Neotropical Ichthyology最新文献_第5页

A new species of Leporinus (Characiformes: Anostomidae) from the Serra do Cachimbo, Pará State, Brazil 文章标题巴西帕尔<e:1>州卡辛博山狐尾虫属一新种(特征:狐尾虫科)

4区生物学

Neotropical Ichthyology Pub Date : 2023-01-01 DOI: 10.1590/1982-0224-2023-0058

Ian Solon Bortoloci Ito, Lenice Souza-Shibatta, Marcos Venturieri, José L. O. Birindelli

引用次数: 0

A new species of armored catfish of the genus Scobinancistrus (Loricariidae: Hypostominae) from the Xingu River basin, Brazil 文章标题巴西新古河流域鳞鳞鲶鱼属一新种(鳞鳞鱼科:鳞鳞鲶鱼科)

4区生物学

Neotropical Ichthyology Pub Date : 2023-01-01 DOI: 10.1590/1982-0224-2023-0038

Mateus S. Chaves, Renildo R. Oliveira, Alany P. Gonçalves, Leandro M. Sousa, Lúcia H. Rapp Py-Daniel

引用次数: 0

A new genus and species of miniature tridentine catfish from the Amazon basin (Siluriformes: Trichomycteridae) 亚马逊河流域微型三角鲶鱼一新属、新种(蛭形目:毛鳞鱼科)

4区生物学

Neotropical Ichthyology Pub Date : 2023-01-01 DOI: 10.1590/1982-0224-2023-0076

Alessio Datovo, Luz Ochoa, George Vita, Paulo Presti, William M. Ohara, Mario C. C. de Pinna

{"title":"A new genus and species of miniature tridentine catfish from the Amazon basin (Siluriformes: Trichomycteridae)","authors":"Alessio Datovo, Luz Ochoa, George Vita, Paulo Presti, William M. Ohara, Mario C. C. de Pinna","doi":"10.1590/1982-0224-2023-0076","DOIUrl":"https://doi.org/10.1590/1982-0224-2023-0076","url":null,"abstract":"Abstract A new miniature tridentine catfish is described from the rio Purus drainage, Amazon basin, Brazil. It differs from all other tridentines in having several unique autapomorphies: conspicuous anteromedial protuberance in the snout; set of symphyseal premaxillary and dentary teeth inclined posteromedially; distal process of the hyomandibula directed anteriorly; rod-like orbitosphenoid ossified only ventral to the optic nerve; mesethmoid cornua inclined ventrolaterally; opercular and interopercular odontodophores separated by a large interspace; basipterygia fused sagittally; and conspicuous dark brown horizontal stripe in the middle of the caudal fin. The new taxon is hypothesized to be sister to the clade formed by Tridensimilis and Tridens. A detailed osteological description of the new taxon is provided based on X-ray microcomputed tomography (µCT-scans) data and on cleared and stained specimens. Our analysis also reveals that “Tridens” brevis, an enigmatic species that has been indecisively assigned to three different tridentine genera over the past 134 years, belongs to Tridentopsis.Consequently, Tridensimilis is a monotypic genus that currently includes only T. venezuelae.","PeriodicalId":19103,"journal":{"name":"Neotropical Ichthyology","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135101748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fish injuries resulting from transient operating conditions in a Brazilian hydropower plant: morphological, physiological and biochemical evaluation in Pimelodus maculatus (Siluriformes: Pimelodidae) 巴西水电站瞬态运行条件对鱼类的伤害:斑纹扁虱的形态、生理和生化评价(鼠尾草目:扁虱科)

4区生物学

Neotropical Ichthyology Pub Date : 2023-01-01 DOI: 10.1590/1982-0224-2022-0104

Janaína dos Santos Pedron, Jurandir Joaquim Bernardes Junior, Josiane Ribolli, Jennyffer Souza, Aline Guimarães Pereira, Hugo Tolentino, Romuel Barros, Carine de Freitas Milarch, Rafael José Gonçalves Dias, Renata Maria Guereschi, Alexandra Latini, Alex Pires de Oliveira Nuñer

