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Okinawa Churashima Foundation

churashima.okinawaROR OpenAlex
World rank, all time
#34,329
of 34,923
Rank in Japan
#1,847
of 1,923
Research works
155
▼ 16% vs 2018-21
Citations
1.8k
11.4 per fractional work
Top-10% rate
8.3%
all institutions 10.0%
vs its own fields
0.90×
1.00× is exactly expected
Open access
57%
world 40%
International
17%
world 18%
Okinawa Churashima Foundation

Which fields of science does Okinawa Churashima Foundation work in?

In 2022-now, 62% of research at Okinawa Churashima Foundation is in Physical Sciences, 29% in Life Sciences. Its largest fields are Environmental Science (53%), Agricultural and Biological Sciences (14%), Biochemistry, Genetics and Molecular Biology (13%). It does 1.8× the world's share of Life Sciences.

Physical Sciences: 28 fractional works · 62.5% of its workEnvironmental Science: 24 fractional works · 53.1% of its workEcology: 10 fractional works · 22.7% of its workNature and Landscape Conservation: 10 fractional works · 22.3% of its workGlobal and Planetary Change: 3 fractional works · 5.8% of its workHealth, Toxicology and Mutagenesis: 1 fractional works · 1.1% of its workWater Science and Technology: 0 fractional works · 0.6% of its workEcological Modeling: 0 fractional works · 0.4% of its workEarth and Planetary Sciences: 2 fractional works · 5.4% of its workPaleontology: 1 fractional works · 3.0% of its workOceanography: 1 fractional works · 1.3% of its workAtmospheric Science: 0 fractional works · 1.1% of its workEngineering: 1 fractional works · 1.7% of its workOcean Engineering: 0 fractional works · 1.1% of its workBiomedical Engineering: 0 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.2% of its workMaterials Science: 1 fractional works · 1.5% of its workBiomaterials: 0 fractional works · 1.1% of its workSurfaces, Coatings and Films: 0 fractional works · 0.4% of its workComputer Science: 0 fractional works · 0.4% of its workComputer Networks and Communications: 0 fractional works · 0.4% of its workMathematics: 0 fractional works · 0.4% of its workGeometry and Topology: 0 fractional works · 0.4% of its workLife Sciences: 13 fractional works · 28.9% of its workAgricultural and Biological Sciences: 6 fractional works · 14.3% of its workEcology, Evolution, Behavior and Systematics: 2 fractional works · 5.2% of its workPlant Science: 2 fractional works · 4.2% of its workAquatic Science: 1 fractional works · 2.8% of its workAnimal Science and Zoology: 0 fractional works · 1.1% of its workFood Science: 0 fractional works · 0.7% of its workInsect Science: 0 fractional works · 0.2% of its workBiochemistry, Genetics and Molecular Biology: 6 fractional works · 12.9% of its workMolecular Biology: 4 fractional works · 8.0% of its workGenetics: 1 fractional works · 1.9% of its workPhysiology: 1 fractional works · 1.6% of its workCell Biology: 0 fractional works · 0.6% of its workBiotechnology: 0 fractional works · 0.4% of its workDevelopmental Biology: 0 fractional works · 0.4% of its workImmunology and Microbiology: 0 fractional works · 1.1% of its workImmunology: 0 fractional works · 0.7% of its workParasitology: 0 fractional works · 0.3% of its workNeuroscience: 0 fractional works · 0.6% of its workCellular and Molecular Neuroscience: 0 fractional works · 0.5% of its workSmaller subfields together: 0 fractional works · 0.1% of its workHealth Sciences: 4 fractional works · 8.4% of its workMedicine: 3 fractional works · 6.2% of its workTransplantation: 0 fractional works · 1.1% of its workPharmacology: 0 fractional works · 0.9% of its workObstetrics and Gynecology: 0 fractional works · 0.8% of its workPediatrics, Perinatology and Child Health: 0 fractional works · 0.7% of its workEpidemiology: 0 fractional works · 0.5% of its workPulmonary and Respiratory Medicine: 0 fractional works · 0.5% of its workSurgery: 0 fractional works · 0.5% of its workCardiology and Cardiovascular Medicine: 0 fractional works · 0.4% of its workHematology: 0 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.5% of its workVeterinary: 0 fractional works · 1.1% of its workSmall Animals: 0 fractional works · 1.1% of its workNursing: 0 fractional works · 0.8% of its workNutrition and Dietetics: 0 fractional works · 0.8% of its workHealth Professions: 0 fractional works · 0.4% of its workSpeech and Hearing: 0 fractional works · 0.4% of its workSocial Sciences: 0 fractional works · 0.2% of its workSocial Sciences: 0 fractional works · 0.2% of its workALL ITS WORKOkinawaChurashima…45fractional works, 2022-now
Life Sciences29%Physical Sciences62%Health Sciences8%Social Sciences0%

