Fecundidad, volumen del huevo y rendimiento reproductivo de cinco especies de porcelánidos intermareales del norte de Chile (Decapoda, Porcellanidae)

Hernáez, Patricio; Palma, Sergio

doi:10.4067/s0717-71782003000200004

Cited by 35 publications

(45 citation statements)

References 23 publications

(27 reference statements)

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“…This value is slightly lower than that reported for C. tyrrhena (19.6%, Thessalou and Kiortsis 1997), but in the range of RO values (3-22%) described for brachyuran crabs (Hines 1991;Brante et al 2004) and higher than those published for anomurans (3-10%; Lardies and Wehrtmann 1996;Hernáez and Palma 2003). Additional RO data for thalassinidean shrimps are needed to test whether the species' cryptic life may allow for a higher energy allocation to reproduction.…”

Section: Discussioncontrasting

confidence: 42%

“…Hines 1991;Corey and Reid 1991;Hernáez and Palma 2003). According to Somers (1991), an isometric relation is indicated by values for b near to 3.…”

Section: Data Analysesmentioning

confidence: 99%

“…Although this value varies among species and even within the same species (Wehrtmann and Kattner 1998), it is assumed that many female decapods devote around 10% of their body weight to the production of eggs (Hines 1982(Hines , 1991Lardies and Wehrtmann 1996;Hernáez and Palma 2003;Brante et al 2004). The RO in unknown for the majority of thalassinidean shrimps, particularly for those species inhabiting the southeast Pacific coast.…”

Section: Introductionmentioning

confidence: 99%

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Egg production of the burrowing shrimp Callichirus seilacheri (Bott 1955) (Decapoda, Callianassidae) in northern Chile

2008

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The thalassinidean shrimp Callichirus seilacheri is a common species in the intertidal zone of the South American Pacific coast. However, our knowledge of its reproductive ecology is rather limited. The present study was carried out between January and December 2003 at Las Machas, northern Chile. Although ovigerous females were encountered almost throughout the study period, they were particularly abundant between May and September when water temperatures were lowest and sediment coverage of the burrow entrances was highest. Females of C. seilacheri produced numerous (17,450 ± 3,796 eggs) and small (0.884 ± 0.080 mm; 0.262 ± 0.054 mm 3 ) eggs when compared to other thalassinidean shrimps for which such information is available. Fecundity was positively correlated with female size; however, correlations were allometric, which might be related to the elasticity of the abdomen. Egg volume increased by 41.2% during embryogenesis, and egg loss during the incubation period was on average 8%. Females inverted on average 14.9% of their dry weight into egg production.

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Section: Discussioncontrasting

confidence: 42%

“…Hines 1991;Corey and Reid 1991;Hernáez and Palma 2003). According to Somers (1991), an isometric relation is indicated by values for b near to 3.…”

Section: Data Analysesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Egg production of the burrowing shrimp Callichirus seilacheri (Bott 1955) (Decapoda, Callianassidae) in northern Chile

2008

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“…Las hembras de P. laevidactylus tuvieron una asignación reproductiva de 5% del peso seco. Este valor estuvo acorde a otros hallados para cangrejos porcelánidos como en los estudios de Lardies & Wehrtmann (1996) y Hernáez & Palma (2003) donde se registraron valores que oscilaron entre 3.7 y 7.4% en 6 especies de las costas chilenas, aunque también alcanzaron valores del 10 % en Petrolisthes granulosus (López et al, 1997). Los cangrejos porcelánidos tienen valores de asignación reproductiva por debajo del 10%.…”

Section: Variablesunclassified

“…Los cangrejos porcelánidos tienen valores de asignación reproductiva por debajo del 10%. La asignación reproductiva no tuvo una relación significativa con la talla de la hembra, similar a lo encontrado en otros cangrejos porcelánidos y braquiuros (Luppi et al, 1997;Hernáez & Palma, 2003).…”

Section: Variablesunclassified

Hábitat y historia de vida de Pachychelles laevidactylus (Crustacea, Anomura, Porcellanidae) en el intermareal rocoso de Mar del Plata, Argentina

Camiolo

Luppi

2016

Iheringia, Sér. Zool.

