Discussionunclassified

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Periodo reproductivo del bagre chihuil <i>Bagre panamensis</i> (Siluriformes: Ariidae) en el sureste del Golfo de California

Zavala‐Leal

Palacios-Salgado

Ruiz-Velazco

et al. 2019

Rev. biol. mar. oceanogr.

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ArtículoPeriodo reproductivo del bagre chihuil Bagre panamensis (Siluriformes: Ariidae) en el sureste del Golfo de CaliforniaReproductive period of the chihuil sea catfish Bagre panamensis (Siluriformes: Ariidae) inhabiting the southeast Gulf of California Abstract.-Chihuil sea catfish Bagre panamensis is a fishing resource exploited throughout the year and without restrictions on the central coast of the Mexican Pacific. In order to properly manage the commercial fishery of some resource, it is important to know aspects of its biology such as reproduction. In the present study, the reproduction period was estimated through the gonadosomatic index (GSI), hepatosomatic index (HSI) and the condition factor of B. panamensis. Samples were obtained monthly between November 2015 and October 2016 of commercial fishing from San Blas area. A total of 346 specimens were collected, which 182 were females and 164 males. The sizes (total length and weight) found did not show differences between genders. Sex ratio was not different from 1:1 for the total of the samples. The weight-length relationship showed that both sexes presented a positive allometric growth type. According to the gonadosomatic (GSI) and hepatosomatic index (HSI), this specie has a breeding period per year, which runs from May to August. Based on these results, a management strategy for this fishery could be proposed in the southeastern Gulf of California.Resumen.-El bagre marino Bagre panamensis es un recurso pesquero que se explota a lo largo de todo el año y sin restricción alguna en el sureste del Golfo de California. Para manejar de manera adecuada la pesquería comercial de algún recurso, es importante conocer aspectos de su biología básica como la reproducción. En el presente estudio se estimó el periodo de reproducción a través de los índices gonadosomático (IGS), hepatosomático (IHS) y el factor de condición de B. panamensis. Las muestras fueron obtenidas mensualmente entre noviembre de 2015 y octubre de 2016 de la pesca comercial del área de San Blas. Se recolectaron 346 ejemplares de los cuales 182 fueron hembras y 164 machos. Las tallas (longitud total y peso) encontradas no mostraron diferencias entre sexos. La proporción sexual no fue diferente de 1:1 para el total de las muestras. La relación peso-longitud mostró que ambos sexos presentaron un tipo de crecimiento alométrico positivo. De acuerdo al índice gonadosomático (IGS) y el hepatosomático (IHS) se observó que esta especie presenta un periodo de reproducción al año, que va de mayo a agosto. Con base en estos resultados, se podría proponer una estrategia de manejo para esta pesquería en el sureste del Golfo de California.Palabras clave: Bagre panamensis, índice gonadosomático, índice hepatosomático, proporción sexual

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Section: Discussionunclassified

Periodo reproductivo del bagre chihuil <i>Bagre panamensis</i> (Siluriformes: Ariidae) en el sureste del Golfo de California

Zavala‐Leal

Palacios-Salgado

Ruiz-Velazco

et al. 2019

Rev. biol. mar. oceanogr.

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“…Os tamanhos de primeira maturidade sexual calculados para o B. bagre são considerados baixos, em comparação aos tamanhos de primeira maturação do bagre marinho Sciades herzbergii, que apresentou tamanhos de primeira maturação de 22 cm para fêmeas e 23,1 cm para machos (Queiroga et al, 2012), levando em consideração que as duas espécies apresentam padrão de crescimento semelhante. extrativa retira do ambiente os indivíduos maiores e/ou mais velhos, tal prática, remove os peixes que são geneticamente predispostos ao crescimento rápido e maturação tardia, gerando uma pressão que tende a favorecer genótipos com crescimento mais lento e menor tamanho de maturação (Conover & Munch, 2002;Berkeley et al, 2004), que podem se tornar cada vez mais constantes nas capturas.…”

