9 0 0 0 OA 石川県からクロヘリメジロザメ(メジロザメ目:メジロザメ科)の初記録
- 著者
- 角田 啓斗 新田 理人 豊田 賢治
- 出版者
- アクオス研究所
- 雑誌
- 水生動物 (ISSN:24348643)
- 巻号頁・発行日
- vol.2023, pp.AA2023-22, 2023-11-01 (Released:2023-11-01)
A carcharhinid shark was caught in a set-net fishery off Wajima City in Ishikawa Prefecture, Japan. The individual was identified as a copper shark Carcharhinus brachyurus based on morphological characteristics and DNA barcoding using the 12S ribosomal RNA and cytochrome c oxidase subunit l gene (cox1) regions of the mitochondrial DNA. In Japan, the copper shark has been recorded from the Sea of Japan, including the coasts of Hokkaido, Niigata and Yamaguchi prefectures; and from the Pacific coast, including the Kashima-nada Sea, the east coast of the Boso Peninsula, Sagami Bay, the Ariake Sea and the south coast of Kyushu. This report represents the first reliable record of the copper shark from Ishikawa Prefecture.
- 著者
- 新田 理人 松本 優 浦部 美佐子
- 出版者
- 日本動物分類学会
- 雑誌
- タクサ:日本動物分類学会誌 (ISSN:13422367)
- 巻号頁・発行日
- vol.55, pp.9-14, 2023-08-31 (Released:2023-09-08)
- 参考文献数
- 39
Larval cestodes of Anthobothrium sp. (Cestoda: “Tetraphyllidea”) were collected from the gills of the bigfin reef squid, “shiroika” Sepioteuthis lessoniana Férussac in Lesson, 1832 (Cephalopoda: Loliginidae) collected off Shirahama in Wakayama Prefecture, Japan. These specimens were morphologically described with DNA information (28S rDNA and cox1) and reported as a new host record. In addition, records of Anthobothrium species in Japan were compiled, and a list of parasites and symbionts of S. lessoniana was provided.
5 0 0 0 OA 日本産魚類に寄生する単後吸盤亜綱(単生綱:扁形動物門)の多様性
- 著者
- 新田 理人
- 出版者
- 日本動物分類学会
- 雑誌
- タクサ:日本動物分類学会誌 (ISSN:13422367)
- 巻号頁・発行日
- vol.43, pp.11-29, 2017-08-31 (Released:2017-08-25)
- 参考文献数
- 131
The class Monogenea (Platyhelminthes) is commonly parasitic on or in aquatic or amphibious vertebrates, mainly fishes, but rarely on aquatic invertebrates. In Japan, a total of 240 nominal species of monogeneans has so far been reported. Freshwater fishes are mainly parasitized by monopisthocotyleans. Based on the number of monogenean species collected by me from Japanese freshwater fishes, 600 to 900 species of freshwater monogeneans may be found on approximately 500 species of freshwater fishes. However, only about 80 monogenean species have been reported to date. And, in total, 15 alien monopisthocotylean species have been reported from alien freshwater fishes in Japan. Monogeneans can establish more readily together with their hosts than other groups of parasites because of their simple life cycle, and some of monogeneans, especially alien species, are known to cause negative impacts on wild and farmed fish stocks. The fauna of alien monogeneans in Japan should be urgently clarified. Only 12 species of monogeneans have been reported from six of the 90 endangered freshwater fish species. It is highly desirable to clarify the monogenean fauna of the freshwater fishes on the verge of co-extinction and to conserve biological diversity of monogenean species.