Claudio de Oliveira: h-index, Total Citations, and Citation Map
Claudio de Oliveira's h-index is 66 (392 i10-index, 16,922+ total citations across 5+ publications) according to Google Scholar as of June 2026. Claudio de Oliveira is affiliated with Instituto de Biociências/UNESP.
Claudio de Oliveira is a researcher affiliated with Instituto de Biociências/UNESP, specializing in Fish Genetics, Fish Cytogenetics. Their work has been cited 16,922 times. This profile visualizes their global influence, highlighting strong citation networks in Brazil.
Claudio de Oliveira's Citation Metrics
Bibliometric impact based on 5 indexed publications.
- H-Index
- 66
- i10-Index
- 392
- Total Citations
- 16,922
- Citing Countries
- 15
As of June 2026.
Claudio de Oliveira has an h-index of 66 and 16,922 total citations across 5 publications, with research cited by institutions in 15 countries.
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Phylogenetic relationships within the speciose family Characidae (Teleostei: Ostariophysi: Characiformes) based on multilocus analysis and extensive ingroup sampling
2011484
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Significant Contributions
Auto-detected research lines — a seminal paper and the follow-up work building on it. Review and edit before using in a petition. Each Free PDF opens in a new tab — EB-1A organises this into the structure USCIS applies to Criterion 5 of 8 CFR § 204.5(h)(3)(v); EB-1B re-frames it under § 204.5(i)(3) (outstanding researcher); NIW presents it under prong 2 of Matter of Dhanasar.
The researcher established a foundational reference for Neotropical freshwater fish cytogenetics through a seminal 1988 publication that systematically documented chromosome formulae, serving as a critical baseline for subsequent taxonomic and evolutionary studies.
The researcher established a robust multilocus phylogenetic framework for the diverse Characidae family, providing a foundational reference for evolutionary studies in this speciose group.
The researcher developed a novel in vitro colchicine treatment method for chromosome preparation from large fish specimens, establishing a widely adopted cytogenetic protocol.
Citation trend (last 10 years)Click to expand
Citation Trend (Last 10 Years)
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About Claudio de Oliveira's research
Claudio de Oliveira is a researcher in Fish Genetics and Fish Cytogenetics at Instituto de Biociências/UNESP. Their work has been cited 16,922 times across 5 publications (h-index 66), according to Google Scholar.
Their most-cited work, “Phylogenetic relationships within the speciose family Characidae (Teleostei: Ostariophysi: Characiformes) based on multilocus analysis and extensive ingroup sampling” (2011), has accumulated 484 citations. Other influential works include “Can DNA barcoding accurately discriminate megadiverse Neotropical freshwater fish fauna?” (2013) with 425 citations and “A method for chromosome preparations from large fish specimens using in vitro short-term treatment with colchicine” (1993) with 274 citations.
Citations of Claudio de Oliveira's research come primarily from Brazil, United States and Germany, reflecting international research impact across 5+ countries. The interactive citation map above shows the full geographic distribution of the institutions citing this work.