Section: Resultsunclassified

Biologia reprodutiva do Bagre bagre capturado pela pescaria de zangaria

Veras

Almeida

2016

Agraria

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RESUMONeste estudo, objetivou-se analisar a biologia reprodutiva do Bagre bagre proveniente da pescaria de zangaria, na Ilha de Peru, Reserva Extrativista de Cururupu-MA, Brasil. O Bagre bagre, segunda espécie de peixe mais abundante nessa pescaria (16,82%), teve a biologia reprodutiva estudada ao longo de um ano (setembro/2014 a agosto/2015), com coletas mensais em duas zangarias na RESEX de Cururupu. Foi coletado um total de 320 espécimes de Bagre bagre. Desse total, 170 eram fêmeas e 150 machos. O tamanho das fêmeas variou entre 13 e 55 cm, enquanto que o tamanho dos machos variou entre 14,8 e 38 cm. O tamanho de primeira maturidade calculado foi de 15,9 cm para as fêmeas e 21,2 cm para os machos. Levando-se em conta a frequência dos estágios maturacionais e a relação gonadossomática, foi possível constatar que o período reprodutivo da espécie foi entre os meses de dezembro e março. Palavras-chave: fauna acompanhante, período reprodutivo, primeira maturidade Reproductive biology of Bagre bagre captured by zangaria fishery ABSTRACTIn this study we aimed to analyze the reproductive biology of Bagre bagre from zangaria fishery in Peru island, Reserva Extrativista de Cururupu, Maranhão, Brazil. The Bagre bagre, is second species of fish most abundant in this fishery (16.82%), had its reproductive biology studied for over a year (September/2014 to August/2015, with monthly collections in two types the zangarias. A total of 320 specimens of Bagre bagre was captured. Overall, 170 were females and 150 males. The size of the females it ranged between 13 and 55 cm, while the size of the males sit ranged between 14.8 and 38 cm. The first maturity calculated size was 15.9 cm for females and 21.2 cm for males. Analyzing the frequency of maturation stages and gonadosomatic relationship, it we found that the reproductive period of the species was between the months of December and March.

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“…This region has an annual average of 1800 mm rainfall and 26 °C of air temperature. At this estuary, seawater salinity and temperature range between 5–40 psu and 27–32 °C, respectively (Queiroga et al 2012 ).…”

Section: Methodsmentioning

confidence: 99%

Effects of salinity and temperature on in vitro cell cycle and proliferation of Perkinsus marinus from Brazil

et al. 2016

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SUMMARYField and in vitro studies have shown that high salinities and temperatures promote the proliferation and dissemination of Perkinsus marinus in several environments. In Brazil, the parasite infects native oysters Crassostrea gasar and Crassostrea rhizophorae in the Northeast (NE), where the temperature is high throughout the year. Despite the high prevalence of Perkinsus spp. infection in oysters from the NE of Brazil, no mortality events were reported by oyster farmers to date. The present study evaluated the effects of salinity (5, 20 and 35 psu) and temperature (15, 25 and 35 °C) on in vitro proliferation of P. marinus isolated from a host (C. rhizophorae) in Brazil, for a period of up to 15 days and after the return to the control conditions (22 days; recovery). Different cellular parameters (changes of cell phase's composition, cell density, viability and production of reactive oxygen species) were analysed using flow cytometry. The results indicate that the P. marinus isolate was sensitive to the extreme salinities and temperatures analysed. Only the highest temperature caused lasting cell damage under prolonged exposure, impairing P. marinus recovery, which is likely to be associated with oxidative stress. These findings will contribute to the understanding of the dynamics of perkinsiosis in tropical regions.

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Reproductive biology of Sciades herzbergii (Siluriformes: Ariidae) in a tropical estuary in Brazil

Cited by 10 publications

References 13 publications

Periodo reproductivo del bagre chihuil <i>Bagre panamensis</i> (Siluriformes: Ariidae) en el sureste del Golfo de California

Periodo reproductivo del bagre chihuil <i>Bagre panamensis</i> (Siluriformes: Ariidae) en el sureste del Golfo de California

Biologia reprodutiva do Bagre bagre capturado pela pescaria de zangaria

Effects of salinity and temperature on in vitro cell cycle and proliferation of Perkinsus marinus from Brazil

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