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Updated: Sep 9, 2025
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ライオンフィッシュ (Pterois spp.) に関する筋肉の構造と発達に関する洞察 音声について
Roxanne B Holmes1, Nadia M Hamilton1, Katharine E Criswell2
1Department of Zoology, University of Cambridge, Cambridge, UK.
Journal of fish biology
|August 28, 2025
まとめ
ライオンフィッシュは 声の伝達のために 泳ぎ管に付着した音の筋肉を使います 研究では,ライオンフィッシュ種の年齢や性に関係するこれらの筋肉の違いは見つかりませんでした.
科学分野:
- イチオロジー
- バイオアコースティック
- 機能的形態学
背景:
- 魚のコミュニケーションには 声の信号が不可欠です
- ライオンフィッシュ (Pterois volitans と Pterois miles) は音を発する音の筋肉を持っていますが,そのメカニズムと機能は不明です.
- こうした声の理解は 侵入生物の管理にとって重要です
研究 の 目的:
- 3Dバイオイメージングを使用してP. volitansとP. milesの音筋を解剖学的に記述する.
- P. volitansのオントゲニーにおける音筋の発達を定量化するために.
- 性選択における役割を示唆する 音の筋肉の性二変性を テストする
主な方法:
- 三次元バイオイマージングを使って 音の筋肉の解剖を視覚化しました
- P. volitansの音筋は,オントジェネティックと性的な変化を分析するために定量化されました.
- 筋肉の長さと質量は体長に比例して測定された.
主要な成果:
- P. volitansとP. milesは,ペアリングされた外側音動脈筋 (ESSM) と,外側音動脈筋と関連した追加の前側音動脈筋を持っています.
- 音筋はP. volitansのオントゲニー全体に存在していた.
- 性別や異なる発達段階における音筋投資の有意な違いは見つかりませんでした.
結論:
- 特定された音の筋肉は 浮力制御と音の生成の両方に 役割を果たしているようです
- 性二形性の欠如は,音の筋肉が主に性選択によって駆動されないことを示唆している.
- 体の大きさは,音の筋肉の大きさに影響する重要な要因であり,浮力調節に関連する制約が原因である可能性があります.
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