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Santos DC, Oliveira LS, Silva FKS, Cajado RA, Zacardi DM. Early ontogeny of the freshwater fish Rhytiodus microlepis (Characiformes, Anostomidae) from the Amazon basin. JOURNAL OF FISH BIOLOGY 2024; 104:1339-1349. [PMID: 38316148 DOI: 10.1111/jfb.15659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 12/06/2023] [Accepted: 01/02/2024] [Indexed: 02/07/2024]
Abstract
The early development of the freshwater fish Rhytiodus microlepis is characterized by the description of external morphological, meristic, and morphometric changes, as well as the growth patterns, thereby establishing a reference for the identification of its larvae and juveniles. Specimens were collected from the Amazon river channel and floodplain. Ninety-seven individuals were analysed with standard length varying between 4.31 and 79.23 mm. Rhytiodus microlepis larvae are altricial, with an elongated and fusiform body, anal opening reaching the middle region of the body, and simple nostrils becoming double and tubular during development. The pigments vary from one to two chromatophores in the dorsal region of the head in pre-flexion and flexion, but later the pigmentation pattern intensifies, transverse bands appear along the body, and a conspicuous spot appears in the basal region of the caudal fin. The total number of myomeres ranges from 49 to 50. During the transition from larval (post-flexion) to the juvenile periods, the most significant anatomical changes occur, such as the presence of all fins and increased body pigmentation. Integrated myomere count and pigmentation pattern are effective for the correct identification of the initial life stages of R. microlepis from the Amazon basin. Our results expand the knowledge about the early life history of Neotropical freshwater fish species.
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Affiliation(s)
- Darliane C Santos
- Laboratório de Ecologia do Ictioplâncton e Pesca em Águas Interiores, Instituto de Ciências e Tecnologia das Águas, Universidade Federal do Oeste do Pará, Santarém, Brazil
- Programa de Pós-Graduação em Biodiversidade, Universidade Federal do Oeste do Pará, Santarém, Brazil
| | - Lucas S Oliveira
- Laboratório de Ecologia do Ictioplâncton e Pesca em Águas Interiores, Instituto de Ciências e Tecnologia das Águas, Universidade Federal do Oeste do Pará, Santarém, Brazil
- Programa de Pós-Graduação em Ecologia, Universidade Federal do Pará, Belém, Brazil
| | - Fabíola K S Silva
- Laboratório de Ecologia do Ictioplâncton e Pesca em Águas Interiores, Instituto de Ciências e Tecnologia das Águas, Universidade Federal do Oeste do Pará, Santarém, Brazil
- Programa de Pós-Graduação em Biodiversidade, Universidade Federal do Oeste do Pará, Santarém, Brazil
| | - Ruineris A Cajado
- Laboratório de Ecologia do Ictioplâncton e Pesca em Águas Interiores, Instituto de Ciências e Tecnologia das Águas, Universidade Federal do Oeste do Pará, Santarém, Brazil
- Programa de Pós-Graduação em Ecologia Aquática e Pesca, Núcleo de Ecologia Aquática e Pesca, Universidade Federal do Pará, Belém, Brazil
| | - Diego M Zacardi
- Laboratório de Ecologia do Ictioplâncton e Pesca em Águas Interiores, Instituto de Ciências e Tecnologia das Águas, Universidade Federal do Oeste do Pará, Santarém, Brazil
- Programa de Pós-Graduação em Biodiversidade, Universidade Federal do Oeste do Pará, Santarém, Brazil
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Nascimento MHS, Aragão DG, Silva JLN, Lima RC, Birindelli JLO, Fraga EC, Barros MC. The DNA barcode reveals cryptic diversity and a new record for the genus Leporinus (Characiformes, Anostomidae) in the hydrographic basins of central northern Brazil. PeerJ 2023; 11:e15184. [PMID: 37250713 PMCID: PMC10225125 DOI: 10.7717/peerj.15184] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 03/15/2023] [Indexed: 05/31/2023] Open
Abstract
