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New records of the shrimp-like decapods Alpheus angulosus, Alpheus buckupi, and Axianassa australis from Maranhão, Brazil

Abstract

We provide morphological and genetic evidence to establish the presence/occurrence of Alpheus angulosus, Alpheus buckupi, and Axianassa australis on the coast of Maranhão, Brazil. The specimens were collected in December 2019 by actively searching the estuaries and rocky shores of São Luís Island, northeast of Brazil. In addition to morphological analyses, two mitochondrial genes were obtained (Cytochrome C Oxidase I and 16S), and a phylogenetic analysis was conducted to verify the specimens’ identity. Accurate identification is an essential tool to obtain reliable information about the occurrence of the species and thus help assess biodiversity in a highly diverse region. These finding also serve to stimulate future studies in poorly studied areas as well as set a baseline for biodiversity conservation and preservation strategies.

Keywords
Decapoda; molecular markers; Northeast; occurrence data; São Luís Island

INTRODUCTION

"Upaon-Açu" or São Luís Island is a Brazilian territory that is part of the Golfão Maranhense Archipelago. This region is under the strong influence of the Amazon River plume, and the biodiversity of decapod crustaceans is understudied in this very extensive and diverse coastline (Francini-Filho et al., 2018Francini- Filho RB; Asp NE; Siegle E; Hocevar J; Lowyck K; D'Avila N … and Thompson FL 2018. Perspectives on the Great Amazon Reef: extension, biodiversity, and threats. Frontiers in Marine Science, 5(142): 1-5. https://doi.org/10.3389/fmars.2018.00142
https://doi.org/10.3389/fmars.2018.00142...
; Lima and Martinelli-Lemos, 2019Lima FA and Martinelli-Lemos JM 2019. Checklist of the Brachyura of the Brazilian Amazon Coastal Zone and knowledge status of their larval development. Zootaxa, 4646(2): 301-321. https://doi.org/10.11646/zootaxa.4646.2.6
https://doi.org/10.11646/zootaxa.4646.2....
; Rodrigues-Inoue et al., 2021Rodrigues-Inoue ACM; Dos Santos A and Martinelli-Lemos JM 2021. Distribution patterns of Anomura, Axiidea and Gebiidea (Crustacea, Decapoda) larvae at the Amazon shelf. Regional Studies in Marine Science, 47: 101946. https://doi.org/10.1016/j.rsma.2021.101946
https://doi.org/10.1016/j.rsma.2021.1019...
).

The genus AlpheusFabricius, 1798Fabricius JC 1798. Supplementum Entomologiae Systematicae. Hafniae, Proft et Storck, 1-572. https://www.biodiversitylibrary.org/page/25565932
https://www.biodiversitylibrary.org/page...
is composed of more than 320 species of snapping shrimps, being the second most species-rich genus within the Caridea (De Grave and Fransen, 2011De Grave S and Fransen CHJM 2011. Carideorum catalogus: the recent species of the dendrobranchiate, stenopodidean, procarididean and caridean shrimps (Crustacea: Decapoda). Zoologische Mededelingen, 85(9): 195-589. https://repository.naturalis.nl/pub/403473
https://repository.naturalis.nl/pub/4034...
; WoRMS, 2023aWoRMS 2023a. Alpheus Fabricius, 1798. Accessed at: Accessed at: https://www.marinespecies.org/aphia.php?p=taxdetailsandid=106978 on 2023-02-25
https://www.marinespecies.org/aphia.php?...
). They inhabit diverse environments and microhabitats such as estuaries, rocky coasts, unconsolidated substrate, and some live in association with other organisms such as sponges and corals (De Grave and Fransen, 2011De Grave S and Fransen CHJM 2011. Carideorum catalogus: the recent species of the dendrobranchiate, stenopodidean, procarididean and caridean shrimps (Crustacea: Decapoda). Zoologische Mededelingen, 85(9): 195-589. https://repository.naturalis.nl/pub/403473
https://repository.naturalis.nl/pub/4034...
; Almeida et al., 2018Almeida AO; Terossi M; Buranelli RC; Castilho AL; Costa RC; Zara FJ and Mantelatto FL 2018. Checklist of decapods (Crustacea) from the coast of São Paulo State (Brazil) supported by integrative molecular and morphological data: II. Infraorder Caridea: family Alpheidae. Zootaxa, 4450(3): 331-358. https://doi.org/10.11646/zootaxa.4450.3.2
https://doi.org/10.11646/zootaxa.4450.3....
).

The genus AxianassaSchmitt, 1924Schmitt WL 1924. The macruran, anomuran and stomatopod Crustacea. Bijdragen tot de kennis der fauna van Curaçao. Resultaten eener reis van Dr. C.J. van der Horst in 1920. Bijdragen tot de Dierkunde, 23: 61-81, pl. 8. (Gebiidea) consists of decapods popularly called mud-shrimps, and currently covers about 15 described species (Anker, 2020Anker A 2020. Strianassa lerayi gen. et sp. nov., a new laomediid mud-shrimp from the eastern Pacific, with new records of Axianassa ngochoae Anker, 2010 and Heteroaxianassa heardi (Anker, 2011) in the western Pacific (Malacostraca: Decapoda: Gebiidea). Zootaxa, 4820(3): 523-539. https://doi.org/10.11646/zootaxa.4820.3.6
https://doi.org/10.11646/zootaxa.4820.3....
; WoRMS, 2023bWoRMS 2023b. Axianassa Schmitt, 1924. Accessed at: Accessed at: https://www.marinespecies.org/aphia.php?p=taxdetailsandid=367979 on 2023-02-25
https://www.marinespecies.org/aphia.php?...
), distributed in the western Atlantic, eastern Pacific, and western Pacific (Anker and Pachelle, 2016Anker A and Pachelle PPG 2016. Mud-shrimps of the genus Axianassa Schmitt, 1924 from Panama, with description of two new species (Decapoda: Gebiidea: Laomediidae). Zootaxa, 4111(2): 101-125. https://doi.org/10.11646/zootaxa.4111.2.1
https://doi.org/10.11646/zootaxa.4111.2....
; Komai et al., 2020Komai T; Watanabe T; Matsui S and Tamego T 2020. A new species of the mud shrimp genus Axianassa Schmitt, 1924 (Decapoda: Gebiidea: Laomediidae) from Japan. Zootaxa, 4852(4): 461-474. https://doi.org/10.11646/zootaxa.4852.4.4
https://doi.org/10.11646/zootaxa.4852.4....
).

