%0 Journal Article
%9 ACL : Articles dans des revues avec comité de lecture non répertoriées par l'AERES
%A Odinetz Collart, Olga
%T Aspectos ecologicos do camarao Macrobrachium amazonicum (Heller, 1862) no baixo Tocantins (Pa-Brazil)
%D 1988
%L fdi:41100
%G POR
%J Memoria de la Sociedad de Ciencias Naturales La Salle
%@ 0037-8518
%K CREVETTE ; STRUCTURE DU PEUPLEMENT ; ALLOMETRIE ; DYNAMIQUE DE POPULATION ; MIGRATION ; REPRODUCTION ; VARIATION SAISONNIERE ; PARASITISME
%K RELATION ESPECE ENVIRONNEMENT
%K BRESIL NORTE
%K AMAZONIE ; PARA BRESIL ; TOCANTINS COURS D'EAU
%N suppl. 1988
%P 341-353
%U https://www.documentation.ird.fr/hor/fdi:41100
%> https://horizon.documentation.ird.fr/exl-doc/pleins_textes/pleins_textes_6/b_fdi_35-36/41100.pdf
%V 158
%W Horizon (IRD)
%X The ecology of the freshwater prawn #Macrobrachium amazonicum$ has been studied in the Lower Tocantins river in 1985-86 from Cameta to the Tucurui hydroelectric dam and in the reservoir. The population of the river below the dam exhibited a mean total length of 60 mm and a maximum of 132 mm. The mean lengths displayed a seasonal oscillation correlated with adults migration and reproduction from March to July and recruitment from September to February. The global female prawns were parasited by the isopod #Probopyrus$ in the lower part of the river. The population of #M. amazonicum$ that colonized the reservoir showed different biological characteristics from that below the dam : smaller mean and maximum lengths, earlier sexual maturity, strongly female-biaised sex-ratio, reproduction in September and recruitment from January to March. No #P. bithynis$ isopod was collected in this area. (Résumé d'auteur)
%$ 036EAUCON03 ; 040PECHE03