Egg Development of Paralichthys orbignyanus (Valenciennes, 1839)

Cerqueira, Vinícius Ronzani

doi:10.1590/s1516-89132005000300016

Cited by 8 publications

(9 citation statements)

References 6 publications

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“…orbignyanus eggs are quite similar to eggs of other species of the Family Paralichthydae as cited by Cerqueira et al (1997) and Cerqueira (2005). Egg diameter in these species varies from 0.70 to 1.38 mm (Ahlstrom et al, 1984).…”

Section: Discussionsupporting

confidence: 66%

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Larval culture technique and quality control in juveniles of flounder Paralichthys orbignyanus (Valenciennes, 1839) in Argentina

López

Müller

Radonic

et al. 2009

Span. j. agric. res.

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Paralichthyds are the most economically important fish in the Southern Atlantic due to their abundance, flesh quality, high market price and increasing fishery demand. In Argentina, the first juvenile mass production of flounder Paralichthys orbignyanus in captivity was done in 2002. Morphological description of the different stages of development (yolk sac, drifting, premetamorphic, metamorphic, postmetamorphic larvae and juvenile) are presented, including their duration (days post-hatching), degree-days and feeding schedule. Also, abnormalities in both pigmentation and eye-migration were characterized. Larval developmental stages described in this study for P. orbignyanus follow those described for P. olivaceus. At 40 days post-hatching (dph) and 798 ºC days, juveniles measured in average 11.6±0.5 mm. Mean survival rate after 142 dph was 49.7%. More than half of the total juveniles obtained (59.1%) were albino, whereas 15.5% were normally pigmented and 13.2% showed abnormal eye migration (dextral or reversed). Development of larval culture methods and quality control of batches will allow the optimization of P. orbignyanus juvenile mass production.Additional key words: eye-migration, flatfish, juvenile abnormalities, fish larval development, fish larval rearing. ResumenTécnica de cultivo larvario y control de calidad en juveniles del lenguado Paralichthys orbignyanus (Valenciennes, 1839) en ArgentinaLos lenguados de la Familia Paralichthydae constituyen un recurso muy importante en el Atlántico Sur debido a su abundancia, calidad de su carne, alto precio en el mercado e incremento del esfuerzo pesquero. En Argentina, la primera producción masiva de juveniles del lenguado Paralichthys orbignyanus en cautiverio se realizó con éxito en el año 2002. Se decribe la morfología de los diferentes estadios de desarrollo de esta especie (larvas vitelina, pelágica, premetamórfica, metamórfica, postmetamórfica, y juvenil), relacionándolos con la duración de los mismos (días posteriores a la eclosión), grados días y el esquema alimentario aplicado. Además se caracterizan las anormalidades pigmentarias y aquéllas relacionadas con la migración ocular. Los estadios del desarrollo larvario de P. orbignyanus son similares a los descriptos para P. olivaceus. A los 40 días posteriores a la eclosión y 798 grados días, se alcanzó el estadio de juvenil con una talla media de 11,6±0,5 mm. La supervivencia promedio obtenida al cabo de 142 días de cultivo fue de 49,7%. Más de la mitad de los juveniles obtenidos (59,1%) fueron albinos, mientras que el 15,5% presentó pigmentación normal. El 13,2% de la camada mostró migración del ojo al lado derecho del cuerpo (individuos dextro). El desarrollo de métodos de cultivo larvario y el control de calidad de las camadas obtenidas, permitirá la optimización de la producción masiva de juveniles de P. orbignyanus.Palabras clave adicionales: anormalidades larvales, cultivo de larvas, desarrollo larvario, migración ocular, pez plano.Abbreviations used: DHA (docosahexaenoic acid), dph (days po...

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Section: Discussionsupporting

confidence: 66%

“…Moreover, P. orbignyanus larvae show a body length pattern similar to species of the Family Paralichthydae (Cerqueira, 2005). This author reported total lengths at hatching of P. orbignyanus larvae ranging from 1.98 to 2.09 mm, when females were hand-stripped.…”

Section: Discussionmentioning

confidence: 86%

Larval culture technique and quality control in juveniles of flounder Paralichthys orbignyanus (Valenciennes, 1839) in Argentina

López

Müller

Radonic

et al. 2009

Span. j. agric. res.

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“…There is increasing interest in the culture of this species due to its high demand, elevated market price and meat quality. Studies related to physiology (Bianchini, Wasielesky Jr & Miranda 1996; Wasielesky Jr, Bianchini & Miranda 1998; Sampaio & Bianchini 2002), reproduction (Lanes, Okamoto, Cavalcanti, Collares, Campos, Des‐champs, Robaldo, Marins & Sampaio 2008; Sampaio, Robaldo & Bianchini 2008; Radonic 2009), embryology (Cerqueira 2005), larviculture (Sampaio, Freitas, Okamoto, Louzada, Rodrigues & Robaldo 2007) and grow‐out (Sampaio, Bianchini & Cerqueira 2001) support the development of P. orbignyanus culture.…”

Section: Introductionmentioning

confidence: 99%

Sperm quality of Brazilian flounder Paralichthys orbignyanus throughout the reproductive season