We report here new occurrences of the species Alpheus angulosusMcClure, 2002McClure MR 2002. Revised nomenclature of Alpheus angulatus McClure, 1995 (Decapoda: Caridea: Alpheidae). Proceedings of the Biological Society of Washington, 115: 368-370. https://www.biodiversitylibrary.org/part/49262
https://www.biodiversitylibrary.org/part...
, Alpheus buckupiAlmeida, Terossi, Araújo-Silva and Mantelatto, 2013Almeida AO; Costa-Souza AC; Cunha AM; Santos PS; Oliveira MV and Soledade GO 2013. Estuarine caridean shrimps (Crustacea: Decapoda) from Ilhéus, Bahia, Brazil: Updated checklist and a key for their identification. Check List, 9(6): 1396-1405. https://doi.org/10.15560/9.6.1396
https://doi.org/10.15560/9.6.1396...
, and Axianassa australisRodrigues and Shimizu, 1992Rodrigues SA and Shimizu RM 1992. Description of a new Axianassa (Crustacea: Decapoda: Thalassinidea) from Brazil, and its first larval stage. Proceedings of the Biological Society of Washington, 105: 317-323. https://www.biodiversitylibrary.org/page/35607490#page/337/mode/1up
https://www.biodiversitylibrary.org/page...
from São Luiz Island, thus expanding their known northern distribution to the coast of Maranhão, Brazil.

MATERIAL AND METHODS

The specimens were collected during an exploratory field trip carried out in December 2019 using an active search method, along the estuaries and rocky shores of São Luís Island, northeast of Brazil (Fig. 1). After sampling, the specimens were frozen, fixed in 80% ethanol and deposited in Coleção de Crustáceos do Departamento de Biologia (CCDB), Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil: CCDB 6698 (Al. angulosus), CCDB 6699, 6700 (Al. buckupi), and CCDB 6873 (Ax. australis). The identification keys in Soledade and Almeida (2013Soledade GO and Almeida AO 2013. Snapping shrimps of the genus Alpheus Fabricius, 1798 from Brazil (Caridea: Alpheidae): updated checklist and key for identification. Nauplius, 21(1): 89-122. https://doi.org/10.1590/S0104-64972013000100010
https://doi.org/10.1590/S0104-6497201300...
) and Anker (2010Anker A 2010. The mud-shrimp genus Axianassa Schmitt, 1924 (Crustacea, Decapoda, Axianassidae) in the Indo-West Pacific, with description of a new species from French Polynesia. Zootaxa, 2557(1): 49-59. https://doi.org/10.11646/zootaxa.2557.1.5
https://doi.org/10.11646/zootaxa.2557.1....
) were used to morphologically identify the Alpheus and Axianassa species, respectively. In addition, molecular analyses of COI and 16S genes of all collected individuals were performed to increase the accuracy of the identification. The individuals were measured (in mm) with respect to carapace length (CL) under a Leica M250 C stereomicroscope and were categorized as: j = juvenile; ♂ = male; ♀ = non-ovigerous female and ♀ov = ovigerous female.

Figure 1.
Map of São Luís Island, Maranhão, Brazil, with the new collection points of the specimens (source: IBGE - Instituto Brasileiro de Geografia e Estatística).

Molecular protocols and analysis

Genomic DNA was extracted from the abdominal musculature of each specimen using Chelex® Resin (Estoup et al., 1996Estoup A; Lagiardèr CR; Perrot E and Chourrout D 1996. Rapid one-tube DNA extraction for reliable PCR detection of fish polymorphic markers and transgenes. Molecular Marine Biology and Biotechnology, 5: 295-298. https://www.researchgate.net/publication/235733942_Rapid_one-tube_DNA_extraction_for_reliable_PCR_detection_of_fish_polymorphic_markers_and_transgenes
https://www.researchgate.net/publication...
) following the manufacturer and Mantelatto et al. (2018Mantelatto FL; Terossi M; Negri M; Buranelli RC; Robles R; Magalhães T and Miyazaki MJ 2018. DNA sequence database as a tool to identify decapod crustaceans on the São Paulo coastline. Mitochondrial DNA Part A, 29(5): 805-815. https://doi.org/10.1080/24701394.2017.1365848
https://doi.org/10.1080/24701394.2017.13...
) protocols. The COLB2/COH6 primers (Schubart and Huber, 2006Schubart CD and Huber MGJ 2006. Genetic comparisons of German populations of the stone crayfish, Austropotamobius torrentium (Crustacea: Astacidae). Bulletin Français de la Pêche et de la Pisciculture, 380-381: 1019-1028. https://doi.org/10.1051/kmae:2006008
https://doi.org/10.1051/kmae:2006008...
; Mantelatto et al., 2016Mantelatto FL; Carvalho FL; Simões SM; Negri M; Souza-Carvalho EA and Terossi M 2016. New primers for amplification of cytochrome c oxidase subunit I barcode region designed for species of Decapoda (Crustacea). Nauplius, 24: e2016030. https://doi.org/10.1590/2358-2936e2016030
https://doi.org/10.1590/2358-2936e201603...
) for Alpheus species were used to enlarge the segment of the COI gene and LCOI/HCOI (Folmer et al. 1994Folmer O; Black M; Hoeh W; Lutz R and Vrijenhoek R 1994. DNA primers for amplification of mitochondrial cytochrome c oxidase subunit I from diverse metazoan invertebrates. Molecular Marine Biology and Biotechnology, 3: 294-299. https://www.mbari.org/wp-content/uploads/2016/01/Folmer_94MMBB.pdf
https://www.mbari.org/wp-content/uploads...
) for Ax. australis and H2/L2 (Schubart et al., 2000Schubart CD; Neigel JE and Felder DL 2000. Use of the mitochondrial 16S rRNA gene for phylogenetic and population studies of Crustacea. p. 817-830. In: Schram FR and Vaupel Klein JC (Eds.), Proceedings of the 4th International Crustacean Congress - Crustaceans and the Biodiversity Crisis. Leiden, Brill.) for 16S for the three species.