Leporinus is one of the most speciose genera of the order Characiformes, with 81 valid species distributed throughout much of Central and South America. The considerable diversity of this genus has generated extensive debate on its classification and internal arrangement. In the present study, we investigated the species diversity of the genus Leporinus in central northern Brazil, and conclude that six valid species-Leporinus maculatus, Leporinus unitaeniatus, Leporinus affinis, Leporinus venerei, Leporinus cf. friderici, and Leporinus piau-are found in the hydrographic basins of the Brazilian states of Maranhão, Piauí, and Tocantins. We analyzed 182 sequences of the Cytochrome Oxidase subunit I gene, of which, 157 were obtained from Leporinus specimens collected from the basins of the Itapecuru, Mearim, Turiaçu, Pericumã, Periá, Preguiças, Parnaíba, and Tocantins rivers. The species delimitation analyses, based on the ABGD, ASAP, mPTP, bPTP, and GMYC methods, revealed the presence of four distinct molecular operational taxonomic units (MOTUs), identified as L. maculatus, L. unitaeniatus, L. affinis, and L. piau (from the Parnaíba River). The bPTP method restricted L. venerei to a single MOTU, and confirmed the occurrence of this species in the rivers of Maranhão for the first time. The separation of L. cf. friderici into two clades and the subsequent formation of different operational taxonomic units was consistent with polyphyly in this species, which indicates the existence of cryptic diversity. The arrangement of L. cf. friderici and L. piau in two different clades supports the conclusion that the L. piau specimens from Maranhão were misidentified, based on their morphological traits, reflecting the taxonomic inconsistencies that exist among morphologically similar species. Overall, then, the species delimitation methods employed in the present study indicated the presence of six MOTUs-L. maculatus, L. unitaenitus, L. affinis, L. cf. friderici, L. venerei, and L. piau. In the case of two other MOTUs identified in the present study, one (L. venerei) is a new record for the state of Maranhão, and we believe that the other represents a population of L. piau from the basin of the Parnaíba River.
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Affiliation(s)
- Maria Histelle Sousa Nascimento
- Department of Chemistry and Biology, Maranhão State University, Caxias, Maranhão, Brazil
- Graduate Network Program in the Biodiversity and Biotechnology of Legal Amazonia, Biological Sciences Institute, Belem, Pará, Brazil
| | - Deborah Gaído Aragão
- Department of Chemistry and Biology, Maranhão State University, Caxias, Maranhão, Brazil
| | | | - Renato Correia Lima
- Graduate Program in Genetics, Conservation, and Evolutionary Biology, National Amazonian Research Institute, Manaus, Amazonas, Brazil
| | | | - Elmary Costa Fraga
- Department of Chemistry and Biology, Maranhão State University, Caxias, Maranhão, Brazil
| | - Maria Claudene Barros
- Department of Chemistry and Biology, Maranhão State University, Caxias, Maranhão, Brazil
- Graduate Network Program in the Biodiversity and Biotechnology of Legal Amazonia, Biological Sciences Institute, Belem, Pará, Brazil
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Barros F, Silva L, Dias J, Abe H, Paixão P, Sousa N, Cordeiro C, Fujimoto R. In vitro selection of autochthonous bacterium with probiotic potential for the neotropical fish piauçu Megaleporinus microcephalus. ARQ BRAS MED VET ZOO 2022. [DOI: 10.1590/1678-4162-12404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
ABSTRACT The study aimed to isolate, identify, and apply in vitro tests on bacteria with autochthonous probiotic potential isolated from fifteen healthy specimens of Megaleporinus macrocephalus. The strains were selected from the intestinal tract of fish and inoculated in the Petri plate containing Sharp Man Rogosa Agar (MRS) for (48 hours at 35ºC). They were isolated based on a test of catalase, Gram stain, tolerance to different gradients NaCl (1, 2 and 3%), pH (4, 5, 6, 8 and 9) values and bile salts (2.5 and 5%), in addition to the inhibition zone against pathogens. Of the 42 strains isolated, ST1 and ST9 had higher values (p<0.05) for total viable cells (31.80±0.07 and 32.51±0.05 CFU/mL × 108) respectively. In the resistance tests, strains ST1 and ST9 presented the best results, with emphasis on ST9 in the gradients of pH, high values of bile salts and larger inhibition zones against Aeromonas hydrophila and Aeromonas jandaei. The strains with the best results in the tests, ST1 and ST9, were identified by the MALDI-TOF-MS method as Enterococcus faecium. Thus, the isolated E. faecium bacteria, may be recommended as for probiotic use in farming the M. macrocephalus.
