Record of <i>Caromiobenella</i> (Copepoda, Monstrilloida) in Brazil and Discovery of the Male of <i>C. brasiliensis</i>: Morphological and Molecular Evidence
Monstrilloid copepods are protelean parasites with a complex life cycle that includes an endoparasitic juvenile phase and free-living early naupliar and adult phases. The monstrilloid copepod genus <i>Caromiobenella</i> Jeon, Lee and Soh, 2018 is known to contain nine species, each one w...
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MDPI AG
2021-05-01
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| author | Judson da Cruz Lopes da Rosa Cristina de Oliveira Dias Eduardo Suárez-Morales Laura Isabel Weber Luciano Gomes Fischer |
| author_facet | Judson da Cruz Lopes da Rosa Cristina de Oliveira Dias Eduardo Suárez-Morales Laura Isabel Weber Luciano Gomes Fischer |
| author_sort | Judson da Cruz Lopes da Rosa |
| collection | DOAJ |
| description | Monstrilloid copepods are protelean parasites with a complex life cycle that includes an endoparasitic juvenile phase and free-living early naupliar and adult phases. The monstrilloid copepod genus <i>Caromiobenella</i> Jeon, Lee and Soh, 2018 is known to contain nine species, each one with a limited distribution; except for two species, members of this widespread genus are known exclusively from males. Hitherto, members of <i>Caromiobenella</i> have not been recorded from tropical waters of the South Western Atlantic (SWA). The nominal species <i>Monstrilla brasiliensis</i> Dias and Suárez-Morales, 2000 was originally described from female specimens collected in coastal waters of Espírito Santo and Rio de Janeiro (Brazil), but the male remained unknown. The failure to reliably link both sexes of monstrilloid species is one of the main problems in the current taxonomy of the group, thus leading to a separate treatment for each sex. New zooplankton collections in coastal waters and intertidal rocky pools of the SWA yielded several male and female monstrilloid copepods tentatively identified as <i>Monstrilla brasiliensis</i>. Our results of both morphologic and molecular (mtCOI) analyses allowed us to confirm that these males and females were conspecific. We also found evidence suggesting that <i>Caromiobenella</i> is not a monophyletic taxon. Our male specimens are morphologically assignable to <i>Caromiobenella</i>, therefore, females of the nominal species <i>Monstrilla brasiliensis</i>, are matched here with the aforementioned males and, thus, the species should be known as <i>C. brasiliensis</i> comb. nov. (Dias and Suárez-Morales, 2000). This finding represents the third documented discovery of a female of <i>Caromiobenella</i>, the first record of the genus in the Southwestern Atlantic, and the first documented record of monstrilloids from coastal tidepools. With the addition of <i>C. brasiliensis</i>, <i>Caromiobenella</i> now includes 10 valid species worldwide. This work represents the second successful use of molecular methods to link both sexes of a monstrilloid copepod. The male of <i>C. brasiliensis</i> is herein described, and a key to the known species of <i>Caromiobenella</i> and data on the habitat and local abundance of <i>C. brasiliensis</i> are also provided. |
| first_indexed | 2024-03-10T10:51:43Z |
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| last_indexed | 2024-03-10T10:51:43Z |
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| spelling | doaj.art-7924bf6846f64d80a876255c8cb369712023-11-21T22:12:49ZengMDPI AGDiversity1424-28182021-05-0113624110.3390/d13060241Record of <i>Caromiobenella</i> (Copepoda, Monstrilloida) in Brazil and Discovery of the Male of <i>C. brasiliensis</i>: Morphological and Molecular EvidenceJudson da Cruz Lopes da Rosa0Cristina de Oliveira Dias1Eduardo Suárez-Morales2Laura Isabel Weber3Luciano Gomes Fischer4Programa de Pós-Graduação em Ciências Ambientais e Conservação (PPG-CiAC), Universidade Federal do Rio de Janeiro (UFRJ), Macaé, Rio de Janeiro, RJ 27965-045, BrazilLaboratório Integrado de Zooplâncton e Ictioplâncton or Programa de Engenharia Ambiental-PEA, Departa-mento de Zoologia, Instituto de Biologia, Escola Politécnica, Universidade Federal do Rio de Janeiro (UFRJ), Cidade Universitária, Rio de Janeiro, RJ 21941-590, BrazilEl Colegio de la Frontera Sur (ECOSUR), Av. Centenario Km. 5.5, Chetumal, Quintana Roo 77014, MexicoInstituto de Biodiversidade