The purified PCR products were sent to the Faculdade de Ciências Agrárias e Veterinárias de Jaboticabal (FCAV), Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP), to be amplified.

The obtained sequences were confirmed by the analysis of both strands and a consensus sequence obtained through the program Geneious 2021.2.2 (Kearse et al., 2012Kearse M; Moir R; Wilson A; Stones-Havas S; Cheung M; Sturrock S … and Drummond A 2012. Geneious Basic: an integrated and extendable desktop software platform for the organization and analysis of sequence data. Bioinformatics, 28(12): 1647-1649. https://doi.org/10.1093/bioinformatics/bts199
https://doi.org/10.1093/bioinformatics/b...
). The regions of the primers and non-readable regions of the sequences were removed and checked for the presence of pseudogenes, and the remaining fragments had their identity verified by comparative alignment in the BLAST system (http://blast.ncbi.ncbi.nlm.nih.gov/blast.cgi). All sequences were published in GenBank (Tab. 1).

Table 1.
Details (in bold) of Alpheus angulosusMcClure, 2002McClure MR 2002. Revised nomenclature of Alpheus angulatus McClure, 1995 (Decapoda: Caridea: Alpheidae). Proceedings of the Biological Society of Washington, 115: 368-370. https://www.biodiversitylibrary.org/part/49262
https://www.biodiversitylibrary.org/part...
, Alpheus buckupiAlmeida, Terossi, Araújo-Silva and Mantelatto, 2013Almeida AO; Costa-Souza AC; Cunha AM; Santos PS; Oliveira MV and Soledade GO 2013. Estuarine caridean shrimps (Crustacea: Decapoda) from Ilhéus, Bahia, Brazil: Updated checklist and a key for their identification. Check List, 9(6): 1396-1405. https://doi.org/10.15560/9.6.1396
https://doi.org/10.15560/9.6.1396...
, and Axianassa australisRodrigues and Shimizu, 1992Rodrigues SA and Shimizu RM 1992. Description of a new Axianassa (Crustacea: Decapoda: Thalassinidea) from Brazil, and its first larval stage. Proceedings of the Biological Society of Washington, 105: 317-323. https://www.biodiversitylibrary.org/page/35607490#page/337/mode/1up
https://www.biodiversitylibrary.org/page...
collection, and additional species of Alpheidae Rafinesque, 1815 and Axianassidae Schmitt, 1924Schmitt WL 1924. The macruran, anomuran and stomatopod Crustacea. Bijdragen tot de kennis der fauna van Curaçao. Resultaten eener reis van Dr. C.J. van der Horst in 1920. Bijdragen tot de Dierkunde, 23: 61-81, pl. 8. used in the comparison. Voucher refers to specimen and respective catalog numbers from museum collections. Location is the locality of collection of the specimen. Numbers of NCBI GenBank accession of 16S and COI markers are available. Abbreviations: COI = Cytochrome Oxidase subunit I; 16S = 16S rDNA; CCDB = Coleção de Crustáceos do Departamento de Biologia da Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Brazil; MOUFPE = Museu de Oceanografia da Universidade Federal de Pernambuco, Brazil; OUMNH.ZC = Oxford University Museum of Natural History, Oxford, United Kingdom; UESC = Universidade Estadual de Santa Cruz, Ilhéus, Brazil; UF = Florida Museum of Natural History, University of Florida, Gainesville, FL; MZUESC = Museu de Zoologia da Universidade Estadual de Santa Cruz, Ilhéus, Brazil; MV = Museum Victoria, Carlton, Australia.

To confirm the similarity between the sequences generated and those available in GenBank, distance matrix analyses were performed in MEGA X software (Kumar et al., 2018Kumar S; Stecher G; Li M; Knyaz C and Tamura K 2018. MEGA X: molecular evolutionary genetics analysis across computing platforms. Molecular Biology and Evolution, 35(6): 1547-1549. https://doi.org/10.1093/molbev/msy096
https://doi.org/10.1093/molbev/msy096...
).

The alignment of the consensus sequences was performed in the software MAFFT v.7 (Katoh and Toh, 2008Katoh K and Toh H 2008. Recent developments in the MAFFT multiple sequence alignment program. Briefings in Bioinformatics, 9: 286-298. https://doi.org/10.1093/bib/bbn013
https://doi.org/10.1093/bib/bbn013...
; http://mafft.cbrc.jp/alignment/server/). Phylogenetic analyses of maximum likelihood were performed for each species and gene using the IQ-TREE program (Miller et al., 2010Miller MA; Pfeiffer W and Schwartz T 2010. Creating the CIPRES Science Gateway for inference of large phylogenetic trees. p. 1-8. In: Proceedings of the Gateway Computing Environments Workshop (GCE), New Orleans, Louisiana, USA. https://doi.org/10.1109/GCE.2010.5676129
https://doi.org/10.1109/GCE.2010.5676129...
). The evolutionary model that best adjusted to the data was determined by IQ-TREE according to the Bayesian Information Criterion (BIC) (Luo et al., 2010Luo A; Qiao H; Zhang Y; Shi W; Ho SY; Xu W; Zhang A and Zhu C 2010. Performance of criteria for selecting evolutionary models in phylogenetics: a comprehensive study based on simulated datasets. BMC Evolutionary Biology, 10(242): 1-13. https://doi.org/10.1186/1471-2148-10-242
https://doi.org/10.1186/1471-2148-10-242...
) and used for tree inference. The branch support was evaluated by ultra-fast bootstrap with 1000 replicates. Details about DNA sequences from other species used as a comparative ingroup and the outgroup are in Tab. 1.

