Marin Matsushiro
| Faculty of Health Care and Medical Sports,Department of Medical Sports,Animal Medical Course | Lecturer |
Last Updated :2025/10/07
■Researcher basic information
Field Of Study
■Career
Educational Background
- Apr. 2017 - Mar. 2022, Rakuno Gakuen University, Graduate School Department of Veterinary Medicine
- Apr. 2015 - Mar. 2017, Rakuno Gakuen University, Graduate School Department of Veterinary Medicine
- Apr. 2011 - Mar. 2015, Rakuno Gakuen University, School of Veterinary Medicine, Department of Veterinary Science
■Research activity information
Paper
- Contour variations and acoustic characteristics of whistle sounds emitted by Pacific white‐sided dolphins in shallow coastal waters of the Sea of Japan
Marin Matsushiro; Misato Nakamura; Yuko Chayahara; Takanori Kooriyama
Marine Mammal Science, 11 Dec. 2021, [Reviewed]
Abstract
Pacific white‐sided dolphins, Lagenorhynchus obliquidens (PWSDs), migrate along the coast of Japan. PWSDs rarely emit whistles, instead utilizing pulses, unlike many other delphinid species that frequently emit whistle sounds. In the present study, we aimed to clarify the acoustic characteristics and repertoire of the whistle of PWSDs, which have not been reported so far. We analyzed PWSD whistle sound systems (e.g., acoustic parameters and contours) during boat surveys and using passive acoustic monitoring in shallow coastal waters in the northern Sea of Japan. PWSDs in Shakotan rarely emitted whistles, while the burst pulse frequently was as reported in previous studies in other waters. The PWSD whistle vocalization rates were higher during traveling than during foraging. The frequency and duration of their whistles did not appear to change between behaviors. Although complex multiloop whistles were not recorded, whistle contours were classified into seven types. Whistles are often recorded intensively in a short period as a sequence or bout. Considering the extremely low whistle vocalization rates, dolphins may choose whistles instead of pulsed sounds in limited contexts. Our results shed light on the differences in whistle sound usage within odontocete species. - Cortisol changes in bottlenose dolphins in the dolphin interactive program
Marin Matsushiro; Hirofumi Kurono, Keiko Yamamoto, Takanori Kooriyama
Japanese Journal of Veterinary Research, May 2021, [Reviewed] - Survey of ophthalmic disorders among captive pinnipeds in Japan
Misato NAKAMURA; Marin MATSUSHIRO; Masatoshi TSUNOKAWA; Seiya MAEHARA; Takanori KOORIYAMA
Journal of Veterinary Medical Science, 2021, [Reviewed] - Bacterial Community Analysis of Captive Marine Mammals Pool Water using Next-Generation Sequencer
Sayuri WAKAMATSU; Misato NAKAMURA; Marin MATSUSHIRO; Masatoshi TSUNOKAWA; Yoshinori SHIMAMOTO; Daiji ENDOH; Takanori KOORIYAMA
Japanese Journal of Zoo and Wildlife Medicine, 23 Jun. 2020, [Reviewed] - Composition Analysis of the Colostrum and Attempted Hand-rearing of a Neglected Harbor Porpoise (Phocoena phocoena)
Matsushiro M; Tsunokawa M; Matsuishi T; Kooriyama T
Japanese journal of Zoo and Wildlife Medicine, Jun. 2020, [Reviewed]
Lectures, oral presentations, etc.
- 高齢社会における身近な地域のペット飼育とは,飼い主および非飼い主の視点から
28 Jun. 2025 - Assessment of Pacific white-sided dolphin migration patterns by burst-pulse monitoring off the coast of the Syakotan Peninsula, Hokkaido, Japan
Matsushiro M; Mizuguchi D; Kooriyama T
World Marine Mammal Conference, Dec. 2019, The Society for Marine Mammalogy
Pacific white-sided dolphins (PWS) migrate within both the Sea of Japan and the western North Pacific along the Japanese archipelago. Shakotan Peninsula, Hokkaido, Japan is known as an important route of PWS migrating along Sea of Japan. Little is known, however, about their migration patterns or their schooling patterns along the peninsula.
