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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Animal Science and Veterinary 25 2986 2701 35 34 89 1964

Kenji Karino publications per year

The chart shows the history of publications by Kenji Karino between 1986 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Kenji Karino published across 40 years, from 1986 to 2025, averaging 2.4 papers a year. Output peaked at 7 publications in 2006. 6 of the 97 publications appeared in the last two years.

No. of publications
2 4 6
Bar chart. Horizontal axis: year, 1986 to 2025. Vertical axis: number of publications, 0 to 7. Peak 7 publications in 2006. 1986: 1 publication 1987: 0 publications 1988: 0 publications 1989: 0 publications 1990: 0 publications 1991: 0 publications 1992: 1 publication 1993: 1 publication 1994: 0 publications 1995: 1 publication 1996: 2 publications 1997: 2 publications 1998: 3 publications 1999: 3 publications 2000: 4 publications 2001: 1 publication 2002: 3 publications 2003: 4 publications 2004: 4 publications 2005: 3 publications 2006: 7 publications 2007: 5 publications 2008: 4 publications 2009: 7 publications 2010: 5 publications 2011: 5 publications 2012: 4 publications 2013: 1 publication 2014: 3 publications 2015: 2 publications 2016: 2 publications 2017: 3 publications 2018: 2 publications 2019: 3 publications 2020: 1 publication 2021: 2 publications 2022: 1 publication 2023: 1 publication 2024: 2 publications 2025: 4 publications
1986 2025

97 publications in total across all disciplines

View publications per year as a table
Kenji Karino: publications per year, 1986 to 2025
Year Publications
1986 1
1987 0
1988 0
1989 0
1990 0
1991 0
1992 1
1993 1
1994 0
1995 1
1996 2
1997 2
1998 3
1999 3
2000 4
2001 1
2002 3
2003 4
2004 4
2005 3
2006 7
2007 5
2008 4
2009 7
2010 5
2011 5
2012 4
2013 1
2014 3
2015 2
2016 2
2017 3
2018 2
2019 3
2020 1
2021 2
2022 1
2023 1
2024 2
2025 4
Total 97
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Kenji Karino publication distribution in Animal Science and Veterinary in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Animal Science and Veterinary in 2026. The highlighted bar marks where Kenji Karino sits on this spectrum.

No. of scientists
25 50 75 100
Bar chart with 84 bars. Horizontal axis: publications, 29–33 to 442+. Vertical axis: number of scientists, 0 to 109. Most scientists, 109, have 119–123 publications. The last bar groups every scientist with 442 publications or more. The highlighted bar, 89–93 publications, is where this scientist sits. 29–33 publications: 1 scientist 34–38 publications: 6 scientists 39–43 publications: 17 scientists 44–48 publications: 23 scientists 49–53 publications: 28 scientists 54–58 publications: 44 scientists 59–63 publications: 66 scientists 64–68 publications: 75 scientists 69–73 publications: 71 scientists 74–78 publications: 85 scientists 79–83 publications: 108 scientists 84–88 publications: 105 scientists 89–93 publications: 84 scientists 94–98 publications: 103 scientists 99–103 publications: 97 scientists 104–108 publications: 95 scientists 109–113 publications: 89 scientists 114–118 publications: 88 scientists 119–123 publications: 109 scientists 124–128 publications: 93 scientists 129–133 publications: 89 scientists 134–138 publications: 95 scientists 139–143 publications: 92 scientists 144–148 publications: 80 scientists 149–153 publications: 75 scientists 154–158 publications: 74 scientists 159–163 publications: 67 scientists 164–168 publications: 53 scientists 169–173 publications: 62 scientists 174–178 publications: 63 scientists 179–183 publications: 50 scientists 184–188 publications: 55 scientists 189–193 publications: 50 scientists 194–198 publications: 27 scientists 199–203 publications: 44 scientists 204–208 publications: 31 scientists 209–213 publications: 28 scientists 214–218 publications: 38 scientists 219–223 publications: 33 scientists 224–228 publications: 36 scientists 229–233 publications: 29 scientists 234–238 publications: 35 scientists 239–243 publications: 23 scientists 244–248 publications: 24 scientists 249–253 publications: 29 scientists 254–258 publications: 28 scientists 259–263 publications: 21 scientists 264–268 publications: 25 scientists 269–273 publications: 11 scientists 274–278 publications: 18 scientists 279–283 publications: 13 scientists 284–288 publications: 18 scientists 289–293 publications: 10 scientists 294–298 publications: 12 scientists 299–303 publications: 11 scientists 304–308 publications: 15 scientists 309–313 publications: 14 scientists 314–318 publications: 14 scientists 319–323 publications: 8 scientists 324–328 publications: 8 scientists 329–333 publications: 13 scientists 334–338 publications: 14 scientists 339–343 publications: 13 scientists 344–348 publications: 10 scientists 349–353 publications: 11 scientists 354–358 publications: 5 scientists 359–363 publications: 8 scientists 364–368 publications: 8 scientists 369–373 publications: 6 scientists 374–378 publications: 7 scientists 379–383 publications: 8 scientists 384–388 publications: 3 scientists 389–393 publications: 4 scientists 394–398 publications: 5 scientists 399–403 publications: 8 scientists 404–408 publications: 5 scientists 409–413 publications: 4 scientists 414–418 publications: 3 scientists 419–423 publications: 8 scientists 424–428 publications: 5 scientists 429–433 publications: 3 scientists 434–438 publications: 5 scientists 439–441 publications: 5 scientists 442+ publications: 99 scientists
29–33 publications 442+