RESULTS

Systematics

Infraorder Caridea Dana, 1852

Superfamily Alpheoidea Rafinesque, 1815

Family Alpheidae Rafinesque, 1815

Alpheus angulosus McClure, 2002McClure MR 2002. Revised nomenclature of Alpheus angulatus McClure, 1995 (Decapoda: Caridea: Alpheidae). Proceedings of the Biological Society of Washington, 115: 368-370. https://www.biodiversitylibrary.org/part/49262
https://www.biodiversitylibrary.org/part...

(Fig. 2)

Figure 2.
Alpheus angulosusMcClure, 2002McClure MR 2002. Revised nomenclature of Alpheus angulatus McClure, 1995 (Decapoda: Caridea: Alpheidae). Proceedings of the Biological Society of Washington, 115: 368-370. https://www.biodiversitylibrary.org/part/49262
https://www.biodiversitylibrary.org/part...
. 1 ♂, CL 8.96 mm, CCDB 6698. Photo: Jeniffer Teles.

Material examined. Brazil - Maranhão: 1 ♂ (CL 8.96 mm), 2 ♀ov (CL 8.67 mm, CL 9.09 mm), CCDB 6698, São José de Ribamar, praia de Araçagi, 02º27’57”S 44º12’08”W, colls. J.N. Teles and N.F. França, 11.xii.2019.

Comparative material. Brazil - Pernambuco: 1 ♂ 1 ♀ov, CCDB 4518, Ipojuca, praia de Serrambi, 08º33’51.28”S 35º01’34.91”W, colls. F.L. Mantelatto and F.B. Mantelatto, 01.i.2013; 1 ♂ 1 ♀ov, CCDB 7316, praia de Carneiros, Tamandaré, 08º41’41.17”S 35º04’28.60”W, coll. G.L. Bochini, 10.xii.2017; 1 ♀, CCDB 7317, rio Massangana, Suape, 08º21’34.49”S 34º57’40.34”W, coll. G.L. Bochini, 27.ix.2019.

Distribution. Western Atlantic - USA (North Carolina to Florida), Gulf of Mexico, Caribbean Sea, French Guyana, Brazil (Maranhão, Atol das Rocas, Fernando de Noronha Islands, Ceará, Paraíba, Bahia, Rio de Janeiro, São Paulo, Santa Catarina, Rio Grande do Sul) (Almeida et al., 2018Almeida AO; Terossi M; Buranelli RC; Castilho AL; Costa RC; Zara FJ and Mantelatto FL 2018. Checklist of decapods (Crustacea) from the coast of São Paulo State (Brazil) supported by integrative molecular and morphological data: II. Infraorder Caridea: family Alpheidae. Zootaxa, 4450(3): 331-358. https://doi.org/10.11646/zootaxa.4450.3.2
https://doi.org/10.11646/zootaxa.4450.3....
; present study).

Remarks. The record presented herein from São José de Ribamar, Maranhão, extends the northern distribution range of the species in Brazil approximately 345 km from its previous occurrence in Barroquinha, Ceará (Pachelle et al., 2016Pachelle PPG; Anker A, Mendes CB and Bezerra LEA 2016. Decapod crustaceans from the state of Ceará, northeastern Brazil: an updated checklist of marine and estuarine species, with 23 new records. Zootaxa, 4131(1): 1-63. https://doi.org/10.11646/zootaxa.4131.1.1
https://doi.org/10.11646/zootaxa.4131.1....
).

GenBank accession numbers. CCDB 6698: COI (OQ108486-OQ108488); 16S (OQ110583-OQ110585).

Alpheus buckupi Almeida, Terossi, Araújo-Silva and Mantelatto, 2013Almeida AO; Costa-Souza AC; Cunha AM; Santos PS; Oliveira MV and Soledade GO 2013. Estuarine caridean shrimps (Crustacea: Decapoda) from Ilhéus, Bahia, Brazil: Updated checklist and a key for their identification. Check List, 9(6): 1396-1405. https://doi.org/10.15560/9.6.1396
https://doi.org/10.15560/9.6.1396...

(Fig. 3)

Figure 3.
Alpheus buckupiAlmeida, Terossi, Araújo-Silva and Mantelatto, 2013Almeida AO; Costa-Souza AC; Cunha AM; Santos PS; Oliveira MV and Soledade GO 2013. Estuarine caridean shrimps (Crustacea: Decapoda) from Ilhéus, Bahia, Brazil: Updated checklist and a key for their identification. Check List, 9(6): 1396-1405. https://doi.org/10.15560/9.6.1396
https://doi.org/10.15560/9.6.1396...
. 1 ♂, CL 7.54 mm, CCDB 6699. Photo: Jeniffer Teles.

Material examined. Brazil - Maranhão: 1 ♂ (CL 7.54 mm), 1 ♀ (CL 8.67 mm, CL 7.58 mm), CCDB 6699, São Luís, estuário rio Bacanga, 02º31’50”S 44º18’29”W, colls. J.N. Teles and N.F. França, 05.xii.2019; 2 ♂ (4.64 mm, 4.85 mm), 1 ♀ (CL 3.66 mm), CCDB 6700, praia da Ponta d'Areia, 02º29’36”S 44º18’22”W, colls. J.N. Teles and N.F. França, 12.xii.2019.