Here we investigated seasonal and diurnal patterns of PWS occurrence along the peninsula by continuously recording their underwater vocalization. Two autonomous recorders were moored from April through June 2018 to capture their burst pulse (BP) sounds 24-hours. The largest number of BPs was recorded in early May and in the morning, indicating the seasonal and diurnal peak of their activity. In addition, BPs were recorded over several hours continuously, suggesting that dolphins did not merely pass through the area but stay there for feeding and/or resting. Additionally, the PWS produced stereotypic combinations of BPs (90 types in total), which should be used as group-specific signals. Of these, 14 types were repeatedly recorded over multiple days, and further 6 types were recorded even over multiple years. Furthermore, some types of BPS were recorded in pairs on multiple days.
These results suggest that the same groups might regularly migrate to the Peninsula with other familiar groups. The present study reveals the migration pattern of PWS in the waters near the Peninsula and also the degree of intimacy in this PWS group affecting its fission-fusion dynamics. - 音声モニタリングによる積丹半島沿岸のカマイルカの回遊生態解明
Sep. 2018 - 野生カマイルカにおけるパターン化したパルス音を使ったコミュニケーション
Aug. 2017 - 積丹と室蘭に来遊するカマイルカ(Lagenorhynchus obliquidens）の音響特性
Nov. 2016 - 野生カマイルカ（Lagenorhynchus obliquidens）の鳴音と行動の関連性
Sep. 2015 - 積丹の海を回遊するカマイルカの音声解析
Oct. 2014
Research Themes
- 音声モニタリングによる北海道沿岸におけるカマイルカの日周期性回遊生態の解明
Apr. 2019 - Mar. 2020 - ドルフィンプログラムにおける飼育下ハンドウイルカの音響特性解析と教育プログラムへの応用
Apr. 2017 - Mar. 2018 - 北海道に来遊するカマイルカの音響生態と日周期性回遊生態に関する研究
Apr. 2017 - Mar. 2018
Social Contribution Activities
■Achievement List
Lectures, oral presentations, etc.
- 31 Oct. 2014, 31 Oct. 2014 - 02 Nov. 2014, Not exist, Japan, Domestic conferences, Not International Collabolation, Poster sessions
Url - 07 Sep. 2015, 07 Sep. 2015 - 09 Sep. 2015, Not exist, Japan, Domestic conferences, Not International Collabolation, Verbal presentations (general)
Url - 30 Aug. 2017, 30 Aug. 2017 - 01 Sep. 2017, Not exist, Japan, Domestic conferences, Not International Collabolation, Poster sessions
Url - 04 Oct. 2018, Not exist, Japan, Domestic conferences, Not International Collabolation, Poster sessions
Url - Assessment of Pacific white-sided dolphin migration patterns by burst-pulse monitoring off the coast of the Syakotan Peninsula, Hokkaido, Japan
Matsushiro M, Mizuguchi D, Kooriyama T., World Marine Mammal Conference, 09 Sep. 2018, 09 Sep. 2018 - 12 Sep. 2018, Not exist, English, Spain, International conferences, Not International Collabolation, Poster sessions
Url, We investigated seasonal and diurnal patterns of PWS occurrence along the peninsula by continuously recording their underwater vocalization. The present study reveals the migration pattern of PWS in the waters near the Peninsula and also the degree of intimacy in this PWS group affecting its fission-fusion dynamics. - 08 Sep. 2023, 07 Sep. 2023 - 10 Sep. 2023, Not exist, Japan, Domestic conferences, Not International Collabolation, Poster sessions
Url - 01 Aug. 2017, Exist, Japan, Domestic conferences, Not International Collabolation, Public discourses, seminars, tutorials, courses, lectures and others
Url - 01 Aug. 2015, Exist, Japan, Domestic conferences, Not International Collabolation, Public discourses, seminars, tutorials, courses, lectures and others
Url
■University education and qualification information
Qualifications, licenses
- 01 Jul. 2017
Registered Veterinary Nurse, Obtained the pre-certification qualification prior to the transition to national qualification (Veterinary Nurses for Companion Animals) - 03 Feb. 2015
Pet Care Adviser, Basic habits and care methods of pet animals. - 01 Feb. 2024
Veterinary Nurses for Companion Animals(VNCA), Obtained national qualification in Veterinary nursing.
