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Bruno W Giraldes1, Thais P Macedo2, Manoela C Brandão2,3

  • 1Environmental Science Centre, Qatar University, Doha, Qatar.

Peerj
|September 12, 2018
PubMed
Summary
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A new shrimp species, Lysmata arvoredensis, was discovered off Brazil's coast. This finding expands the known diversity of the Lysmata genus in the region and provides identification keys for future research.

Area of Science:

  • Marine Biology
  • Taxonomy
  • Zoology

Background:

  • The genus Lysmata comprises commercially important shrimp species.
  • Biodiversity assessments are crucial for understanding marine ecosystems.

Purpose of the Study:

  • To describe a new species of Lysmata, Lysmata arvoredensis sp. nov., from the south coast of Brazil.
  • To provide identification keys for Lysmata species in the southwestern Atlantic Ocean.

Main Methods:

  • Morphological analysis of the new species, including detailed examination of appendages and rostrum.
  • Molecular phylogenetic analysis to determine the species' evolutionary relationships.
  • Comparison with known Lysmata species for differentiation.

Main Results:

Keywords:
DecapodMaare projectMarine biodiversityPeppermint shrimpPhylogeny and taxonomyREBIO do ArvoredoSanta Catarina

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  • Lysmata arvoredensis sp. nov. is described, distinguished by specific morphological characteristics (e.g., antennular flagellum, rostrum dentition, pereiopod segmentation, color pattern).
  • This represents the ninth Lysmata species recorded in Brazil and the fourth in the REBIO Arvoredo region.
  • Phylogenetic analysis places L. arvoredensis sp. nov. within the Neotropical and Cleaner clades.

Conclusions:

  • The discovery of Lysmata arvoredensis sp. nov. highlights the unexplored biodiversity of Brazilian temperate waters.
  • The provided identification keys will aid in future ecological and taxonomic studies of Lysmata in the southwestern Atlantic.