Comparative material. Brazil - Pernambuco: 1 ♂ 1 ♀, paratypes, CCDB 3966), Recife, 08º04’12,15”S 34º52’19,11”W, colls. A.O. Almeida, R.J.C. Paiva and F.S. Santana, 19.viii.2008Almeida AO and Coelho PA 2008. Estuarine and marine brachyuran crabs (Crustacea: Decapoda) from Bahia, Brazil: checklist and zoogeographical considerations. Latin American Journal of Aquatic Research, 36(2): 183-222. https://doi.org/10.3856/vol36-issue2-fulltext-4
https://doi.org/10.3856/vol36-issue2-ful...
. - Espírito Santo: 3 ♂, CCDB 4519, Piúma, 20°50’40.5”S 40°43’24.9”W, colls. F.L. Carvalho, D.F. Peiró and R. Robles, 15.vi.2012. - São Paulo: 1 ♂ 1 ♀ov, CCDB 4883, São Sebastião, 23º48’78.1”S 45º24’46.9”W, colls. F.L. Mantelatto and L.M. Pardo, 10.ix.2013.

Distribution. Western Atlantic - Guadeloupe, Venezuela (Orinoco Delta), Brazil (Pará, Maranhão, Ceará, Rio Grande do Norte, Pernambuco, Alagoas, Sergipe, Bahia, São Paulo). Eastern Atlantic - São Tomé and Príncipe (Almeida et al., 2018Almeida AO; Terossi M; Buranelli RC; Castilho AL; Costa RC; Zara FJ and Mantelatto FL 2018. Checklist of decapods (Crustacea) from the coast of São Paulo State (Brazil) supported by integrative molecular and morphological data: II. Infraorder Caridea: family Alpheidae. Zootaxa, 4450(3): 331-358. https://doi.org/10.11646/zootaxa.4450.3.2
https://doi.org/10.11646/zootaxa.4450.3....
; present study).

Remarks. Despite the occurrences in the states of Pará and Ceará, this is the first time that the geographical occurrence of Al. buckupi is reported in the state of Maranhão.

GenBank accession numbers. CCDB 6699: COI (OQ108489), 16S (OQ110587; OQ110588); CCDB 6700: COI (OQ108490); 16S (OQ110589).

Infraorder Gebiidea de Saint Laurent, 1979

Family Axianassidae Schmitt, 1924Schmitt WL 1924. The macruran, anomuran and stomatopod Crustacea. Bijdragen tot de kennis der fauna van Curaçao. Resultaten eener reis van Dr. C.J. van der Horst in 1920. Bijdragen tot de Dierkunde, 23: 61-81, pl. 8.

Genus Axianassa Schmitt, 1924Schmitt WL 1924. The macruran, anomuran and stomatopod Crustacea. Bijdragen tot de kennis der fauna van Curaçao. Resultaten eener reis van Dr. C.J. van der Horst in 1920. Bijdragen tot de Dierkunde, 23: 61-81, pl. 8.

Axianassa australis Rodrigues and Shimizu, 1992Rodrigues SA and Shimizu RM 1992. Description of a new Axianassa (Crustacea: Decapoda: Thalassinidea) from Brazil, and its first larval stage. Proceedings of the Biological Society of Washington, 105: 317-323. https://www.biodiversitylibrary.org/page/35607490#page/337/mode/1up
https://www.biodiversitylibrary.org/page...

(Fig. 4)

Figure 4.
Axianassa australisRodrigues and Shimizu, 1992Rodrigues SA and Shimizu RM 1992. Description of a new Axianassa (Crustacea: Decapoda: Thalassinidea) from Brazil, and its first larval stage. Proceedings of the Biological Society of Washington, 105: 317-323. https://www.biodiversitylibrary.org/page/35607490#page/337/mode/1up
https://www.biodiversitylibrary.org/page...
. 1 ♂, CL 9.67 mm, CCDB 6873. Photo: Jeniffer Teles.

Material examined. Brazil - Maranhão: 1 ♂ (CL 9.67 mm), CCDB 6873, São José de Ribamar, praia de Juçatuba, 02°36’53”S 44°06’23”W, colls. J.N. Teles and N.F. França, 10.xii.2019.

Comparative material. Brazil - São Paulo: 3 ♂, 2 ♀ 2 j, CCDB 5632, Ubatuba, Araçá, 23°48’78.1”S 45°24’46.9”W, colls. F.L. Mantelatto et al., 02.xii.2014. - Espírito Santo: 2 ♂, 2 ov, CCDB 2246, Guarapari, 20°40’01”S 40°29’49”W, colls. F.L. Mantelatto, D.F. Peiró and E.C. Mossolin, 04.xi.2006. - Pernambuco: 2 ♂, 1 ♀, 3 ov, CCDB 3097, Sirinhaém, 08°41’28”S 35°06’11”W, colls. F.L. Mantelatto and D. Castiglioni, 07.x.2010; 7 ♂, 3 ♀, CCDB 7168, Recife, 08°04’40”S 34°52’31”W, colls. F.L. Mantelatto, A.S. Rios, G.L. Bochini and F. Balbino, 28.viii.2022.

Distribution. Western Atlantic - USA (Texas, Florida), southwestern Gulf of Mexico, Caribbean Colombia, Brazil (Maranhão, Ceará, Pernambuco, Sergipe, Bahia, Espírito Santo, São Paulo, Paraná) (Mantelatto et al., 2022Mantelatto FL; Tamburus AF; Carvalho-Batista A; Rossi N; Buranelli RC; Pantaleão JÁ; Teles JN … and Costa RC 2022. Checklist of decapod crustaceans from the coast of the São Paulo state (Brazil) supported by integrative molecular and morphological data: V. Dendrobranchiata and Pleocyemata [Achelata, Astacidea, Axiidea, Caridea (Alpheoidea and Processoidea excluded), Gebiidea, Stenopodidea]. Zootaxa, 5121(1): 1-74. https://doi.org/10.11646/zootaxa.5121.1.1
https://doi.org/10.11646/zootaxa.5121.1....
; present study).

