Cookies Policy

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

Strategie De Reproduction De Macrobrachium Amazonicum En Amazonie Centrale (Decapoda, Caridea, Palaemonidae)

No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.

Brill’s MyBook program is exclusively available on BrillOnline Books and Journals. Students and scholars affiliated with an institution that has purchased a Brill E-Book on the BrillOnline platform automatically have access to the MyBook option for the title(s) acquired by the Library. Brill MyBook is a print-on-demand paperback copy which is sold at a favorably uniform low price.

Access this article

+ Tax (if applicable)
Add to Favorites
You must be logged in to use this functionality

image of Crustaceana

The reproduction strategy of the Palaemonid shrimp, Macrobrachium arrtazorticum, has been studied on Careiro Island in a floodplain lake in Central Amazonia. Ovigerous females have been observed all year round. However, three periods of the hydrological cycle were significantly more favourable to gonad ripening: the middle of the rising and of the falling of the water level, as well as the low level. This suggests the direct effect of two factors: the current velocity and the phytoplancton production. At the population level, the maximum reproduction intensity has been observed during low water, and during rising water. This strategy increases the survival of planctonic larvae during the highest phytoplancton production period, and reduces the intraspecific competition, increasing the larval dispersal in the floodplain. In the lake, the percentage of ovigerous females was always higher regardless of size class of the adult prawns and of season, than in the channels or in the river, suggesting that the lacustrine environment is the more favourable to M. amazonicum reproduction. In eastern Amazonia, M. amazonicum shows a typical reproduction pattern of littoral Palaemonids: mass spawning occurs during the falling water, increasing the larval dispersion towards the estuary. The reproduction flexibility of M. amazonicum explains its success in colonizing a variety of environments in a wide geographical range in South America.

Affiliations: 1: Instituto Nacional de Pesquisas da Amazônia (INPA), C.P. 478, 69.000 Manaus, Amazonia, Brésil


Full text loading...


Data & Media loading...

Article metrics loading...



Can't access your account?
  • Tools

  • Add to Favorites
  • Printable version
  • Email this page
  • Subscribe to ToC alert
  • Get permissions
  • Recommend to your library

    You must fill out fields marked with: *

    Librarian details
    Your details
    Why are you recommending this title?
    Select reason:
    Crustaceana — Recommend this title to your library
  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation