Masakazu Oka

460 total citations
23 papers, 375 citations indexed

About

Masakazu Oka is a scholar working on Aquatic Science, Physiology and Nature and Landscape Conservation. According to data from OpenAlex, Masakazu Oka has authored 23 papers receiving a total of 375 indexed citations (citations by other indexed papers that have themselves been cited), including 12 papers in Aquatic Science, 7 papers in Physiology and 6 papers in Nature and Landscape Conservation. Recurrent topics in Masakazu Oka's work include Aquaculture Nutrition and Growth (12 papers), Reproductive biology and impacts on aquatic species (7 papers) and Aquaculture disease management and microbiota (6 papers). Masakazu Oka is often cited by papers focused on Aquaculture Nutrition and Growth (12 papers), Reproductive biology and impacts on aquatic species (7 papers) and Aquaculture disease management and microbiota (6 papers). Masakazu Oka collaborates with scholars based in Japan, United States and Taiwan. Masakazu Oka's co-authors include Takahiko Inazu, Yuji Miyahara, Kenta Goto, Kazuhisa Teruya, Katsuyuki Hamasaki, Jun Hirokawa, Hiroyuki Takeuchi, Takuma Sugaya, Koh-ichiro Mori and Masaru Tanaka and has published in prestigious journals such as Angewandte Chemie International Edition, The Journal of Organic Chemistry and Aquaculture.

In The Last Decade

Masakazu Oka

23 papers receiving 365 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Masakazu Oka Japan 11 143 128 92 85 79 23 375
G. Colombo Italy 14 39 0.3× 160 1.3× 304 3.3× 14 0.2× 12 0.2× 28 579
Kei Maekawa Japan 17 255 1.8× 171 1.3× 36 0.4× 11 0.1× 33 0.4× 48 904
Kevin S. Williamson United States 14 552 3.9× 56 0.4× 81 0.9× 6 0.1× 6 0.1× 19 983
Núria Saperas Spain 16 19 0.1× 41 0.3× 138 1.5× 10 0.1× 4 0.1× 34 724
Ashis Saha India 10 38 0.3× 124 1.0× 76 0.8× 27 0.3× 4 0.1× 29 405
Juliet Kiyoko Sugai Brazil 12 57 0.4× 307 2.4× 88 1.0× 5 0.1× 2 0.0× 22 514
Pia I. Anderberg Australia 7 67 0.5× 35 0.3× 11 0.1× 19 0.2× 12 0.2× 10 334
Santiago Cabaleiro Spain 21 92 0.6× 301 2.4× 64 0.7× 1 0.0× 12 0.2× 42 961
Arvind Kumar Dwivedi India 12 18 0.1× 187 1.5× 4 0.0× 5 0.1× 10 0.1× 62 332

Countries citing papers authored by Masakazu Oka

Since Specialization
Citations

This map shows the geographic impact of Masakazu Oka's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Masakazu Oka with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Masakazu Oka more than expected).

Fields of papers citing papers by Masakazu Oka

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Masakazu Oka. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Masakazu Oka. The network helps show where Masakazu Oka may publish in the future.

