Morphology of the final stage phyllosoma larva of Scyllarus pygmaeus (Crustacea: Decapoda: Scyllaridae), identified by DNA analysis

Palero, Ferran; Guerao, Guillermo; Abelló, Pere

doi:10.1093/plankt/fbn012

Cited by 26 publications

(32 citation statements)

References 15 publications

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“…At this time and without the advantage of DNA analysis that has been used to identify other scyllarids (as per Palero et al, 2008Palero et al, , 2009Palero et al, , 2011, it is more parsimonious to conclude that the Torino museum specimen is S. latus, sampled at great depth, and that this depth explains why the nistos and early benthic forms of S. latus have been so difficult to find. Of course, all conclusions are preliminary as long as only one data point is available.…”

Section: Introduction and Specimen Descriptionmentioning

confidence: 99%

First record of an early benthic juvenile likely to be that of the Mediterranean slipper lobster, Scyllarides latus (Latreille, 1802)

Spanier¹,

Lavalli²

2013

Crustac

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To date no nisto and/or live juvenile of the Mediterranean slipper lobster. Scyllarides latus (Latreille, 1802), has been found despite intensive sampling efforts. In the early 1900s, a tiny preserved specimen, almost certainly of this species, with carapace length of 11.7 mm, sampled in Reggio Calabria, southern Italy, was captured and deposited in the Zoological Museum of Turin. This early scyllarid juvenile, likely a recent benthic recruit, varies somewhat from the adult form of the local Mediterranean species, S. latus, by having a carapace width that is greater than the carapace length and by having more prominent tubercles than adults. These same features also have been noted in nistos of a few other non-Mediterranean Scyllarides species, especially those of S. nodifer (Stimpson, 1866). Although the collection information for this specimen was incomplete, additional data on habitats of sub-adults of S. latus enable the construction of a hypothetical recruitment scenario. It is likely that 5. latus larvae drift large distances for many months in the pelagic before settling as nistos in deeper water where they are possibly more protected against predators and develop to small juveniles before returning to the shallower adult grounds as migrating larger juveniles or sub-adults.

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Section: Introduction and Specimen Descriptionmentioning

confidence: 99%

First record of an early benthic juvenile likely to be that of the Mediterranean slipper lobster, Scyllarides latus (Latreille, 1802)

Spanier¹,

Lavalli²

2013

Crustac

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“…Its shape closely resembles that of the phyllosomas stranded near Messina, and even the size is similar for two of them; nevertheless, since the final-stage phyllosoma instar of Scyllarus arctus has not been described yet, a specific comparison is not possible. The phyllosoma instars collected in 2003 and 2006 were at an earlier stage of development (and ipso facto smaller), and therefore the description of Palero et al [22] is not at all applicable; still, the depth at which they were caught lets to hypothesize that they also may belong to the species Scyllarus pygmaeus.…”

Section: Resultsmentioning

confidence: 98%

“…Palero et al [22] identified by molecular techniques a late-stage phyllosoma instar caught in deep water (>200 m) as Scyllarus pygmaeus. Its shape closely resembles that of the phyllosomas stranded near Messina, and even the size is similar for two of them; nevertheless, since the final-stage phyllosoma instar of Scyllarus arctus has not been described yet, a specific comparison is not possible.…”

Section: Resultsmentioning

confidence: 99%

Findings of Phyllosoma Larvae and Nistos of the Family Scyllaridae (Crustacea, Decapoda) in the Southern Mediterranean Sea

Pagliarino

Massi²,

Canali³

et al. 2013

TOMBJ

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Abstract:The rare findings of specimens in larval or post-larval stages (6 phyllosomas and 7 nistos/early juveniles) belonging to the family Scyllaridae are reported for the waters around Sicily. Some were stranded on different winter occasions near the Strait of Messina (north-eastern Sicily), while others were collected during experimental trawl surveys carried out in the Sicilian Channel, at depths up to 450 m. All phyllosoma instars were in advanced stages of development; however, the absence of complete morphological references on the larval characteristics of the family Scyllaridae, necessary for distinguishing the different genera (Scyllarus and Scyllarides, small or large slipper lobsters, or the extremely rare Acantharctus) and species inhabiting the Mediterranean, did not allow to attribute the phyllosomas to a specific taxon. On the contrary, apart from one nisto without apparent lobes (maybe belonging to the species Scyllarides latus), nistos/early juveniles could be classified at generic level on the basis of similarities with the morphology of adult antennae, as pertaining to the genus Scyllarus, but the characters of juveniles are in general ineffective to discriminate between Scyllarus arctus and Scyllarus pygmaeus (the only two known Central Mediterranean species); in fact, the small size and the depth at which they settled suggested that some may belong to the smaller, deeper species Scyllarus pygmaeus.

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“…Morphology of Polycheles typhlops larvae Accurate identification of marine larvae has traditionally required the rearing of larval stages in aquaria, but the development of species-specific markers (DNA barcoding) facilitates now the assignment of wild-caught planktonic larvae (Palero et al 2008;Marco-Herrero et al 2013). Matzen da Silva et al (2011) have recently shown that the standard DNA barcoding COI gene region resolves relationships among decapod crustaceans.…”

Section: Discussionmentioning

confidence: 99%

Larval stages of the deep-sea lobster Polycheles typhlops (Decapoda, Polychelida) identified by DNA analysis: morphology, systematic, distribution and ecology

et al. 2014

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A total of 25 specimens of Eryoneicus larvae were collected near the Balearic Archipelago (Western Mediterranean Sea) in 2009 and 2010. Detailed morphological examination indicated that the smallest individual corresponded with the first zoea (ZI) stage of Polycheles typhlops hatched from a berried female by Guerao and Abelló (J Nat Hist 30(8): [1179][1180][1181][1182][1183][1184] 1996). Only two species of deep-sea polychelid lobster, namely P. typhlops and Stereomastis sculpta, are known to occur in the Mediterranean. Genetic distance comparisons and phylogenetic analysis of the mitochondrial 16S rDNA and Cox I genes of this early larva together with adults from several Polycheles and Stereomastis species allowed us to assign it to P. typhlops. This is the first wild-caught larval stage of a polychelid lobster being identified using molecular techniques. The remaining specimens were attributed to zoeal stages II-III and decapodid stage based on morphological comparison. The arrangement of spines along the anterior part of the middorsal line (R, 1, 1, 1, 2, C 1 ), characteristic of the former species E. puritanii, discriminates these larvae from other Eryoneicus found in the Mediterranean. The clear presence of epipods on the third maxilliped and pereiopods of the decapodid stage gives further support to the identification of E. puritanii as the larval stages of P. typhlops. Additionally, information on the ecology of these larvae, their abundances during different seasons, as well as their bathymetric distribution is reported.

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Morphology of the final stage phyllosoma larva of Scyllarus pygmaeus (Crustacea: Decapoda: Scyllaridae), identified by DNA analysis

Cited by 26 publications

References 15 publications

First record of an early benthic juvenile likely to be that of the Mediterranean slipper lobster, Scyllarides latus (Latreille, 1802)

First record of an early benthic juvenile likely to be that of the Mediterranean slipper lobster, Scyllarides latus (Latreille, 1802)

Findings of Phyllosoma Larvae and Nistos of the Family Scyllaridae (Crustacea, Decapoda) in the Southern Mediterranean Sea

Larval stages of the deep-sea lobster Polycheles typhlops (Decapoda, Polychelida) identified by DNA analysis: morphology, systematic, distribution and ecology

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