Remarks. This is the first time that A. australis is reported in the state of Maranhão, increasing its geographical distribution by approximately 582 km from the previous northernmost record in Paracuru, Ceará (Pachelle et al., 2016Pachelle PPG; Anker A, Mendes CB and Bezerra LEA 2016. Decapod crustaceans from the state of Ceará, northeastern Brazil: an updated checklist of marine and estuarine species, with 23 new records. Zootaxa, 4131(1): 1-63. https://doi.org/10.11646/zootaxa.4131.1.1
https://doi.org/10.11646/zootaxa.4131.1....
; present study).

GenBank accession numbers. CCDB 6873: COI (OQ108484), 16S (OQ110581); CCDB 7168 - COI (OQ108485), 16S (OQ110582).

Molecular data

The sequences of three individuals of Al. angulosus (CCDB 6698) were grouped with specimen from Bahia, Brazil (bootstrap support 91%; 16S gene). The same occurred for Al. buckupi (CCDB 6699, 6700) that aligned with individuals from São Tomé and Príncipe; Pernambuco, Brazil; Bahia, Brazil; and São Paulo, Brazil (bootstrap support 98%; 16S) (Fig. 5A).

Figure 5.
Phylogenetic tree based on Maximum Likelihood analysis of partial fragments of (A) COI and (B) 16S to contextualize the specimens of Alpheus angulosus and Al. buckupi from Maranhão (Brazil).

The COI gene of Al. angulosus presented a cluster with the specimen of Ilhéus, Bahia, Brazil (bootstrap support 98%; Fig. 5B). Alpheus buckupi did not have sequences for the COI gene available in GenBank, but there was a grouping of the sequences generated in this work (bootstrap support 100%) distant from others Alpheus species (Fig. 5B). The divergence average among Al. angulosus sequences of the present study and GenBank was 0.53% for COI and 0.20% 16S. Alpheus buckupi was 0.80% for COI and 0.43% for 16S.

Both genes (COI and 16S) grouped Ax. australis (bootstrap support 99%) with the sequences of individuals from São Paulo, Brazil (Fig. 6A,B). The divergence average among Ax. australis sequences of the present study and GenBank was 1.17% for COI and 2.42% for 16S.

Figure 6.
Phylogenetic tree based on Maximum Likelihood analysis of partial fragments of (A) COI and (B) 16S to contextualize the specimens of Axianassa australis from Maranhão (Brazil).

DISCUSSION

We obtained robust information (morphological and molecular) to expand the geographical distribution of Al. angulosus, Al. buckupi, and Ax. australis to the coast of Maranhão, Brazil. These data improve the baseline information in biogeographical, conservation, and preservation fields of the Brazilian fauna. In addition to providing new sequences, the present paper aims to assist studies using databases of occurrence and distribution points of marine species, such as population structure and dynamics, macroecological studies, modeling of past and future species distribution, and local and regional species diversity, among others.