Each ring splits the one inside it: the four domains of science, their fields, their subfields. Size is fractional works in 2022-now. Every slice is a page; the interactive view zooms down to single topics and colours each by how much more of it this institution does than the world.

Its 4 domains and 15 fields, with their numbers
    1. Environmental Science2453.1%
    2. Earth and Planetary Sciences25.4%
    3. Engineering11.7%
    4. Materials Science11.5%
    5. Computer Science00.4%
    6. Mathematics00.4%
    1. Agricultural and Biological Sciences614.3%
    2. Biochemistry, Genetics and Molecular Biology612.9%
    3. Immunology and Microbiology01.1%
    4. Neuroscience00.6%
    1. Medicine36.2%
    2. Veterinary01.1%
    3. Nursing00.8%
    4. Health Professions00.4%
    1. Social Sciences00.2%
All of science, and how each field's share has moved since 1950: the Science domain explorer

What does Okinawa Churashima Foundation specialise in?

Where its research is concentrated relative to its size: Environmental Science takes 10.7× the share of its output that it takes of world research.

  1. Environmental ScienceField · 24.0 works11×
← less than its size predicts1×more →

Location quotient, a volume reading rather than an impact one. It surfaces small, lopsided specialities.

Field profile

Location quotient across every field it publishes in: outside the ring is more than an institution of this size would be expected to publish, inside it is less.

Agricultural and Biological Sciences: 3.01× its world share, 6 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 2.41× its world share, 6 worksBiochemistry, Geneti…Immunology and Microbiology: 1.06× its world share, 0 worksImmunology and Micro…Neuroscience: 0.40× its world share, 0 worksNeuroscienceComputer Science: 0.05× its world share, 0 worksComputer ScienceEarth and Planetary Sciences: 3.44× its world share, 2 worksEarth and Planetary …Engineering: 0.11× its world share, 1 worksEngineeringEnvironmental Science: 10.70× its world share, 24 worksEnvironmental ScienceMaterials Science: 0.42× its world share, 1 worksMaterials ScienceMathematics: 0.31× its world share, 0 worksMathematicsHealth Professions: 0.14× its world share, 0 worksHealth ProfessionsMedicine: 0.32× its world share, 3 worksMedicineNursing: 1.53× its world share, 0 worksNursingVeterinary: 8.06× its world share, 0 worksVeterinarySocial Sciences: 0.02× its world share, 0 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Environmental Science, 10.7×. Every wedge is a field page.

All 15 fields, with their numbers
  1. Environmental Science10.70×24 works
  2. Veterinary8.06×0 works
  3. Earth and Planetary Sciences3.44×2 works
  4. Agricultural and Biological Sciences3.01×6 works
  5. Biochemistry, Genetics and Molecular Biology2.41×6 works
  6. Nursing1.53×0 works
  7. Immunology and Microbiology1.06×0 works
  8. Materials Science0.42×1 works
  9. Neuroscience0.40×0 works
  10. Medicine0.32×3 works
  11. Mathematics0.31×0 works
  12. Health Professions0.14×0 works
  13. Engineering0.11×1 works
  14. Computer Science0.05×0 works
  15. Social Sciences0.02×0 works

Who are the top researchers at Okinawa Churashima Foundation?

Ranked on the quality score, Hiromi Hannah Yamamoto, Rui Matsumoto and Nozomi Hanahara lead among researchers whose main affiliation is Okinawa Churashima Foundation.

