Fussy Feeders : Phyllosoma Larvae of the Western Rocklobster (Panulirus cygnus) Demonstrate Prey Preference Megan I. Saunders, Peter A. Thompson, Andrew G. Jeffs, Christin Sawstrom, Nikolas Sachlikidis, Lynnath E. Beckley, Anya M. Waite Publish on PLOS One (May 2012) 指指指指 指指指 ： 指指指指 指指指 ：
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Fussy Feeders : Phyllosoma Larvae of the Western Rocklobster (Panulirus cygnus) Demonstrate Prey PreferenceMegan I. Saunders, Peter A. Thompson, Andrew G. Jeffs, Christin Sawstrom, Nikolas Sachlikidis, Lynnath E. Beckley, Anya M. WaitePublish on PLOS One (May 2012)
指導老師：羅文增報告學生：王凱澤
Western Rocklobster (Panulirus cygnus) Phyllosoma Larvae
The nutritional requirements and wild prey of the planktotrophic larval stage (phyllosoma) of P. cygnus were previously unknown.
Most valuable single species fishery in Australia
Purpose
Hampering both management and aquaculture efforts.
Material
28oS
30oS
32oS
34oS
July 2010
August-September 2011
Mesh：335um、 1mm Net opening： 1m2
Depth： 0-5mTowing time：15min
Krill (primarily Euphausia recurva, E. mutica, and E. gibba) (15.4±3.8 mm)
Salps (primarily Ihlea magalhanica) (11.4±3.1 mm)
Chaetognaths (primarily Flaccisagitta enflata) (20.3±3.0 mm)
Method
Publish reportPilot studySize
Method
Prey choice experiment
24 hours
Method
6 days
Single prey experiment
Method
Prey conc. experiment
Method
Characterization of prey field
10 nets of335 mm mesh (mouth area 1.0 m2)
4 depths (1–50, 50–100, 100–150, and 150–200 m)5–7 stations
28oS
30oS
32oS
34oS
Method
Fatty acid lab analysis
frozen at -20oC
captured
analysis
Using the samples from singel prey expriment.
Results
毛顎類被取食的數量是其他種類飼料的 2-8 倍。毛顎類被取食速率隨著濃度上升而提高 。這些毛顎類和龍蝦幼生的酯質與酯肪酸組成變異極大，顯示他們應該生存於貧營養的大洋食物鏈，其生活環境之食物來源可能受到限制。持續取食毛顎類六天以上的龍蝦幼生，其酯肪酸組成有明顯改變，顯示其營養狀態的改善。
提供現今龍蝦養殖產業，餌料研發方面有了具體的方向。
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