Fecundidade da manjuba Curimatella lepidura (CURIMATIDAE) na represa de Três Marias, rio São Francisco, MG

Andrade, Dálcio Ricardo de; Vidal, Manuel Vazquez; Godinho, Hugo Pereira; Tonini, William Cristiane Teles; Burket, D

doi:10.1590/s0102-09352010000600016

Cited by 5 publications

(3 citation statements)

References 19 publications

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“…lepidura in three sections of the SFR. Previous studies relating to the reproduction of this species have only been performed in lentic environments and have only addressed its reproductive biology and diet in the Juramento reservoir, Verde Grande River, Brazil (Alvarenga et al, 2006) and fecundity and testicular maturation in the TMR (Andrade, Tonini, et al, 2010; Andrade, Vidal Junior, et al, 2010). The present study compares the reproduction of this species in three river sections encompassing both lentic and lotic environments.…”

Section: Discussionmentioning

confidence: 99%

Morphological analysis of the reproductive activity of Curimatella lepidura (Characiformes: Curimatidae)

Gontijo

Marcon

Rizzo

et al. 2022

Anat Histol Embryol

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Curimatella lepidura, commonly known as the manjuba, belongs to the Curimatidae family. To assess the reproductive activity of this species, fish were collected from three sections of the São Francisco River: section 1 = the Três Marias reservoir (TMR), section 2 = the SFR immediately downstream of the TMR, and section 3 = the SFR 54 km downstream from the TMR after the confluence of the SFR with the Abaeté River. Fish were collected bimonthly from January to December 2012. From this, the gonadosomatic index (GSI), Fulton condition factor (K), gonadal maturation stages in females and males, and diameters of vitellogenic follicles were determined. That is, this study employed histological and histometrical techniques to study the ovaries and testes of collected fish. The Fulton condition factor was statistically higher in section 1 than in the other sections, indicating that C. lepidura presents better health conditions in this section. Fish in the maturation/mature gonadal stage were collected in the November/December and January/February bimesters, coinciding with high temperatures, a long photoperiod, and abundant rainfall in this region. The mean vitellogenic follicle diameter was statistically lowest for sections 2 and 3, with a better impact on reproduction than in section 1. Overall, the results show that C. lepidura has reproductive success in lentic environments, such as in section 1, the TMR.

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Section: Discussionmentioning

confidence: 99%

Morphological analysis of the reproductive activity of Curimatella lepidura (Characiformes: Curimatidae)

Gontijo

Marcon

Rizzo

et al. 2022

Anat Histol Embryol

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“…En otras especies de la familia Curimatidae se han reportado diámetros de ovocitos maduros similares a los observados en el presente estudio. Andrade et al, (2010) (Honji et al, 2012). La fuerte hidratación del huevo es una característica de los huevos de los peces reofílicos, por su condición de huevos semi-pelágicos (huevos de flotabilidad neutra) que requieren de un medio lótico para viabilizar el embrión.…”

Section: Discussionunclassified

Reproducción en cautiverio de vizcaína Curimata mivartii con extracto pituitario de carpa

Montes-Petro¹,

Atencio-García²,

Estrada-Posada³

et al. 2019

Orinoquia

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Con el objetivo de reproducir vizcaína Curimata mivartii, ejemplares de dos años de edad (n= 54), mantenidos en estanques en tierra (0,1 pez/m2) fueron inducidos con extracto pituitario de carpa (EPC) (Argent, USA) a razón de 6 mg/Kg de peso para las hembras en dos aplicaciones (10 % y 90% con 12 horas entre aplicación); mientras que los machos fueron inducidos con 4,8 mg/Kg EPC en dosis única. Antes de la inducción hormonal a cada hembra le fue realizada biopsia para verificar su estado de maduración gonadal. La muestra de ovocitos fue tratada con solución Serra (Chemí, Colombia) y después de tres minutos, con la ayuda de un estereoscopio de luz, (Leica, EZ4 W, Alemania) en objetivo de 4x, se determinó posición de la vesícula germinal (céntrico, migrando, periférico, sin núcleo). El análisis de la biopsia ovárica mostró que las hembras se encontraban en maduración final. Los machos inducidos se encontraron en fase de espermiación; los cuales a ligera presión abdominal liberaron líquido seminal. Se estimó el índice de ovulación, fecundidad (absoluta y relativa), diámetro de los ovocitos y volumen seminal. El porcentaje de fertilidad fue estimado a las cuatro horas post-eclosión (hpe) y el porcentaje de eclosión fue estimado a las 10 hpe. Las hembras ovularon entre 5 y 6 horas (28±1,0°C) e inmediatamente los huevos fueron obtenidos por extrusión, así como el semen. La fecundidad absoluta fue de 178331,6±28773,7 ovocitos/hembra y la relativa 137,7±19,6 g ovocitos/Kg de hembra. El diámetro de los ovocitos recién desovados fue de 687,2±42,8 μm. La fertilidad fue de 90,7±1,4% y la eclosión de 85,3±1,5%. Los resultados permiten concluir que EPC a dosificación de 6mg/Kg de peso es un buen inductor de la reproducción de vizcaína, con alto índice de ovulación y altos porcentajes de fertilidad y eclosión.

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“…The Itapecerica river, where the P. argentea was caught, receives generalized pollution from organic and industrial effluents as a result of poorly planned municipal sewage systems (IGAM, ). The absolute fecundity of the Characidae varies greatly due to the body size of the species, because smaller fish have less capacity to store oocytes (Andrade, Junior, Godinho, Tonini, & Burket, ). The fecundity relative to the body weight of P. argentea presented a high positive correlation, as expected.…”

Section: Discussionmentioning

confidence: 99%

Oogenesis is accompanied by cyclic morphological changes in hepatocytes of Neotropical freshwater fish Piabina argentea

Thomé

Cardoso

Oliveira

et al. 2018

Anat Histol Embryol

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We determined for the first time the reproductive biology of Piabina argentea through macroscopic and microscopic analysis of ovaries and evaluated the morphological changes in hepatocytes. Two hundred and 46 specimens were collected, 204 females and 42 males, between March 2014 and February 2015. Biometrics data were obtained. From females, gonad and liver samples were conducted to histological, histochemical and immunohistochemical techniques. Mature ovaries were used to determine absolute and relative fecundity. Total length and body weight values indicated that females were larger than males. The estimated weight-length ratio showed negative allometric growth. The absolute fecundity average was 171.83 ± 59.89 oocytes per ovary. In addition, females spawning capable and regressing stages were found throughout the sampling period and the presence of all oocyte types in regressing stage ovaries indicated asynchronous oocyte development and multiple spawning. From regenerating to spawning capable stage the oocytes accumulated yolk in cytoplasm became bigger. While in the liver hepatocytes with a larger cell area during regenerating stage and proliferative activity in the spawning capable stage were observed. Thus, our results indicate that P. argentea had an opportunistic reproductive strategy and cyclic morphological changes of hepatocytes occurred during the oogenesis.

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Fecundidade da manjuba Curimatella lepidura (CURIMATIDAE) na represa de Três Marias, rio São Francisco, MG

Cited by 5 publications

References 19 publications

Morphological analysis of the reproductive activity of Curimatella lepidura (Characiformes: Curimatidae)

Morphological analysis of the reproductive activity of Curimatella lepidura (Characiformes: Curimatidae)

Reproducción en cautiverio de vizcaína Curimata mivartii con extracto pituitario de carpa

Oogenesis is accompanied by cyclic morphological changes in hepatocytes of Neotropical freshwater fish Piabina argentea

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