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RESUMEN Se analizó la estructura del hábitat, el crecimiento relativo, la heteroquelia, la estructura poblacional, la madurez morfométrica y la fecundidad de Pachycheles laevidactylus Ortmann, 1892, durante Abril, Mayo y Junio del 2005, en sustratos naturales de Mar del Plata, Argentina (38°02'S, 57°31'W). La cobertura algal, la exposición al oleaje y el tiempo de inmersión varió de manera significativa entre estratos y entre meses. La morfometría de las quelas no manifestó diferencias entre sexos. Las hembras mostraron el abdomen más grande que los machos. Si bien existió la heteroquelia, no se detectó lateralidad. Las tallas (ancho de caparazón) estuvieron comprendidas entre 0.67 mm a 9.3 mm para los machos, y entre 1.07 mm a 10.65 mm, para las hembras. La densidad de organismos varió entre meses y entre los estratos. La estructura poblacional, para el periodo de estudio, se explicó en función de la estructura del hábitat. La madurez morfométrica de las hembras fue registrada a los 4.38 mm de ancho de caparazón. El número de huevos se correlacionó positivamente con la talla de las hembras ovígeras con un mínimo de 2 huevos y un máximo de 160, pero esa relación dependió del avance en el desarrollo de los embriones.

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Reproductive plasticity in Petrolisthes armatus (Anomura, Porcellanidae): a comparison between a Pacific and an Atlantic population

et al. 2011

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The porcellanid crab Petrolisthes armatus, with a known geographic distribution covering a wide range of latitudes, was selected to conduct a comparative study on egg production and reproductive output between two populations from Pacific and Atlantic coasts. Ovigerous females were collected between September and November 2005 in Punta Morales, Pacific coast of Costa Rica (n = 137) and from March 2005 to July 2006 in Araçá region, São Paulo, Brazil (n = 46). The mean size of females was statistically different between both populations with larger females from Brazil than Costa Rica (7.9 ± 1.31 and 6.6 ± 0.95 mm CW, respectively). Likewise, egg production was significantly different in both populations and started in Pacific Costa Rica at a smaller female size than in Brazil. Specimens from Pacific Costa Rica produced roughly three times more eggs than equally sized females from Brazil, while newly extruded embryos were larger in Brazil than in Costa Rica (0.045 and 0.039 mm 3 , respectively). Egg volume increased during embryogenesis by 112.8 and 164.5% in Costa Rican and Brazilian populations, respectively. The egg water content increased steadily in both populations; however, eggs produced in Brazil contained always more water than those from the same developmental stage in Costa Rica. Average reproductive output (based on dry weight) was substantially lower in Brazil (0.031) than in Costa Rica (0.065). Our results confirm an impressive intraspecific plasticity of reproductive features in an intertidal decapod. The observed phenotypical variability might be related to local environmental conditions as well as to the location of the studied population concerning its geographic range of distribution.

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Fecundidad, volumen del huevo y rendimiento reproductivo de cinco especies de porcelánidos intermareales del norte de Chile (Decapoda, Porcellanidae)

Abstract: Los crustáceos decápodos han desarrollado diferentes estrategias de supervivencia que han permitido su éxito en una gran variedad de hábitats. Esta característica hace que estos organismos sean bastan

Cited by 35 publications

References 23 publications

Egg production of the burrowing shrimp Callichirus seilacheri (Bott 1955) (Decapoda, Callianassidae) in northern Chile

Egg production of the burrowing shrimp Callichirus seilacheri (Bott 1955) (Decapoda, Callianassidae) in northern Chile

Hábitat y historia de vida de Pachychelles laevidactylus (Crustacea, Anomura, Porcellanidae) en el intermareal rocoso de Mar del Plata, Argentina

Reproductive plasticity in Petrolisthes armatus (Anomura, Porcellanidae): a comparison between a Pacific and an Atlantic population

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