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. 2019 Feb 12:7:e6063.
doi: 10.7717/peerj.6063. eCollection 2019.

Morphological identification and molecular confirmation of the deep-sea blue and red shrimp Aristeus antennatus larvae

Marta Carreton  1 , Joan B Company  1 , Laia Planella  2 , Sandra Heras  2 , José-Luis García-Marín  2 , Melania Agulló  2 , Morane Clavel-Henry  1 , Guiomar Rotllant  1 , Antonina Dos Santos  3 , María Inés Roldán  2
Affiliations

Morphological identification and molecular confirmation of the deep-sea blue and red shrimp Aristeus antennatus larvae

Marta Carreton et al. PeerJ. .

Abstract

The early life stages of the blue and red shrimp Aristeus antennatus (Decapoda: Dendrobranchiata: Penaeoidea: Aristeidae) were described by Heldt in 1955 based on plankton samples, larval rearing and assumptions of species habitat. Even with adequate keys, identification of its first larval stages remained a difficult task due to the lack of specific morphological characters which would differentiate them from other Penaeoidea species. Larvae of Aristeus antennatus were collected in the continental slope off the Spanish Mediterranean coast in August 2016 with a neuston net and preserved in ethanol 96%. DNA from the larvae was extracted and the molecular markers Cytochrome Oxidase I and 16S rDNA were sequenced and compared to that of adults with the objective of confirming the previous morphological description. Then, we present additional information to the morphological description of Aristeus antennatus larval stages through scanning electron microscopy and molecular analysis. This represents the first documented occurrence of Aristeus antennatus larvae off the Catalan coast and sets the grounds for further work on larval ecology and population connectivity of the species, which is an important contribution to a more sustainable fishery.

Keywords: Aristeus antennatus; Blue and red shrimp; Larvae; Molecular identification; SEM.

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Conflict of interest statement

Antonina dos Santos is an Academic Editor for PeerJ. The rest of the authors declare that they have no competing interests.

Figures

Figure 1
Figure 1. Stations where larvae were selected.
Red dots: summer sampling. Blue dots: winter sampling. Bathymetry is shown every 200 m.
Figure 2
Figure 2. General view (A) and detail of a third maxilliped (B) of an Aristeus antennatus protozoea I.
Figure 3
Figure 3. General view (A) and detail of a birramous third maxilliped (B) of a Gennadas elegans protozea I.
See this image and copyright information in PMC

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