- Fish biology, ecology, and behavior
- Fish Biology and Ecology Studies
- Mediterranean and Iberian flora and fauna
- Ichthyology and Marine Biology
- Fish Ecology and Management Studies
- Diatoms and Algae Research
- Parasite Biology and Host Interactions
- Date Palm Research Studies
- Botanical Research and Applications
- Banana Cultivation and Research
- Hume's philosophy and hair distribution
- Plant and soil sciences
- Scarabaeidae Beetle Taxonomy and Biogeography
- Archaeological and Historical Studies
- Mollusks and Parasites Studies
- Medieval and Early Modern Iberia
- Mycorrhizal Fungi and Plant Interactions
- Plant Pathogens and Fungal Diseases
- Microbial Metabolism and Applications
- Plant Diversity and Evolution
- Plant Taxonomy and Phylogenetics
- Marine Sponges and Natural Products
- Helminth infection and control
- Fern and Epiphyte Biology
- Phytochemistry Medicinal Plant Applications
National Institute of Amazonian Research
2015-2025
Three new species of Harttia from the Rio Xingu basin in region Serra do Cachimbo, Pará State, Brazil, are described. rondoni n. sp., H. panara sp. and villasboas were collected Curuá, a tributary Iriri, drainage. was additionally recorded Fresco basin, middle Xingu. The three represent first records for genus this differs by having abdomen partially covered plates. larger body depth interorbital distance. anterior profile head elliptical dorsal view more elongated snout. Additionally, 26...
Abstract The Amazon Basin is an unquestionable biodiversity hotspot, containing the highest freshwater on earth and facing off a recent increase in anthropogenic threats. current knowledge spatial distribution of fish species greatly deficient this basin, preventing comprehensive understanding hyper-diverse ecosystem as whole. Filling gap was priority transnational collaborative project, i.e . AmazonFish project - https://www.amazon-fish.com/ Relying outputs we provide most complete records...
In the midst of effervescent discussions climate change and setbacks in national environmental protection mechanisms, Brazilian Amazon its ichthyofauna are spotlight. Therefore, this work we redescribe Hypostomus carinatus (Steindachner 1881), a little known medium-sized Amazonian species, providing means for correct identification taxonomic stabilization. way, based on analysis type specimens recently collected material, H. is redescribed geographical distribution expanded to basins Branco,...
ABSTRACT During the Mosaico do Apuí expedition in 2006, a new species of Ancistrus was found rio Sucunduri, large tributary Madeira basin south Amazonas State. The has unique color pattern for genus and is distinguished by presence alternate light dark vertical bars on trunk. Other Ancistrini genera have with similar pattern, but clearly lack plates snout fleshy tentacles as all representatives. We also provide comments taxonomic status A. bolivianus, heterorhynchus marcapatae.
ABSTRACT A new species of Paralithoxus is described from the Ajarani River, a small tributary Branco River basin, Roraima State, Brazilian Amazon. The genus comprises Essequibo drainage in Guyana, Approuague and Maroni French Guiana, Suriname Surinam, more recently, Jari Amapá rivers, Brazil. Despite occurring rock-bottomed fast-flowing stream as other Paralithoxus, this first collected at 900 m altitude, Serra da Mocidade highlands, an isolated poorly accessible mountain chain southern...
The rio Madeira is the largest white-water tributary of Amazon, and currently river drainage with highest fish species diversity in world. A new Panaqolus was recognized from middle Mamoré rivers (Brazil) Madre de Dios (Peru) it described herein. This readily distinguished its congeners by large number white dots distributed all over body remarkable amplitude color pattern variation, ranging a pale, light brown, to dark brown almost black background coloration. closely resembles P....
A taxonomic review of Spectracanthicus Nijssen & Isbrücker, including Oligancistrus Rapp Py-Daniel, following a phylogenetic study, is presented. Additionally to S. punctatissimus(Steindachner) and murinus three new species are recognized based on the examination 159 specimens: immaculatus n. sp. from rio Tapajós basin, differs its congeners by color pattern consisting dark gray body, with no dots or spots, having very slender teeth; tocantinensisn. sp., Tocantins drainage distinguished...
A new species of Crenicichla is described from the middle rio Xingu and tributaries, upstream Volta Grande do Xingu. The largest specimen measured 47.8 mm SL. speciescan be distinguished all other by combination following character states: presence serrae on supracleithrum (diagnostic wallacii group), large caudal blotch centrally located lateral line (shared with C. urosema virgatula ), vertical dark stripes fin up to three series teeth premaxilla maxilla (vs. more than four teeth)....