This scientist: 89 publications — 20th percentile

20% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 442 publications or more.

View publications distribution as a table
Number of Animal Science and Veterinary scientists by publication count, Research.com 2026 ranking edition. Based on 3,155 ranked scientists.
Publications Scientists This scientist
29–33 1
34–38 6
39–43 17
44–48 23
49–53 28
54–58 44
59–63 66
64–68 75
69–73 71
74–78 85
79–83 108
84–88 105
89–93 84 89
94–98 103
99–103 97
104–108 95
109–113 89
114–118 88
119–123 109
124–128 93
129–133 89
134–138 95
139–143 92
144–148 80
149–153 75
154–158 74
159–163 67
164–168 53
169–173 62
174–178 63
179–183 50
184–188 55
189–193 50
194–198 27
199–203 44
204–208 31
209–213 28
214–218 38
219–223 33
224–228 36
229–233 29
234–238 35
239–243 23
244–248 24
249–253 29
254–258 28
259–263 21
264–268 25
269–273 11
274–278 18
279–283 13
284–288 18
289–293 10
294–298 12
299–303 11
304–308 15
309–313 14
314–318 14
319–323 8
324–328 8
329–333 13
334–338 14
339–343 13
344–348 10
349–353 11
354–358 5
359–363 8
364–368 8
369–373 6
374–378 7
379–383 8
384–388 3
389–393 4
394–398 5
399–403 8
404–408 5
409–413 4
414–418 3
419–423 8
424–428 5
429–433 3
434–438 5
439–441 5
442+ 99
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Kenji Karino D-index placement in Animal Science and Veterinary in 2026

The chart shows the D-index (discipline H-index) distribution of Animal Science and Veterinary scientists ranked by Research.com in 2026. The highlighted bar marks where Kenji Karino sits on this spectrum.

