Common Names: flat-hosed catfishes, long-whiskered catfishes, long-wiskered catfishes, poissons-chats Ã longues moustaches, longwhiskered catfishes, poissons-chats à longues moustaches, juiles
1. Description of the first species of Pseudoendorchis (Cestoda: Proteocephalidae) with uniloculate suckers from the pimelodid catfish Megalonema platycephalum, with comments on the taxonomic importance of the terminal vagina.
Alves PV, de Chambrier A, Scholz T
Systematic parasitology, 2021
2. Morphological and histochemical features of the digestive tract of Leiarius marmoratus (Gill, 1870).
Matheus VA, Faccioli CK, Chedid RA, Senhorini JA, Franceschini-Vicentini IB, Vicentini CA
Journal of fish biologyJ Fish BiolMorphological and histochemical features of the digestive tract of Leiarius marmoratus (Gill, 1870).1622-163110.1111/jfb.14868Leiarius marmoratus, a freshwater catfish from Pimelodidae family, shows great biological and commercial relevance because of its geographic distribution and adaptation to fish-farm. The knowledge of the morphological characteristics of the digestive tract is fundamental to the understanding of fish physiology and nutrition, which helps in the planning of diets to provide better management and success in fish farming. Thus, this work described the morphology and histochemistry of the digestive tract of L. marmoratus adults. After euthanasia, the animals were dissected for analysis of the digestive tract. The oesophagus is a short and distensive organ with longitudinal folds that allow the passage of large food, e.g., other fishes. Oesophageal mucosa layer shows a stratified epithelium with goblet cells and club cells. The secretion of goblet cells is composed of neutral and acidic mucins that are anchored in the epithelium luminal face by epithelial cells fingerprint-like microridges, lubricating the surface to facilitate the food sliding. Club cells have protein secretion that can be involved in alarm signals when epithelium is damaged and in immunological defence. The saccular stomach is highly distensible to store large food. Gastric mucosa layer is composed of epithelial cells with intense secretion of neutral mucin to protect against self-digestion of gastric juice. Cardiac and fundic regions of stomach show well-developed gastric glands composed of oxynticopeptic cells. These cells have numerous mitochondria, highlighting their intense activity in the synthesis of acid and enzymes. The intestine is divided into three regions: anterior, middle and posterior. Although it is a short tube, intestine shows longitudinal folds and microvilli of enterocytes to increase the contact surface. These folds are higher in the anterior region of the intestine, highlighting their function in digestion and absorption. Intestinal goblet cells have acidic and neutral mucins that lubricate the epithelium and aid in digestive processes. These cells increase in number towards aboral, and they are related to the protection and lubrication to expulsion of faecal bolus.© 2021 Fisheries Society of the British Isles.MatheusValquiria AparecidaVAhttps://orcid.org/0000-0001-8528-8004Department of Biochemistry and Biology Tissue, Institute of Biology, University of Campinas (UNICAMP), Campinas, Brazil.FaccioliClaudemir KuhnCKhttps://orcid.org/0000-0001-7096-6562Department of Human Anatomy, Institute of Biomedical Sciences, Federal University of Uberlândia (UFU), Uberlândia, Brazil.ChedidRenata AlariRAFaculty of Sciences, Department of Biological Sciences, São Paulo State University (UNESP), Bauru, Brazil.SenhoriniJosé AugustoJANational Center for Research and Conservation of Continental Aquatic Biodiversity ICMBio/CEPTA, Pirassununga, Brazil.Franceschini-VicentiniIrene BastosIBFaculty of Sciences, Department of Biological Sciences, São Paulo State University (UNESP), Bauru, Brazil.Aquaculture Center of UNESP, São Paulo State University (UNESP), Jaboticabal, Brazil.VicentiniCarlos AlbertoCAhttps://orcid.org/0000-0002-6816-033XFaculty of Sciences, Department of Biological Sciences, São Paulo State University (UNESP), Bauru, Brazil.Aquaculture Center of UNESP, São Paulo State University (UNESP), Jaboticabal, Brazil.eng2011/23055-0Fundação de Amparo à Pesquisa do Estado de São PauloJournal Article20210817EnglandJ Fish Biol02140550022-11120MucinsIMAnimalsCatfishesGastric MucosaGastrointestinal TractGillsMucinsanatomyhistochemistryhistologymucinmucous cellsultrastructure2021072420210317202107292021816020211120602021731920ppublish3433146910.1111/jfb.14868REFERENCES, 2021
