Malaysian Prawns, Macrobrachium rosenbergii, Trinidad’s Invasive Alien; Biological Indicator or Aquaculture Species?

Ryan S. Mohammed, Carol Ramjohn, Rakesh Bhukal

Abstract


An update of the distribution of Macrobrachium rosenbergii indicates a distribution within ten rivers, in comparison to two rivers as previously documented. These rivers have higher dissolved oxygen concentrations in comparison to those where they have not been collected. With this in mind it is proposed that this species could possibly be regarded as a biological indicator species in Trinidad. They have been found in low densities and it is presumed not to be an ecological threat to native species of aquatic fauna particularly other Macrobrachium species.

Key words: Malaysian prawns, Macrobrachium, rosenbergii, alien invasive, biological indicator, aquaculture.


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