マダイの成長に伴う聴覚閾値の変化

• 岩下 亜記

• 坂本 睦海

• 小島 隆人

• 渡辺 幸彦

• 添田 秀男

書誌事項

タイトル別名

• Growth Effects on the Auditory Threshold of Red Sea Bream.
• マダイの成長に伴う聴覚しきい値の変化
• マダイ ノ セイチョウ ニ トモナウ チョウカク イキチ ノ ヘンカ

抄録

Recently, the measurements of auditory thresholds of fish that used changing heart beat rate, have been performed for many kinds of fish in Japan. But almost all of them were reported in adult fish, and did not examine the hearing ability of young fish. Juvenile fish are mainly released, but it is not clear that they have the same hearing ability as adult fish. For that reason we aimed to make clear the auditory threshold of the 0 to 2-year-old red sea bream Pagrus major. For conditioning a 1sec pure tone sound followed by a 1sec electric shock (5V AC) were used. When the heart beat interval was more lengthy before the sound emission, we decided the auditory threshold. The audiograms of 0 to 2-year-old red sea bream were V shaped. Most sensitive frequencies were 300Hz for the 0-and 1-year-old fish, and 200Hz for the 2-year-old fish. The minimum thresholds were 92.4dB, 83.0dB and 71.3dB for the 0-, 1-and 2-year-old fish, respectively. As they grew, the threshold in lower frequencies between 100 to 200Hz was significantly decreased. It is considered that hearing sensivitity of red sea bream improves as they grow from juvenile to adult.

収録刊行物

• 日本水産学会誌

  日本水産学会誌 65 (5), 833-838, 1999

  公益社団法人 日本水産学会

キーワード

• マダイ
• オーディオグラム
• 聴覚閾値
• 年齢別聴覚閾値
• 心電図
• 心拍間隔
• 条件付け

詳細情報

• CRID: 1390001206413148288
• NII論文ID: 110003144874
• NII書誌ID: AN00193422
• DOI: 10.2331/suisan.65.833
• ISSN: 1349998X
• ISSN: 00215392
• NDL書誌ID: 4857765
• Web Site: https://agriknowledge.affrc.go.jp/RN/2030601200
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4857765
• Web Site: http://dl.ndl.go.jp/info:ndljp/pid/11075100
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • IRDB
  • NDL
  • Crossref
  • NDL-Digital
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可