3. Preliminary Investigations into Use of Metomidate for Euthanasia of Ornamental Fishes.
Journal of aquatic animal healthJ Aquat Anim HealthPreliminary Investigations into Use of Metomidate for Euthanasia of Ornamental Fishes.133-13810.1002/aah.10127The goals of this study were to investigate the potential use of metomidate for one-step euthanasia of ornamental fish species representing commonly sold families in the ornamental fish trade and to determine a baseline euthanasia dose for most species tested. Metomidate hydrochloride, a rapid-acting, water-soluble, nonbarbiturate hypnotic related to etomidate, was tested at various concentrations and durations for euthanasia of species representing the following freshwater and marine aquarium fish families: Apogonidae, Ariidae, Blenniidae, Callichthyidae, Characidae, Cichlidae, Cyprinidae, Gobiidae, Gyrinocheilidae, Loricariidae, Melanotaeniidae, Osphronemidae, Pimelodidae, Poeciliidae, Pomacentridae, and Pseudochromidae. Fish in each trial were euthanized as a group (n = 1). Most groups contained 10-12 fish. Some higher doses required buffering. Euthanasia was considered successful if all fish in each group did not recover after 6 h in unmedicated water. All species immediately lost buoyancy and equilibrium, dropping to the tank bottom within 1 min and ceasing ventilation typically within minutes. However, reactivity to vibration, sound, or touch was noticeable for varying time periods afterward (8-66 min), so an additional 30 min of exposure after cessation of reactivity was included as part of the protocol. Although some species (Neon Tetras Paracheirodon innesi and Australian Rainbowfish Melanotaenia australis) were euthanized at a concentration of 40 mg/L metomidate for a total exposure time of 38 min, most species tested were successfully euthanized with metomidate at a concentration of 100 mg/L, with total exposure times ranging from 35-96 min. A few catfish species (Otocinclus sp. and Bronze Corydoras Corydoras aeneus) were refractory and recovered after 100 mg/L. However, Otocinclus sp. were successfully euthanized at 250 mg/L, and Bronze Corydoras were euthanized at 1,000 mg/L. Further studies are needed to provide additional data for these and other species and families, for different water chemistry conditions, and for various biological factors to fine-tune dosing regimens.© 2021 American Fisheries Society.YanongRoy P ERPETropical Aquaculture Laboratory, Program in Fisheries and Aquatic Sciences, School of Forest, Fisheries, and Geomatics Sciences, Institute of Food and Agricultural Sciences, University of Florida, 1408 24th Street Southeast, Ruskin, Florida, 33570, USA.engJournal ArticleResearch Support, U.S. Gov't, Non-P.H.S.20210704United StatesJ Aquat Anim Health98848810899-7659Z18ZYL8Y51metomidateZ22628B598EtomidateIMAnimalsAustraliaCichlidsEtomidateanalogs & derivativesEuthanasia, AnimalFishes202103042020090820210323202176602021111260202175542ppublish3421927510.1002/aah.10127REFERENCES, 2021
4. Ontogeny of the digestive system and the profile of proteases in larvae of cachara (Pseudoplatystoma reticulatum Siluriformes: Pimelodidae) and its hybrid (Pseudoplatystoma corruscans ×?Pseudoplatystoma reticulatum).
de Mello PH, Lundstedt LM, Moraes G, Cavalheiro Araújo B, Leite Venturieri RL, Guimarães Moreira R
Journal of fish biologyJ Fish BiolOntogeny of the digestive system and the profile of proteases in larvae of cachara (Pseudoplatystoma reticulatum Siluriformes: Pimelodidae) and its hybrid (Pseudoplatystoma corruscans ×?Pseudoplatystoma reticulatum).1135-113910.1111/jfb.14771The development of the digestive system and digestive proteases was studied in cachara (Pseudoplatystoma reticulatum) and its hybrid (P. reticulatum ×?Pseudoplatystoma corruscans) during the first 25?days after fertilization. Both groups presented a fast and similar development of the digestive system, and the unspecific alkaline protease profile suggested that the digestive capacity of hybrid larvae is higher than that of cachara after the last half of the studied phase. The activities of trypsin and chymotrypsin were similar and observed since the oocyte. These observations suggested that cachara and its hybrid has similar digestive capacity and digestive system development.© 2021 Fisheries Society of the British Isles.de MelloPaulo HenriquePHhttps://orcid.org/0000-0003-3815-2504Centro de Aquicultura da Universidade Estadual Paulista "Júlio de Mesquita Filho" (CAUNESP), Universidade Estadual Paulista "Júlio de Mesquita Filho (UNEP),Jaboticabal, Brazil.LundstedtLícia MariaLMEmbrapa Pesca e Aquiculturae, Prolongamento da Avenida NS, Palmas, Brazil.MoraesGilbertoGDepartment of Genetics and Evolution, Federal University of São Carlos, São Carlos, Brazil.Cavalheiro AraújoBrunoBNúcleo Integrado de Biotecnologia, Universidade de Mogi das Cruzes, Mogi das Cruzes, Brazil.Leite VenturieriRossana LuizaRLOriginal Amazon Assessoria Empresarial, Rua Mario Amaral, São Paulo, Brazil.Guimarães MoreiraRenataRDepartamento de Fisiologia, Instituto de Biociências, Universidade de São Paulo (USP), São Paulo, Brazil.engJournal Article20210625EnglandJ Fish Biol02140550022-1112EC 3.4.-Peptide HydrolasesIMAnimalsCatfishesDigestive SystemLarvaPeptide HydrolasesPseudoplatystoma reticulatumcacharadevelopmentdigestive enzymesdigestive systemhybrid2021042020210311202104302021556020219236020215475ppublish3394231310.1111/jfb.14771REFERENCES, 2021
5. Diversity and community ecology of metazoan parasites in Pimelodus ornatus (Siluriformes: Pimelodidae) from the Amazonas River in Brazil.