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Affiliation(s)
| | | | | | - H.A. Abe
- Universidade Federal do Pará, Brazil
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Carrillo-Briceño JD, Sánchez R, Scheyer TM, Carrillo JD, Delfino M, Georgalis GL, Kerber L, Ruiz-Ramoni D, Birindelli JLO, Cadena EA, Rincón AF, Chavez-Hoffmeister M, Carlini AA, Carvalho MR, Trejos-Tamayo R, Vallejo F, Jaramillo C, Jones DS, Sánchez-Villagra MR. A Pliocene-Pleistocene continental biota from Venezuela. SWISS JOURNAL OF PALAEONTOLOGY 2021; 140:9. [PMID: 34721281 PMCID: PMC8550326 DOI: 10.1186/s13358-020-00216-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 12/25/2020] [Indexed: 06/13/2023]
Abstract
The Pliocene-Pleistocene transition in the Neotropics is poorly understood despite the major climatic changes that occurred at the onset of the Quaternary. The San Gregorio Formation, the younger unit of the Urumaco Sequence, preserves a fauna that documents this critical transition. We report stingrays, freshwater bony fishes, amphibians, crocodiles, lizards, snakes, aquatic and terrestrial turtles, and mammals. A total of 49 taxa are reported from the Vergel Member (late Pliocene) and nine taxa from the Cocuiza Member (Early Pleistocene), with 28 and 18 taxa reported for the first time in the Urumaco sequence and Venezuela, respectively. Our findings include the first fossil record of the freshwater fishes Megaleporinus, Schizodon, Amblydoras, Scorpiodoras, and the pipesnake Anilius scytale, all from Pliocene strata. The late Pliocene and Early Pleistocene ages proposed here for the Vergel and Cocuiza members, respectively, are supported by their stratigraphic position, palynology, nannoplankton, and 86Sr/88Sr dating. Mammals from the Vergel Member are associated with the first major pulse of the Great American Biotic Interchange. In contrast to the dry conditions prevailing today, the San Gregorio Formation documents mixed open grassland/forest areas surrounding permanent freshwater systems, following the isolation of the northern South American basin from western Amazonia. These findings support the hypothesis that range contraction of many taxa to their current distribution in northern South America occurred rapidly during at least the last 1.5 million years.
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Affiliation(s)
- Jorge D. Carrillo-Briceño
- Universität Zürich, Paläontologisches Institut und Museum, Karl-Schmid-Straße 4, 8006 Zurich, Switzerland
| | - Rodolfo Sánchez
- Museo Paleontológico de Urumaco, Calle Bolívar s/n, Urumaco, Estado Falcón Venezuela
| | - Torsten M. Scheyer
- Universität Zürich, Paläontologisches Institut und Museum, Karl-Schmid-Straße 4, 8006 Zurich, Switzerland
| | - Juan D. Carrillo
- CR2P, Muséum National d’Histoire Naturelle, CNRS, Sorbonne Université, 8 Rue Buffon, 75005 Paris, France
- Gothenburg Global Biodiversity Centre, Carl Skottsbergs gata 22B, 41319 Gothenburg, Sweden
| | - Massimo Delfino
- Dipartimento di Scienze della Terra, Università di Torino, Via Valperga Caluso 35, 10125 Torino, Italy
- Institut Català de Paleontologia Miquel Crusafont, Universitat Autònoma de Barcelona, Edifici ICTA/ICP, c/Columnes s/n, Campus de la UAB, 08193 Cerdanyola del Vallès, Barcelona Spain
| | - Georgios L. Georgalis
- Universität Zürich, Paläontologisches Institut und Museum, Karl-Schmid-Straße 4, 8006 Zurich, Switzerland
| | - Leonardo Kerber
- Centro de Apoio à Pesquisa Paleontológica da Quarta Colônia (CAPPA), Universidade Federal de Santa Maria (UFSM), São João do Polêsine, Rio Grande do Sul Brazil
