Crescimento de Aegla longirostri Bond-Buckup &amp; Buckup (Crustacea, Anomura, Aeglidae)

Silva-Castiglioni, Daiana da; Barcelos, Daniela Ferreira; Santos, Sandro

doi:10.1590/s0101-81752006000200015

Cited by 19 publications

(10 citation statements)

References 16 publications

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“…schmitti, species from low latitude locations which become functionally mature at 19-21 months of age (Bueno and Shimizu, 2008;Rocha et al, 2010;Cohen et al, 2011;Chiquetto-Machado et al, 2016). As expected from their faster individual growth, species from higher latitude locations attain functional maturity earlier in their respective life cycle, as reported for A. platensis (12.6-15.6 months) and Aegla longirostri Bond- Buckup and Buckup, 1994 (8 and 12 months) Colpo et al, 2005;Silva-Castiglioni et al, 2006).…”

Section: (In Santosmentioning

confidence: 75%

Allometric growth, sexual maturity and reproductive cycle of Aegla castro (Decapoda: Anomura: Aeglidae) from Itatinga, state of São Paulo, southeastern Brazil

et al. 2016

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Section: (In Santosmentioning

confidence: 75%

Allometric growth, sexual maturity and reproductive cycle of Aegla castro (Decapoda: Anomura: Aeglidae) from Itatinga, state of São Paulo, southeastern Brazil

et al. 2016

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“…Para os crustáceos, o estudo da curva de crescimento pode ser feito por meio de cultivo da espécie ou pelo acompanhamento das coortes etárias resultantes da distribuição de freqüências dos organismos em função do tempo (FONTELES-FILHO 1987). O modelo matemático proposto por VON BERTALANFFY (1938) tem se mostrado eficaz no ajuste dos pontos empíricos e tem sido usado com sucesso no cálculo do crescimento de diversos crustáceos (D'INCAO et al 1993, FONTOURA & BUCKUP 1989, SAMPAIO & VALENTI 1996, BUENO et al 2000, NORO & BUCKUP 2003, CASTIGLIONI et al 2004, DUMONT & D'INCAO 2004, PINHEIRO & TADDEI 2005, SILVA-CASTIGLIONI et al 2006, BOOS JR et al 2006, FERREIRA & D'INCAO 2008.…”

unclassified

O crescimento de Parastacus defossus (Crustacea: Decapoda: Parastacidae)

Noro¹,

Buckup²

2009

Zoologia (Curitiba, Impr.)

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ABSTRACT. -0,0026 (t+44,86) ] and for the juveniles cultivated in laboratory: Lt = 19,0048 (t+37,14) ]. It was shown that, under laboratory conditions, the growth was slower than in the field. By comparing the data of P. defossus with those of P. brasiliensis (von Martens, 1869), it was possible to verify a slower growth, both in laboratory as under field conditions. The longevity of the studied species (1198.7 days or 40 months) also showed to be lower when compared to P. brasiliensis.

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“…Other authors (schmitt, 1942;ringuelet, 1948;bAhemonde & lóPez, 1961;rodrigues & hebling, 1978;JArA, 1980;bond-bucKuP & BucKuP, 1994;sWiechAyoub & mAsunAri, 2001;giri & collins, 2004;boss et al, 2006;silVA-cAstiglioni et al, 2006;giri & loy, 2008;gonçAlVes et al, 2009;bArríA et al, 2011) have agreed that males are larger than females. According to silVA-cAstiglioni et al (2006), the larger size of males is most likely because they invest their energy primarily in somatic growth. Females are smaller than males because they invest most of their energy in reproduction (gonad maturation and egg production) at the expense of body growth.…”

Section: Discussionmentioning

confidence: 99%

“…However, the growth rate for females was slightly higher in other species, such as A. paulensis (cohen et al, 2011). Conversely, in other species, including A. platensis, A. jarai, A. longirostri, and A. itacolomiensis, growth was more intense in males than in females (bueno et al, 2000;boss et al, 2006;silVA-cAstiglioni et al, 2006;gonçAlVes et al, 2009). All of these observations were obtained using a classical methodology, and it is possible that morphometric geometry may cause us to consider growth as a more integral process and not as a one-dimensional event.…”