e Sustentabilidade (NUPEM), Universidade Federal do Rio de Janeiro (UFRJ), Macaé, Rio de Janeiro, RJ 27965-045, BrazilPrograma de Pós-Graduação em Ciências Ambientais e Conservação (PPG-CiAC), Universidade Federal do Rio de Janeiro (UFRJ), Macaé, Rio de Janeiro, RJ 27965-045, BrazilMonstrilloid copepods are protelean parasites with a complex life cycle that includes an endoparasitic juvenile phase and free-living early naupliar and adult phases. The monstrilloid copepod genus <i>Caromiobenella</i> Jeon, Lee and Soh, 2018 is known to contain nine species, each one with a limited distribution; except for two species, members of this widespread genus are known exclusively from males. Hitherto, members of <i>Caromiobenella</i> have not been recorded from tropical waters of the South Western Atlantic (SWA). The nominal species <i>Monstrilla brasiliensis</i> Dias and Suárez-Morales, 2000 was originally described from female specimens collected in coastal waters of Espírito Santo and Rio de Janeiro (Brazil), but the male remained unknown. The failure to reliably link both sexes of monstrilloid species is one of the main problems in the current taxonomy of the group, thus leading to a separate treatment for each sex. New zooplankton collections in coastal waters and intertidal rocky pools of the SWA yielded several male and female monstrilloid copepods tentatively identified as <i>Monstrilla brasiliensis</i>. Our results of both morphologic and molecular (mtCOI) analyses allowed us to confirm that these males and females were conspecific. We also found evidence suggesting that <i>Caromiobenella</i> is not a monophyletic taxon. Our male specimens are morphologically assignable to <i>Caromiobenella</i>, therefore, females of the nominal species <i>Monstrilla brasiliensis</i>, are matched here with the aforementioned males and, thus, the species should be known as <i>C. brasiliensis</i> comb. nov. (Dias and Suárez-Morales, 2000). This finding represents the third documented discovery of a female of <i>Caromiobenella</i>, the first record of the genus in the Southwestern Atlantic, and the first documented record of monstrilloids from coastal tidepools. With the addition of <i>C. brasiliensis</i>, <i>Caromiobenella</i> now includes 10 valid species worldwide. This work represents the second successful use of molecular methods to link both sexes of a monstrilloid copepod. The male of <i>C. brasiliensis</i> is herein described, and a key to the known species of <i>Caromiobenella</i> and data on the habitat and local abundance of <i>C. brasiliensis</i> are also provided.https://www.mdpi.com/1424-2818/13/6/241Brazilintegrative taxonomymonstrilloid copepodsnew recordparasitic copepods tropical zooplankton |
| spellingShingle | Judson da Cruz Lopes da Rosa Cristina de Oliveira Dias Eduardo Suárez-Morales Laura Isabel Weber Luciano Gomes Fischer Record of <i>Caromiobenella</i> (Copepoda, Monstrilloida) in Brazil and Discovery of the Male of <i>C. brasiliensis</i>: Morphological and Molecular Evidence Diversity Brazil integrative taxonomy monstrilloid copepods new record parasitic copepods tropical zooplankton |
| title | Record of <i>Caromiobenella</i> (Copepoda, Monstrilloida) in Brazil and Discovery of the Male of <i>C. brasiliensis</i>: Morphological and Molecular Evidence |
| title_full | Record of <i>Caromiobenella</i> (Copepoda, Monstrilloida) in Brazil and Discovery of the Male of <i>C. brasiliensis</i>: Morphological and Molecular Evidence |
| title_fullStr | Record of <i>Caromiobenella</i> (Copepoda, Monstrilloida) in Brazil and Discovery of the Male of <i>C. brasiliensis</i>: Morphological and Molecular Evidence |
| title_full_unstemmed | Record of <i>Caromiobenella</i> (Copepoda, Monstrilloida) in Brazil and Discovery of the Male of <i>C. brasiliensis</i>: Morphological and Molecular Evidence |
| title_short | Record of <i>Caromiobenella</i> (Copepoda, Monstrilloida) in Brazil and Discovery of the Male of <i>C. brasiliensis</i>: Morphological and Molecular Evidence |
| title_sort | record of i caromiobenella i copepoda monstrilloida in brazil and discovery of the male of i c brasiliensis i morphological and molecular evidence |
| topic | Brazil integrative taxonomy monstrilloid copepods new record parasitic copepods tropical zooplankton |
| url | https://www.mdpi.com/1424-2818/13/6/241 |
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