{"title":"Fish injuries resulting from transient operating conditions in a Brazilian hydropower plant: morphological, physiological and biochemical evaluation in Pimelodus maculatus (Siluriformes: Pimelodidae)","authors":"Janaína dos Santos Pedron, Jurandir Joaquim Bernardes Junior, Josiane Ribolli, Jennyffer Souza, Aline Guimarães Pereira, Hugo Tolentino, Romuel Barros, Carine de Freitas Milarch, Rafael José Gonçalves Dias, Renata Maria Guereschi, Alexandra Latini, Alex Pires de Oliveira Nuñer","doi":"10.1590/1982-0224-2022-0104","DOIUrl":"https://doi.org/10.1590/1982-0224-2022-0104","url":null,"abstract":"Abstract This study investigated injuries sustained by Pimelodus maculatus caused by transient operating conditions in a Brazilian hydroelectric power plant. Fish (n = 43) that inhabited the tailrace and appeared on the water surface after changes in the operating conditions were evaluated (IF). Additionally, fish (n = 10) captured using longline in the vicinity of the tailrace were used for comparisons (NF). Blood samples were evaluated for cortisol, glucose, and lactate concentrations. Tissue samples (gill, liver, brain, and muscle) were analyzed for oxidative stress biomarkers (TBARS, protein carbonyl content, and catalase activity) and histology (gill, liver, and spleen). The most prominent findings in IF were barotraumas with intra-abdominal hemorrhage and swim bladder rupture. Cortisol and glucose concentrations were lower for IF when compared to NF. IF also suffered from oxidative stress, as indicated by increased TBARS in the liver and brain, as well as increased protein carbonyl content in the gills and liver. The main histological alterations induced by the adverse conditions were circulatory disorders, such as telangiectasia and gill aneurysm, hepatic congested veins, and hemorrhage in the liver and spleen. The abrupt drop of pressure resulting from changes in the operating conditions of the turbines caused barotraumas and oxidative stress, which were the leading causes of fish mortality","PeriodicalId":19103,"journal":{"name":"Neotropical Ichthyology","volume":"138 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135102354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A new species of cloud fish of the genus Hypsolebias from Northeast Brazil (Cyprinodontiformes: Rivulidae) 巴西东北部云鱼属一新种记述(鲤形目:云鱼科)

4区生物学

Neotropical Ichthyology Pub Date : 2023-01-01 DOI: 10.1590/1982-0224-2023-0068

Telton P. A. Ramos, Dalton T. B. Nielsen, Yuri G. Abrantes, Fabio Origuela de Lira, Silvia Y. Lustosa-Costa

引用次数: 0

Phylogenetic relationships and description of two new species of Diapoma (Characidae: Stevardiinae) from the La Plata River basin 文章标题拉普拉塔河流域二新种的系统发育关系及描述

IF 1.7 4区生物学

Neotropical Ichthyology Pub Date : 2022-01-01 DOI: 10.1590/1982-0224-2021-0115

P. M. M. Ito, T. P. Carvalho, C. S. Pavanelli, J. Vanegas-Ríos, L. Malabarba

{"title":"Phylogenetic relationships and description of two new species of Diapoma (Characidae: Stevardiinae) from the La Plata River basin","authors":"P. M. M. Ito, T. P. Carvalho, C. S. Pavanelli, J. Vanegas-Ríos, L. Malabarba","doi":"10.1590/1982-0224-2021-0115","DOIUrl":"https://doi.org/10.1590/1982-0224-2021-0115","url":null,"abstract":"Abstract Herein we describe two new species of Diapoma, one from the Negro River, a tributary of the Uruguay River in Brazil and Uruguay, and one from the Iguaçu River, in Brazil and Argentina. The new species from the Negro River basin is distinguished from its congeners by the following combination of characters: a black narrow and conspicuous line restricted to the body horizontal septum, incomplete lateral line, tricuspid teeth in the inner series of the premaxilla, and a lower body depth at vertical through the dorsal-fin origin (29.3–32.8% SL in males and 27.7–33.3% SL in females). The new species from the Iguaçu River basin is distinguished from its congeners by the following combination of characters: a discontinuous lateral line, adipose fin hyaline, longer anal-fin base (26.5–32.4% SL), and a longitudinal black stripe along the median region of caudal-fin rays. Additionally, we updated the molecular phylogeny of the genus, including new sequences from these two new species and Diapoma thauma. An identification key for species of Diapoma is presented, modified from previous study.","PeriodicalId":19103,"journal":{"name":"Neotropical Ichthyology","volume":"1 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67199213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Characterization and expression of the gene glucose transporter 2 (GLUT2) in embryonic, larval and adult Bay snook Petenia splendida (Cichliformes: Cichlidae) 葡萄糖转运蛋白2 (GLUT2)基因在脾拟虾(拟虾目:拟虾科)胚胎、幼鱼和成鱼中的表达及特性研究

