Cultivo de larvas de Ucides cordatus (LINNAEU, 1763) sob diferentes intensidades luminosas

Cottens, Kelly Ferreira; Silva, Ubiratã de Assis Teixeira da; Ventura, Raissa Wihby; Ramos, Fabrício Menezes; Ostrensky, Antônio

doi:10.1590/1678-6675

Cited by 5 publications

(3 citation statements)

References 15 publications

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“…4.2–42 µmoles m ˗2 s ˗1 ). Similar situation was observed in U. cordatus in the range from 210 to 710 lx (Cottens et al, ).…”

Section: Discussionsupporting

confidence: 83%

“…The present study shows that a light: dark cycle is more suitable for the larval culture of M . brachydactyla , independently of the duration of the light phase, as observed during the larval culture of other brachyurans, for example, Ranina ranina (Minagawa, ), Carcinus maenas (Dawirs, ), Portunus pelagicus (Andrés et al, ), and Ucides cordatus (Cottens, Silva, Ventura, Ramos, & Ostrensky, ). In brachyurans as Sesarma reticulatum , the survival of the larvae decreases with the shortening of the light period (Costlow & Bookhout, ), while in the anomurans as Birgus latro , the survival of the larvae decreases when cultured in constant darkness (Hamasaki, Ogiso, Dan, & Kitada, ); but such influence is not clear in the present study.…”

Section: Discussionmentioning

confidence: 91%

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Influence of temperature and light regime on the larval development of the common spider crab Maja brachydactyla Balss , 1922 (Brachyura: Majidae)

et al. 2018

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Temperature and light are important factors affecting production in the aquaculture industry, as they can drive behaviour and physiological responses of free-swimming larval stages. However, the influence of light on crustacean farming has received little consideration. The common spider crab Maja brachydactyla Balss, 1922 has a great potential for aquaculture because of the easy maintenance, high fecundity, and short larval development. In order to optimize larval culture techniques, we quantified the influence of temperature and light on larval survival, development, and elemental (carbon and nitrogen) body composition. Constant darkness resulted in longer developmental time as compared with daily light photoperiod (6-16 light hours). Larvae reared under constant darkness showed also reduced dry mass, carbon and nitrogen content, and C:N ratio. We also found carry-over effects of light conditions: constant darkness experienced during the zoeal stage led to increased developmental time in the megalopa stage. Temperature and light showed additive effects. We optimized the larval culture of M. brachydactyla requiring around 14 days from hatch to first juvenile by keeping cultures under 21 ± 1°C and light sources simulating the daily light cycle.

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“…4.2–42 µmoles m ˗2 s ˗1 ). Similar situation was observed in U. cordatus in the range from 210 to 710 lx (Cottens et al, ).…”

Section: Discussionsupporting

confidence: 83%

Section: Discussionmentioning

confidence: 91%

Influence of temperature and light regime on the larval development of the common spider crab Maja brachydactyla Balss , 1922 (Brachyura: Majidae)

et al. 2018

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“…Su situación es similar a la de U. cordatus en Brasil, el cual también redujo dramáticamente su población 5,17 por lo cual a partir de 2001 se inició su repoblamiento liberando larvas cultivadas al medio natural 6,9 . Sin embargo, este esfuerzo se realizó de manera inadecuada, sin haber estudiado la diversidad genética o la estructura genética poblacional de este cangrejo, por lo que posteriormente tuvo que hacerse para mejorar las estrategias de redoblamiento 16 .…”

Section: Introductionunclassified

Diversidad genética y estructura poblacional del cangrejo del manglar (Ucides occidentalis) en Tumbes, Perú

et al. 2020

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<p>El manglar es uno de los ecosistemas costeros más deteriorado a nivel mundial. En el presente caso, su funcionamiento ecológico depende en parte de la actividad de la especie clave: Ucides occidentalis. Este cangrejo ha sido sobreexplotado en los manglares del Perú. La fuerte reducción de su población (hasta 35,8% en 11 años) puede hacer necesario cultivar larvas de este cangrejo para repoblar los manglares. Sin embargo un adecuado repoblamiento requiere conocer su diversidad genética y estructura genética poblacional. Es por ello que en esta investigación se propuso determinar estos aspectos de U. occidentalis en el manglar de Tumbes, Perú. Un total de 56 ejemplares de U. occidentalis fueron colectados, de los cuales se obtuvieron 42 secuencias nucleótidas de un fragmento del gen COI. Los resultados indicaron un alto nivel de diversidad genética (evaluada a través del número de haplotipos: 30, frecuencia del haplotipo más frecuente: 14,29%, diversidad de haplotipos: 0,9721; promedio de diferencias en nucleótidos: 4,396 y diversidad nucleótida: 0,00810), así como una baja estructura genética poblacional evaluada mediante AMOVA (variabilidad genética entre poblaciones: 4%).</p>

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Effect of diet during larval development of Menippe nodifrons Stimpson, 1859 and Callinectes danae Smith, 1869

2020

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Cultivo de larvas de Ucides cordatus (LINNAEU, 1763) sob diferentes intensidades luminosas

Cited by 5 publications

References 15 publications

Influence of temperature and light regime on the larval development of the common spider crab Maja brachydactyla Balss , 1922 (Brachyura: Majidae)

Influence of temperature and light regime on the larval development of the common spider crab Maja brachydactyla Balss , 1922 (Brachyura: Majidae)

Diversidad genética y estructura poblacional del cangrejo del manglar (Ucides occidentalis) en Tumbes, Perú

Effect of diet during larval development of Menippe nodifrons Stimpson, 1859 and Callinectes danae Smith, 1869

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