Co-authorship network of co-authors of Masakazu Oka

This figure shows the co-authorship network connecting the top 25 collaborators of Masakazu Oka. A scholar is included among the top collaborators of Masakazu Oka based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Masakazu Oka. Masakazu Oka is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
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Higuchi, Kentaro, Yosuke Tanaka, Ayako Suzuki, et al.. (2015). Effect of electrolyzed seawater treatment on the hatching rate of Pacific bluefin tuna Thunnus orientalis eggs. Aquaculture Science. 63(3). 333–341. 6 indexed citations
3.
4.
Oka, Masakazu, Kentaro Higuchi, Koichiro Gen, et al.. (2015). Prevalence of collision death in 2-year-old Pacific bluefin tuna, Thunnus orientalis, reared in land-based tanks for broodstock management. Aquaculture. 454. 252–256. 10 indexed citations
5.
Nishioka, Toyohiro, Koh-ichiro Mori, Takuma Sugaya, et al.. (2011). Viral Nervous Necrosis (VNN) in Seed Production of Red Tilefish Branchiostegus japonicus and Its Control. Aquaculture Science. 59(2). 275–282. 1 indexed citations
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Teruya, Kazuhisa, Kenzo Yoseda, Yuko Kurokawa, et al.. (2008). Effects of photoperiod on survival, growth and feeding of longtooth grouper Epinephelus bruneus larvae. NIPPON SUISAN GAKKAISHI. 74(6). 1009–1016. 9 indexed citations
8.
Okinaka, Yasushi, Koh-ichiro Mori, Takuma Sugaya, et al.. (2008). Phylogenetic Analysis of Betanodavirus RNA2 Identified from Wild Marine Fish in Oceanic Regions. Fish Pathology. 43(1). 19–27. 17 indexed citations
9.
Teruya, Kazuhisa, Kenzo Yoseda, Masakazu Oka, et al.. (2008). Effects of photoperiod on survival, growth and feeding of seven band grouper Epinephelus septemfaciatus larvae. NIPPON SUISAN GAKKAISHI. 74(4). 645–652. 17 indexed citations
10.
Dan, Shigeki, Katsuyuki Hamasaki, Takashi Yamashita, Masakazu Oka, & Shuichi Kitada. (2008). Evaluation of the stocking efficiency of giant cuttlefish Sepia latimanus hatchlings through marking experiments. NIPPON SUISAN GAKKAISHI. 74(4). 615–624. 4 indexed citations
11.
Oka, Masakazu, et al.. (2006). Broodstock management and induced spawning of flounder Paralichthys orbignyanus (Valenciennes, 1839) under a closed recirculated system. Revista de biología marina y oceanografía. 41(1). 15 indexed citations
12.
Satoh, Jun, et al.. (2006). Disinfection Method for Fertilized Eggs of Kuruma Prawn Penaeus japonicus Using Povidone-iodine. Fish Pathology. 41(3). 117–120. 1 indexed citations
13.
Shirakashi, Sho, Tomoyoshi Yoshinaga, Masakazu Oka, & Kazuo Ogawa. (2005). Larval Attachment and Development of the Monogenean Neoheterobothrium hirame under Low Water Temperature. Fish Pathology. 40(1). 33–35. 6 indexed citations
14.
Pakingking, Rolando V., Koh-ichiro Mori, Takuma Sugaya, et al.. (2005). Aquabirnavirus-induced Protection of Marine Fish against Piscine Nodavirus Infection. Fish Pathology. 40(3). 125–131. 15 indexed citations
15.
Oka, Masakazu, et al.. (2005). Effect of the incubation temperature on the embryonic development and hatching time of eggs of the red porgy Pagrus pagrus (Linne, 1758) (Pisces: Sparidae). Revista de biología marina y oceanografía. 40(2). 21 indexed citations
16.
Miyahara, Yuji, Kenta Goto, Masakazu Oka, & Takahiko Inazu. (2004). Remarkably Facile Ring‐Size Control in Macrocyclization: Synthesis of Hemicucurbit[6]uril and Hemicucurbit[12]uril. Angewandte Chemie International Edition. 43(38). 5019–5022. 108 indexed citations
17.
Miyahara, Yuji, Kenta Goto, Masakazu Oka, & Takahiko Inazu. (2004). Remarkably Facile Ring‐Size Control in Macrocyclization: Synthesis of Hemicucurbit[6]uril and Hemicucurbit[12]uril. Angewandte Chemie. 116(38). 5129–5132. 19 indexed citations
18.
Oka, Masakazu, et al.. (1999). Development of Growth Hormone Cells of Laboratory Reared Yellowfin Tuna <i>Thunnus albacares</i> Larvae and Early Juveniles. Fisheries Science. 65(4). 583–587. 10 indexed citations
19.
Takemura, Akihiro, et al.. (1996). Early Sex Distinction in Greater Amberjack Seriola dumerili Using Skin Mucus.. NIPPON SUISAN GAKKAISHI. 62(1). 62–67. 10 indexed citations
20.
Oka, Masakazu, et al.. (1996). Efficient Synthesis of 2,11,20-Triaza[3.3.3](2,6)pyridinophane. The Journal of Organic Chemistry. 61(23). 8304–8306. 12 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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