Lima ES, Oliveira MSB, Tavares-Dias M
Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria, 2021
6. Ichthyofauna in the last free-flowing river of the Lower Iguaçu basin: the importance of tributaries for conservation of endemic species.
Pini SFR, Makrakis MC, Neves MP, Makrakis S, Shibatta OA, Kashiwaqui EAL
7. Early ontogeny of Pimelodus blochii Valenciennes, 1840 (Siluriformes: Pimelodidae): Neotropical catfish.
DA Silva FKS, Cajado RA, DE Oliveira LS, Ribeiro FRV, Zacardi DM
8. Larval diet of two Amazonian goliath catfish species.
Márquez-Velásquez V, Galdino Leite R, Hernandez-Serna A, Alvarado F
Journal of fish biologyJ Fish BiolLarval diet of two Amazonian goliath catfish species.333-33610.1111/jfb.14565Analysis of feeding habits was performed for early life stages of Brachyplatystoma rousseauxii and Brachyplatystoma filamentosum in the Madeira River, Brazil. Stomach contents of B. rousseauxii and B. filamentosum were identified and analysed to provide the percentage of frequency of occurrence (%FO) and area (%A) and the alimentary index (IAi). The order Diptera represented the most important item consumed by both species. This is the first analyses of the trophic ecology of these ecologically and economically important species of the Amazonian region in early life stages.© 2020 Fisheries Society of the British Isles.Márquez-VelásquezVivianaVhttps://orcid.org/0000-0002-1205-7720Programa de Pós-Graduação em Ciências Biológicas (Zoologia), Universidade Federal da Paraíba, João Pessoa, Brazil.Fundación Colombiana para la Investigación y Conservación de Tiburones y Rayas, SQUALUS, Cali, Colombia.IRIS Research Group, Innovation for Resilience, Inclusion and Sustainability, Laboratory of Animal Ecology, Universidade Federal da Paraíba, Campus IV, Rio Tinto, Brazil.Galdino LeiteRossevalRhttps://orcid.org/0000-0002-0397-0315Instituto Nacional de Pesquisas da Amazônia, INPA, Manaus, Brazil.Hernandez-SernaAndresAhttps://orcid.org/0000-0002-4231-3166Department of Geographical Sciences, University of Maryland, College Park, Maryland, USA.AlvaradoFredyFhttps://orcid.org/0000-0002-6724-4064Departamento de Agricultura, Universidade Federal da Paraíba, Campus III, Bananeiras, Brazil.engInstituto Nacional de Pesquisas da AmazôniaJournal Article20201015EnglandJ Fish Biol02140550022-1112IMAnimalsBrazilCatfishesphysiologyDietveterinaryFeeding BehaviorphysiologyFood ChainGastrointestinal ContentsRiversPimelodidaefish larvaefood resourcesfreshwater ecosystemsgut contents2020051120200902202009242020101602021476020209301218ppublish3299735010.1111/jfb.14565REFERENCES, 2021
9. Helminth diversity in Pimelodus blochii Valenciennes, 1840 (Osteichthyes: Pimelodidae) in two Amazon Rivers.
Cavalcante PHO, da Silva MT, Pereira ANS, Gentile R, Santos CP
Parasitology research, 2020
10. Erratum to "Chilling sensitivity of Steindachneridion parahybae (Siluriformes: Pimelodidae) oocytes in different cryoprotectants" [7C (June 2019) 100046].
da Silva Lopes T, Sanches EA, Caneppele D, Silveira MM, Romagosa E
Veterinary and animal science, 2020