Section: Discussionmentioning

confidence: 99%

“…The majority of these studies used modal analysis rather than focusing on the individual growth of each organism (VAz-ferreirA et al, 1945;bAhAmonde & lóPez, 1961;lóPez, 1965;bueno et al, 2000;sWiech-Ayoub & mAsunAri, 2001;noro & bucKuP, 2003;boss et al, 2006;silVA-cAstiglioni et al, 2006;gonçAlVes et al, 2009;treVisAn & sAntos, 2011). While these studies can provide relative growth rates for portions of the population (by sex or maturity), they cannot provide size increments or the intermoult period for individuals (steVens, 2012).…”

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confidence: 99%

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Shape and size variations of Aegla uruguayana (Anomura, Aeglidae) under laboratory conditions: A geometric morphometric approach to the growth

Diawol

Giri

Collins

2015

Iheringia, Sér. Zool.

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ABSTRACT.Crustacean growth studies typically use modal analysis rather than focusing on the growth of individuals. In the present work, we use geometric morphometrics to determine how organism shape and size varies during the life of the freshwater crab, Aegla uruguayana Schmitt, 1942. A total of 66 individuals from diverse life cycle stages were examined daily and each exuvia was recorded. Digital images of the dorsal region of the cephalothorax were obtained for each exuvia and were subsequently used to record landmark configurations. Moult increment and intermoult period were estimated for each crab. Differences in shape between crabs of different sizes (allometry) and sexes (sexual dimorphism; SD) were observed. Allometry was registered among specimens; however, SD was not statistically significant between crabs of a given size. The intermoult period increased as size increased, but the moult frequency was similar between the sexes. Regarding ontogeny, juveniles had short and blunt rostrum, robust forehead region, and narrow cephalothorax. Unlike juveniles crabs, adults presented a well-defined anterior and posterior cephalothorax region. The rostrum was long and stylised and the forehead narrow. Geometric morphometric methods were highly effective for the analysis of aeglid-individual-growth and avoided excessive handling of individuals through exuvia analysis. KEYWORDS.Crustacea, cephalothorax, ontogeny, intermoult, morphometrics. RESUMEN. Variaciones de forma y tamaño deAegla uruguayana (Anomura, Aeglidae): Una aproximación desde la morfometría geométrica al crecimiento. Los estudios de crecimiento en crustáceos típicamente utilizan análisis modal en lugar de focalizarse en el crecimiento individual de los organismos. En el presente trabajo, utilizamos morfometría geométrica para determinar cómo varia la forma y el tamaño a lo largo de la vida del cangrejo de agua dulce, Aegla uruguayana Schmitt, 1942. Un total de 66 individuos, en diferentes etapas del ciclo de vida, se examinaron diariamente, registrándose la presencia de exuvias. Imágenes digitales de cada muda fueron obtenidas de la región dorsal del cefalotórax y se utilizaron para registrar las configuraciones de landmarks. El incremento por muda y el período de intermuda se estimaron para cada cangrejo. Diferencias de forma entre tamaños (alometría) y sexos (dimorfismo sexual; SD) se observaron. Se registró la presencia de alometría entre los especímenes; sin embargo, el SD no fue estadísticamente significativo respecto del tamaño. El período intermuda aumentó de manera directamente proporcional al tamaño, pero la frecuencia de muda fue similar entre los sexos. Durante la ontogenia, los juveniles presentaron rostro corto y romo, frente robusta, y ancho del cefalotórax estrecho. Los adultos presentaron la región anterior y posterior del cefalotórax bien definido en relación con los juveniles. El rostro fue largo y estilizado y la frente estrecha. Los métodos de morfometría geométrica fueron muy efectivos para el análisis del crecimiento individual e...

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Crescimento de Aegla longirostri Bond-Buckup & Buckup (Crustacea, Anomura, Aeglidae)

Cited by 19 publications

References 16 publications

Allometric growth, sexual maturity and reproductive cycle of Aegla castro (Decapoda: Anomura: Aeglidae) from Itatinga, state of São Paulo, southeastern Brazil

Allometric growth, sexual maturity and reproductive cycle of Aegla castro (Decapoda: Anomura: Aeglidae) from Itatinga, state of São Paulo, southeastern Brazil

O crescimento de Parastacus defossus (Crustacea: Decapoda: Parastacidae)

Shape and size variations of Aegla uruguayana (Anomura, Aeglidae) under laboratory conditions: A geometric morphometric approach to the growth

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