In Brazil, the state of Maranhão presents a gap of knowledge in the geographical distribution of marine/estuarine decapod crustaceans, with many examples of species that have records in neighboring states (Piauí and Pará), but with no records in this intervening state. Despite some studies that bring information about brachyuran decapods in Maranhão, the region presents a great unexplored diversity, mainly due to the great influence of the Amazon River plume, which is part of the Brazilian Amazon Coastal Zone (BACZ) along with the states of Amapá and Pará (Lima and Martinelli-Lemos, 2019Lima FA and Martinelli-Lemos JM 2019. Checklist of the Brachyura of the Brazilian Amazon Coastal Zone and knowledge status of their larval development. Zootaxa, 4646(2): 301-321. https://doi.org/10.11646/zootaxa.4646.2.6
https://doi.org/10.11646/zootaxa.4646.2....
). This region is characterized as a transition zone and in some cases, it acts as a geographical barrier between species from the Caribbean and Brazil delimiting populations (Mandai et al., 2018Mandai SS; Buranelli RC; Schubart CD and Mantelatto FL 2018. Phylogenetic and phylogeographic inferences based on two DNA markers reveal geographic structure of the orange claw hermit crab Calcinus tibicen (Anomura: Diogenidae) in the western Atlantic. Marine Biology Research, 14(6): 565-580. https://doi.org/10.1080/17451000.2018.1497184
https://doi.org/10.1080/17451000.2018.14...
; Peres and Mantelatto, 2020Peres PA and Mantelatto FL 2020. Salinity tolerance explains the contrasting phylogeographic patterns of two swimming crabs species along the tropical western Atlantic. Evolutionary Ecology, 34(4): 589-609. https://doi.org/10.1007/s10682-020-10057-x
https://doi.org/10.1007/s10682-020-10057...
; Peres et al., 2022Peres PA; Bracken-Grissom H; Timm LE and Mantelatto FL 2022. Genomic analyses implicate the Amazon-Orinoco Plume as the driver of cryptic speciation in a swimming crab. Genes, 13: 2263, 15 p. https://doi.org/10.3390/genes13122263
https://doi.org/10.3390/genes13122263...
). The present records, carried out in a short period, is evidence for the biodiversity potential of this region, and reinforces the importance of exploratory surveys in order to know the biodiversity of poorly known areas. The relevance of the faunal survey (checklists) among the Brazilian regions is unquestionable to protect the biodiversity and serve as support for different researchers. Some examples of great success in this field are the checklist compilations carried out during long periods in some Brazilian states, such as the São Paulo coast line, that reveals a significant diversity of decapods such as Caridea (Almeida et al., 2018Almeida AO; Terossi M; Buranelli RC; Castilho AL; Costa RC; Zara FJ and Mantelatto FL 2018. Checklist of decapods (Crustacea) from the coast of São Paulo State (Brazil) supported by integrative molecular and morphological data: II. Infraorder Caridea: family Alpheidae. Zootaxa, 4450(3): 331-358. https://doi.org/10.11646/zootaxa.4450.3.2
https://doi.org/10.11646/zootaxa.4450.3....
; Terossi et al., 2018Terossi M; Almeida AO; Buranelli RC; Castilho AL; Costa RC; Zara FJ and Mantelatto FL 2018. Checklist of decapods (Crustacea) from the coast of the São Paulo state (Brazil) supported by integrative molecular and morphological data: I. Infraorder Caridea: families Hippolytidae, Lysmatidae, Ogyrididae, Processidae and Thoridae. Zootaxa, 4370(1): 76-94. https://doi.org/10.11646/zootaxa.4370.1.6
https://doi.org/10.11646/zootaxa.4370.1....
), Anomura (Mantelatto et al., 2021Mantelatto FL; Miranda I; Vera-Silva AL; Negri M; Buranelli RC; Terossi M … and Castilho AL 2021. Checklist of decapod crustaceans from the coast of the São Paulo State (Brazil) supported by integrative molecular and morphological data: IV. Infraorder Anomura: Superfamilies Chirostyloidea, Galatheoidea, Hippoidea and Paguroidea. Zootaxa, 4965(3): 558-600. https://doi.org/10.11646/zootaxa.4965.3.9 ), Brachyura (Mantelatto et al., 2020Mantelatto FL; Tamburus AF; Magalhães T; Buranelli RC; Terossi M; Negri M; Castilho AL; Costa RC and Zara FJ 2020. Checklist of decapod crustaceans from the coast of the São Paulo state (Brazil) supported by integrative molecular and morphological data: III. Infraorder Brachyura Latreille, 1802. Zootaxa, 4872(1): 1-108. https://doi.org/10.11646/zootaxa.4872.1.1
https://doi.org/10.11646/zootaxa.4872.1....
), and shrimp-like decapods (Mantelatto et al., 2022Mantelatto FL; Tamburus AF; Carvalho-Batista A; Rossi N; Buranelli RC; Pantaleão JÁ; Teles JN … and Costa RC 2022. Checklist of decapod crustaceans from the coast of the São Paulo state (Brazil) supported by integrative molecular and morphological data: V. Dendrobranchiata and Pleocyemata [Achelata, Astacidea, Axiidea, Caridea (Alpheoidea and Processoidea excluded), Gebiidea, Stenopodidea]. Zootaxa, 5121(1): 1-74. https://doi.org/10.11646/zootaxa.5121.1.1
https://doi.org/10.11646/zootaxa.5121.1....
); in Ceará (Pachelle et al., 2016Pachelle PPG; Anker A, Mendes CB and Bezerra LEA 2016. Decapod crustaceans from the state of Ceará, northeastern Brazil: an updated checklist of marine and estuarine species, with 23 new records. Zootaxa, 4131(1): 1-63. https://doi.org/10.11646/zootaxa.4131.1.1
https://doi.org/10.11646/zootaxa.4131.1....
), Bahia (Almeida and Coelho, 2008Almeida AO and Coelho PA 2008. Estuarine and marine brachyuran crabs (Crustacea: Decapoda) from Bahia, Brazil: checklist and zoogeographical considerations. Latin American Journal of Aquatic Research, 36(2): 183-222. https://doi.org/10.3856/vol36-issue2-fulltext-4
https://doi.org/10.3856/vol36-issue2-ful...
; Almeida et al., 2013Almeida AO; Terossi M; Araújo-Silva CL and Mantelatto FL 2013. Description of Alpheus buckupi spec. nov., a new amphi-Atlantic snapping shrimp (Caridea: Alpheidae), based on morphological and molecular data. Zootaxa, 3652(4): 437-452. https://doi.org/10.11646/zootaxa.3652.4.3
https://doi.org/10.11646/zootaxa.3652.4....
), and Santa Catarina (Boos et al., 2012Boos H; Buckup GB; Buckup L; Araujo PB; Magalhães C; Almerão MP, Santos RA and Mantelatto FL 2012. Checklist of the Crustacea from the state of Santa Catarina, Brazil. Check List, 8(6): 1020-1046. https://doi.org/10.15560/8.6.1020
https://doi.org/10.15560/8.6.1020...
). Also, by larger regions (Coelho Filho, 2006Coelho Filho PA 2006. Checklist of the Decapods (Crustacea) from the outer continental shelf and seamounts from Northeast of Brazil - REVIZEE Program (NE III). Zootaxa, 1184(1): 1-27. https://doi.org/10.11646/zootaxa.1184.1.1
https://doi.org/10.11646/zootaxa.1184.1....
; Coelho et al., 2008Coelho PA; Almeida AO and Bezerra LEA 2008. Checklist of the marine and estuarine Brachyura (Crustacea: Decapoda) of northern and northeastern Brazil. Zootaxa, 1956(1): 1-58. https://doi.org/10.11646/zootaxa.1956.1.1
https://doi.org/10.11646/zootaxa.1956.1....
; Lima and Martinelli-Lemos, 2019Lima FA and Martinelli-Lemos JM 2019. Checklist of the Brachyura of the Brazilian Amazon Coastal Zone and knowledge status of their larval development. Zootaxa, 4646(2): 301-321. https://doi.org/10.11646/zootaxa.4646.2.6
https://doi.org/10.11646/zootaxa.4646.2....
) and oceanic islands, such as Fernando de Noronha (Alves et al., 2008Alves MDL; Ramos-Porto M and Viana GFS 2008. Checklist of the decapods (Crustacea) from the Fernando de Noronha Archipelago, Brazil. Zootaxa, 1881(1): 43-68. https://doi.org/10.11646/zootaxa.1881.1.2
https://doi.org/10.11646/zootaxa.1881.1....
) and Vitória Archipelagos (Alves et al., 2012Alves D; Lima D; Barros-Alves S; Cobo V and Fransozo A 2012. Checklist of the brachyuran crabs (Crustacea: Decapoda) in the rocky subtidal of Vitória Archipelago, southeast coast of Brazil. Check List, 8(5): 940-950. https://doi.org/10.15560/8.5.940
https://doi.org/10.15560/8.5.940...
). Finally, several sporadic records and range extensions or decapods new occurrences along the Brazilian coast have been registered in the last decade (see Almeida et al., 2012Almeida AO; Simões SM; Costa RC and Mantelatto FL 2012. Alien shrimps in evidence: new records of the genus Athanas Leach, 1814 on the coast of São Paulo, southern Brazil (Caridea: Alpheidae). Helgoland Marine Research, 66(4): 557-565. https://doi.org/10.1007/s10152-012-0291-6
https://doi.org/10.1007/s10152-012-0291-...
; Alves-Junior et al., 2017Alves- Junior FD; Araújo MSLC and Souza- Filho JF 2017. New records of deep-sea shrimps of family Solenoceridae Wood-Mason and Alcock, 1891 (Crustacea: Decapoda: Dendrobranchiata) from Southwestern Atlantic. Zootaxa, 4254(4): 473-484. https://doi.org/10.11646/zootaxa.4254.4.4
https://doi.org/10.11646/zootaxa.4254.4....
; 2019Alves- Junior FDA; Lucatelli D; Santana W and De Souza- Filho JF 2019. First record of two rare spider crabs (Crustacea: Decapoda: Brachyura: Majoidea) from Brazil. Zootaxa, 4688(1): 111-118. https://doi.org/10.11646/zootaxa.4688.1.6
https://doi.org/10.11646/zootaxa.4688.1....
; Tamburus et al., 2020Tamburus AF; França NFC and Mantelatto FL 2019. First record of the box crab Cryptosoma balguerii (Desbonne, in Desbonne and Schramm, 1867) (Brachyura: Calappidae) from São Paulo, Brazil revealed by DNA markers. Nauplius, 27: e2019022. https://doi.org/10.1590/2358-2936e2019022
https://doi.org/10.1590/2358-2936e201902...
). This increase of occurrences is a key condition for taxonomic and biota studies and results from a tremendous effort and actions of different researchers of the Brazilian carcinology community, including collaborative works and stimulus to new groups of researchers to work on regional inventories (Mantelatto et al., 2022Mantelatto FL; Tamburus AF; Carvalho-Batista A; Rossi N; Buranelli RC; Pantaleão JÁ; Teles JN … and Costa RC 2022. Checklist of decapod crustaceans from the coast of the São Paulo state (Brazil) supported by integrative molecular and morphological data: V. Dendrobranchiata and Pleocyemata [Achelata, Astacidea, Axiidea, Caridea (Alpheoidea and Processoidea excluded), Gebiidea, Stenopodidea]. Zootaxa, 5121(1): 1-74. https://doi.org/10.11646/zootaxa.5121.1.1
https://doi.org/10.11646/zootaxa.5121.1....
).

