Produção Nacional
Crescimento de Aegla platensis Schmitt em ambiente natural (Crustacea, Decapoda, Aeglidae)
2000; Sociedade Brasileira de Zoologia; Volume: 17; Issue: 1 Linguagem: Inglês
10.1590/s0101-81752000000100006
ISSN1806-969X
AutoresAlessandra Angélica de Pádua Bueno, Georgina Bond‐Buckup, Ludwig Buckup,
Tópico(s)Fish Biology and Ecology Studies
ResumoThe growth of Aegla platensis Schmitt (Crustacea, Decapoda, Aeglidae) in natural habitat.The crustaceans ofthe genus Aegla Leach, 1820 are found in streams, rivers and lakes from Franca, São Paulo, Brazil (20 0 60'S, 47°40'W), to Ilha Madre de Dios, Chile (50 0 01 ' 1O"S, 75°18'45"W) in South America.The growth and cheliped asymmetry of Aegla platensis Schmitt, 1942 were analyzed.The animais were col!ected from July 1997 to September 1998 at Arroio do Mineiro, Taquara, Rio Grande do Sul, Brazil (29°46' S, 50 0 53 ' W).The sex, length, width ofthe carapace and the total weight ofthe crab were registered.And after that, the animais were returned to the stream.ln the statistical analysis von BertalanffY's model was used.The growth curves in length (mm) of males and females are described, respectively, ~ the following equations: L, = 17.39 [I -e -0.0041 (1+ 39.13») and LI = 19.12 [I _ e -o.33(1 + 50.38») .The equations that describe lhe ~rowth in weight (g) of males and femates, reslsectively, are: Wt = 2.48 [I -e -0.004 (I + 39.13») 3.04 and Wt = 3.38 [I _ e ~.OO33(1 + 50.8»)3 .05 .Among 36,5% males had larger left chelae and 52% of females had chelae ofthe sarne size.
Referência(s)