Yoshiaki KAI
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yoshiakikai.bsky.social
Yoshiaki KAI
@yoshiakikai.bsky.social
Fish biologist, Kyoto University
Reposted by Yoshiaki KAI
What's that? You didn't know boxfish made sound? Me neither...

It turns out all species (Atlantic & Pacific) do, yet little is known about how this evolved. A novel structure found only in the Atlantic species offered the answer, but it isn't quite what you think...🌍 🧪

doi.org/10.1093/biol...
November 25, 2025 at 8:30 AM
漁協だよりの原稿を書き書き。もう新年の挨拶、早い…。正月だし今回はタイのなかま。
November 25, 2025 at 7:42 AM
来月に来る予定だった某国の研究者が謎の理由でキャンセルしてきて闇。学会でもちらほらそう言うのを聞いたな…。
November 25, 2025 at 4:01 AM
カイワリがそれなりにあがってるけどノエは全くいない。さすが日本海。
November 25, 2025 at 3:56 AM
今年の冬は極めて普通な気がしてきた。
November 25, 2025 at 3:55 AM
共著論文が出ました。イブシクラノセナメハダカ。長いな。Stemonosudis fumea, a new barracudina (Aulopiformes: Paralepididae) from Japan, with taxonomic comments on the Stemonosudis rothschildi species complex

link.springer.com/article/10.1...
Stemonosudis fumea, a new barracudina (Aulopiformes: Paralepididae) from Japan, with taxonomic comments on the Stemonosudis rothschildi species complex - Ichthyological Research
A new barracudina, Stemonosudis fumea, is described on the basis of 12 specimens [78.7–235.2 mm in standard length (SL)], collected from Japan and adjacent waters. This new species belongs to the Stem...
link.springer.com
November 24, 2025 at 6:07 AM
Reposted by Yoshiaki KAI
A few fishes from Hawaii....
November 24, 2025 at 3:10 AM
伊右衛門カフェで食べてしまった…。
November 23, 2025 at 11:58 AM
魚類学会、ダンゴウオみたいな種の3Dプリンタ出力は見てもらえたでしょうか?
November 23, 2025 at 11:50 AM
Reposted by Yoshiaki KAI
今週21日から開催される日本魚類学会年会(in 東京海洋大学)の講演要旨集に、3D画像解析ソフトウェア MolcerPlus の広告を掲載しました。
X線CT撮影から画像解析・模型作成まで、すべて弊社にお任せください。

それから、22日からの企業展示にも出展いたします。
学会参加者のみなさま、ぜひいらしてください。
November 18, 2025 at 2:22 PM
今日は休みをとっていろいろ。冬用タイヤも履いた。みなさん学会楽しんで〜。
November 21, 2025 at 8:24 AM
Reposted by Yoshiaki KAI
Great video highlighting the value of natural history collections and the importance of preserving them for generations to come
The Library of Life - Dahiana Arcila, Ricardo Betancur-R., Ben Frable
YouTube video by FishEvolutionLab-Edu
youtube.com
November 19, 2025 at 11:51 PM
Reposted by Yoshiaki KAI
Hybridization but minimal introgression: ecologically-based divergent selection maintains a steep hybrid zone in parapatric stickleback fish https://www.biorxiv.org/content/10.1101/2025.11.17.688987v1
November 18, 2025 at 5:35 PM
Reposted by Yoshiaki KAI
Very excited to share my exploration of the phylogenetics of early ray-finned fishes, out today in the Anatomical Record! Really busy day but I’ll have more info shortly.

anatomypubs.onlinelibrary.wiley.com/doi/10.1002/...
An ontological morphological phylogenetic framework for living and extinct ray‐finned fishes (Actinopterygii)
The ray-finned fishes include one out of every two species of living vertebrates on Earth and have an abundant fossil record stretching 380 million years into the past. The division of systematic kno...
anatomypubs.onlinelibrary.wiley.com
November 17, 2025 at 12:52 PM
Reposted by Yoshiaki KAI
This study presents the first records of the broad-tail stingray, 𝐵𝑎𝑡ℎ𝑦𝑡𝑜𝑠ℎ𝑖𝑎 𝑏𝑟𝑒𝑣𝑖𝑐𝑎𝑢𝑑𝑎𝑡𝑎, in the East China Sea, significantly extending its known distribution in the Northwest Pacific.

🔗 doi.org/10.3897/zse....
November 19, 2025 at 6:59 AM
京都でいくつかの研究室が集まってセミナー。舞鶴は結構な雨ですけどね。
November 18, 2025 at 10:19 AM
今日は近大の亀先生御一行がやってきて魚類学会の発表練習とか。たくさん修正があるかもやけどがんばれー。
November 17, 2025 at 12:00 PM
ブリが来た。
November 17, 2025 at 5:10 AM
出るべくして出た感のクサウオ。A new species of the genus Psednos (Teleostei: Liparidae) from the Emperor Seamount Chain and the first record of this genus from the northwestern Pacific Ocean

www.zin.ru/journals/zsr...
A new species of the genus Psednos (Teleostei: Liparidae) from the Emperor Seamount Chain and the first record of this genus from the northwestern Pacific Ocean
Psednos kaganovskii sp. nov. is described from the Emperor Seamount Chain. Based on fin ray and vertebral counts (39 dorsal and 35 anal fin rays, 47 total vertebrae), the new species belongs to the P....
www.zin.ru
November 15, 2025 at 10:45 AM
Reposted by Yoshiaki KAI
魚類学会ですが、

『オオガタスジシマドジョウ移入集団の由来と河川への急速な生態適応の可能性』

というタイトルで口頭発表します。シマドジョウの異質倍数化と生態適応に関する「シマドジョウ問題」にご関心の方は是非お聞きください。
November 15, 2025 at 1:34 AM
今日は台湾から標本観察に来たポスドクくんと。コショウダイが濃厚な感じ。隣はマアジ。
November 14, 2025 at 3:09 PM
今日は地元で。久しぶりにクロアジモドキ。
November 13, 2025 at 6:13 AM
台風の進路が気になってましたが南紀へ。
November 11, 2025 at 11:31 PM
Chenさんの研究室のAnthiadidae論文。すごい。A 40-year taxonomic enigma: multigene phylogeny resolves the polyphyly of Plectranthias (Perciformes: Anthiadidae) and supports a revised taxonomy

academic.oup.com/zoolinnean/a...
A 40-year taxonomic enigma: multigene phylogeny resolves the polyphyly of Plectranthias (Perciformes: Anthiadidae) and supports a revised taxonomy
Abstract. Anthiadidae, a family of shallow and deep-water reef-associated fishes, include about 250 species distributed widely from tropical to temperate r
academic.oup.com
November 11, 2025 at 11:03 PM
能登から届きました。珍しいけど今年2回目。
November 10, 2025 at 5:56 AM