It is also worth highlighting the importance of molecular markers as powerful tools for the identification of some species (Mantelatto et al., 2018Mantelatto FL; Terossi M; Negri M; Buranelli RC; Robles R; Magalhães T and Miyazaki MJ 2018. DNA sequence database as a tool to identify decapod crustaceans on the São Paulo coastline. Mitochondrial DNA Part A, 29(5): 805-815. https://doi.org/10.1080/24701394.2017.1365848
https://doi.org/10.1080/24701394.2017.13...
), especially those with cryptic species or species complexes. Genetic sequence analysis allows the identification of species that are fixed in ethanol and lose some morphological characteristics, such as color patterns (essential for morphological identification of snapping shrimps, for example). In addition, it helps non-specialist researchers not make morphological misidentifications of species that have peculiar and difficult to categorize characteristics. We also emphasize the critical importance of depositing collected specimens in scientific collections and genetic sequences in online platforms for possible future checks and comparisons.

ACKNOWLEDGEMENTS

We are very grateful to Dr. Nielson França for his help during fieldwork, Dr. Jorge Nunes for his guidance on collection sites on São Luís Island, and Dr. Gabriel Bochini for his help on morphology and taxonomic aspects. Our thanks to anonymous reviewers and Editor for their suggestions to improve the quality of this manuscript during the review process.

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  • Author Contributions

    Conceptualization and Design: JNT, FLM. Performed research: JNT, FLM. Acquisition of data: JNT. Analysis and interpretation of data: JNT, FLM. Preparation of figures/tables/maps: JNT. Writing - original draft: JNT. Writing - critical review & editing: FLM. Obtained licence for collection and genetic access, and funding acquisition: FLM.
  • Consent for publication

    All authors declare that they have reviewed the content of the manuscript and gave their consent to submit the document.
  • Data availability

    All study data are included in the article.
  • Funding and grant discloures

    This research is part of a multidisciplinary long-term project aiming to access the Brazilian decapod biodiversity with support provided by the Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) (Projeto Temático Biota INTERCRUSTA 2018/13685-5; Coleções Científicas 2009/54931-0 and PROTAX 2016/50376-5, 2021/08075-6) and Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) for the funding of the collections (PQ 302253/2019-0) and the PhD scholarship of JT (Proc.140957/2020-0).
  • Study association

    Nothing to declare.
  • Study permits

    The collections of species conducted in this study complied with current applicable state and federal laws of Brazil (permanent license to FLM for collection of Zoological Material No. 11777-2 MMA/IBAMA/SISBIO and SISGEN registration numbers CCDB = CEA7CD5 and genetic sequences = AE1F319, AE1F319).

Edited by

Associate Editor:

Kristin Hultgren

Data availability

All study data are included in the article.

Publication Dates

  • Publication in this collection
    13 Nov 2023
  • Date of issue
    2023

History

  • Received
    13 Sept 2022
  • Accepted
    08 Mar 2023
Sociedade Brasileira de Carcinologia Instituto de Biociências, UNESP, Campus Botucatu, Rua Professor Doutor Antônio Celso Wagner Zanin, 250 , Botucatu, SP, 18618-689 - Botucatu - SP - Brazil
E-mail: editor.nauplius@gmail.com