  1. 1 Hiromi Hannah Yamamoto Japan · #2,445,118 worldwide 717 citations · 46 works
  2. 2 Rui Matsumoto Japan · #2,572,635 worldwide 567 citations · 21 works
  3. 3 Nozomi Hanahara Japan · #2,893,333 worldwide 179 citations · 25 works
  4. 4 Katherine Margaret Muzik Japan · #3,505,604 worldwide 237 citations · 15 works
  5. 5 Ryo Nozu Japan · #3,551,692 worldwide 1.1k citations · 61 works
  6. 6 Haruna Okabe Japan · #3,646,417 worldwide 202 citations · 21 works
  7. 7 Kiyomi Murakumo Japan · #3,872,660 worldwide 616 citations · 42 works
  8. 8 Senzo Uchida Japan · #3,974,210 worldwide 835 citations · 42 works
  9. 9 Keiichi Sato Japan · #4,134,216 worldwide 7.2k citations · 382 works
  10. 10 Shin‐ichiro Oka Japan · #4,287,639 worldwide 1k citations · 76 works
All ranked researchers at Okinawa Churashima Foundation

What are the most cited papers from Okinawa Churashima Foundation?

The most cited paper from Okinawa Churashima Foundation is "MiFish, a set of universal PCR primers for metabarcoding environmental DNA from fishes: detection of more than 230 subtropical marine species" (Masaki U. Miya, Yukuto Sato, Tsukasa Fukunaga et al., 2015), with 1,572 citations. Next come "Sex determination, gonadal sex differentiation, and plasticity in vertebrate species" (374) and "Shark genomes provide insights into elasmobranch evolution and the origin of vertebrates" (262).

Most cited papers
#PaperReleasedCitations
1 MiFish, a set of universal PCR primers for metabarcoding environmental DNA from fishes: detection of more than 230 subtropical marine species Masaki U. Miya, Yukuto Sato, Tsukasa Fukunaga et al. · Royal Society Open Science Open access Jul 2015 1,572
2 Sex determination, gonadal sex differentiation, and plasticity in vertebrate species Yoshitaka Nagahama, Tapas Ranjan Chakraborty, Bindhu Paul‐Prasanth et al. · Physiological Reviews Review 12 Nov 2020 374
3 Shark genomes provide insights into elasmobranch evolution and the origin of vertebrates Yuichiro Hara et al. · Nature Ecology & Evolution Open access 28 Sep 2018 262
4 MOVEMENTS AND POPULATION STRUCTURE OF HUMPBACK WHALES IN THE NORTH PACIFIC John A. Calambokidis et al. · Marine Mammal Science Oct 2001 234
5 Environmental DNA enables detection of terrestrial mammals from forest pond water Masayuki Ushio, Hisato Fukuda, Toshiki Inoue et al. · Molecular Ecology Resources 11 Jun 2017 217
All 59 most cited papers, with filters and sorting

Which keywords describe research at Okinawa Churashima Foundation?

By fractional works in 2022-now, weighted toward what it does more of than the world: Climate Change, Conservation, Population Dynamics, Marine Ecosystems, Fisheries, Ecology, Phylogeny and Rays.

▲ more of its work than of the world's◆ about the world's share▼ less than the world's

Size is fractional works in 2022-now in the topics tagged with each word; colour is the word's share of this institution's work against its share of the world's. The 40 words are chosen for being large and distinctive. Each links to the topic it comes from most.

