- 著者
- Yusuke Yamana Taiga Kunishima Masami Obuchi Takuma Fujii
- 出版者
- The Plankton Society of Japan, The Japanese Association of Benthology
- 雑誌
- Plankton and Benthos Research (ISSN:18808247)
- 巻号頁・発行日
- vol.15, no.2, pp.168-177, 2020-05-27 (Released:2020-05-30)
- 参考文献数
- 11
- 被引用文献数
- 3
With a focus on building an inventory of subtropical species of epifaunal holothurians and completing an environmental assessment, SCUBA surveys were carried out in the Amami Islands of Kagoshima Prefecture in southern Japan. The following 12 nominal species belonging to seven genera (subgenera), as well as two as yet undescribed species belonging to two genera, were observed: Bohadschia argus Jäger, 1833; B. bivittata Mitsukuri, 1912; B. vitiensis (Semper, 1867); Holothuria (Halodeima) atra Jäger, 1833; H.(H.) edulis Lesson, 1830; Holothuria (Microthele) nobilis (Selenka, 1867); Personothuria graeffei (Semper, 1867); Stichopus chloronotus Brandt, 1835; S. hermanni Semper, 1867; S. naso Semper, 1867; Thelenota anax H.L. Clark, 1921; Euapta sp.; Synapta maculata (Chamisso et Eysenhardt, 1821); and Opheodesoma sp. In the semi-closed waters around the Amami Islands, epifaunal holothurians showed what seemed to be species-specific distribution patterns related to topographical features. Furthermore, ignition loss values of feces and sediments suggested that selective deposit feeding may be predominant in at least several of the species sampled.
- 著者
- Masami Obuchi
- 出版者
- The Japanese Society of Systematic Zoology
- 雑誌
- Species Diversity (ISSN:13421670)
- 巻号頁・発行日
- vol.25, no.2, pp.309-328, 2020-11-16 (Released:2020-11-17)
- 参考文献数
- 67
- 被引用文献数
- 1
A faunal investigation of shallow-water (<50 m) comatulids of the Ashizuri-Uwakai Sea, Shikoku Island, southern Japan was performed between mid-2011 and early 2015, using scuba. It revealed that 30 species of seven families are distributed in the area, including two tropical species, Clarkcomanthus mirabilis (Rowe, Hoggett, Birtles, and Vail, 1986) and Clarkcomanthus mirus (Rowe, Hoggett, Birtles, and Vail, 1986) that are recorded in Japanese waters for the first time, as well as two species recently described during the research. Seventy-five percent of the listed species are tropical species, and 70% are shared with the fauna of the Ryukyu Islands, the southernmost part of Japan. These results agree with the general feature of the Ashizuri-Uwakai Sea in which the biota is strongly influenced by the Kuroshio Current flowing from the south.Key Words:feather stars, marine fauna, new records, Kuroshio Current.