Lanes

Okamoto

Bianchini

et al. 2010

Aquaculture Research

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The aim of this study was to evaluate the sperm quality of Brazilian £ounder Paralichthys orbignyanus throughout its reproductive season. Sperm was collected at the beginning, middle and end of the breeding period. Spermatozoa density was maximum at the beginning (12.7 AE 0.92 Â 10 9 cells mL À 1 ) and at the end (11.8 AE 0.39 Â 10 9 cells mL À 1 ) of the breeding season (Po0.05). Sperm production and the percentage of spermatozoa moving fast forward increased signi¢cantly towards the end of the breeding season (Po0.05). The mean duration of progressive motility of spermatozoa was around 10 min. No di¡erence was observed during the reproductive season in the percentage of motile cells, pH, osmolality and K 1 , Cl À and Mg 21 concentrations in seminal plasma. The concentration of Na 1 increased throughout the breeding season, reaching 174.62 AE 12.68 mmol L À 1 at the end (Po0.05). There was a decline in the concentration of Ca 21 (12.31 AE 3.08 mmol L À 1 ) in the middle of the breeding season, which coincided with the shortest motility duration of spermatozoa. The information reported in this study should help to improve management and optimize the development of protocols for short-term storage and cryopreservation of Brazilian £ounder semen.

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“…However, both species depend on the marine environment for reproduction (SILVEIRA et al, 1995;ROBALDO, 2003;CERQUEIRA, 2005;SAMPAIO et al, 2007;CECCON et al, 2010;MILITELLI, 2011).…”

Section: Introductionmentioning

confidence: 99%

“…orbignyanus gametes and larvae can only survive and develop in seawater due to their anatomical and physiological characteristics. Therefore these fishes depend on seawater to reproduce although they can also live in brackish waters (CERQUEIRA, 2005;SAMPAIO et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Life history traits influence in gonad composition of two sympatric species of flatfish

et al. 2015

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Life history traits influence in gonad composition of two sympatric species of flatfishParalichthys orbignyanus and Paralichthys patagonicus are flatfish with different life history traits, having in common the condition of breeding in seawater. Paralichthys patagonicus remain their whole life in open seawater and Paralichthys orbignyanus are sometimes found in brackish water bodies. As marine and estuarine food webs have different fatty acid (FA) compositions, the aim of this study was to characterize the gonadal maturation of P. orbignyanus and P. patagonicus females through the analysis of lipid content and FA profile in order to understand to what extent life history traits are reflected in the ovarian composition. During gonadal maturation lipid content increased and FA profiles changed in both species, but the lipid increase was greater in P. orbignyanus. The N-3FA and n-3HUFA proportions increased in both species but were higher in P. orbignyanus. The differences between the lifestyles of these species were reflected in the ovarian FA profile mainly as a result of differences in their FA metabolism, causing a greater accumulation of n-3FA and n-3HUFA in P. orbignyanus than in P. patagonicus. The higher lipid accumulation in P. orbignyanus' ovaries could indicate that this species, feeding in brackish water bodies, has the possibility of storing more energy than P. patagonicus. Paralichthys patagonicus e Paralichthys orbignyanus apresentam diferentes atributos nas suas histórias de vida, embora ambas se reproduzam no mar. Paralichthys patagonicus permanece toda a vida em águas abertas, enquanto P. orbignyanus é comumente encontrado em corpos de água salobra. Considerando que redes alimentares marinhas e estuarinas têm diferente composição de ácidos graxos (FA), o objetivo deste estudo foi caracterizar a maturação gonadal de fêmeas de P. orbignyanus e P. patagonicus analisando o conteúdo lipídico e perfil FA, a fim de estabelecer se as diferenças nas histórias de vida são refletidas na composição do ovário. Durante a maturação gonadal, em ambas as espécies, houve aumento do teor lipídico e o perfil FA mudou, mas o incremento foi maior em P. orbignyanus. As proporções de N-3FA e n-3HUFA aumentaram em ambas as espécies, mas foram maiores em P. orbignyanus. As diferenças entre os estilos de vida destas espécies foram refletidas no perfil de FA dos ovários, principalmente como resultado das diferenças no metabolismo de FA, causando maior acúmulo de n-3FA e n-3HUFA em P. orbignyanus. O maior acúmulo de lipídios nos ovários de P. orbignyanus poderia indicar que esta espécie, ao se alimentar em águas salobras, tem a possibilidade de armazenar mais energia do que P. patagonicus. AbstrAct

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Egg Development of Paralichthys orbignyanus (Valenciennes, 1839)

Abstract: Eggs of the Southern Brazilian flounder

Cited by 8 publications

References 6 publications

Larval culture technique and quality control in juveniles of flounder Paralichthys orbignyanus (Valenciennes, 1839) in Argentina

Larval culture technique and quality control in juveniles of flounder Paralichthys orbignyanus (Valenciennes, 1839) in Argentina

Sperm quality of Brazilian flounder Paralichthys orbignyanus throughout the reproductive season

Life history traits influence in gonad composition of two sympatric species of flatfish

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