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題 名 | Ontogenetic Changes of Sound Production in Japanese Croaker, Argyrosomus Japonicus (Sciaenidae)=日本銀身 (Argyrosomus japonicus)不同發育期之鳴音分析 |
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作 者 | 翁進坪; 黃寶貴; 莫顯蕎; | 書刊名 | 臺灣水產學會刊 |
卷 期 | 26:1 1999.03[民88.03] |
頁 次 | 頁13-21 |
分類號 | 387.101 |
關鍵詞 | 個體發育; 鳴音; 日本銀身; 鮸魚; Ontogeny; Sound production; Japanese croaker; |
語 文 | 英文(English) |
中文摘要 | 在研究於1994-1997年間在澎湖西鄉民冒養殖池進行日本銀身□(Argyrosomus japonicus)(俗稱鮸魚)不同魚齡(0.6-6歲齡)之鳴音特性記錄及分析,日本銀身□自6月齡 即可發出鳴音,低齡魚鳴音音頻(frequency)較高,音壓(pressure level)較低,音距(sound duration) 較短,高齡魚之鳴音音頻較低,音壓較強,音距較長。鳴音脈波數(pulses number)0.6-5齡之 未成熟魚無顯著變化,唯6齡以上成熟魚之鳴音脈波數顯著增加,鳴音脈波週期(pulses period) 減短,此鳴音特性變化應與生殖有關。 |
英文摘要 | The paper reports characteristics of sound production from 0.6-6 years old Japanese croaker (Argyrosomus japonicus). Our study was carried out in Penghu Islands from 1994 to 1997. A japonicus produced a drumming sound consisting of regular interval pulses. Sound production was only found in the fish older than 6 months (18-26 cm total length). The median dominant frequency decreased as the fish grow, but sound pressure level and sound duration increased with fish growth. Sound pulse number and pulse period changed significantly when fish developed to maturity stages (6-year-old). There is no significant alteration of pulse number among all immature stages (under 5-year-old). It is likely that the specific sound characteristics in the mature fish paly important and particular communicantion roles in order to perform a better adaptation to fulfil their successful reproduction. |
本系統中英文摘要資訊取自各篇刊載內容。