碩士 / 國立海洋大學 / 海洋生物研究所 / 92 / Abstract
Sternoptychidae is a family of the Stomiformes. They are bathypelagic or benthopelagic. They are often caught at the continental slop or rise, and may be found in 3000-4000 m or deeper waters of Indian, Atlantic, and Pacific Oceans. Some species have vertical migration behavior and, like lanternfish, can be eaten by large predators such as whale and tuna. There are 2 subfamilies, 10 genera, and 72 species in this family worldwide.
The samples of this study were collected in waters around Taiwan by the research vessels Ocean Researcher I and Ⅲ, and R/V Fishery Researcher I. Samples were also collected from fishing borts at two Taiwan ports. The previous records indicated that Taiwan has 3 species belonging to 2 genera (Shen, 1993). In this study, we collected 15 species which belong to 6 genera. In these specimens, the three species which belong to Maurolicinae are Argyripnus sp. , Maurolicus sp., and Valencinellus tripunctulatus. They are all new record genera of Sternoptychidae. Argyripnus sp. may be a new species; Maurolicus sp. can not be identified to the species level because some of the fish’s characters were damaged.
Besides the species Argyropelecus aculeatus and Polyipnus stereope which have been recorded before, we collected 9 new record species in Sternoptychinae. They are Argyropelecus affinis, A. hemigymnus, A. gigas, Polyipnus danae, P. spinifer, Polyipnus triphanos, Sternoptyx diaphana, S. pseudobscura, and S. obscura. The species Polyipnus triphanos in the old record was actually a new species from Taiwan. We also collected the species Polyipnus triphanos in this study.
The relationship of genus Maurolicus with other genera in Sternoptychidae had not been determined (Weitzman, 1974; Harold & Weitzman, 1996). Our phylogenetic analyses used 25 characters including photophore numbers and descriptional characters. We concluded that the genus Maurolicus is closer to the genus Valenciennellus than Argyripnus. This conclusion concurs to one of Harold’s hypotheses.
| Identifer | oai:union.ndltd.org:TW/092NTOU0270003 |
| Date | January 2004 |
| Creators | CHANG CHUN HSIN, 張君欣 |
| Contributors | Shao, K. T., Chan, T. Y., 邵廣昭, 陳天任 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 68 |
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