IF 1.7 4区生物学

Neotropical Ichthyology Pub Date : 2022-01-01 DOI: 10.1590/1982-0224-2021-0171

A. Castillo-Collado, C. Frías‐Quintana, V. Morales-García, C. Alvarez-Villagomez, G. Asencio-Alcudia, E. Peña‐Marín, Gil Martínez-Bautista, L. D. Jiménez‐Martínez, C. Álvarez‐González

{"title":"Characterization and expression of the gene glucose transporter 2 (GLUT2) in embryonic, larval and adult Bay snook Petenia splendida (Cichliformes: Cichlidae)","authors":"A. Castillo-Collado, C. Frías‐Quintana, V. Morales-García, C. Alvarez-Villagomez, G. Asencio-Alcudia, E. Peña‐Marín, Gil Martínez-Bautista, L. D. Jiménez‐Martínez, C. Álvarez‐González","doi":"10.1590/1982-0224-2021-0171","DOIUrl":"https://doi.org/10.1590/1982-0224-2021-0171","url":null,"abstract":"Abstract Bay snook (Petenia splendida) is a carnivorous cichlid species with excellent economic value in Southeast Mexico. Although this species presents an excellent potential for commercial aquaculture, the information about its nutritional, physiological, and reproductive metabolic pathways is meager. The current study focuses on the expression of glucose transporter 2 (glut2) in embryos and larvae at 5, 10, 15-, 20-, 25-, and 30-days post-hatch (dph) and in the liver, intestine, kidney, muscle, heart, testicle, gill, stomach, pancreas, and brain of adult fish. The partial sequence of glut2 was obtained, and specific qPCR primers were designed. In embryos, the expression was lower compared to larvae at 5, 15, and 20 dph. The highest expression in larvae occurred at 20 dph and the lowest at 25 and 30 dph. Maximum expression levels in adults occurred in the liver and intestine. Our results show that glut2 is expressed differentially across tissues of adult bay snook, and it fluctuates during larval development.","PeriodicalId":19103,"journal":{"name":"Neotropical Ichthyology","volume":"46 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67199714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A new dwarf armored catfish Pareiorhaphis (Loricariidae: Hypoptopomatinae) from the Uruguai River basin, Southern Brazil 文章题目巴西南部乌拉圭河流域一新种矮甲鲶鱼Pareiorhaphis(卷甲鱼科:卷甲鱼科)

IF 1.7 4区生物学

Neotropical Ichthyology Pub Date : 2022-01-01 DOI: 10.1590/1982-0224-2022-0049

Edson H. L. Pereira, R. Reis

引用次数: 0

Otolith shape analysis supports three cryptic species in the Stellifer punctatissimus complex (Acanthuriformes: Sciaenidae) 耳石形状分析支持三点星形蝶复合体的三个隐种(棘目:海螺科)