- Museu Paraense Emílio Goeldi, Coordenação de Ciências da Terra e Ecologia, Belém, PA Brazil
| | - Damián Ruiz-Ramoni
- Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja (CRILAR), Provincia de La Rioja, CONICET, UNLaR, SEGEMAR, UNCa, Entre Ríos y Mendoza s/n, 5301 Anillaco, La Rioja, Argentina
| | - José L. O. Birindelli
- Departamento de Biologia Animal e Vegetal, Universidade Estadual de Londrina, Londrina, Brazil
| | - Edwin-Alberto Cadena
- Grupo de Investigación Paleontología Neotropical Tradicional y Molecular (PaleoNeo), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia
- Smithsonian Tropical Research Institute, Apartado, 0843-03092 Balboa, Ancón Panama
| | - Aldo F. Rincón
- Departamento de Física y Geociencias, Universidad del Norte, Km. 5 Vía Puerto Colombia, Barranquilla, Colombia
| | - Martin Chavez-Hoffmeister
- Laboratorio de Paleontología, Instituto de Ciencias de La Tierra, Universidad Austral de Chile, Valdivia, Chile
| | - Alfredo A. Carlini
- Lab. Morfología Evolutiva Desarrollo (MORPHOS), and División Paleontología de Vertebrados, Museo de La Plata, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, Paseo del Bosque s/n, B1900FWA La Plata, Argentina
| | - Mónica R. Carvalho
- Smithsonian Tropical Research Institute, Apartado, 0843-03092 Balboa, Ancón Panama
| | - Raúl Trejos-Tamayo
- Instituto de Investigaciones en Estratigrafía (IIES), Universidad de Caldas, Calle 65 #26-10, Manizales, Colombia
- Departamento de Geología, Universidad de Salamanca, 37008 Salamanca, Spain
| | - Felipe Vallejo
- Instituto de Investigaciones en Estratigrafía (IIES), Universidad de Caldas, Calle 65 #26-10, Manizales, Colombia
- Departamento de Geología, Universidad de Salamanca, 37008 Salamanca, Spain
| | - Carlos Jaramillo
- Smithsonian Tropical Research Institute, Apartado, 0843-03092 Balboa, Ancón Panama
- Departamento de Geología, Universidad de Salamanca, 37008 Salamanca, Spain
- ISEM, U. Montpellier, CNRS, EPHE, IRD, Montpellier, France
| | - Douglas S. Jones
- Florida Museum of Natural History, University of Florida, Gainesville, FL 32611 USA
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Birindelli JLO, Melo BF, Ribeiro-Silva LR, Diniz D, Oliveira C. A New Species of Hypomasticus from Eastern Brazil Based on Morphological and Molecular Data (Characiformes, Anostomidae). COPEIA 2020. [DOI: 10.1643/ci-19-335] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- José L. O. Birindelli
- Museu de Zoologia, Departamento de Biologia Animal e Vegetal, Universidade Estadual de Londrina, Caixa Postal 10011, 86057-970 Londrina, PR, Brazil; . Send reprint requests to this address
| | - Bruno F. Melo
- Departamento de Biologia Estrutural e Funcional, Instituto de Biociências, Universidade Estadual Paulista, R. Prof. Dr. Antonio C. W. Zanin 250, 18618-689 Botucatu, SP, Brazil; (BFM) ; (LRRS) ; and (CO)
| | - Luís R. Ribeiro-Silva
- Departamento de Biologia Estrutural e Funcional, Instituto de Biociências, Universidade Estadual Paulista, R. Prof. Dr. Antonio C. W. Zanin 250, 18618-689 Botucatu, SP, Brazil; (BFM) ; (LRRS) ; and (CO)
| | - Debora Diniz
- Departamento de Ciências Biológicas, Universidade Estadual do Sudoeste da Bahia, R. José Moreira Sobrinho s/n, 45208-091 Jequié, BA, Brazil;
| | - Claudio Oliveira
- Departamento de Biologia Estrutural e Funcional, Instituto de Biociências, Universidade Estadual Paulista, R. Prof. Dr. Antonio C. W. Zanin 250, 18618-689 Botucatu, SP, Brazil; (BFM) ; (LRRS) ; and (CO)
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