碩士 / 國立臺灣海洋大學 / 水產養殖學系 / 106 / Pompano is an important economical cultured fish in Taiwan. In general, pompanos are able to be divided into long and short fin pompanos by the length of the dorsal fin. In order to identify the pompano species, the morphological features, X-ray and osteology of pompanos were examined. Using PRIMER 6 to analyze the data, 29 fish could be divided into three groups, group 1: numbers 1-3; group 2: numbers 4-17; group 3: numbers 18-29. Group 2 is called long fin pompano, because the values of height of 2nd dorsal fin/fork length were 35-48 % and the values of height of anal fin/fork length were 32-42 % and group 3 is called short fin pompano, because the values of height of 2nd dorsal fin/fork length were 27-34 % and the values of height of anal fin/fork length were 25-30 %.
The fish of numbers 1-17 have the morphological characteristics, the dorsal fin (Ⅵ, Ⅰ + 18) and anal fin (Ⅱ, Ⅰ + 16), anal fin dusky to dirty orange, lobe with a brownish anterior margin, no spots in a longitudinal row on or near lateral line, body uniformly pigmented in axillary base under pectoral fins, no teeth on tongue, both jaws with bands of small villiform teeth, first predorsal (supraneural) bone shaped like an inverted teardrop- or oval-shaped, supraoccipital bone of skull thin and blade-like, no exhibiting hyperostosis, and were identified as Trachinotus blochii. On the other hand, the fish of numbers 18-29 have the dorsal fin (Ⅵ, Ⅰ + 20) and anal fin (Ⅱ, Ⅰ + 17-18), anal fin bright to dirty yellow, lobe without a brownish anterior margin, no spots in a longitudinal row on or near lateral line, body uniformly pigmented in axillary base under pectoral fins, no teeth on tongue, both jaws with bands of small villiform teeth, first predorsal (supraneural) bone shaped like an inverted “L” with the arm projecting anteriorly, supraoccipital bone of skull thin and blade-like, exhibiting hyperostosis, and were identified as Trachinotus anak.
COI gene sequences of the samples were analyzed by MEGA 6 and divided into two groups. The sequences of numbers 1, 2, 3, 4, 6, 7 and 8 are belonged to group 1 which is Trachinotus blochii, and the sequences of numbers 18, 19, 27, 28, 29, 30 and 31 are belonged to group 2 which is Trachinotus anak. These COI gene sequences can be used as a reference for pompano species identification.
| Identifer | oai:union.ndltd.org:TW/106NTOU5086004 |
| Date | January 2018 |
| Creators | Chang, Min-Yu, 張敏榆 |
| Contributors | Lin, Cheng-Hui, 林正輝 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 54 |
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