IF 1.7 4区生物学

Neotropical Ichthyology Pub Date : 2022-01-01 DOI: 10.1590/1982-0224-2022-0005

J. A. Santos, Rafael Menezes, R. Rosa, T. Ramos

{"title":"Otolith shape analysis supports three cryptic species in the Stellifer punctatissimus complex (Acanthuriformes: Sciaenidae)","authors":"J. A. Santos, Rafael Menezes, R. Rosa, T. Ramos","doi":"10.1590/1982-0224-2022-0005","DOIUrl":"https://doi.org/10.1590/1982-0224-2022-0005","url":null,"abstract":"Abstract Sciaenidae species (croakers and drums) are known for specializations in their sensory apparatus, such as otoliths and lateral line. Within this family, some Stelliferinae members remain taxonomically unresolved due to their cryptic aspects and low phenotypic disparities. Stellifer punctatissimus comprises a species complex putatively formed by three species on morphological grounds, but molecular data have indicated only two evolutionary lineages. Herein, we tested the hypothesis that this complex is composed of Stellifer gomezi (GM), S. menezesi (MN), and S. punctatissimus (PC), using the otolith shape and morphology to differentiate them. Seventy-seven sagittal otoliths (GM = 30, MN = 30, PC = 17) were photographed to outline the otolith contour by Elliptical Fourier descriptors. Ten otoliths for each group were used to detect shape variation in the sulcus acusticus through semilandmarks. Differences in otolith shape contour were recorded among the species by PERMANOVA (Pseudo-F = 4.02, df = 2, p < 0.001) and corroborated by the Linear Discriminant Analysis, which demonstrated three partially segregated groups with satisfactory re-classification rates. A larger sulcus acusticus (GM and MN), rounded projection (PC), and distinct rectangularity pattern were also recorded. Our results support the morphological hypothesis and thus contribute to narrowing the taxonomic gaps in Sciaenidae.","PeriodicalId":19103,"journal":{"name":"Neotropical Ichthyology","volume":"1 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67199911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigations into the ancestry of the Grape-eye Seabass (Hemilutjanus macrophthalmos) reveal novel limits and relationships for the Acropomatiformes (Teleostei: Percomorpha) 对葡萄眼海鲈(Hemilutjanus macrophthalmos)祖先的调查揭示了Acropomatiformes (Teleostei: Percomorpha)的新界限和关系。

IF 1.7 4区生物学

Neotropical Ichthyology Pub Date : 2022-01-01 DOI: 10.1590/1982-0224-2021-0160

W. Smith, M. J. Ghedotti, O. Domínguez‐Domínguez, C. McMahan, E. Espinoza, Rene P. Martin, M. Girard, M. P. Davis

{"title":"Investigations into the ancestry of the Grape-eye Seabass (Hemilutjanus macrophthalmos) reveal novel limits and relationships for the Acropomatiformes (Teleostei: Percomorpha)","authors":"W. Smith, M. J. Ghedotti, O. Domínguez‐Domínguez, C. McMahan, E. Espinoza, Rene P. Martin, M. Girard, M. P. Davis","doi":"10.1590/1982-0224-2021-0160","DOIUrl":"https://doi.org/10.1590/1982-0224-2021-0160","url":null,"abstract":"Abstract For 175 years, an unremarkable bass, the Grape-eye Seabass (Hemilutjanus macrophthalmos), has been known from coastal waters in the Eastern Pacific. To date, its phylogenetic placement and classification have been ignored. A preliminary osteological examination of Hemilutjanus hinted that it may have affinities with the Acropomatiformes. To test this hypothesis, we conducted a phylogenetic analysis using UCE and Sanger sequence data to study the placement of Hemilutjanus and the limits and relationships of the Acropomatiformes. We show that Hemilutjanus is a malakichthyid, and our results corroborate earlier studies that have resolved a polyphyletic Polyprionidae; accordingly, we describe Stereolepididae, new family, for Stereolepis. With these revisions, the Acropomatiformes is now composed of the: Acropomatidae; Banjosidae; Bathyclupeidae; Champsodontidae; Creediidae; Dinolestidae; Epigonidae; Glaucosomatidae; Hemerocoetidae; Howellidae; Lateolabracidae; Malakichthyidae; Ostracoberycidae; Pempheridae; Pentacerotidae; Polyprionidae; Scombropidae; Stereolepididae, new family; Symphysanodontidae; Synagropidae; and Schuettea. Finally, using our new hypothesis, we demonstrate that acropomatiforms repeatedly evolved bioluminescence and transitioned between shallow waters and the deep sea.","PeriodicalId":19103,"journal":{"name":"Neotropical Ichthyology","volume":"1 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67200025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2