All 40 words, with their numbers
  1. Climate Change12▲ 9.8×16 topics
  2. Conservation11▲ 58×7 topics
  3. Population Dynamics11▲ 92×6 topics
  4. Marine Ecosystems8▲ 337×2 topics
  5. Fisheries7▲ 358×2 topics
  6. Ecology7▲ 85×3 topics
  7. Phylogeny7▲ 87×4 topics
  8. Rays6▲ 626×1 topic
  9. Sharks6▲ 626×1 topic
  10. DNA Barcoding4▲ 54×4 topics
  11. Biodiversity4▲ 11×8 topics
  12. Invasive Species4▲ 20×6 topics
  13. Habitat Fragmentation4▲ 36×3 topics
  14. Phylogenetic Analysis3▲ 23×8 topics
  15. Fisheries Sustainability3▲ 73×2 topics
  16. Ocean Acidification2▲ 67×2 topics
  17. Acoustic Communication2▲ 89×2 topics
  18. Bleaching2▲ 139×1 topic
  19. Coral Reefs2▲ 139×1 topic
  20. Predator-Prey Interactions2▲ 57×2 topics
  21. Sea-Level Rise2▲ 37×2 topics
  22. Anthropogenic Noise2▲ 151×1 topic
  23. Conservation Challenges2▲ 92×1 topic
  24. Freshwater Biodiversity2▲ 69×1 topic
  25. Marine Mammals2▲ 151×1 topic
  26. Food Authentication2▲ 38×1 topic
  27. Fraud Detection2▲ 29×1 topic
  28. Molecular Phylogeny2▲ 25×6 topics
  29. Stem Cells2▲ 14×4 topics
  30. Ecosystem Services2▲ 8.9×3 topics
  31. Conservation Biology2▲ 30×3 topics
  32. Freshwater2▲ 69×2 topics
  33. Reproductive Strategies2▲ 84×2 topics
  34. Biogeography1▲ 11×6 topics
  35. Environmental DNA1▲ 146×1 topic
  36. Ethical Considerations1▲ 8.1×2 topics
  37. Genetic Structure1▲ 39×3 topics
  38. Metabarcoding1▲ 146×1 topic
  39. Amphibian Declines1▲ 103×1 topic
  40. Coastal Protection1▲ 40×2 topics

Which research topics does Okinawa Churashima Foundation publish most on?

By volume in 2022-now: Ichthyology and Marine Biology, Coral and Marine Ecosystems Studies, Marine animal studies overview and Fish Ecology and Management Studies.

Ichthyology and Marine B…6Ichthyology and Marine Biology: 6 fractional worksCoral and Marine Ecosystems Studies: 2 fractional worksMarine animal studies overview: 2 fractional worksFish Ecology and Management Studies: 2 fractional worksIdentification and Quantification in Food: 2 fractional worksEnvironmental DNA in Bio…1Environmental DNA in Biodiversity Studies: 1 fractional worksAmphibian and Reptile Biology: 1 fractional worksMarine Invertebrate Physiology and Ecology: 1 fractional worksCoastal wetland ecosystem dynamics: 1 fractional worksWeed Control and Herbicide Applications: 1 fractional works
Nature and Landscape ConservationEcologyMolecular BiologyGlobal and Planetary Change2 others

Area is fractional works; colour is the subfield each topic belongs to.

  1. 1 Ichthyology and Marine Biology Nature and Landscape Conservation 6 works
  2. 2 Coral and Marine Ecosystems Studies Ecology 2 works
  3. 3 Marine animal studies overview Ecology 2 works
  4. 4 Fish Ecology and Management Studies Nature and Landscape Conservation 2 works
  5. 5 Identification and Quantification in Food Molecular Biology 2 works
  6. 6 Environmental DNA in Biodiversity Studies Ecology 1 works
  7. 7 Amphibian and Reptile Biology Global and Planetary Change 1 works
  8. 8 Marine Invertebrate Physiology and Ecology Paleontology 1 works
  9. 9 Coastal wetland ecosystem dynamics Ecology 1 works
  10. 10 Weed Control and Herbicide Applications Plant Science 1 works

How open and international is its research?

Against the world's own shares: the tick on each track. Both are shares of its output, so they sit on one scale and can be read against each other as well as against the world.

openly available56.8%not open43.2%

World: 40% of research is openly available.

with international co-authors16.7%domestic only83.3%

World: 18% is written across borders.

How has Okinawa Churashima Foundation's research output changed?

Output in 2022-2025 was 16% lower than in 2018-2021.

still counting200020102020
grewheldshrank

The same series as a ribbon: one cell per year, darker for more. The line above answers how much; this answers when.

Its share of all research

Growing output can still be a shrinking share: all of science grows. This is Okinawa Churashima Foundation as a percentage of every work published that year, 0.00015% in 2024.

still counting0.00010%0.00020%0.00030%Okinawa Churashima Foundation0.00018% in 2025200020102020

Fractional works of Okinawa Churashima Foundation over all fractional works that year. How the balance of science has shifted.

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Okinawa Churashima Foundation on Science Explorer

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