2022 Early Hearing Detection & Intervention Virtual Conference

March 13 - 15, 2022

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6/08/2017  |   12:15 PM - 12:30 PM   |  DISTRIBUTION OF CRYPTIC SPECIES AS A SPECIFIC RESPONSE TO ENVIRONMENTAL EFFECTS AT LARGE SCALE: THE FRESHWATER SHRIMP CARIDINA INDISTINCT CALMAN, 1926 IN THE SOUTHEAST QUEENSLAND.   |  306C

DISTRIBUTION OF CRYPTIC SPECIES AS A SPECIFIC RESPONSE TO ENVIRONMENTAL EFFECTS AT LARGE SCALE: THE FRESHWATER SHRIMP CARIDINA INDISTINCT CALMAN, 1926 IN THE SOUTHEAST QUEENSLAND.

In this study, we focused specifically on freshwater shrimp belonging to the Caridina indistincta complex in southeast Qld. Two hypotheses have been suggested 1) as the taxa have different distributions, their tolerance to water quality and elevation parameters also differ, 2) as the different cryptic species of Caridina indistincta rarely exist sympatrically, their responses to environmental variables and preference to the specific habitats will differ between species. Molecular work has been conducted for147 shrimp specimens from 47 sites in 15 Catchments across southeast Qld, by sequencing a fragment of the mitochondrial cytochrome c oxidase subunit I gene (COI). The molecular approach identified three cryptic species of Caridina indistincta (Sp. A, B & D) and showed that these cryptic species seldom exist together, with only three sites containing more than one species. Based on a multivariate analysis of water quality variables at each site, Sp. A could be differentiated from Sp. B and Sp. D, but Sp. B and Sp. D overlapped substantially.

  • C18 Biodiversity
  • C30 Molecular Ecology
  • C03 Invertebrates

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Presenters/Authors

amaal yasser (), Griffith University, a.yasser@griffithuni.edu.au;


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