DNA barcoding allows identification of undescribed crab megalopas from the open sea

Marco-Herrero, Elena; Cuesta, José A.; González-Gordillo, J. Ignacio

doi:10.1038/s41598-021-99486-4

Cited by 8 publications

(4 citation statements)

References 78 publications

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“…The 16S sequence was obtained for the specimen IEOCD-GB08/173. This is the first 16S sequence known and published for an adult specimen of this species, and it matched 100% with the 16S sequence (MW264140) of a megalopa of this species collected from plankton samples (MEGMF24) from the Atlantic Ocean by Marco-Herrero et al [124]. The COI sequence was obtained for the specimens IEOCD-GB08/173 and IEOCD-LB0211/421, which showed the same haplotype and matched 100% with HVDBC074-11 and HVDBC075-11 (from Namibia) and 99.85% and 99.70% with the specimens ULLZ4650 from Ghana (MG462523) and MEGMF24 (MW264441) from the Atlantic Ocean, respectively.…”

Section: Family Portunidae Rafinesque 1815 Subfamily Portuninae Rafin...supporting

confidence: 66%

Marine Crabs of Guinea-Bissau, with Emphasis on the Deep Fauna, Supported by an Integrative Taxonomy

Muñoz,

García-Raso,

Abelló

et al. 2024

Diversity

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The updated checklist of the marine crabs of Guinea-Bissau presented in this work is the result of consolidating decades of research, ongoing systematic revisions of the regional carcinofauna, and the inclusion of new records. DNA markers and morphological analyses for accurate identifications are integrated. Sixty-one species are mentioned in this list after reviewing specimens from scientific collections and literature. Of these 61 species listed, the presence of 51 species in Guinea-Bissau is confirmed, and 21 are reported for the first time in the area. A total of 98 sequences were obtained from 41 species (51 of 16S for 38 species and 47 of COI for 35 species), and 48 sequences (24 of 16S and 24 of COI) were the first ones obtained for 29 species. The maximum or minimum bathymetric range is expanded by 16 species, and for other six species, a color description is provided for the first time. Merocryptus obsoletus is synonymized as Merocryptus boletifer. The present study will be a useful baseline for gathering further ecological information about globally important marine taxa, not only in Guinea-Bissau but about African brachyurans in general.

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Section: Family Portunidae Rafinesque 1815 Subfamily Portuninae Rafin...supporting

confidence: 66%

Marine Crabs of Guinea-Bissau, with Emphasis on the Deep Fauna, Supported by an Integrative Taxonomy

Muñoz,

García-Raso,

Abelló

et al. 2024

Diversity

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“…From the fraction of decapod crustaceans, we specifically targeted megalopae of P. gibbesi, A. hastatus, and C. ruber. Taxonomic descriptions of the larval morphology by Paula and Hartnoll (1989), Marco-Herrero et al (2021), andLandeira et al (2024) were used to identify them. The specimens were stored in 90% ethanol to facilitate their preservation.…”

Section: Study Area and Sampling Proceduresmentioning

confidence: 99%

“…However, significant uncertainties and informational gaps persist regarding the morphological development of brachyuran larvae, as well as their interplay with ecology, colonization, and adaptation processes (Torres et al, 2019). Specifically focusing on the family Portunidae, which is the central subject of this study, there remains a dearth of information concerning megalopa larval morphology (Marco-Herrero et al, 2021). Given that Portunidae encompasses numerous species of economic importance and with invasive potential, such as Callinectes sapidus and Charybdis helleri, a thorough investigation into their larval stages will allow making appropriate decisions for ecosystem management.…”

Section: Introductionmentioning

confidence: 99%

Applying geometric morphometrics in megalopa larval stages: relevance for species distribution and biological invasion studies

Díaz-Cruz,

Fatira,

Tuset

et al. 2024

Contrib. Zool.

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Larval morphology in brachyuran crabs is an essential trait defining survival in the planktonic environment. The present study describes the morphology (carapace and chelipeds) of megalopa larvae in three different species (Percnon gibbesi, Cronius ruber, and Achelous hastatus) using geometric morphometric analysis (gma). The study aim was to compare the observed body patterns at interspecific and intraspecific levels. The results showed a marked interspecific distinction of C. ruber larvae based on the rostral region of carapace and cheliped length. We relate these differences to advantages in life performance, as in other animal models, suggesting that larval morphology can be another factor contributing to the invasiveness of C. ruber. At intraspecific level, we found a high morphological similarity between two distant geographical locations, indicating strong genetic connectivity in the populations of P. gibbesi from the Canary Islands. Our findings advance the importance of larval morphology for species performance during the plankton phase that eventually can determine invasiveness in brachyuran crabs. We suggest future studies focusing on the inter-population comparisons of megalopa morphology at larger spatiotemporal scales.

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“… 22 – 24 ], whereas other studies choose to focus on one taxonomic group, such as brachyuran crabs [ 25 , 26 ]. Molecular techniques such as DNA barcoding are growingly used to aid in the identification process of decapod crustacean larvae [ 27 – 29 ]. The interest of covering a wide geographical area such as the eastern Spanish Mediterranean coast lies in observing how diversity patterns change through different geomorphological structures and environmental conditions.…”

Section: Introductionmentioning

confidence: 99%

Summer decapod crustacean larval communities along the eastern Spanish Mediterranean coast

et al. 2022

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Decapod crustaceans are a diverse group englobing several species of commercial and ecological interest. In the Mediterranean Sea, decapod crustacean fisheries are among the most profitable, although in many cases their early life stages are poorly known. In this study, we tackle the composition and diversity patterns of the decapod larval communities along the eastern Spanish Mediterranean coast. Zooplankton sampling was carried out in surface waters at 101 stations from July 20th to August 31st 2016, over bottom depths between 90 and 1840 m. All shrimp larvae were identified to the lowest possible taxonomical level, and larvae from Anomura, Achelata and Brachyura were left at infraorder level. No larvae of Astacidea or Polychelida were found. The total zooplankton volume was estimated. A total of 20,022 decapod crustacean larvae were identified, focusing on shrimp taxa (suborder Dendrobranchiata and infraorder Caridea). Both zooplankton volume and decapod larval density values were higher in the northern part of the studied area, cut by deep submarine canyons. After assessing the diversity parameters of the decapod larval community, we present the summer mesoscale larval distribution of several species of commercial interest such as the caramote prawn (Penaeus kerathurus) or the deep-water rose shrimp (Parapenaeus longirostris). The northern submarine canyons are dominated by the presence of Penaeoidea, being the deep-sea shrimp Aristeus antennatus the dominant species in the community in this area, while the Sergestoidea are more abundant in the southern zone. This is the largest-scale study on decapod larvae mesoscale distribution in the Mediterranean Sea.

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DNA barcoding allows identification of undescribed crab megalopas from the open sea

Cited by 8 publications

References 78 publications

Marine Crabs of Guinea-Bissau, with Emphasis on the Deep Fauna, Supported by an Integrative Taxonomy

Marine Crabs of Guinea-Bissau, with Emphasis on the Deep Fauna, Supported by an Integrative Taxonomy

Applying geometric morphometrics in megalopa larval stages: relevance for species distribution and biological invasion studies

Summer decapod crustacean larval communities along the eastern Spanish Mediterranean coast

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