McDonald Michael E
Department of Civil Engineering and Zoology, North Carolina State University, 27650, Raleigh, NC, USA.
Oecologia. 1985 May;66(2):246-249. doi: 10.1007/BF00379861.
The filter feeding blue tilapia, Tilapia aurea, was fed three different algae. Blue tilapia ingestion of two green algae, Chlamydomonas sp. and Ankistrodesmus falcatus and the filamentous blue-green alga, Anabaena flos-aquae, ranged from 21%-89% of the available cells. There were significant differences in the assimilation of algal carbon by the fish depending on the alga fed; A. flos-aquae was the easiest to assimilate (83%). The fish respired significantly less of the Chlamydomonas sp. ingested carbon (15%). The gross growth efficiency of fishes fed either green alga was not significantly different (22%-24%), but these efficiencies were significantly less than the gross growth efficiency of fish fed A. flos-aquae (46%). The carbon budgets for fish feeding on the green algae were similar to that constructed from the literature for a congener fed a mixed algae diet. However, the assimilation component of the budget for blue tilapia fed A. flos-aquae was 2 times greater than that of the literature budget.
以滤食方式进食的蓝罗非鱼（奥利亚罗非鱼）被投喂了三种不同的藻类。蓝罗非鱼对两种绿藻（衣藻属和镰形纤维藻）以及丝状蓝绿藻（水华鱼腥藻）的摄食量占可获取细胞的21% - 89%。根据投喂的藻类不同，鱼对藻类碳的同化存在显著差异；水华鱼腥藻最易被同化（83%）。鱼对摄入的衣藻属碳的呼吸消耗显著较少（15%）。投喂两种绿藻的鱼的总生长效率没有显著差异（22% - 24%），但这些效率显著低于投喂水华鱼腥藻的鱼的总生长效率（46%）。以绿藻为食的鱼的碳预算与文献中构建的以混合藻类为食的同属鱼类的碳预算相似。然而，投喂水华鱼腥藻的蓝罗非鱼的碳预算同化部分比文献预算的同化部分大两倍。
