Macrobrachium amazonicum (Heller, ). AphiaID. (urn:lsid: :taxname). Classification. Biota; Animalia. Pupil of a Macrobrachium amazonicum (freshwater shrimp). Alex H. Griman. Affiliation: Alex Kawazaki Photography São Paulo, Brazil. Technique. Macrobrachium amazonicum — Overview. Amazon River Media. Image of Macrobrachium amazonicum. Macrobrachium amazonicum Unreviewed.

Author: Milrajas Gokazahn
Country: Kenya
Language: English (Spanish)
Genre: Relationship
Published (Last): 15 December 2005
Pages: 99
PDF File Size: 3.3 Mb
ePub File Size: 15.86 Mb
ISBN: 176-1-73310-544-4
Downloads: 46808
Price: Free* [*Free Regsitration Required]
Uploader: Felmaran

Therefore, our hypothesis amazomicum that the high degree of plasticity in morphological characters among populations throughout the geographical distribution of M. Current status and prospects of farming the giant river prawn Macrobrachium rosenbergii De Man and the Amazon river prawn Macrobrachium amazonicum Heller in Brazil. TC prawns presented a CL ranging from 8.

Fecundity and fertility of Macrobrachium amazonicum (Crustacea, Palaemonidae).

This population was compared with other continental populations, including a population from the dam itself, collected in a previous study. Culture of the Amazon River Prawn Macrobrachium amazonicum. However, cheliped length was always greater in GC2. With respect to average fecundity F by length classes, the lowest and highest number of eggs observed was and 1, respectively.

Biology Ocurrence of male morphotypes of Macrobrachium amazonicum Caridea, Palaemonidae in a population with an entirely freshwater life cycle.

All measurements were based in the method of Kuris et al. In total, shrimps were examined males; females, of these ovigerous. After the identification of the morphotypes by the K-means clustering analysis, a linear regression analysis was conducted using the data from the juveniles and from each morphotype.

Each male specimen was measured with respect to seven body dimensions as follows: Journal of Crustacean Biology, vol. In Brazil, the species is intensively exploited by artisanal fisheries; it is also consumed as human food, most commonly in Northeastern Brazil and in the Amazon region, by all social classes Moraes-Valenti and Valenti, ; Marques and Moraes-Valenti, Male population structure of the Amazon River prawn Macrobrachium amazonicum in a natural environment.


Fecundity and fertility of Macrobrachium amazonicum (Crustacea, Palaemonidae).

First record of Macrobrachium amazonicum Decapoda, Palaemonidae in Argentina. Japanese Journal of Ecology, vol. The presence of morphotypes in populations is an extremely important factor for reproduction because the dominant macrobrzchium are almost the only prawns that succeed in reproducing Moraes-Riodades and Valenti, Distinct morphotypes described for this species Moraes-Riodades and Valenti, have been recorded only for coastal populations from culture ponds Papa et al.

Males appear to have a more slender body shape than females, reaching thus lower weight at equal TL. The authors are indebted to Mr.

WoRMS – World Register of Marine Species – Macrobrachium amazonicum (Heller, )

These differences seem to be closely related to ecological characteristics of the environments inhabited by these populations. This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

The DNA barcoding and the caveats with respect to its application to some species of Palaemonidae Crustacea, Decapoda. According to the allometric coefficients obtained in the morphometric analysis, morphotypes CC, GC1 and GC2 have very similar body size relationships between carapace and propodus Figure 3 and Table 3. The bait used for this sample was crushed corn macrobrahcium viscera of fish, similar to that used by most sport fishermen.


Our results indicated that the natural male population of M. Diversity, distribution, and habitats of the macro-invertebrate fauna of the Rio Paraguay and Rio Apa, Macrbrachium, with emphasis on decapod crustaceans The four male morphotypes proposed for the species were found using morphological and morphometric analyses.

Therefore, it is necessary to continue investigations about our species, in order to develop technology adequate to our reality and in a future allow prawn farmers to culture other species.

In the analysis of average fertility N per length classes, the lowest and highest number of larvae observed was and 1, respectively. Discussion Morphologic and morphometric analysis confirmed the division of male Macrobrachium amazonicum into distinct groups.

Allan Hancock Foundations Publications. Prawns of GC2 morphotype presented macrobrrachium CL ranging from Morphologic and morphometric analysis confirmed the division of male Macrobrachium amazonicum into distinct groups.

Revista Brasileira de Zoologia, vol. Different biological characteristics were found between the populations studied. In summary, our data show biologically relevant differences in life-history traits of shrimps from the Pantanal compared to M. The largest carapace length of male specimens of M.