No. of scientists
50 100 150
Bar chart with 58 bars. Horizontal axis: D-Index, 20 to 77+. Vertical axis: number of scientists, 0 to 158. Most scientists, 158, have 31 D-Index. The last bar groups every scientist with 77 D-Index or more. The highlighted bar, 25 D-Index, is where this scientist sits. 20 D-Index: 5 scientists 21 D-Index: 22 scientists 22 D-Index: 31 scientists 23 D-Index: 44 scientists 24 D-Index: 53 scientists 25 D-Index: 66 scientists 26 D-Index: 80 scientists 27 D-Index: 101 scientists 28 D-Index: 106 scientists 29 D-Index: 116 scientists 30 D-Index: 154 scientists 31 D-Index: 158 scientists 32 D-Index: 143 scientists 33 D-Index: 137 scientists 34 D-Index: 126 scientists 35 D-Index: 134 scientists 36 D-Index: 112 scientists 37 D-Index: 115 scientists 38 D-Index: 105 scientists 39 D-Index: 111 scientists 40 D-Index: 107 scientists 41 D-Index: 87 scientists 42 D-Index: 74 scientists 43 D-Index: 62 scientists 44 D-Index: 61 scientists 45 D-Index: 41 scientists 46 D-Index: 51 scientists 47 D-Index: 43 scientists 48 D-Index: 28 scientists 49 D-Index: 47 scientists 50 D-Index: 40 scientists 51 D-Index: 34 scientists 52 D-Index: 33 scientists 53 D-Index: 43 scientists 54 D-Index: 16 scientists 55 D-Index: 32 scientists 56 D-Index: 21 scientists 57 D-Index: 18 scientists 58 D-Index: 28 scientists 59 D-Index: 33 scientists 60 D-Index: 17 scientists 61 D-Index: 21 scientists 62 D-Index: 18 scientists 63 D-Index: 21 scientists 64 D-Index: 9 scientists 65 D-Index: 20 scientists 66 D-Index: 11 scientists 67 D-Index: 16 scientists 68 D-Index: 12 scientists 69 D-Index: 17 scientists 70 D-Index: 13 scientists 71 D-Index: 15 scientists 72 D-Index: 11 scientists 73 D-Index: 11 scientists 74 D-Index: 14 scientists 75 D-Index: 5 scientists 76 D-Index: 6 scientists 77+ D-Index: 100 scientists
20 D-Index 77+

This scientist: 25 D-Index — 7th percentile

7% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 77 D-Index or more.

View D-Index distribution as a table
Number of Animal Science and Veterinary scientists by D-index, Research.com 2026 ranking edition. Based on 3,155 ranked scientists.
D-Index Scientists This scientist
20 5
21 22
22 31
23 44
24 53
25 66 25
26 80
27 101
28 106
29 116
30 154
31 158
32 143
33 137
34 126
35 134
36 112
37 115
38 105
39 111
40 107
41 87
42 74
43 62
44 61
45 41
46 51
47 43
48 28
49 47
50 40
51 34
52 33
53 43
54 16
55 32
56 21
57 18
58 28
59 33
60 17
61 21
62 18
63 21
64 9
65 20
66 11
67 16
68 12
69 17
70 13
71 15
72 11
73 11
74 14
75 5
76 6
77+ 100
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Overview

Kenji Karino is affiliated with Tokyo Gakugei University in Japan. Their research spans several domains within agricultural and biological sciences as well as medicine, with a focus on ecology, physiology, and emergency medicine.

The scientist's primary fields of study include:

  • Agricultural and Biological Sciences
  • Medicine

Within these broad fields, their work extends to subfields such as:

  • Ecology, Evolution, Behavior and Systematics
  • Physiology
  • Emergency Medicine
  • Surgery
  • Global and Planetary Change

Karino's research topics reflect a concentration on animal behavior, reproductive biology, and medical emergency response, specifically:

  • Animal Behavior and Reproduction
  • Reproductive biology and impacts on aquatic species
  • Amphibian and Reptile Biology
  • Cardiac Arrest and Resuscitation
  • Trauma Management and Diagnosis
  • Trauma and Emergency Care Studies
  • Fish Ecology and Management Studies

Frequent co-authors associated with Karino include:

  • Nao Sato
  • Raihi Kato
  • Ryudai Yamada
  • Makoto Hirose
  • Satoru Okamoto

Publications appear in a variety of specialized journals, with repeated contributions to:

  • Journal of Ethology
  • Resuscitation Plus
  • PLoS ONE
  • ZOOLOGICAL SCIENCE
  • Cureus

Notable recent papers include:

  • "Chest compressions become deeper when pushing with forward lean: A simulation study" (2021), Resuscitation Plus
  • "Diet color affects female preference for mate color in the guppy Poecilia reticulata" (2024), Journal of Ethology
  • "Male coloration affects female gestation period and timing of fertilization in the guppy (Poecilia reticulata)" (2021), PLoS ONE
  • "Mate Discrimination Using Chemical Cues by Male Guppies" (2023), ZOOLOGICAL SCIENCE
  • "Measuring the Compression Force Required for Vascular Shortening in Ultrasonic Vascular Models" (2022), Cureus

Best Publications

  • Larval nutritional environment determines adult size in Japanese horned beetles Allomyrina dichotoma

    Kenji Karino;Natsuki Seki;Mutsumi Chiba

  • Heritability of male secondary sexual traits in feral guppies in Japan

    K. Karino;Y. Haijima

  • Facial Recognition in a Group-Living Cichlid Fish

    Masanori Kohda;Lyndon Alexander Jordan;Takashi Hotta;Naoya Kosaka

  • Heritability of the algal-foraging ability: an indirect benefit of female mate preference for males' carotenoid-based coloration in the guppy, Poecilia reticulata

    Kenji Karino;Taeko Utagawa;Shinya Shinjo

  • Female-female Spawning and Sex Change in a Haremic Coral-reef Fish, Labroides dimidiatus

    Yasuhiro Nakashima;Yoichi Sakai;Kenji Karino;Tetsuo Kuwamura

  • FEMALE MATE PREFERENCE IS FOR MALE TOTAL LENGTH, NOT TAIL LENGTH IN FERAL GUPPIES

    Kenji Karino;Jun Matsunaga

  • Algal-diet Enhances Sexual Ornament, Growth And Reproduction in the Guppy

    Kenji Karino;Yoko Haijima

  • Horn Length Is the Determining Factor in the Outcomes of Escalated Fights Among Male Japanese Horned Beetles, Allomyrina dichotoma L. (Coleoptera: Scarabaeidae)

    Kenji Karino;Hisatsugu Niiyama;Mutsumi Chiba

  • Male morphological characteristics and mating success in a protogynous coral reef fish, Halichoeres melanurus

    Tetsuo Kuwamura;Kenji Karino;Yasuhiro Nakashima

  • Reversed Sex‐Change in the Protogynous Reef Fish Labroides dimidiatus

    Tetsuo Kuwamura;Naomi Tanaka;Yasuhiro Nakashima;Kenji Karino

  • Reproductive Behavior of the Territorial Herbivore Stegastes nigricans (Pisces: Pomacentridae) in Relation to Colony Formation

    Kenji Karino;Akinobu Nakazono

  • Female mate preference based on male orange spot patterns in the feral guppy Poecilia reticulata in Japan

    Kenji Karino;Shinya Shinjo

  • Male‐male Competition and Female Mate Choice through Courtship Display in the Territorial Damselfish Stegastes nigricans

    Kenji Karino;Kenji Karino

  • Depth-related differences in territory size and defense in the herbivorous cichlid, Neolamprologus moorii, in Lake Tanganyika

    Kenji Karino

  • Algal-searching ability in laboratory experiments reflects orange spot coloration of the male guppy in the wild

    Kenji Karino;Shinya Shinjo;Aya Sato

  • The influence of sex, line, and fight experience on aggressiveness of the Siamese fighting fish in intrasexual competition.

    K. Karino;C. Someya

  • Female mate preference for males having long and symmetric fins in the bower-holding cichlid Cyathopharynx furcifer

    Kenji Karino

  • Sexually dichromatic protogynous angelfish Centropyge ferrugata (Pomacanthidae) males can change back to females.

    Yoichi Sakai;Kenji Karino;Tetsuo Kuwamura;Yasuhiro Nakashima;Yasuhiro Nakashima

  • Effect of clutch size on male egg-fanning behavior and hatching success in the goby, Eviota prasina (Klunzinger)

    Kenji Karino;Reiko Arai

  • Sex change of primary males in a diandric labrid Halichoeres trimaculatus: Coexistence of protandry and protogyny within a species

    T. Kuwamura;S. Suzuki;N. Tanaka;E. Ouchi

Frequent Co-Authors

Masakazu Shimada
Masakazu Shimada University of Tokyo

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