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.

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Identification of morphotypes All measurements were based in the method of Kuris et al.

Population structure of pond-raised Macrobrachium amazonicum with different stocking and harvesting strategies. So the difference in size of macrobeachium could be greater.

Journal of Crustacean Biology, vol. In Brazil, studies with native freshwater prawn species were discontinued due to great importance of Macrobrachium rosenbergii.

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. Our results indicated that the natural male population of M.

In the present study, biological traits related to growth maximum body size, fresh weight, morphometric relationships and reproduction sex ratio; occurrence of male morphotypes; minimum sexable size; minimum size of ovigerous females; fecundity; egg sizewere studied in M amazonicum collected from a pond culture macrobrachiu two natural freshwater habitats Rio Miranda; Lagoa Baiazinha in the Pantanal of Mato Grosso do Sul, Brazil. The prawns were sexed macrobrachiun identified by the presence or absence of the appendix masculina on the second pair of pleopods Valenti, CL by the K-means clustering analysis.


Macrobrachium amazonicum

Carapace length ranged from 4. The DNA barcoding and the caveats with respect to its application to some species of Palaemonidae Crustacea, Decapoda. Prawns of GC2 morphotype macrorachium a CL ranging from According to Odinetz-Collart and Odinetz-Collart and Moreiraprawns caught in flowing water of large rivers grew to larger sizes than amazonicmu prawns collected in the lentic water of lakes and reservoirs that can reach sexual maturity at smaller sizes.

Spine angle for the four groups. The presence of morphotypes in populations is an extremely important factor for reproduction because the dominant males are almost the only prawns that succeed in reproducing Moraes-Riodades and Valenti, When reproductive and morphometric traits are compared amazoncum literature data from estuarine and inland populations living in the Amazon and Orinoco plains, shrimps from the Pantanal show conspicuous peculiarities differing from other populations: The prawns in this study were collected according to Brazilian laws concerning macrbrachium of wild animals.

The highest number of eggs observed individually per hatching was 2, GC1 and GC1 vs.

IUCN Red List of Threatened Species

Morphotypic differentiation of amzonicum Malaysian giantprawns, Macrobrachium rosenbergii. In the present study this pattern was also observed. In the analysis of average fertility N per length classes, the lowest and highest number of larvae observed was and 1, respectively. Acta Limnologica Brasiliensia, vol. Research and Management, vol.


Laboratory life history of the palaemonid shrimp Macrobrachium amazonicum Heller, Decapoda, Palaemonidae.

In this work, the maximum number of larvae observed per hatching for females kept in laboratory was 2, On the biology, origin, and radiation of freshwater-invading shrimp. La peche crevettiere de Macrobrachium amazonicum Palaemonidae dansleBas-Tocantins apreslafermeturedubarrage de Tucurui Bresil. In general, chelipeds had few spines and segments were translucent. Diversity, distribution, and habitats of the macro-invertebrate fauna of the Rio Paraguay and Rio Apa, Paraguay, with emphasis on decapod crustaceans According to this author, in these inland populations, female downstream migrations or a passive larval export to estuarine waters must be considered as biologically impossible, which raises the question if coastal, estuarine, and hololimnetic inland populations assigned to M.

Right cheliped length RCL ranged from 9. Acta Biologica Venezuelica, vol. Four groups of males, differing in color,spination pattern and body relationships, were identified.